./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8 --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 c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 --- 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-2329fc7 [2022-12-13 17:29:32,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:29:32,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:29:32,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:29:32,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:29:32,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:29:32,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:29:32,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:29:32,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:29:32,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:29:32,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:29:32,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:29:32,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:29:32,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:29:32,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:29:32,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:29:32,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:29:32,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:29:32,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:29:32,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:29:32,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:29:32,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:29:32,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:29:32,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:29:32,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:29:32,561 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:29:32,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:29:32,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:29:32,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:29:32,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:29:32,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:29:32,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:29:32,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:29:32,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:29:32,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:29:32,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:29:32,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:29:32,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:29:32,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:29:32,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:29:32,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:29:32,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 17:29:32,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:29:32,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:29:32,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:29:32,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:29:32,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:29:32,586 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:29:32,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:29:32,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:29:32,586 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:29:32,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:29:32,587 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:29:32,587 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:29:32,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:29:32,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:29:32,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:29:32,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:29:32,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:29:32,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:29:32,588 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 17:29:32,588 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:29:32,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:29:32,588 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:29:32,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:29:32,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:29:32,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:29:32,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:29:32,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:29:32,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:29:32,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:29:32,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:29:32,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:29:32,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:29:32,589 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:29:32,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:29:32,589 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:29:32,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:29:32,590 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:29:32,590 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_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 [2022-12-13 17:29:32,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:29:32,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:29:32,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:29:32,766 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:29:32,766 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:29:32,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2022-12-13 17:29:35,246 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:29:35,452 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:29:35,452 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2022-12-13 17:29:35,463 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/data/08d6a8319/14837551748f4a4b9b3251a6c88af290/FLAG172f5f1d6 [2022-12-13 17:29:35,853 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/data/08d6a8319/14837551748f4a4b9b3251a6c88af290 [2022-12-13 17:29:35,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:29:35,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:29:35,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:29:35,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:29:35,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:29:35,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:29:35" (1/1) ... [2022-12-13 17:29:35,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df87432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:35, skipping insertion in model container [2022-12-13 17:29:35,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:29:35" (1/1) ... [2022-12-13 17:29:35,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:29:35,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:29:36,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:29:36,279 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:29:36,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:29:36,385 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:29:36,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36 WrapperNode [2022-12-13 17:29:36,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:29:36,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:29:36,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:29:36,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:29:36,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,436 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2022-12-13 17:29:36,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:29:36,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:29:36,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:29:36,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:29:36,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,469 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:29:36,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:29:36,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:29:36,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:29:36,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (1/1) ... [2022-12-13 17:29:36,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:29:36,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:29:36,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:29:36,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:29:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:29:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:29:36,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:29:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:29:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 17:29:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:29:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 17:29:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 17:29:36,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:29:36,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:29:36,534 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 17:29:36,640 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:29:36,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:29:36,850 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:29:36,858 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:29:36,858 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 17:29:36,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:29:36 BoogieIcfgContainer [2022-12-13 17:29:36,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:29:36,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:29:36,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:29:36,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:29:36,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:29:35" (1/3) ... [2022-12-13 17:29:36,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20715c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:29:36, skipping insertion in model container [2022-12-13 17:29:36,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:29:36" (2/3) ... [2022-12-13 17:29:36,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20715c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:29:36, skipping insertion in model container [2022-12-13 17:29:36,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:29:36" (3/3) ... [2022-12-13 17:29:36,869 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2022-12-13 17:29:36,877 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:29:36,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:29:36,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 17:29:36,889 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:29:36,948 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:29:36,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 103 transitions, 211 flow [2022-12-13 17:29:37,010 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-12-13 17:29:37,010 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:29:37,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-12-13 17:29:37,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 103 transitions, 211 flow [2022-12-13 17:29:37,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 102 transitions, 207 flow [2022-12-13 17:29:37,020 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:29:37,028 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 102 transitions, 207 flow [2022-12-13 17:29:37,030 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 102 transitions, 207 flow [2022-12-13 17:29:37,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 102 transitions, 207 flow [2022-12-13 17:29:37,050 INFO L130 PetriNetUnfolder]: 4/102 cut-off events. [2022-12-13 17:29:37,050 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:29:37,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 102 events. 4/102 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2022-12-13 17:29:37,052 INFO L119 LiptonReduction]: Number of co-enabled transitions 2220 [2022-12-13 17:29:38,458 INFO L134 LiptonReduction]: Checked pairs total: 9138 [2022-12-13 17:29:38,458 INFO L136 LiptonReduction]: Total number of compositions: 79 [2022-12-13 17:29:38,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:29:38,479 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;@133226b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:29:38,479 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 17:29:38,484 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-12-13 17:29:38,484 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:29:38,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:29:38,485 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:29:38,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:29:38,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:29:38,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1616016811, now seen corresponding path program 1 times [2022-12-13 17:29:38,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:29:38,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874381235] [2022-12-13 17:29:38,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:38,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:29:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:29:38,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:29:38,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874381235] [2022-12-13 17:29:38,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874381235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:29:38,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:29:38,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:29:38,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517901880] [2022-12-13 17:29:38,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:29:38,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:29:38,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:29:38,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:29:38,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:29:38,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 182 [2022-12-13 17:29:38,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2022-12-13 17:29:38,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:29:38,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 182 [2022-12-13 17:29:38,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:29:38,780 INFO L130 PetriNetUnfolder]: 37/167 cut-off events. [2022-12-13 17:29:38,780 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:29:38,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 167 events. 37/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 626 event pairs, 36 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 246. Up to 89 conditions per place. [2022-12-13 17:29:38,781 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 15 selfloop transitions, 2 changer transitions 0/37 dead transitions. [2022-12-13 17:29:38,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 111 flow [2022-12-13 17:29:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:29:38,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:29:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2022-12-13 17:29:38,791 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.554945054945055 [2022-12-13 17:29:38,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2022-12-13 17:29:38,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2022-12-13 17:29:38,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:29:38,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2022-12-13 17:29:38,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 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) [2022-12-13 17:29:38,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2022-12-13 17:29:38,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 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) [2022-12-13 17:29:38,802 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 75 flow. Second operand 3 states and 303 transitions. [2022-12-13 17:29:38,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 111 flow [2022-12-13 17:29:38,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:29:38,806 INFO L231 Difference]: Finished difference. Result has 41 places, 37 transitions, 86 flow [2022-12-13 17:29:38,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=37} [2022-12-13 17:29:38,810 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2022-12-13 17:29:38,810 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 86 flow [2022-12-13 17:29:38,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2022-12-13 17:29:38,810 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:29:38,810 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:29:38,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:29:38,811 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:29:38,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:29:38,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1853811792, now seen corresponding path program 1 times [2022-12-13 17:29:38,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:29:38,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880511726] [2022-12-13 17:29:38,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:38,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:29:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:29:38,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:29:38,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880511726] [2022-12-13 17:29:38,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880511726] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:29:38,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077810641] [2022-12-13 17:29:38,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:38,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:29:38,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:29:38,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:29:38,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 17:29:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:38,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:29:38,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:29:38,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:29:38,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:29:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:29:38,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077810641] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:29:38,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:29:38,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-12-13 17:29:38,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049704028] [2022-12-13 17:29:38,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:29:38,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:29:38,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:29:39,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:29:39,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:29:39,018 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 182 [2022-12-13 17:29:39,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 86 flow. Second operand has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 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) [2022-12-13 17:29:39,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:29:39,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 182 [2022-12-13 17:29:39,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:29:39,084 INFO L130 PetriNetUnfolder]: 37/170 cut-off events. [2022-12-13 17:29:39,084 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:29:39,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 170 events. 37/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 627 event pairs, 36 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 265. Up to 89 conditions per place. [2022-12-13 17:29:39,085 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 15 selfloop transitions, 5 changer transitions 0/40 dead transitions. [2022-12-13 17:29:39,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 138 flow [2022-12-13 17:29:39,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:29:39,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:29:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 587 transitions. [2022-12-13 17:29:39,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5375457875457875 [2022-12-13 17:29:39,088 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 587 transitions. [2022-12-13 17:29:39,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 587 transitions. [2022-12-13 17:29:39,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:29:39,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 587 transitions. [2022-12-13 17:29:39,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 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) [2022-12-13 17:29:39,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:39,093 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:39,093 INFO L175 Difference]: Start difference. First operand has 41 places, 37 transitions, 86 flow. Second operand 6 states and 587 transitions. [2022-12-13 17:29:39,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 138 flow [2022-12-13 17:29:39,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 40 transitions, 134 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 17:29:39,096 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 118 flow [2022-12-13 17:29:39,096 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2022-12-13 17:29:39,097 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 9 predicate places. [2022-12-13 17:29:39,097 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 118 flow [2022-12-13 17:29:39,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 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) [2022-12-13 17:29:39,098 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:29:39,098 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:29:39,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:29:39,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-13 17:29:39,300 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:29:39,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:29:39,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1638782235, now seen corresponding path program 2 times [2022-12-13 17:29:39,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:29:39,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550934089] [2022-12-13 17:29:39,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:39,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:29:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 17:29:39,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:29:39,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550934089] [2022-12-13 17:29:39,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550934089] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:29:39,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:29:39,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:29:39,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496293512] [2022-12-13 17:29:39,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:29:39,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:29:39,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:29:39,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:29:39,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:29:39,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 182 [2022-12-13 17:29:39,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2022-12-13 17:29:39,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:29:39,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 182 [2022-12-13 17:29:39,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:29:40,085 INFO L130 PetriNetUnfolder]: 209/519 cut-off events. [2022-12-13 17:29:40,085 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:29:40,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1015 conditions, 519 events. 209/519 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2526 event pairs, 86 based on Foata normal form. 0/497 useless extension candidates. Maximal degree in co-relation 982. Up to 259 conditions per place. [2022-12-13 17:29:40,090 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 67 selfloop transitions, 22 changer transitions 0/97 dead transitions. [2022-12-13 17:29:40,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 97 transitions, 410 flow [2022-12-13 17:29:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:29:40,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:29:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 578 transitions. [2022-12-13 17:29:40,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5293040293040293 [2022-12-13 17:29:40,094 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 578 transitions. [2022-12-13 17:29:40,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 578 transitions. [2022-12-13 17:29:40,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:29:40,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 578 transitions. [2022-12-13 17:29:40,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.33333333333333) internal successors, (578), 6 states have internal predecessors, (578), 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) [2022-12-13 17:29:40,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:40,100 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:40,100 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 118 flow. Second operand 6 states and 578 transitions. [2022-12-13 17:29:40,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 97 transitions, 410 flow [2022-12-13 17:29:40,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 97 transitions, 396 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 17:29:40,103 INFO L231 Difference]: Finished difference. Result has 56 places, 62 transitions, 250 flow [2022-12-13 17:29:40,104 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=250, PETRI_PLACES=56, PETRI_TRANSITIONS=62} [2022-12-13 17:29:40,104 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 17 predicate places. [2022-12-13 17:29:40,104 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 62 transitions, 250 flow [2022-12-13 17:29:40,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2022-12-13 17:29:40,105 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:29:40,105 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:29:40,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:29:40,106 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:29:40,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:29:40,106 INFO L85 PathProgramCache]: Analyzing trace with hash -387159317, now seen corresponding path program 1 times [2022-12-13 17:29:40,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:29:40,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249364073] [2022-12-13 17:29:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:40,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:29:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:40,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 17:29:40,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:29:40,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249364073] [2022-12-13 17:29:40,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249364073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:29:40,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:29:40,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:29:40,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333273366] [2022-12-13 17:29:40,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:29:40,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:29:40,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:29:40,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:29:40,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:29:40,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 182 [2022-12-13 17:29:40,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 62 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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) [2022-12-13 17:29:40,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:29:40,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 182 [2022-12-13 17:29:40,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:29:40,690 INFO L130 PetriNetUnfolder]: 283/721 cut-off events. [2022-12-13 17:29:40,690 INFO L131 PetriNetUnfolder]: For 150/167 co-relation queries the response was YES. [2022-12-13 17:29:40,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1688 conditions, 721 events. 283/721 cut-off events. For 150/167 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4155 event pairs, 109 based on Foata normal form. 12/710 useless extension candidates. Maximal degree in co-relation 1657. Up to 414 conditions per place. [2022-12-13 17:29:40,697 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 87 selfloop transitions, 26 changer transitions 0/123 dead transitions. [2022-12-13 17:29:40,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 123 transitions, 626 flow [2022-12-13 17:29:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:29:40,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:29:40,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 577 transitions. [2022-12-13 17:29:40,700 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5283882783882784 [2022-12-13 17:29:40,700 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 577 transitions. [2022-12-13 17:29:40,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 577 transitions. [2022-12-13 17:29:40,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:29:40,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 577 transitions. [2022-12-13 17:29:40,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 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) [2022-12-13 17:29:40,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:40,703 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:40,704 INFO L175 Difference]: Start difference. First operand has 56 places, 62 transitions, 250 flow. Second operand 6 states and 577 transitions. [2022-12-13 17:29:40,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 123 transitions, 626 flow [2022-12-13 17:29:40,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 123 transitions, 626 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:29:40,707 INFO L231 Difference]: Finished difference. Result has 65 places, 84 transitions, 428 flow [2022-12-13 17:29:40,707 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=65, PETRI_TRANSITIONS=84} [2022-12-13 17:29:40,707 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 26 predicate places. [2022-12-13 17:29:40,707 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 84 transitions, 428 flow [2022-12-13 17:29:40,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 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) [2022-12-13 17:29:40,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:29:40,708 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:29:40,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:29:40,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:29:40,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:29:40,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1935386805, now seen corresponding path program 1 times [2022-12-13 17:29:40,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:29:40,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430271161] [2022-12-13 17:29:40,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:40,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:29:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:29:40,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:29:40,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430271161] [2022-12-13 17:29:40,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430271161] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:29:40,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655353904] [2022-12-13 17:29:40,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:40,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:29:40,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:29:40,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:29:40,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 17:29:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:40,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:29:40,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:29:40,892 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:29:40,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:29:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:29:40,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655353904] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 17:29:40,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 17:29:40,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-12-13 17:29:40,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360439653] [2022-12-13 17:29:40,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 17:29:40,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:29:40,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:29:40,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:29:40,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:29:40,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 182 [2022-12-13 17:29:40,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 84 transitions, 428 flow. Second operand has 13 states, 13 states have (on average 95.46153846153847) internal successors, (1241), 13 states have internal predecessors, (1241), 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) [2022-12-13 17:29:40,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:29:40,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 182 [2022-12-13 17:29:40,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:29:41,081 INFO L130 PetriNetUnfolder]: 136/507 cut-off events. [2022-12-13 17:29:41,081 INFO L131 PetriNetUnfolder]: For 190/201 co-relation queries the response was YES. [2022-12-13 17:29:41,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 507 events. 136/507 cut-off events. For 190/201 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3231 event pairs, 68 based on Foata normal form. 10/501 useless extension candidates. Maximal degree in co-relation 1214. Up to 229 conditions per place. [2022-12-13 17:29:41,085 INFO L137 encePairwiseOnDemand]: 179/182 looper letters, 27 selfloop transitions, 11 changer transitions 0/90 dead transitions. [2022-12-13 17:29:41,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 90 transitions, 540 flow [2022-12-13 17:29:41,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:29:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 17:29:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1160 transitions. [2022-12-13 17:29:41,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5311355311355311 [2022-12-13 17:29:41,088 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1160 transitions. [2022-12-13 17:29:41,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1160 transitions. [2022-12-13 17:29:41,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:29:41,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1160 transitions. [2022-12-13 17:29:41,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.66666666666667) internal successors, (1160), 12 states have internal predecessors, (1160), 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) [2022-12-13 17:29:41,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 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) [2022-12-13 17:29:41,096 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 182.0) internal successors, (2366), 13 states have internal predecessors, (2366), 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) [2022-12-13 17:29:41,096 INFO L175 Difference]: Start difference. First operand has 65 places, 84 transitions, 428 flow. Second operand 12 states and 1160 transitions. [2022-12-13 17:29:41,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 90 transitions, 540 flow [2022-12-13 17:29:41,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 90 transitions, 540 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:29:41,103 INFO L231 Difference]: Finished difference. Result has 82 places, 90 transitions, 512 flow [2022-12-13 17:29:41,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=512, PETRI_PLACES=82, PETRI_TRANSITIONS=90} [2022-12-13 17:29:41,104 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 43 predicate places. [2022-12-13 17:29:41,104 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 90 transitions, 512 flow [2022-12-13 17:29:41,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 95.46153846153847) internal successors, (1241), 13 states have internal predecessors, (1241), 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) [2022-12-13 17:29:41,105 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:29:41,105 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:29:41,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 17:29:41,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:29:41,305 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:29:41,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:29:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash -156793707, now seen corresponding path program 2 times [2022-12-13 17:29:41,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:29:41,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075267643] [2022-12-13 17:29:41,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:29:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:41,640 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:29:41,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:29:41,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075267643] [2022-12-13 17:29:41,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075267643] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:29:41,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:29:41,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:29:41,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870710042] [2022-12-13 17:29:41,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:29:41,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:29:41,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:29:41,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:29:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:29:41,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 182 [2022-12-13 17:29:41,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 90 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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) [2022-12-13 17:29:41,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:29:41,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 182 [2022-12-13 17:29:41,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:29:42,044 INFO L130 PetriNetUnfolder]: 501/1178 cut-off events. [2022-12-13 17:29:42,044 INFO L131 PetriNetUnfolder]: For 719/725 co-relation queries the response was YES. [2022-12-13 17:29:42,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3397 conditions, 1178 events. 501/1178 cut-off events. For 719/725 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6941 event pairs, 163 based on Foata normal form. 1/1126 useless extension candidates. Maximal degree in co-relation 3312. Up to 695 conditions per place. [2022-12-13 17:29:42,049 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 115 selfloop transitions, 59 changer transitions 2/184 dead transitions. [2022-12-13 17:29:42,050 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 184 transitions, 1265 flow [2022-12-13 17:29:42,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:29:42,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:29:42,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 558 transitions. [2022-12-13 17:29:42,051 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.510989010989011 [2022-12-13 17:29:42,051 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 558 transitions. [2022-12-13 17:29:42,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 558 transitions. [2022-12-13 17:29:42,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:29:42,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 558 transitions. [2022-12-13 17:29:42,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 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) [2022-12-13 17:29:42,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:42,054 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:42,054 INFO L175 Difference]: Start difference. First operand has 82 places, 90 transitions, 512 flow. Second operand 6 states and 558 transitions. [2022-12-13 17:29:42,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 184 transitions, 1265 flow [2022-12-13 17:29:42,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 184 transitions, 1217 flow, removed 19 selfloop flow, removed 5 redundant places. [2022-12-13 17:29:42,059 INFO L231 Difference]: Finished difference. Result has 86 places, 142 transitions, 982 flow [2022-12-13 17:29:42,059 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=982, PETRI_PLACES=86, PETRI_TRANSITIONS=142} [2022-12-13 17:29:42,060 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 47 predicate places. [2022-12-13 17:29:42,060 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 142 transitions, 982 flow [2022-12-13 17:29:42,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.83333333333333) internal successors, (473), 6 states have internal predecessors, (473), 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) [2022-12-13 17:29:42,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:29:42,061 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:29:42,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:29:42,061 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:29:42,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:29:42,061 INFO L85 PathProgramCache]: Analyzing trace with hash 217328679, now seen corresponding path program 1 times [2022-12-13 17:29:42,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:29:42,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961786480] [2022-12-13 17:29:42,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:42,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:29:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:29:42,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:29:42,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961786480] [2022-12-13 17:29:42,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961786480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:29:42,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:29:42,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:29:42,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766565927] [2022-12-13 17:29:42,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:29:42,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:29:42,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:29:42,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:29:42,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:29:42,457 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:29:42,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 142 transitions, 982 flow. Second operand has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2022-12-13 17:29:42,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:29:42,458 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:29:42,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:29:42,866 INFO L130 PetriNetUnfolder]: 704/1576 cut-off events. [2022-12-13 17:29:42,866 INFO L131 PetriNetUnfolder]: For 2209/2249 co-relation queries the response was YES. [2022-12-13 17:29:42,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5612 conditions, 1576 events. 704/1576 cut-off events. For 2209/2249 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 9626 event pairs, 177 based on Foata normal form. 3/1513 useless extension candidates. Maximal degree in co-relation 5547. Up to 979 conditions per place. [2022-12-13 17:29:42,879 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 155 selfloop transitions, 72 changer transitions 55/285 dead transitions. [2022-12-13 17:29:42,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 285 transitions, 2325 flow [2022-12-13 17:29:42,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:29:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:29:42,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 557 transitions. [2022-12-13 17:29:42,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.51007326007326 [2022-12-13 17:29:42,883 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 557 transitions. [2022-12-13 17:29:42,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 557 transitions. [2022-12-13 17:29:42,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:29:42,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 557 transitions. [2022-12-13 17:29:42,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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) [2022-12-13 17:29:42,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:42,888 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 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) [2022-12-13 17:29:42,888 INFO L175 Difference]: Start difference. First operand has 86 places, 142 transitions, 982 flow. Second operand 6 states and 557 transitions. [2022-12-13 17:29:42,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 285 transitions, 2325 flow [2022-12-13 17:29:42,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 285 transitions, 2257 flow, removed 34 selfloop flow, removed 0 redundant places. [2022-12-13 17:29:42,908 INFO L231 Difference]: Finished difference. Result has 95 places, 184 transitions, 1470 flow [2022-12-13 17:29:42,908 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1470, PETRI_PLACES=95, PETRI_TRANSITIONS=184} [2022-12-13 17:29:42,909 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 56 predicate places. [2022-12-13 17:29:42,909 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 184 transitions, 1470 flow [2022-12-13 17:29:42,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 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) [2022-12-13 17:29:42,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:29:42,910 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:29:42,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:29:42,910 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:29:42,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:29:42,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1573762417, now seen corresponding path program 1 times [2022-12-13 17:29:42,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:29:42,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620474431] [2022-12-13 17:29:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:42,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:29:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:29:48,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:29:48,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620474431] [2022-12-13 17:29:48,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620474431] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:29:48,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771271095] [2022-12-13 17:29:48,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:29:48,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:29:48,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:29:48,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:29:48,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 17:29:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:29:48,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-13 17:29:48,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:29:48,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 17:29:48,518 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 17:29:48,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2022-12-13 17:29:48,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 17:29:48,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 17:29:48,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 17:29:48,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,594 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:29:48,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:29:48,612 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:29:48,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:29:48,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,638 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:29:48,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 17:29:48,659 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:29:48,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 17:29:48,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:29:48,795 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:29:48,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 99 treesize of output 116 [2022-12-13 17:29:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 17:29:54,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:29:56,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 278 treesize of output 270 [2022-12-13 17:29:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:29:57,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771271095] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 17:29:57,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:29:57,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [18, 10] total 33 [2022-12-13 17:29:57,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101042960] [2022-12-13 17:29:57,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:29:57,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 17:29:57,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:29:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 17:29:57,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=946, Unknown=2, NotChecked=0, Total=1122 [2022-12-13 17:30:00,478 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:30:00,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 184 transitions, 1470 flow. Second operand has 13 states, 13 states have (on average 71.46153846153847) internal successors, (929), 13 states have internal predecessors, (929), 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) [2022-12-13 17:30:00,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:30:00,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:30:00,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:30:04,150 INFO L130 PetriNetUnfolder]: 1291/3046 cut-off events. [2022-12-13 17:30:04,150 INFO L131 PetriNetUnfolder]: For 6964/7058 co-relation queries the response was YES. [2022-12-13 17:30:04,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12877 conditions, 3046 events. 1291/3046 cut-off events. For 6964/7058 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 23126 event pairs, 228 based on Foata normal form. 21/3067 useless extension candidates. Maximal degree in co-relation 12807. Up to 1001 conditions per place. [2022-12-13 17:30:04,167 INFO L137 encePairwiseOnDemand]: 163/182 looper letters, 359 selfloop transitions, 104 changer transitions 73/543 dead transitions. [2022-12-13 17:30:04,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 543 transitions, 5189 flow [2022-12-13 17:30:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:30:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:30:04,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 947 transitions. [2022-12-13 17:30:04,171 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47302697302697305 [2022-12-13 17:30:04,171 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 947 transitions. [2022-12-13 17:30:04,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 947 transitions. [2022-12-13 17:30:04,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:30:04,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 947 transitions. [2022-12-13 17:30:04,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.0909090909091) internal successors, (947), 11 states have internal predecessors, (947), 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) [2022-12-13 17:30:04,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:30:04,175 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:30:04,175 INFO L175 Difference]: Start difference. First operand has 95 places, 184 transitions, 1470 flow. Second operand 11 states and 947 transitions. [2022-12-13 17:30:04,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 543 transitions, 5189 flow [2022-12-13 17:30:04,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 543 transitions, 5133 flow, removed 28 selfloop flow, removed 0 redundant places. [2022-12-13 17:30:04,205 INFO L231 Difference]: Finished difference. Result has 114 places, 275 transitions, 2738 flow [2022-12-13 17:30:04,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1442, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2738, PETRI_PLACES=114, PETRI_TRANSITIONS=275} [2022-12-13 17:30:04,206 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 75 predicate places. [2022-12-13 17:30:04,206 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 275 transitions, 2738 flow [2022-12-13 17:30:04,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 71.46153846153847) internal successors, (929), 13 states have internal predecessors, (929), 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) [2022-12-13 17:30:04,207 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:30:04,207 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:30:04,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 17:30:04,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:30:04,408 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:30:04,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:30:04,409 INFO L85 PathProgramCache]: Analyzing trace with hash -87413269, now seen corresponding path program 2 times [2022-12-13 17:30:04,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:30:04,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696606237] [2022-12-13 17:30:04,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:30:04,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:30:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:30:04,815 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:30:04,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:30:04,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696606237] [2022-12-13 17:30:04,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696606237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:30:04,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:30:04,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:30:04,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010420385] [2022-12-13 17:30:04,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:30:04,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:30:04,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:30:04,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:30:04,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:30:05,031 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:30:05,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 275 transitions, 2738 flow. Second operand has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 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) [2022-12-13 17:30:05,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:30:05,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:30:05,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:30:05,822 INFO L130 PetriNetUnfolder]: 1170/2851 cut-off events. [2022-12-13 17:30:05,822 INFO L131 PetriNetUnfolder]: For 10622/10707 co-relation queries the response was YES. [2022-12-13 17:30:05,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13842 conditions, 2851 events. 1170/2851 cut-off events. For 10622/10707 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 21950 event pairs, 209 based on Foata normal form. 57/2900 useless extension candidates. Maximal degree in co-relation 13763. Up to 897 conditions per place. [2022-12-13 17:30:05,845 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 308 selfloop transitions, 78 changer transitions 76/488 dead transitions. [2022-12-13 17:30:05,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 488 transitions, 5413 flow [2022-12-13 17:30:05,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:30:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:30:05,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 801 transitions. [2022-12-13 17:30:05,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.489010989010989 [2022-12-13 17:30:05,846 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 801 transitions. [2022-12-13 17:30:05,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 801 transitions. [2022-12-13 17:30:05,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:30:05,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 801 transitions. [2022-12-13 17:30:05,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 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) [2022-12-13 17:30:05,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:30:05,849 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:30:05,849 INFO L175 Difference]: Start difference. First operand has 114 places, 275 transitions, 2738 flow. Second operand 9 states and 801 transitions. [2022-12-13 17:30:05,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 488 transitions, 5413 flow [2022-12-13 17:30:05,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 488 transitions, 5395 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-12-13 17:30:05,901 INFO L231 Difference]: Finished difference. Result has 124 places, 279 transitions, 2976 flow [2022-12-13 17:30:05,901 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2720, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2976, PETRI_PLACES=124, PETRI_TRANSITIONS=279} [2022-12-13 17:30:05,901 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 85 predicate places. [2022-12-13 17:30:05,901 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 279 transitions, 2976 flow [2022-12-13 17:30:05,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 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) [2022-12-13 17:30:05,902 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:30:05,902 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:30:05,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:30:05,902 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:30:05,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:30:05,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1630372328, now seen corresponding path program 1 times [2022-12-13 17:30:05,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:30:05,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207018008] [2022-12-13 17:30:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:30:05,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:30:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:30:06,435 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:30:06,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:30:06,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207018008] [2022-12-13 17:30:06,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207018008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:30:06,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:30:06,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:30:06,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955719800] [2022-12-13 17:30:06,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:30:06,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:30:06,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:30:06,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:30:06,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:30:06,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:30:06,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 279 transitions, 2976 flow. Second operand has 9 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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) [2022-12-13 17:30:06,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:30:06,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:30:06,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:30:07,480 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([277] L943-6-->L943-8: Formula: (and (= (store |v_#memory_int_18| |v_~#a~0.base_43| (store (select |v_#memory_int_18| |v_~#a~0.base_43|) (+ |v_~#a~0.offset_42| (* |v_ULTIMATE.start_main_~i~2#1_26| 28)) (+ |v_ULTIMATE.start_main_#t~post41#1_7| 1))) |v_#memory_int_17|) (= |v_ULTIMATE.start_main_#t~mem40#1_7| |v_ULTIMATE.start_main_#t~post41#1_7|)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_7|, #memory_int=|v_#memory_int_18|, ~#a~0.base=|v_~#a~0.base_43|, ~#a~0.offset=|v_~#a~0.offset_42|, ULTIMATE.start_main_~i~2#1=|v_ULTIMATE.start_main_~i~2#1_26|} OutVars{ULTIMATE.start_main_#t~post41#1=|v_ULTIMATE.start_main_#t~post41#1_7|, ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_7|, #memory_int=|v_#memory_int_17|, ~#a~0.base=|v_~#a~0.base_43|, ~#a~0.offset=|v_~#a~0.offset_42|, ULTIMATE.start_main_~i~2#1=|v_ULTIMATE.start_main_~i~2#1_26|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post41#1, #memory_int][448], [Black: 184#(= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0), Black: 522#(or (not (= (* |ULTIMATE.start_main_~i~2#1| 28) (* |t_funThread1of1ForFork0_~i~0#1| 28))) (not (= (select (select |#pthreadsMutex| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 4 |~#a~0.offset|)) 0))), Black: 360#true, Black: 567#(and (forall ((v_ArrVal_367 Int) (v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (or (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (= (select (store (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (or (not (= (select (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (forall ((v_ArrVal_367 Int)) (= (select (store (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)))) (forall ((v_ArrVal_362 Int)) (or (not (= (select (store (store (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (forall ((v_ArrVal_367 Int)) (= (select (store (store (store (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) 0)) (not (= (select (store (store (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (not (= (select (store (store (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)))) (or (not (= (select (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (not (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (forall ((v_ArrVal_367 Int)) (= (select (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|)) 0)) (not (= (select (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)))), 338#true, Black: 563#(and (forall ((v_ArrVal_367 Int) (v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (or (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (= (select (store (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (or (not (= (select (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (forall ((v_ArrVal_367 Int)) (= (select (store (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0))))), Black: 195#(= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0), 349#true, Black: 196#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0)), Black: 197#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0)), 595#true, Black: 326#(< |ULTIMATE.start_main_~i~1#1| 7), Black: 322#(< |ULTIMATE.start_main_~i~1#1| 8), Black: 314#(< |ULTIMATE.start_main_~i~1#1| 10), Black: 210#(<= |ULTIMATE.start_main_~i~1#1| 4), Black: 586#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0) (not (= (* |ULTIMATE.start_main_~i~2#1| 28) (* |t_funThread1of1ForFork0_~i~0#1| 28)))), Black: 318#(< |ULTIMATE.start_main_~i~1#1| 9), Black: 585#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0) (not (= (* |ULTIMATE.start_main_~i~2#1| 28) (* |t_funThread1of1ForFork0_~i~0#1| 28)))), Black: 330#(< |ULTIMATE.start_main_~i~1#1| 6), Black: 340#(= |t_funThread1of1ForFork0_#t~nondet34#1| (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|))), Black: 343#(and (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) |t_funThread1of1ForFork0_#t~nondet34#1|) (= |t_funThread1of1ForFork0_#t~nondet34#1| (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|))) (= (select (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) |t_funThread1of1ForFork0_#t~nondet34#1|) (= (select (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) |t_funThread1of1ForFork0_#t~nondet34#1|)), Black: 341#(and (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) |t_funThread1of1ForFork0_#t~nondet34#1|) (= |t_funThread1of1ForFork0_#t~nondet34#1| (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)))), Black: 342#(and (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) |t_funThread1of1ForFork0_#t~nondet34#1|) (= |t_funThread1of1ForFork0_#t~nondet34#1| (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|))) (= (select (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) |t_funThread1of1ForFork0_#t~nondet34#1|)), 92#t_funEXITtrue, 204#true, Black: 353#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) |ULTIMATE.start_main_#t~nondet42#1|) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) |ULTIMATE.start_main_#t~nondet42#1|) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) |ULTIMATE.start_main_#t~nondet42#1|)), Black: 354#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) |ULTIMATE.start_main_#t~nondet42#1|) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) |ULTIMATE.start_main_#t~nondet42#1|) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) |ULTIMATE.start_main_#t~nondet42#1|) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|)) |ULTIMATE.start_main_#t~nondet42#1|)), Black: 351#(= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) |ULTIMATE.start_main_#t~nondet42#1|), 587#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0) (not (= (* |ULTIMATE.start_main_~i~2#1| 28) (* |t_funThread1of1ForFork0_~i~0#1| 28)))), Black: 352#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) |ULTIMATE.start_main_#t~nondet42#1|) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) |ULTIMATE.start_main_#t~nondet42#1|)), t_funThread1of1ForFork0InUse, Black: 108#(= |ULTIMATE.start_main_~i~1#1| 0), 182#true, Black: 177#(< |ULTIMATE.start_main_~i~1#1| 9), 474#(and (forall ((v_ArrVal_367 Int)) (= (select (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0)) (forall ((v_ArrVal_367 Int)) (= (select (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0)) (forall ((v_ArrVal_367 Int)) (= (select (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|)) 0)) (forall ((v_ArrVal_367 Int)) (= (select (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) 0))), Black: 114#(<= |ULTIMATE.start_main_~i~1#1| 1), Black: 173#(< |ULTIMATE.start_main_~i~1#1| 10), 64#L943-8true, 198#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0)), Black: 569#(and (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0) (or (not (= (* |ULTIMATE.start_main_~i~2#1| 28) (* |t_funThread1of1ForFork0_~i~0#1| 28))) (not (= (select (select |#pthreadsMutex| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 4 |~#a~0.offset|)) 0))) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0)), Black: 565#(and (forall ((v_ArrVal_367 Int) (v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (or (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (= (select (store (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0))) (forall ((v_ArrVal_362 Int) (v_ArrVal_359 Int)) (or (not (= (select (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (forall ((v_ArrVal_367 Int)) (= (select (store (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)))) (forall ((v_ArrVal_362 Int)) (or (not (= (select (store (store (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (forall ((v_ArrVal_367 Int)) (= (select (store (store (store (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|)) 0)) (not (= (select (store (store (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (not (= (select (store (store (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0))))), Black: 185#(and (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)), Black: 186#(and (= (select (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)), Black: 505#(forall ((v_ArrVal_367 Int) (v_ArrVal_354 Int) (v_ArrVal_362 Int) (v_ArrVal_359 Int)) (or (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)) (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (not (= (select (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0)) (= (select (store (store (store (store (store (store (store (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1) v_ArrVal_354) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset| 1) 0) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_359) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 2 |~#a~0.offset|) 0) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_362) (+ (* |ULTIMATE.start_main_~i~2#1| 28) 3 |~#a~0.offset|) 0) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|) v_ArrVal_367) (+ (* |ULTIMATE.start_main_~i~2#1| 28) |~#a~0.offset|)) 0))), Black: 187#(and (= (select (select |#race| |~#a~0.base|) (+ 3 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ 2 (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset|)) 0) (= (select (select |#race| |~#a~0.base|) (+ (* |t_funThread1of1ForFork0_~i~0#1| 28) |~#a~0.offset| 1)) 0)), Black: 509#(not (= (* |ULTIMATE.start_main_~i~2#1| 28) (* |t_funThread1of1ForFork0_~i~0#1| 28)))]) [2022-12-13 17:30:07,480 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is not cut-off event [2022-12-13 17:30:07,481 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is not cut-off event [2022-12-13 17:30:07,481 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is not cut-off event [2022-12-13 17:30:07,481 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is not cut-off event [2022-12-13 17:30:07,568 INFO L130 PetriNetUnfolder]: 1087/2732 cut-off events. [2022-12-13 17:30:07,568 INFO L131 PetriNetUnfolder]: For 12118/12198 co-relation queries the response was YES. [2022-12-13 17:30:07,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13822 conditions, 2732 events. 1087/2732 cut-off events. For 12118/12198 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 21299 event pairs, 146 based on Foata normal form. 39/2766 useless extension candidates. Maximal degree in co-relation 13739. Up to 823 conditions per place. [2022-12-13 17:30:07,583 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 294 selfloop transitions, 87 changer transitions 117/557 dead transitions. [2022-12-13 17:30:07,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 557 transitions, 6274 flow [2022-12-13 17:30:07,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:30:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 17:30:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1267 transitions. [2022-12-13 17:30:07,586 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4641025641025641 [2022-12-13 17:30:07,586 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1267 transitions. [2022-12-13 17:30:07,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1267 transitions. [2022-12-13 17:30:07,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:30:07,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1267 transitions. [2022-12-13 17:30:07,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 84.46666666666667) internal successors, (1267), 15 states have internal predecessors, (1267), 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) [2022-12-13 17:30:07,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 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) [2022-12-13 17:30:07,590 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 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) [2022-12-13 17:30:07,590 INFO L175 Difference]: Start difference. First operand has 124 places, 279 transitions, 2976 flow. Second operand 15 states and 1267 transitions. [2022-12-13 17:30:07,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 557 transitions, 6274 flow [2022-12-13 17:30:07,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 557 transitions, 6102 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-12-13 17:30:07,627 INFO L231 Difference]: Finished difference. Result has 146 places, 336 transitions, 3844 flow [2022-12-13 17:30:07,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2842, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3844, PETRI_PLACES=146, PETRI_TRANSITIONS=336} [2022-12-13 17:30:07,628 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 107 predicate places. [2022-12-13 17:30:07,628 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 336 transitions, 3844 flow [2022-12-13 17:30:07,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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) [2022-12-13 17:30:07,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:30:07,628 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:30:07,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:30:07,629 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:30:07,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:30:07,629 INFO L85 PathProgramCache]: Analyzing trace with hash 665463275, now seen corresponding path program 3 times [2022-12-13 17:30:07,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:30:07,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860381829] [2022-12-13 17:30:07,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:30:07,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:30:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:30:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:30:08,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:30:08,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860381829] [2022-12-13 17:30:08,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860381829] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:30:08,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:30:08,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:30:08,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287136301] [2022-12-13 17:30:08,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:30:08,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:30:08,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:30:08,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:30:08,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:30:08,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:30:08,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 336 transitions, 3844 flow. Second operand has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 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) [2022-12-13 17:30:08,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:30:08,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:30:08,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:30:09,215 INFO L130 PetriNetUnfolder]: 1128/2790 cut-off events. [2022-12-13 17:30:09,215 INFO L131 PetriNetUnfolder]: For 16175/16270 co-relation queries the response was YES. [2022-12-13 17:30:09,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15376 conditions, 2790 events. 1128/2790 cut-off events. For 16175/16270 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 21485 event pairs, 165 based on Foata normal form. 51/2834 useless extension candidates. Maximal degree in co-relation 15281. Up to 879 conditions per place. [2022-12-13 17:30:09,233 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 326 selfloop transitions, 97 changer transitions 102/568 dead transitions. [2022-12-13 17:30:09,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 568 transitions, 6998 flow [2022-12-13 17:30:09,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:30:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 17:30:09,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1275 transitions. [2022-12-13 17:30:09,236 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46703296703296704 [2022-12-13 17:30:09,236 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1275 transitions. [2022-12-13 17:30:09,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1275 transitions. [2022-12-13 17:30:09,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:30:09,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1275 transitions. [2022-12-13 17:30:09,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 85.0) internal successors, (1275), 15 states have internal predecessors, (1275), 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) [2022-12-13 17:30:09,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 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) [2022-12-13 17:30:09,240 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 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) [2022-12-13 17:30:09,241 INFO L175 Difference]: Start difference. First operand has 146 places, 336 transitions, 3844 flow. Second operand 15 states and 1275 transitions. [2022-12-13 17:30:09,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 568 transitions, 6998 flow [2022-12-13 17:30:09,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 568 transitions, 6922 flow, removed 28 selfloop flow, removed 5 redundant places. [2022-12-13 17:30:09,298 INFO L231 Difference]: Finished difference. Result has 162 places, 358 transitions, 4420 flow [2022-12-13 17:30:09,299 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3798, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4420, PETRI_PLACES=162, PETRI_TRANSITIONS=358} [2022-12-13 17:30:09,299 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 123 predicate places. [2022-12-13 17:30:09,299 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 358 transitions, 4420 flow [2022-12-13 17:30:09,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 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) [2022-12-13 17:30:09,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:30:09,300 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:30:09,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 17:30:09,300 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:30:09,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:30:09,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1161320213, now seen corresponding path program 4 times [2022-12-13 17:30:09,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:30:09,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509113672] [2022-12-13 17:30:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:30:09,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:30:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:30:09,880 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:30:09,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:30:09,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509113672] [2022-12-13 17:30:09,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509113672] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:30:09,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:30:09,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:30:09,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670624521] [2022-12-13 17:30:09,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:30:09,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:30:09,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:30:09,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:30:09,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:30:10,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:30:10,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 358 transitions, 4420 flow. Second operand has 10 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 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) [2022-12-13 17:30:10,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:30:10,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:30:10,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:30:11,069 INFO L130 PetriNetUnfolder]: 1127/2820 cut-off events. [2022-12-13 17:30:11,069 INFO L131 PetriNetUnfolder]: For 19576/19688 co-relation queries the response was YES. [2022-12-13 17:30:11,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16302 conditions, 2820 events. 1127/2820 cut-off events. For 19576/19688 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 21945 event pairs, 162 based on Foata normal form. 38/2852 useless extension candidates. Maximal degree in co-relation 16199. Up to 1396 conditions per place. [2022-12-13 17:30:11,086 INFO L137 encePairwiseOnDemand]: 166/182 looper letters, 245 selfloop transitions, 154 changer transitions 58/500 dead transitions. [2022-12-13 17:30:11,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 500 transitions, 6835 flow [2022-12-13 17:30:11,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:30:11,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:30:11,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 949 transitions. [2022-12-13 17:30:11,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.474025974025974 [2022-12-13 17:30:11,088 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 949 transitions. [2022-12-13 17:30:11,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 949 transitions. [2022-12-13 17:30:11,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:30:11,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 949 transitions. [2022-12-13 17:30:11,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.27272727272727) internal successors, (949), 11 states have internal predecessors, (949), 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) [2022-12-13 17:30:11,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:30:11,091 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:30:11,091 INFO L175 Difference]: Start difference. First operand has 162 places, 358 transitions, 4420 flow. Second operand 11 states and 949 transitions. [2022-12-13 17:30:11,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 500 transitions, 6835 flow [2022-12-13 17:30:11,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 500 transitions, 6677 flow, removed 70 selfloop flow, removed 5 redundant places. [2022-12-13 17:30:11,183 INFO L231 Difference]: Finished difference. Result has 166 places, 384 transitions, 5265 flow [2022-12-13 17:30:11,183 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=4321, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5265, PETRI_PLACES=166, PETRI_TRANSITIONS=384} [2022-12-13 17:30:11,183 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 127 predicate places. [2022-12-13 17:30:11,183 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 384 transitions, 5265 flow [2022-12-13 17:30:11,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 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) [2022-12-13 17:30:11,184 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:30:11,184 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:30:11,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:30:11,184 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:30:11,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:30:11,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1442408528, now seen corresponding path program 2 times [2022-12-13 17:30:11,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:30:11,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115791699] [2022-12-13 17:30:11,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:30:11,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:30:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:30:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:30:11,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:30:11,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115791699] [2022-12-13 17:30:11,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115791699] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:30:11,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:30:11,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:30:11,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415142314] [2022-12-13 17:30:11,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:30:11,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:30:11,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:30:11,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:30:11,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:30:11,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:30:11,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 384 transitions, 5265 flow. Second operand has 9 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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) [2022-12-13 17:30:11,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:30:11,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:30:11,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:30:12,735 INFO L130 PetriNetUnfolder]: 1115/2851 cut-off events. [2022-12-13 17:30:12,735 INFO L131 PetriNetUnfolder]: For 22949/23045 co-relation queries the response was YES. [2022-12-13 17:30:12,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16986 conditions, 2851 events. 1115/2851 cut-off events. For 22949/23045 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 22477 event pairs, 212 based on Foata normal form. 44/2882 useless extension candidates. Maximal degree in co-relation 16883. Up to 911 conditions per place. [2022-12-13 17:30:12,751 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 335 selfloop transitions, 91 changer transitions 50/552 dead transitions. [2022-12-13 17:30:12,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 552 transitions, 7720 flow [2022-12-13 17:30:12,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:30:12,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:30:12,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 785 transitions. [2022-12-13 17:30:12,752 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47924297924297926 [2022-12-13 17:30:12,753 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 785 transitions. [2022-12-13 17:30:12,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 785 transitions. [2022-12-13 17:30:12,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:30:12,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 785 transitions. [2022-12-13 17:30:12,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 87.22222222222223) internal successors, (785), 9 states have internal predecessors, (785), 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) [2022-12-13 17:30:12,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:30:12,755 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:30:12,755 INFO L175 Difference]: Start difference. First operand has 166 places, 384 transitions, 5265 flow. Second operand 9 states and 785 transitions. [2022-12-13 17:30:12,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 552 transitions, 7720 flow [2022-12-13 17:30:12,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 552 transitions, 7628 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-12-13 17:30:12,835 INFO L231 Difference]: Finished difference. Result has 173 places, 411 transitions, 5875 flow [2022-12-13 17:30:12,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5192, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5875, PETRI_PLACES=173, PETRI_TRANSITIONS=411} [2022-12-13 17:30:12,835 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 134 predicate places. [2022-12-13 17:30:12,836 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 411 transitions, 5875 flow [2022-12-13 17:30:12,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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) [2022-12-13 17:30:12,836 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:30:12,836 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:30:12,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:30:12,836 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:30:12,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:30:12,836 INFO L85 PathProgramCache]: Analyzing trace with hash 996876148, now seen corresponding path program 3 times [2022-12-13 17:30:12,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:30:12,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731326387] [2022-12-13 17:30:12,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:30:12,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:30:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:30:16,195 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:30:16,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:30:16,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731326387] [2022-12-13 17:30:16,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731326387] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:30:16,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970836555] [2022-12-13 17:30:16,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 17:30:16,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:30:16,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:30:16,196 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:30:16,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 17:30:16,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 17:30:16,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:30:16,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 45 conjunts are in the unsatisfiable core [2022-12-13 17:30:16,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:30:16,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 17:30:16,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 17:30:16,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 17:30:16,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:30:16,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 17:30:16,467 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 17:30:16,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2022-12-13 17:30:16,545 INFO L321 Elim1Store]: treesize reduction 127, result has 27.4 percent of original size [2022-12-13 17:30:16,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 71 [2022-12-13 17:30:16,582 INFO L321 Elim1Store]: treesize reduction 127, result has 27.4 percent of original size [2022-12-13 17:30:16,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 72 [2022-12-13 17:30:16,622 INFO L321 Elim1Store]: treesize reduction 127, result has 27.4 percent of original size [2022-12-13 17:30:16,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 72 [2022-12-13 17:30:16,661 INFO L321 Elim1Store]: treesize reduction 127, result has 27.4 percent of original size [2022-12-13 17:30:16,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 64 treesize of output 72 [2022-12-13 17:30:16,831 INFO L321 Elim1Store]: treesize reduction 289, result has 14.2 percent of original size [2022-12-13 17:30:16,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 99 treesize of output 116 [2022-12-13 17:30:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:30:28,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:30:28,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970836555] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:30:28,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:30:28,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 29 [2022-12-13 17:30:28,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150088780] [2022-12-13 17:30:28,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:30:28,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 17:30:28,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:30:28,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 17:30:28,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=759, Unknown=5, NotChecked=0, Total=870 [2022-12-13 17:30:30,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:33,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:35,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:37,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:39,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:41,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:43,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:45,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:47,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:49,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:49,708 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 182 [2022-12-13 17:30:49,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 411 transitions, 5875 flow. Second operand has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 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) [2022-12-13 17:30:49,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:30:49,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 182 [2022-12-13 17:30:49,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:30:53,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:55,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:57,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:30:59,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:31:04,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:31:06,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:31:08,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:31:10,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:31:12,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:31:14,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:31:16,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 17:31:17,382 INFO L130 PetriNetUnfolder]: 1468/3372 cut-off events. [2022-12-13 17:31:17,382 INFO L131 PetriNetUnfolder]: For 31024/31136 co-relation queries the response was YES. [2022-12-13 17:31:17,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20987 conditions, 3372 events. 1468/3372 cut-off events. For 31024/31136 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 25436 event pairs, 230 based on Foata normal form. 36/3400 useless extension candidates. Maximal degree in co-relation 20881. Up to 1981 conditions per place. [2022-12-13 17:31:17,401 INFO L137 encePairwiseOnDemand]: 165/182 looper letters, 322 selfloop transitions, 170 changer transitions 58/591 dead transitions. [2022-12-13 17:31:17,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 591 transitions, 9001 flow [2022-12-13 17:31:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:31:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 17:31:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 796 transitions. [2022-12-13 17:31:17,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43736263736263736 [2022-12-13 17:31:17,402 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 796 transitions. [2022-12-13 17:31:17,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 796 transitions. [2022-12-13 17:31:17,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:17,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 796 transitions. [2022-12-13 17:31:17,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.6) internal successors, (796), 10 states have internal predecessors, (796), 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) [2022-12-13 17:31:17,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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) [2022-12-13 17:31:17,405 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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) [2022-12-13 17:31:17,405 INFO L175 Difference]: Start difference. First operand has 173 places, 411 transitions, 5875 flow. Second operand 10 states and 796 transitions. [2022-12-13 17:31:17,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 591 transitions, 9001 flow [2022-12-13 17:31:17,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 591 transitions, 8853 flow, removed 69 selfloop flow, removed 1 redundant places. [2022-12-13 17:31:17,505 INFO L231 Difference]: Finished difference. Result has 186 places, 443 transitions, 6908 flow [2022-12-13 17:31:17,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=5785, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6908, PETRI_PLACES=186, PETRI_TRANSITIONS=443} [2022-12-13 17:31:17,506 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 147 predicate places. [2022-12-13 17:31:17,506 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 443 transitions, 6908 flow [2022-12-13 17:31:17,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 66.54545454545455) internal successors, (732), 11 states have internal predecessors, (732), 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) [2022-12-13 17:31:17,506 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:17,506 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:17,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 17:31:17,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 17:31:17,707 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash 767768013, now seen corresponding path program 5 times [2022-12-13 17:31:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:17,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129412208] [2022-12-13 17:31:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:18,191 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:18,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:18,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129412208] [2022-12-13 17:31:18,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129412208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:18,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:18,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:31:18,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314959994] [2022-12-13 17:31:18,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:18,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:18,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:18,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:18,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:31:18,499 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:31:18,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 443 transitions, 6908 flow. Second operand has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 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) [2022-12-13 17:31:18,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:18,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:31:18,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:19,486 INFO L130 PetriNetUnfolder]: 1296/3224 cut-off events. [2022-12-13 17:31:19,486 INFO L131 PetriNetUnfolder]: For 35617/35754 co-relation queries the response was YES. [2022-12-13 17:31:19,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21061 conditions, 3224 events. 1296/3224 cut-off events. For 35617/35754 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 25603 event pairs, 202 based on Foata normal form. 57/3265 useless extension candidates. Maximal degree in co-relation 20950. Up to 1479 conditions per place. [2022-12-13 17:31:19,507 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 310 selfloop transitions, 190 changer transitions 53/615 dead transitions. [2022-12-13 17:31:19,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 615 transitions, 10182 flow [2022-12-13 17:31:19,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:31:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 17:31:19,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1102 transitions. [2022-12-13 17:31:19,508 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4657650042265427 [2022-12-13 17:31:19,508 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1102 transitions. [2022-12-13 17:31:19,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1102 transitions. [2022-12-13 17:31:19,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:19,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1102 transitions. [2022-12-13 17:31:19,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.76923076923077) internal successors, (1102), 13 states have internal predecessors, (1102), 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) [2022-12-13 17:31:19,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 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) [2022-12-13 17:31:19,511 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 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) [2022-12-13 17:31:19,512 INFO L175 Difference]: Start difference. First operand has 186 places, 443 transitions, 6908 flow. Second operand 13 states and 1102 transitions. [2022-12-13 17:31:19,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 615 transitions, 10182 flow [2022-12-13 17:31:19,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 615 transitions, 10123 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-12-13 17:31:19,661 INFO L231 Difference]: Finished difference. Result has 205 places, 489 transitions, 8424 flow [2022-12-13 17:31:19,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=6874, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8424, PETRI_PLACES=205, PETRI_TRANSITIONS=489} [2022-12-13 17:31:19,662 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 166 predicate places. [2022-12-13 17:31:19,662 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 489 transitions, 8424 flow [2022-12-13 17:31:19,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 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) [2022-12-13 17:31:19,662 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:19,662 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:19,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:31:19,662 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:19,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:19,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1081421229, now seen corresponding path program 1 times [2022-12-13 17:31:19,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:19,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403979728] [2022-12-13 17:31:19,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:19,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:19,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:19,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403979728] [2022-12-13 17:31:19,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403979728] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:19,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:19,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:31:19,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624532065] [2022-12-13 17:31:19,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:19,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:19,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:19,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:19,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:31:20,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:31:20,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 489 transitions, 8424 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:20,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:20,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:31:20,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:21,588 INFO L130 PetriNetUnfolder]: 1696/3973 cut-off events. [2022-12-13 17:31:21,588 INFO L131 PetriNetUnfolder]: For 51065/51129 co-relation queries the response was YES. [2022-12-13 17:31:21,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27275 conditions, 3973 events. 1696/3973 cut-off events. For 51065/51129 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 31018 event pairs, 400 based on Foata normal form. 36/4009 useless extension candidates. Maximal degree in co-relation 27163. Up to 2021 conditions per place. [2022-12-13 17:31:21,614 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 418 selfloop transitions, 221 changer transitions 134/776 dead transitions. [2022-12-13 17:31:21,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 776 transitions, 13545 flow [2022-12-13 17:31:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:31:21,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:31:21,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1140 transitions. [2022-12-13 17:31:21,616 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4474097331240188 [2022-12-13 17:31:21,616 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1140 transitions. [2022-12-13 17:31:21,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1140 transitions. [2022-12-13 17:31:21,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:21,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1140 transitions. [2022-12-13 17:31:21,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 81.42857142857143) internal successors, (1140), 14 states have internal predecessors, (1140), 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) [2022-12-13 17:31:21,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 182.0) internal successors, (2730), 15 states have internal predecessors, (2730), 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) [2022-12-13 17:31:21,621 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 182.0) internal successors, (2730), 15 states have internal predecessors, (2730), 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) [2022-12-13 17:31:21,622 INFO L175 Difference]: Start difference. First operand has 205 places, 489 transitions, 8424 flow. Second operand 14 states and 1140 transitions. [2022-12-13 17:31:21,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 776 transitions, 13545 flow [2022-12-13 17:31:21,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 776 transitions, 13438 flow, removed 29 selfloop flow, removed 4 redundant places. [2022-12-13 17:31:21,814 INFO L231 Difference]: Finished difference. Result has 221 places, 533 transitions, 9682 flow [2022-12-13 17:31:21,815 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=8350, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=178, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9682, PETRI_PLACES=221, PETRI_TRANSITIONS=533} [2022-12-13 17:31:21,815 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 182 predicate places. [2022-12-13 17:31:21,815 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 533 transitions, 9682 flow [2022-12-13 17:31:21,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:21,815 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:21,815 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:21,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:31:21,816 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:21,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:21,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1837003528, now seen corresponding path program 4 times [2022-12-13 17:31:21,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:21,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818230106] [2022-12-13 17:31:21,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:21,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:22,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:22,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818230106] [2022-12-13 17:31:22,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818230106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:22,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:22,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:31:22,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894140711] [2022-12-13 17:31:22,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:22,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:22,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:22,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:22,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:31:22,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:31:22,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 533 transitions, 9682 flow. Second operand has 9 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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) [2022-12-13 17:31:22,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:22,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:31:22,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:23,963 INFO L130 PetriNetUnfolder]: 1591/4083 cut-off events. [2022-12-13 17:31:23,963 INFO L131 PetriNetUnfolder]: For 58251/58392 co-relation queries the response was YES. [2022-12-13 17:31:23,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28939 conditions, 4083 events. 1591/4083 cut-off events. For 58251/58392 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 34893 event pairs, 250 based on Foata normal form. 42/4103 useless extension candidates. Maximal degree in co-relation 28813. Up to 1432 conditions per place. [2022-12-13 17:31:23,990 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 380 selfloop transitions, 240 changer transitions 54/762 dead transitions. [2022-12-13 17:31:23,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 762 transitions, 14254 flow [2022-12-13 17:31:23,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:31:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:31:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 795 transitions. [2022-12-13 17:31:23,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48534798534798534 [2022-12-13 17:31:23,992 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 795 transitions. [2022-12-13 17:31:23,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 795 transitions. [2022-12-13 17:31:23,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:23,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 795 transitions. [2022-12-13 17:31:23,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 88.33333333333333) internal successors, (795), 9 states have internal predecessors, (795), 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) [2022-12-13 17:31:23,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:31:23,994 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:31:23,994 INFO L175 Difference]: Start difference. First operand has 221 places, 533 transitions, 9682 flow. Second operand 9 states and 795 transitions. [2022-12-13 17:31:23,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 762 transitions, 14254 flow [2022-12-13 17:31:24,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 762 transitions, 14171 flow, removed 15 selfloop flow, removed 4 redundant places. [2022-12-13 17:31:24,232 INFO L231 Difference]: Finished difference. Result has 227 places, 606 transitions, 11781 flow [2022-12-13 17:31:24,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=9636, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=11781, PETRI_PLACES=227, PETRI_TRANSITIONS=606} [2022-12-13 17:31:24,233 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 188 predicate places. [2022-12-13 17:31:24,233 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 606 transitions, 11781 flow [2022-12-13 17:31:24,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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) [2022-12-13 17:31:24,233 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:24,233 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:24,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:31:24,234 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:24,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:24,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1884986109, now seen corresponding path program 1 times [2022-12-13 17:31:24,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:24,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223592608] [2022-12-13 17:31:24,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:24,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:24,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:24,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223592608] [2022-12-13 17:31:24,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223592608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:24,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:24,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:31:24,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369187646] [2022-12-13 17:31:24,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:24,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:24,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:24,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:24,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:31:24,843 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:31:24,843 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 606 transitions, 11781 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:24,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:24,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:31:24,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:26,582 INFO L130 PetriNetUnfolder]: 1870/4525 cut-off events. [2022-12-13 17:31:26,582 INFO L131 PetriNetUnfolder]: For 74987/75051 co-relation queries the response was YES. [2022-12-13 17:31:26,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34256 conditions, 4525 events. 1870/4525 cut-off events. For 74987/75051 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 37501 event pairs, 415 based on Foata normal form. 16/4534 useless extension candidates. Maximal degree in co-relation 34127. Up to 1515 conditions per place. [2022-12-13 17:31:26,612 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 498 selfloop transitions, 259 changer transitions 108/894 dead transitions. [2022-12-13 17:31:26,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 894 transitions, 18342 flow [2022-12-13 17:31:26,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:31:26,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 17:31:26,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 832 transitions. [2022-12-13 17:31:26,630 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2022-12-13 17:31:26,630 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 832 transitions. [2022-12-13 17:31:26,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 832 transitions. [2022-12-13 17:31:26,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:26,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 832 transitions. [2022-12-13 17:31:26,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.2) internal successors, (832), 10 states have internal predecessors, (832), 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) [2022-12-13 17:31:26,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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) [2022-12-13 17:31:26,635 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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) [2022-12-13 17:31:26,635 INFO L175 Difference]: Start difference. First operand has 227 places, 606 transitions, 11781 flow. Second operand 10 states and 832 transitions. [2022-12-13 17:31:26,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 894 transitions, 18342 flow [2022-12-13 17:31:27,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 894 transitions, 18215 flow, removed 17 selfloop flow, removed 1 redundant places. [2022-12-13 17:31:27,082 INFO L231 Difference]: Finished difference. Result has 240 places, 640 transitions, 13187 flow [2022-12-13 17:31:27,083 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=11710, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13187, PETRI_PLACES=240, PETRI_TRANSITIONS=640} [2022-12-13 17:31:27,083 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 201 predicate places. [2022-12-13 17:31:27,083 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 640 transitions, 13187 flow [2022-12-13 17:31:27,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:27,084 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:27,084 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:27,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 17:31:27,084 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:27,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:27,084 INFO L85 PathProgramCache]: Analyzing trace with hash 411954943, now seen corresponding path program 2 times [2022-12-13 17:31:27,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:27,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575015642] [2022-12-13 17:31:27,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:27,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:27,515 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:27,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:27,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575015642] [2022-12-13 17:31:27,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575015642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:27,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:27,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:31:27,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731743912] [2022-12-13 17:31:27,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:27,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:27,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:27,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:27,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:31:27,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:31:27,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 640 transitions, 13187 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:27,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:27,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:31:27,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:29,856 INFO L130 PetriNetUnfolder]: 1768/4224 cut-off events. [2022-12-13 17:31:29,856 INFO L131 PetriNetUnfolder]: For 79110/79179 co-relation queries the response was YES. [2022-12-13 17:31:29,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34278 conditions, 4224 events. 1768/4224 cut-off events. For 79110/79179 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 33935 event pairs, 437 based on Foata normal form. 72/4293 useless extension candidates. Maximal degree in co-relation 34144. Up to 1820 conditions per place. [2022-12-13 17:31:29,907 INFO L137 encePairwiseOnDemand]: 166/182 looper letters, 570 selfloop transitions, 183 changer transitions 111/867 dead transitions. [2022-12-13 17:31:29,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 867 transitions, 18278 flow [2022-12-13 17:31:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:31:29,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:31:29,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1142 transitions. [2022-12-13 17:31:29,909 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44819466248037676 [2022-12-13 17:31:29,909 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1142 transitions. [2022-12-13 17:31:29,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1142 transitions. [2022-12-13 17:31:29,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:29,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1142 transitions. [2022-12-13 17:31:29,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 81.57142857142857) internal successors, (1142), 14 states have internal predecessors, (1142), 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) [2022-12-13 17:31:29,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 182.0) internal successors, (2730), 15 states have internal predecessors, (2730), 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) [2022-12-13 17:31:29,912 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 182.0) internal successors, (2730), 15 states have internal predecessors, (2730), 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) [2022-12-13 17:31:29,912 INFO L175 Difference]: Start difference. First operand has 240 places, 640 transitions, 13187 flow. Second operand 14 states and 1142 transitions. [2022-12-13 17:31:29,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 867 transitions, 18278 flow [2022-12-13 17:31:30,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 867 transitions, 18191 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 17:31:30,245 INFO L231 Difference]: Finished difference. Result has 259 places, 648 transitions, 13648 flow [2022-12-13 17:31:30,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=13111, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=13648, PETRI_PLACES=259, PETRI_TRANSITIONS=648} [2022-12-13 17:31:30,246 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 220 predicate places. [2022-12-13 17:31:30,246 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 648 transitions, 13648 flow [2022-12-13 17:31:30,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:30,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:30,246 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:30,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 17:31:30,246 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:30,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:30,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1462831363, now seen corresponding path program 2 times [2022-12-13 17:31:30,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:30,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299515860] [2022-12-13 17:31:30,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:30,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:32,546 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:31:32,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:32,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299515860] [2022-12-13 17:31:32,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299515860] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:31:32,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562619273] [2022-12-13 17:31:32,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 17:31:32,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:32,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:31:32,548 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:31:32,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 17:31:32,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 17:31:32,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:31:32,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 17:31:32,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:31:32,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 17:31:32,677 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 17:31:32,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2022-12-13 17:31:32,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 17:31:32,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 17:31:32,710 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:31:32,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:31:32,725 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:31:32,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 17:31:32,757 INFO L321 Elim1Store]: treesize reduction 127, result has 27.4 percent of original size [2022-12-13 17:31:32,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 71 [2022-12-13 17:31:32,764 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:32,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:31:32,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562619273] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:32,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:31:32,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 20 [2022-12-13 17:31:32,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595210663] [2022-12-13 17:31:32,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:32,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:32,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:32,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:32,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2022-12-13 17:31:33,069 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:31:33,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 648 transitions, 13648 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:33,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:33,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:31:33,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:35,049 INFO L130 PetriNetUnfolder]: 1612/3924 cut-off events. [2022-12-13 17:31:35,049 INFO L131 PetriNetUnfolder]: For 82956/82993 co-relation queries the response was YES. [2022-12-13 17:31:35,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33472 conditions, 3924 events. 1612/3924 cut-off events. For 82956/82993 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 31599 event pairs, 372 based on Foata normal form. 102/4017 useless extension candidates. Maximal degree in co-relation 33329. Up to 1759 conditions per place. [2022-12-13 17:31:35,078 INFO L137 encePairwiseOnDemand]: 169/182 looper letters, 380 selfloop transitions, 79 changer transitions 351/833 dead transitions. [2022-12-13 17:31:35,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 833 transitions, 18054 flow [2022-12-13 17:31:35,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 17:31:35,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-12-13 17:31:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1191 transitions. [2022-12-13 17:31:35,080 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43626373626373627 [2022-12-13 17:31:35,080 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1191 transitions. [2022-12-13 17:31:35,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1191 transitions. [2022-12-13 17:31:35,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:35,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1191 transitions. [2022-12-13 17:31:35,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.4) internal successors, (1191), 15 states have internal predecessors, (1191), 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) [2022-12-13 17:31:35,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 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) [2022-12-13 17:31:35,083 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 182.0) internal successors, (2912), 16 states have internal predecessors, (2912), 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) [2022-12-13 17:31:35,083 INFO L175 Difference]: Start difference. First operand has 259 places, 648 transitions, 13648 flow. Second operand 15 states and 1191 transitions. [2022-12-13 17:31:35,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 833 transitions, 18054 flow [2022-12-13 17:31:35,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 833 transitions, 17846 flow, removed 79 selfloop flow, removed 5 redundant places. [2022-12-13 17:31:35,479 INFO L231 Difference]: Finished difference. Result has 275 places, 442 transitions, 9085 flow [2022-12-13 17:31:35,479 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=13530, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=648, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9085, PETRI_PLACES=275, PETRI_TRANSITIONS=442} [2022-12-13 17:31:35,479 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 236 predicate places. [2022-12-13 17:31:35,479 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 442 transitions, 9085 flow [2022-12-13 17:31:35,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:35,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:35,480 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:35,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 17:31:35,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:35,681 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:35,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:35,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1935236799, now seen corresponding path program 3 times [2022-12-13 17:31:35,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:35,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129075596] [2022-12-13 17:31:35,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:35,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:35,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:31:39,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:39,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129075596] [2022-12-13 17:31:39,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129075596] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:31:39,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202934217] [2022-12-13 17:31:39,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 17:31:39,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:39,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:31:39,281 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:31:39,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 17:31:39,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 17:31:39,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:31:39,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 17:31:39,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:31:39,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 17:31:39,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 17:31:39,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 17:31:39,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:31:39,506 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 17:31:39,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2022-12-13 17:31:39,523 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:31:39,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 17:31:39,559 INFO L321 Elim1Store]: treesize reduction 127, result has 27.4 percent of original size [2022-12-13 17:31:39,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 71 [2022-12-13 17:31:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:39,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:31:39,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202934217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:39,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:31:39,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18] total 23 [2022-12-13 17:31:39,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546595623] [2022-12-13 17:31:39,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:39,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:39,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:39,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:39,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2022-12-13 17:31:39,895 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:31:39,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 442 transitions, 9085 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:39,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:39,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:31:39,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:41,404 INFO L130 PetriNetUnfolder]: 1059/2640 cut-off events. [2022-12-13 17:31:41,404 INFO L131 PetriNetUnfolder]: For 59309/59342 co-relation queries the response was YES. [2022-12-13 17:31:41,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23234 conditions, 2640 events. 1059/2640 cut-off events. For 59309/59342 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 19678 event pairs, 280 based on Foata normal form. 23/2660 useless extension candidates. Maximal degree in co-relation 23116. Up to 1487 conditions per place. [2022-12-13 17:31:41,440 INFO L137 encePairwiseOnDemand]: 164/182 looper letters, 288 selfloop transitions, 204 changer transitions 50/565 dead transitions. [2022-12-13 17:31:41,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 565 transitions, 12143 flow [2022-12-13 17:31:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:31:41,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 17:31:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 848 transitions. [2022-12-13 17:31:41,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46593406593406594 [2022-12-13 17:31:41,443 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 848 transitions. [2022-12-13 17:31:41,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 848 transitions. [2022-12-13 17:31:41,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:41,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 848 transitions. [2022-12-13 17:31:41,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 84.8) internal successors, (848), 10 states have internal predecessors, (848), 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) [2022-12-13 17:31:41,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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) [2022-12-13 17:31:41,447 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 182.0) internal successors, (2002), 11 states have internal predecessors, (2002), 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) [2022-12-13 17:31:41,447 INFO L175 Difference]: Start difference. First operand has 275 places, 442 transitions, 9085 flow. Second operand 10 states and 848 transitions. [2022-12-13 17:31:41,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 565 transitions, 12143 flow [2022-12-13 17:31:41,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 565 transitions, 10941 flow, removed 152 selfloop flow, removed 33 redundant places. [2022-12-13 17:31:41,810 INFO L231 Difference]: Finished difference. Result has 239 places, 454 transitions, 9039 flow [2022-12-13 17:31:41,810 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=8181, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9039, PETRI_PLACES=239, PETRI_TRANSITIONS=454} [2022-12-13 17:31:41,810 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 200 predicate places. [2022-12-13 17:31:41,811 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 454 transitions, 9039 flow [2022-12-13 17:31:41,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:41,811 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:41,811 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:41,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 17:31:42,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:42,013 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:42,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:42,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1706617981, now seen corresponding path program 4 times [2022-12-13 17:31:42,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:42,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691014672] [2022-12-13 17:31:42,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:42,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:31:45,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:45,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691014672] [2022-12-13 17:31:45,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691014672] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:31:45,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372820507] [2022-12-13 17:31:45,242 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 17:31:45,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:45,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:31:45,243 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:31:45,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 17:31:45,352 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 17:31:45,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:31:45,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 53 conjunts are in the unsatisfiable core [2022-12-13 17:31:45,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:31:45,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 17:31:45,516 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 17:31:45,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2022-12-13 17:31:45,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 17:31:45,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 17:31:45,548 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:31:45,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:31:45,558 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:31:45,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 17:31:45,595 INFO L321 Elim1Store]: treesize reduction 127, result has 27.4 percent of original size [2022-12-13 17:31:45,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 71 [2022-12-13 17:31:45,601 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 17:31:45,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:31:45,739 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:45,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372820507] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 17:31:45,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:31:45,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19, 17] total 31 [2022-12-13 17:31:45,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323517258] [2022-12-13 17:31:45,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:45,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:45,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:45,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:45,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=888, Unknown=0, NotChecked=0, Total=992 [2022-12-13 17:31:45,902 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:31:45,902 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 454 transitions, 9039 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:45,902 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:45,902 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:31:45,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:47,041 INFO L130 PetriNetUnfolder]: 982/2464 cut-off events. [2022-12-13 17:31:47,041 INFO L131 PetriNetUnfolder]: For 49132/49156 co-relation queries the response was YES. [2022-12-13 17:31:47,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20256 conditions, 2464 events. 982/2464 cut-off events. For 49132/49156 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 18155 event pairs, 241 based on Foata normal form. 68/2528 useless extension candidates. Maximal degree in co-relation 20128. Up to 1256 conditions per place. [2022-12-13 17:31:47,058 INFO L137 encePairwiseOnDemand]: 169/182 looper letters, 354 selfloop transitions, 129 changer transitions 81/587 dead transitions. [2022-12-13 17:31:47,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 587 transitions, 12032 flow [2022-12-13 17:31:47,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:31:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:31:47,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 751 transitions. [2022-12-13 17:31:47,059 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45848595848595847 [2022-12-13 17:31:47,059 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 751 transitions. [2022-12-13 17:31:47,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 751 transitions. [2022-12-13 17:31:47,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:47,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 751 transitions. [2022-12-13 17:31:47,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.44444444444444) internal successors, (751), 9 states have internal predecessors, (751), 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) [2022-12-13 17:31:47,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:31:47,061 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:31:47,061 INFO L175 Difference]: Start difference. First operand has 239 places, 454 transitions, 9039 flow. Second operand 9 states and 751 transitions. [2022-12-13 17:31:47,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 587 transitions, 12032 flow [2022-12-13 17:31:47,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 587 transitions, 11920 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 17:31:47,343 INFO L231 Difference]: Finished difference. Result has 248 places, 431 transitions, 8779 flow [2022-12-13 17:31:47,344 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=8937, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8779, PETRI_PLACES=248, PETRI_TRANSITIONS=431} [2022-12-13 17:31:47,344 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 209 predicate places. [2022-12-13 17:31:47,344 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 431 transitions, 8779 flow [2022-12-13 17:31:47,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:47,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:47,344 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:47,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 17:31:47,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:47,546 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:47,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:47,547 INFO L85 PathProgramCache]: Analyzing trace with hash -773359747, now seen corresponding path program 5 times [2022-12-13 17:31:47,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:47,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984983307] [2022-12-13 17:31:47,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:47,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:47,948 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:47,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:47,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984983307] [2022-12-13 17:31:47,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984983307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:47,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:47,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:31:47,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757034203] [2022-12-13 17:31:47,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:47,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:47,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:47,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:47,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:31:48,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:31:48,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 431 transitions, 8779 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:48,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:48,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:31:48,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:49,268 INFO L130 PetriNetUnfolder]: 883/2317 cut-off events. [2022-12-13 17:31:49,268 INFO L131 PetriNetUnfolder]: For 51279/51309 co-relation queries the response was YES. [2022-12-13 17:31:49,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19572 conditions, 2317 events. 883/2317 cut-off events. For 51279/51309 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 17231 event pairs, 256 based on Foata normal form. 30/2344 useless extension candidates. Maximal degree in co-relation 19440. Up to 975 conditions per place. [2022-12-13 17:31:49,286 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 310 selfloop transitions, 164 changer transitions 53/550 dead transitions. [2022-12-13 17:31:49,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 550 transitions, 11405 flow [2022-12-13 17:31:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:31:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:31:49,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 758 transitions. [2022-12-13 17:31:49,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4627594627594628 [2022-12-13 17:31:49,288 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 758 transitions. [2022-12-13 17:31:49,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 758 transitions. [2022-12-13 17:31:49,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:49,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 758 transitions. [2022-12-13 17:31:49,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 84.22222222222223) internal successors, (758), 9 states have internal predecessors, (758), 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) [2022-12-13 17:31:49,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:31:49,290 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:31:49,290 INFO L175 Difference]: Start difference. First operand has 248 places, 431 transitions, 8779 flow. Second operand 9 states and 758 transitions. [2022-12-13 17:31:49,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 550 transitions, 11405 flow [2022-12-13 17:31:49,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 550 transitions, 11141 flow, removed 59 selfloop flow, removed 4 redundant places. [2022-12-13 17:31:49,520 INFO L231 Difference]: Finished difference. Result has 257 places, 430 transitions, 8943 flow [2022-12-13 17:31:49,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=8526, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8943, PETRI_PLACES=257, PETRI_TRANSITIONS=430} [2022-12-13 17:31:49,520 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 218 predicate places. [2022-12-13 17:31:49,521 INFO L495 AbstractCegarLoop]: Abstraction has has 257 places, 430 transitions, 8943 flow [2022-12-13 17:31:49,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:49,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:49,521 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:49,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 17:31:49,521 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:49,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:49,521 INFO L85 PathProgramCache]: Analyzing trace with hash 488332589, now seen corresponding path program 3 times [2022-12-13 17:31:49,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:49,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615011720] [2022-12-13 17:31:49,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:49,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:31:53,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:53,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615011720] [2022-12-13 17:31:53,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615011720] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:31:53,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43465836] [2022-12-13 17:31:53,930 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 17:31:53,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:31:53,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:31:53,931 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:31:53,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 17:31:54,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 17:31:54,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:31:54,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-13 17:31:54,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:31:54,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 17:31:54,058 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 17:31:54,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2022-12-13 17:31:54,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 17:31:54,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 17:31:54,084 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:31:54,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:31:54,096 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:31:54,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 17:31:54,132 INFO L321 Elim1Store]: treesize reduction 127, result has 27.4 percent of original size [2022-12-13 17:31:54,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 71 [2022-12-13 17:31:54,138 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:54,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:31:54,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43465836] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:54,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:31:54,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 21 [2022-12-13 17:31:54,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141571806] [2022-12-13 17:31:54,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:54,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:54,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:54,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:54,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2022-12-13 17:31:54,498 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:31:54,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 430 transitions, 8943 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:54,499 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:54,499 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:31:54,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:55,567 INFO L130 PetriNetUnfolder]: 892/2243 cut-off events. [2022-12-13 17:31:55,567 INFO L131 PetriNetUnfolder]: For 52924/52948 co-relation queries the response was YES. [2022-12-13 17:31:55,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19589 conditions, 2243 events. 892/2243 cut-off events. For 52924/52948 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 16126 event pairs, 195 based on Foata normal form. 100/2342 useless extension candidates. Maximal degree in co-relation 19453. Up to 857 conditions per place. [2022-12-13 17:31:55,583 INFO L137 encePairwiseOnDemand]: 172/182 looper letters, 178 selfloop transitions, 39 changer transitions 395/615 dead transitions. [2022-12-13 17:31:55,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 615 transitions, 13618 flow [2022-12-13 17:31:55,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:31:55,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 17:31:55,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1108 transitions. [2022-12-13 17:31:55,586 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.434850863422292 [2022-12-13 17:31:55,586 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1108 transitions. [2022-12-13 17:31:55,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1108 transitions. [2022-12-13 17:31:55,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:55,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1108 transitions. [2022-12-13 17:31:55,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.14285714285714) internal successors, (1108), 14 states have internal predecessors, (1108), 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) [2022-12-13 17:31:55,589 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 182.0) internal successors, (2730), 15 states have internal predecessors, (2730), 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) [2022-12-13 17:31:55,589 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 182.0) internal successors, (2730), 15 states have internal predecessors, (2730), 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) [2022-12-13 17:31:55,589 INFO L175 Difference]: Start difference. First operand has 257 places, 430 transitions, 8943 flow. Second operand 14 states and 1108 transitions. [2022-12-13 17:31:55,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 615 transitions, 13618 flow [2022-12-13 17:31:55,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 615 transitions, 13271 flow, removed 33 selfloop flow, removed 4 redundant places. [2022-12-13 17:31:55,837 INFO L231 Difference]: Finished difference. Result has 275 places, 192 transitions, 3447 flow [2022-12-13 17:31:55,838 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=8690, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3447, PETRI_PLACES=275, PETRI_TRANSITIONS=192} [2022-12-13 17:31:55,838 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 236 predicate places. [2022-12-13 17:31:55,838 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 192 transitions, 3447 flow [2022-12-13 17:31:55,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:31:55,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:55,838 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:55,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 17:31:56,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-13 17:31:56,039 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:56,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:56,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1977883785, now seen corresponding path program 6 times [2022-12-13 17:31:56,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:56,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097281195] [2022-12-13 17:31:56,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:56,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:31:56,520 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:31:56,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:31:56,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097281195] [2022-12-13 17:31:56,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097281195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:31:56,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:31:56,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:31:56,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273672591] [2022-12-13 17:31:56,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:31:56,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:31:56,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:31:56,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:31:56,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:31:56,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:31:56,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 192 transitions, 3447 flow. Second operand has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 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) [2022-12-13 17:31:56,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:31:56,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:31:56,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:31:57,336 INFO L130 PetriNetUnfolder]: 220/684 cut-off events. [2022-12-13 17:31:57,337 INFO L131 PetriNetUnfolder]: For 14915/14927 co-relation queries the response was YES. [2022-12-13 17:31:57,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6080 conditions, 684 events. 220/684 cut-off events. For 14915/14927 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3853 event pairs, 37 based on Foata normal form. 17/696 useless extension candidates. Maximal degree in co-relation 5968. Up to 296 conditions per place. [2022-12-13 17:31:57,342 INFO L137 encePairwiseOnDemand]: 167/182 looper letters, 121 selfloop transitions, 62 changer transitions 30/248 dead transitions. [2022-12-13 17:31:57,342 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 248 transitions, 4681 flow [2022-12-13 17:31:57,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:31:57,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:31:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 935 transitions. [2022-12-13 17:31:57,344 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46703296703296704 [2022-12-13 17:31:57,344 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 935 transitions. [2022-12-13 17:31:57,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 935 transitions. [2022-12-13 17:31:57,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:31:57,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 935 transitions. [2022-12-13 17:31:57,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 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) [2022-12-13 17:31:57,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:31:57,346 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:31:57,346 INFO L175 Difference]: Start difference. First operand has 275 places, 192 transitions, 3447 flow. Second operand 11 states and 935 transitions. [2022-12-13 17:31:57,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 248 transitions, 4681 flow [2022-12-13 17:31:57,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 248 transitions, 3466 flow, removed 196 selfloop flow, removed 57 redundant places. [2022-12-13 17:31:57,403 INFO L231 Difference]: Finished difference. Result has 203 places, 192 transitions, 2580 flow [2022-12-13 17:31:57,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2429, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2580, PETRI_PLACES=203, PETRI_TRANSITIONS=192} [2022-12-13 17:31:57,403 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 164 predicate places. [2022-12-13 17:31:57,403 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 192 transitions, 2580 flow [2022-12-13 17:31:57,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.77777777777777) internal successors, (691), 9 states have internal predecessors, (691), 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) [2022-12-13 17:31:57,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:31:57,403 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:31:57,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 17:31:57,404 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:31:57,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:31:57,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2046073407, now seen corresponding path program 6 times [2022-12-13 17:31:57,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:31:57,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771985786] [2022-12-13 17:31:57,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:31:57,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:31:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:32:00,401 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:32:00,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:32:00,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771985786] [2022-12-13 17:32:00,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771985786] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:32:00,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851410175] [2022-12-13 17:32:00,402 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 17:32:00,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:32:00,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:32:00,403 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:32:00,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 17:32:00,514 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-12-13 17:32:00,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:32:00,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-13 17:32:00,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:32:00,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 17:32:00,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 17:32:00,574 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 17:32:00,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2022-12-13 17:32:00,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 17:32:00,604 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:32:00,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:32:00,613 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 17:32:00,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-12-13 17:32:00,645 INFO L321 Elim1Store]: treesize reduction 127, result has 27.4 percent of original size [2022-12-13 17:32:00,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 63 treesize of output 71 [2022-12-13 17:32:00,651 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:32:00,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:32:00,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851410175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:32:00,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:32:00,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 22 [2022-12-13 17:32:00,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587868606] [2022-12-13 17:32:00,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:32:00,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:32:00,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:32:00,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:32:00,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2022-12-13 17:32:00,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:32:00,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 192 transitions, 2580 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:32:00,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:32:00,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:32:00,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:32:01,410 INFO L130 PetriNetUnfolder]: 215/632 cut-off events. [2022-12-13 17:32:01,410 INFO L131 PetriNetUnfolder]: For 7167/7182 co-relation queries the response was YES. [2022-12-13 17:32:01,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4738 conditions, 632 events. 215/632 cut-off events. For 7167/7182 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3280 event pairs, 51 based on Foata normal form. 35/666 useless extension candidates. Maximal degree in co-relation 4625. Up to 280 conditions per place. [2022-12-13 17:32:01,414 INFO L137 encePairwiseOnDemand]: 168/182 looper letters, 116 selfloop transitions, 26 changer transitions 116/266 dead transitions. [2022-12-13 17:32:01,414 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 266 transitions, 4032 flow [2022-12-13 17:32:01,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:32:01,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:32:01,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 738 transitions. [2022-12-13 17:32:01,415 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45054945054945056 [2022-12-13 17:32:01,415 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 738 transitions. [2022-12-13 17:32:01,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 738 transitions. [2022-12-13 17:32:01,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:32:01,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 738 transitions. [2022-12-13 17:32:01,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 82.0) internal successors, (738), 9 states have internal predecessors, (738), 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) [2022-12-13 17:32:01,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:32:01,417 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:32:01,417 INFO L175 Difference]: Start difference. First operand has 203 places, 192 transitions, 2580 flow. Second operand 9 states and 738 transitions. [2022-12-13 17:32:01,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 266 transitions, 4032 flow [2022-12-13 17:32:01,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 266 transitions, 3645 flow, removed 63 selfloop flow, removed 18 redundant places. [2022-12-13 17:32:01,446 INFO L231 Difference]: Finished difference. Result has 188 places, 136 transitions, 1598 flow [2022-12-13 17:32:01,446 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=2321, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1598, PETRI_PLACES=188, PETRI_TRANSITIONS=136} [2022-12-13 17:32:01,447 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 149 predicate places. [2022-12-13 17:32:01,447 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 136 transitions, 1598 flow [2022-12-13 17:32:01,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:32:01,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:32:01,447 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:32:01,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 17:32:01,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:32:01,648 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:32:01,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:32:01,649 INFO L85 PathProgramCache]: Analyzing trace with hash 997906194, now seen corresponding path program 5 times [2022-12-13 17:32:01,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:32:01,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298738664] [2022-12-13 17:32:01,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:32:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:32:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:33:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:33:50,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:33:50,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298738664] [2022-12-13 17:33:50,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298738664] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:33:50,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355535266] [2022-12-13 17:33:50,174 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 17:33:50,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:33:50,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:33:50,175 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:33:50,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 17:33:50,328 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-12-13 17:33:50,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 17:33:50,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 65 conjunts are in the unsatisfiable core [2022-12-13 17:33:50,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:33:50,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-13 17:33:50,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-13 17:33:50,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-12-13 17:33:50,444 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-13 17:33:50,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 15 [2022-12-13 17:33:50,490 INFO L321 Elim1Store]: treesize reduction 61, result has 28.2 percent of original size [2022-12-13 17:33:50,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 41 [2022-12-13 17:33:50,509 INFO L321 Elim1Store]: treesize reduction 61, result has 28.2 percent of original size [2022-12-13 17:33:50,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:33:50,526 INFO L321 Elim1Store]: treesize reduction 65, result has 27.0 percent of original size [2022-12-13 17:33:50,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:33:50,549 INFO L321 Elim1Store]: treesize reduction 65, result has 27.0 percent of original size [2022-12-13 17:33:50,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 42 [2022-12-13 17:33:50,648 INFO L321 Elim1Store]: treesize reduction 177, result has 17.3 percent of original size [2022-12-13 17:33:50,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 76 treesize of output 87 [2022-12-13 17:33:50,737 INFO L321 Elim1Store]: treesize reduction 217, result has 14.6 percent of original size [2022-12-13 17:33:50,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 88 treesize of output 102 [2022-12-13 17:33:50,883 INFO L321 Elim1Store]: treesize reduction 289, result has 14.2 percent of original size [2022-12-13 17:33:50,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 99 treesize of output 116 [2022-12-13 17:33:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 17:33:56,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:33:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:33:57,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355535266] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 17:33:57,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:33:57,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19, 18] total 35 [2022-12-13 17:33:57,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129273140] [2022-12-13 17:33:57,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:33:57,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 17:33:57,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:33:57,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 17:33:57,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1072, Unknown=2, NotChecked=0, Total=1260 [2022-12-13 17:33:58,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 182 [2022-12-13 17:33:58,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 136 transitions, 1598 flow. Second operand has 11 states, 11 states have (on average 72.63636363636364) internal successors, (799), 11 states have internal predecessors, (799), 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) [2022-12-13 17:33:58,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:33:58,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 182 [2022-12-13 17:33:58,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:00,756 INFO L130 PetriNetUnfolder]: 171/504 cut-off events. [2022-12-13 17:34:00,756 INFO L131 PetriNetUnfolder]: For 4548/4559 co-relation queries the response was YES. [2022-12-13 17:34:00,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3405 conditions, 504 events. 171/504 cut-off events. For 4548/4559 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2463 event pairs, 34 based on Foata normal form. 20/521 useless extension candidates. Maximal degree in co-relation 3301. Up to 200 conditions per place. [2022-12-13 17:34:00,759 INFO L137 encePairwiseOnDemand]: 169/182 looper letters, 110 selfloop transitions, 32 changer transitions 58/209 dead transitions. [2022-12-13 17:34:00,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 209 transitions, 2770 flow [2022-12-13 17:34:00,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:34:00,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:34:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 730 transitions. [2022-12-13 17:34:00,761 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4456654456654457 [2022-12-13 17:34:00,761 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 730 transitions. [2022-12-13 17:34:00,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 730 transitions. [2022-12-13 17:34:00,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:00,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 730 transitions. [2022-12-13 17:34:00,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 81.11111111111111) internal successors, (730), 9 states have internal predecessors, (730), 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) [2022-12-13 17:34:00,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:34:00,764 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:34:00,765 INFO L175 Difference]: Start difference. First operand has 188 places, 136 transitions, 1598 flow. Second operand 9 states and 730 transitions. [2022-12-13 17:34:00,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 209 transitions, 2770 flow [2022-12-13 17:34:00,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 209 transitions, 2421 flow, removed 27 selfloop flow, removed 30 redundant places. [2022-12-13 17:34:00,787 INFO L231 Difference]: Finished difference. Result has 164 places, 134 transitions, 1383 flow [2022-12-13 17:34:00,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1323, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1383, PETRI_PLACES=164, PETRI_TRANSITIONS=134} [2022-12-13 17:34:00,787 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 125 predicate places. [2022-12-13 17:34:00,787 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 134 transitions, 1383 flow [2022-12-13 17:34:00,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.63636363636364) internal successors, (799), 11 states have internal predecessors, (799), 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) [2022-12-13 17:34:00,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:00,788 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:34:00,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 17:34:00,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 17:34:00,989 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:34:00,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:00,990 INFO L85 PathProgramCache]: Analyzing trace with hash 428308644, now seen corresponding path program 6 times [2022-12-13 17:34:00,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:00,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799987231] [2022-12-13 17:34:00,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:00,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:34:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:34:01,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:34:01,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799987231] [2022-12-13 17:34:01,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799987231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:34:01,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:34:01,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:34:01,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301221195] [2022-12-13 17:34:01,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:34:01,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:34:01,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:34:01,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:34:01,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:34:01,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:34:01,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 134 transitions, 1383 flow. Second operand has 9 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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) [2022-12-13 17:34:01,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:34:01,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:34:01,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:01,859 INFO L130 PetriNetUnfolder]: 115/367 cut-off events. [2022-12-13 17:34:01,859 INFO L131 PetriNetUnfolder]: For 2306/2312 co-relation queries the response was YES. [2022-12-13 17:34:01,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2261 conditions, 367 events. 115/367 cut-off events. For 2306/2312 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1640 event pairs, 22 based on Foata normal form. 19/379 useless extension candidates. Maximal degree in co-relation 2203. Up to 124 conditions per place. [2022-12-13 17:34:01,860 INFO L137 encePairwiseOnDemand]: 170/182 looper letters, 52 selfloop transitions, 22 changer transitions 85/172 dead transitions. [2022-12-13 17:34:01,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 172 transitions, 2010 flow [2022-12-13 17:34:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:34:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:34:01,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 748 transitions. [2022-12-13 17:34:01,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45665445665445664 [2022-12-13 17:34:01,862 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 748 transitions. [2022-12-13 17:34:01,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 748 transitions. [2022-12-13 17:34:01,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:01,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 748 transitions. [2022-12-13 17:34:01,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.11111111111111) internal successors, (748), 9 states have internal predecessors, (748), 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) [2022-12-13 17:34:01,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:34:01,864 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:34:01,864 INFO L175 Difference]: Start difference. First operand has 164 places, 134 transitions, 1383 flow. Second operand 9 states and 748 transitions. [2022-12-13 17:34:01,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 172 transitions, 2010 flow [2022-12-13 17:34:01,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 172 transitions, 1855 flow, removed 32 selfloop flow, removed 11 redundant places. [2022-12-13 17:34:01,874 INFO L231 Difference]: Finished difference. Result has 157 places, 81 transitions, 787 flow [2022-12-13 17:34:01,874 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=787, PETRI_PLACES=157, PETRI_TRANSITIONS=81} [2022-12-13 17:34:01,875 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 118 predicate places. [2022-12-13 17:34:01,875 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 81 transitions, 787 flow [2022-12-13 17:34:01,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 76.66666666666667) internal successors, (690), 9 states have internal predecessors, (690), 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) [2022-12-13 17:34:01,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:01,875 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:34:01,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-12-13 17:34:01,875 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:34:01,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:01,876 INFO L85 PathProgramCache]: Analyzing trace with hash -57337365, now seen corresponding path program 7 times [2022-12-13 17:34:01,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:01,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38551724] [2022-12-13 17:34:01,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:01,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:34:02,363 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:34:02,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:34:02,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38551724] [2022-12-13 17:34:02,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38551724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:34:02,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:34:02,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:34:02,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325914005] [2022-12-13 17:34:02,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:34:02,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:34:02,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:34:02,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:34:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 17:34:02,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 182 [2022-12-13 17:34:02,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 81 transitions, 787 flow. Second operand has 10 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 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) [2022-12-13 17:34:02,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:34:02,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 182 [2022-12-13 17:34:02,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:02,904 INFO L130 PetriNetUnfolder]: 65/228 cut-off events. [2022-12-13 17:34:02,904 INFO L131 PetriNetUnfolder]: For 1326/1329 co-relation queries the response was YES. [2022-12-13 17:34:02,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1373 conditions, 228 events. 65/228 cut-off events. For 1326/1329 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 795 event pairs, 18 based on Foata normal form. 14/240 useless extension candidates. Maximal degree in co-relation 1320. Up to 85 conditions per place. [2022-12-13 17:34:02,905 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 50 selfloop transitions, 9 changer transitions 52/119 dead transitions. [2022-12-13 17:34:02,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 119 transitions, 1364 flow [2022-12-13 17:34:02,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:34:02,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-12-13 17:34:02,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1041 transitions. [2022-12-13 17:34:02,906 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43998309382924766 [2022-12-13 17:34:02,906 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1041 transitions. [2022-12-13 17:34:02,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1041 transitions. [2022-12-13 17:34:02,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:02,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1041 transitions. [2022-12-13 17:34:02,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 80.07692307692308) internal successors, (1041), 13 states have internal predecessors, (1041), 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) [2022-12-13 17:34:02,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 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) [2022-12-13 17:34:02,909 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 182.0) internal successors, (2548), 14 states have internal predecessors, (2548), 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) [2022-12-13 17:34:02,909 INFO L175 Difference]: Start difference. First operand has 157 places, 81 transitions, 787 flow. Second operand 13 states and 1041 transitions. [2022-12-13 17:34:02,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 119 transitions, 1364 flow [2022-12-13 17:34:02,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 119 transitions, 1071 flow, removed 34 selfloop flow, removed 34 redundant places. [2022-12-13 17:34:02,915 INFO L231 Difference]: Finished difference. Result has 115 places, 65 transitions, 454 flow [2022-12-13 17:34:02,916 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=454, PETRI_PLACES=115, PETRI_TRANSITIONS=65} [2022-12-13 17:34:02,916 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 76 predicate places. [2022-12-13 17:34:02,916 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 65 transitions, 454 flow [2022-12-13 17:34:02,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 76.6) internal successors, (766), 10 states have internal predecessors, (766), 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) [2022-12-13 17:34:02,916 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:02,917 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:34:02,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-12-13 17:34:02,917 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:34:02,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:02,917 INFO L85 PathProgramCache]: Analyzing trace with hash -815418701, now seen corresponding path program 4 times [2022-12-13 17:34:02,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:02,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835877062] [2022-12-13 17:34:02,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:02,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:02,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:34:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:34:03,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:34:03,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835877062] [2022-12-13 17:34:03,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835877062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:34:03,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:34:03,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:34:03,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758275293] [2022-12-13 17:34:03,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:34:03,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:34:03,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:34:03,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:34:03,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:34:03,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:34:03,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 65 transitions, 454 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:34:03,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:34:03,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:34:03,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:03,831 INFO L130 PetriNetUnfolder]: 64/202 cut-off events. [2022-12-13 17:34:03,831 INFO L131 PetriNetUnfolder]: For 428/428 co-relation queries the response was YES. [2022-12-13 17:34:03,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 990 conditions, 202 events. 64/202 cut-off events. For 428/428 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 641 event pairs, 12 based on Foata normal form. 24/226 useless extension candidates. Maximal degree in co-relation 952. Up to 86 conditions per place. [2022-12-13 17:34:03,832 INFO L137 encePairwiseOnDemand]: 174/182 looper letters, 48 selfloop transitions, 6 changer transitions 61/115 dead transitions. [2022-12-13 17:34:03,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 115 transitions, 1066 flow [2022-12-13 17:34:03,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:34:03,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:34:03,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 838 transitions. [2022-12-13 17:34:03,834 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41858141858141856 [2022-12-13 17:34:03,834 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 838 transitions. [2022-12-13 17:34:03,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 838 transitions. [2022-12-13 17:34:03,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:03,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 838 transitions. [2022-12-13 17:34:03,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.18181818181819) internal successors, (838), 11 states have internal predecessors, (838), 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) [2022-12-13 17:34:03,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:34:03,836 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:34:03,836 INFO L175 Difference]: Start difference. First operand has 115 places, 65 transitions, 454 flow. Second operand 11 states and 838 transitions. [2022-12-13 17:34:03,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 115 transitions, 1066 flow [2022-12-13 17:34:03,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 115 transitions, 953 flow, removed 27 selfloop flow, removed 22 redundant places. [2022-12-13 17:34:03,840 INFO L231 Difference]: Finished difference. Result has 100 places, 51 transitions, 318 flow [2022-12-13 17:34:03,840 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=318, PETRI_PLACES=100, PETRI_TRANSITIONS=51} [2022-12-13 17:34:03,840 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 61 predicate places. [2022-12-13 17:34:03,840 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 51 transitions, 318 flow [2022-12-13 17:34:03,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:34:03,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:03,840 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:34:03,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-12-13 17:34:03,840 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:34:03,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:03,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1927157631, now seen corresponding path program 5 times [2022-12-13 17:34:03,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:03,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649454106] [2022-12-13 17:34:03,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:03,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:03,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:34:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:34:04,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:34:04,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649454106] [2022-12-13 17:34:04,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649454106] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:34:04,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:34:04,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:34:04,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342360155] [2022-12-13 17:34:04,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:34:04,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:34:04,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:34:04,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:34:04,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:34:04,374 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:34:04,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 51 transitions, 318 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:34:04,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:34:04,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:34:04,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:04,552 INFO L130 PetriNetUnfolder]: 30/121 cut-off events. [2022-12-13 17:34:04,552 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2022-12-13 17:34:04,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 121 events. 30/121 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 251 event pairs, 12 based on Foata normal form. 12/133 useless extension candidates. Maximal degree in co-relation 560. Up to 75 conditions per place. [2022-12-13 17:34:04,552 INFO L137 encePairwiseOnDemand]: 173/182 looper letters, 45 selfloop transitions, 9 changer transitions 16/70 dead transitions. [2022-12-13 17:34:04,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 70 transitions, 581 flow [2022-12-13 17:34:04,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 17:34:04,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 17:34:04,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 684 transitions. [2022-12-13 17:34:04,553 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4175824175824176 [2022-12-13 17:34:04,553 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 684 transitions. [2022-12-13 17:34:04,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 684 transitions. [2022-12-13 17:34:04,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:04,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 684 transitions. [2022-12-13 17:34:04,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 76.0) internal successors, (684), 9 states have internal predecessors, (684), 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) [2022-12-13 17:34:04,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:34:04,555 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 182.0) internal successors, (1820), 10 states have internal predecessors, (1820), 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) [2022-12-13 17:34:04,555 INFO L175 Difference]: Start difference. First operand has 100 places, 51 transitions, 318 flow. Second operand 9 states and 684 transitions. [2022-12-13 17:34:04,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 70 transitions, 581 flow [2022-12-13 17:34:04,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 70 transitions, 493 flow, removed 14 selfloop flow, removed 17 redundant places. [2022-12-13 17:34:04,557 INFO L231 Difference]: Finished difference. Result has 90 places, 51 transitions, 284 flow [2022-12-13 17:34:04,558 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=284, PETRI_PLACES=90, PETRI_TRANSITIONS=51} [2022-12-13 17:34:04,558 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 51 predicate places. [2022-12-13 17:34:04,558 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 51 transitions, 284 flow [2022-12-13 17:34:04,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:34:04,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:04,558 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:34:04,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-12-13 17:34:04,558 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 17:34:04,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:04,559 INFO L85 PathProgramCache]: Analyzing trace with hash 2094861741, now seen corresponding path program 6 times [2022-12-13 17:34:04,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:04,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754736052] [2022-12-13 17:34:04,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:04,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:34:04,863 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 17:34:04,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:34:04,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754736052] [2022-12-13 17:34:04,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754736052] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:34:04,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:34:04,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:34:04,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432883599] [2022-12-13 17:34:04,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:34:04,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:34:04,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:34:04,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:34:04,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:34:05,170 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 182 [2022-12-13 17:34:05,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 51 transitions, 284 flow. Second operand has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:34:05,170 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:34:05,170 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 182 [2022-12-13 17:34:05,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:05,328 INFO L130 PetriNetUnfolder]: 14/74 cut-off events. [2022-12-13 17:34:05,328 INFO L131 PetriNetUnfolder]: For 175/175 co-relation queries the response was YES. [2022-12-13 17:34:05,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 74 events. 14/74 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 17/91 useless extension candidates. Maximal degree in co-relation 298. Up to 29 conditions per place. [2022-12-13 17:34:05,329 INFO L137 encePairwiseOnDemand]: 174/182 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2022-12-13 17:34:05,329 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 66 transitions, 503 flow [2022-12-13 17:34:05,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 17:34:05,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-12-13 17:34:05,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 819 transitions. [2022-12-13 17:34:05,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4090909090909091 [2022-12-13 17:34:05,331 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 819 transitions. [2022-12-13 17:34:05,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 819 transitions. [2022-12-13 17:34:05,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:05,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 819 transitions. [2022-12-13 17:34:05,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.45454545454545) internal successors, (819), 11 states have internal predecessors, (819), 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) [2022-12-13 17:34:05,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:34:05,333 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 182.0) internal successors, (2184), 12 states have internal predecessors, (2184), 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) [2022-12-13 17:34:05,333 INFO L175 Difference]: Start difference. First operand has 90 places, 51 transitions, 284 flow. Second operand 11 states and 819 transitions. [2022-12-13 17:34:05,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 66 transitions, 503 flow [2022-12-13 17:34:05,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 66 transitions, 454 flow, removed 12 selfloop flow, removed 7 redundant places. [2022-12-13 17:34:05,334 INFO L231 Difference]: Finished difference. Result has 90 places, 0 transitions, 0 flow [2022-12-13 17:34:05,334 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=90, PETRI_TRANSITIONS=0} [2022-12-13 17:34:05,335 INFO L288 CegarLoopForPetriNet]: 39 programPoint places, 51 predicate places. [2022-12-13 17:34:05,335 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 0 transitions, 0 flow [2022-12-13 17:34:05,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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) [2022-12-13 17:34:05,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-12-13 17:34:05,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-12-13 17:34:05,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-13 17:34:05,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-12-13 17:34:05,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-12-13 17:34:05,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-12-13 17:34:05,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-12-13 17:34:05,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 17:34:05,337 INFO L445 BasicCegarLoop]: Path program histogram: [7, 6, 6, 6, 2, 2, 1, 1, 1] [2022-12-13 17:34:05,341 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:34:05,341 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:34:05,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:34:05 BasicIcfg [2022-12-13 17:34:05,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:34:05,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:34:05,343 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:34:05,343 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:34:05,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:29:36" (3/4) ... [2022-12-13 17:34:05,345 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:34:05,349 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 17:34:05,351 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 17:34:05,351 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 17:34:05,351 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:34:05,370 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:34:05,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:34:05,371 INFO L158 Benchmark]: Toolchain (without parser) took 269507.97ms. Allocated memory was 151.0MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 112.6MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-12-13 17:34:05,371 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:34:05,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.99ms. Allocated memory is still 151.0MB. Free memory was 112.6MB in the beginning and 84.2MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 17:34:05,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.90ms. Allocated memory is still 151.0MB. Free memory was 84.2MB in the beginning and 81.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:34:05,371 INFO L158 Benchmark]: Boogie Preprocessor took 36.93ms. Allocated memory is still 151.0MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:34:05,371 INFO L158 Benchmark]: RCFGBuilder took 385.18ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 80.1MB in the beginning and 173.9MB in the end (delta: -93.8MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-12-13 17:34:05,371 INFO L158 Benchmark]: TraceAbstraction took 268480.12ms. Allocated memory was 205.5MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 173.0MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-12-13 17:34:05,372 INFO L158 Benchmark]: Witness Printer took 27.41ms. Allocated memory is still 2.7GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:34:05,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory is still 94.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.99ms. Allocated memory is still 151.0MB. Free memory was 112.6MB in the beginning and 84.2MB in the end (delta: 28.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.90ms. Allocated memory is still 151.0MB. Free memory was 84.2MB in the beginning and 81.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.93ms. Allocated memory is still 151.0MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 385.18ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 80.1MB in the beginning and 173.9MB in the end (delta: -93.8MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * TraceAbstraction took 268480.12ms. Allocated memory was 205.5MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 173.0MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 27.41ms. Allocated memory is still 2.7GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 102 PlacesBefore, 39 PlacesAfterwards, 102 TransitionsBefore, 36 TransitionsAfterwards, 2220 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 79 TotalNumberOfCompositions, 9138 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3051, independent: 2653, independent conditional: 0, independent unconditional: 2653, dependent: 398, dependent conditional: 0, dependent unconditional: 398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1043, independent: 994, independent conditional: 0, independent unconditional: 994, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3051, independent: 1659, independent conditional: 0, independent unconditional: 1659, dependent: 349, dependent conditional: 0, dependent unconditional: 349, unknown: 1043, unknown conditional: 0, unknown unconditional: 1043] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 943]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 943]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 931]: 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, 138 locations, 7 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: 268.4s, OverallIterations: 32, TraceHistogramMax: 10, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 90.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 21 mSolverCounterUnknown, 6067 SdHoareTripleChecker+Valid, 63.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4717 mSDsluCounter, 532 SdHoareTripleChecker+Invalid, 60.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 382 mSDsCounter, 2084 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18277 IncrementalHoareTripleChecker+Invalid, 20382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2084 mSolverCounterUnsat, 150 mSDtfsCounter, 18277 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 824 GetRequests, 368 SyntacticMatches, 14 SemanticMatches, 442 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1408 ImplicationChecksByTransitivity, 37.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13648occurred in iteration=19, InterpolantAutomatonStates: 324, 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: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 171.8s InterpolantComputationTime, 1109 NumberOfCodeBlocks, 1059 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1180 ConstructedInterpolants, 15 QuantifiedInterpolants, 20983 SizeOfPredicates, 35 NumberOfNonLiveVariables, 1617 ConjunctsInSsa, 349 ConjunctsInUnsatCore, 47 InterpolantComputations, 30 PerfectInterpolantSequences, 1554/2143 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 17:34:05,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76675c70-d2ee-4ea4-85d7-416918d5e583/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE