./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/fibonacci.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/fibonacci.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc --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 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e --- 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-5e519f3 [2022-11-02 20:11:14,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:11:14,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:11:14,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:11:14,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:11:14,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:11:14,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:11:14,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:11:14,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:11:14,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:11:14,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:11:14,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:11:14,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:11:14,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:11:14,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:11:14,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:11:14,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:11:14,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:11:14,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:11:14,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:11:14,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:11:14,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:11:14,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:11:14,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:11:14,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:11:14,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:11:14,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:11:14,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:11:14,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:11:14,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:11:14,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:11:14,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:11:14,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:11:14,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:11:14,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:11:14,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:11:14,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:11:14,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:11:14,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:11:14,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:11:14,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:11:14,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:11:14,558 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:11:14,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:11:14,561 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:11:14,561 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:11:14,562 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:11:14,563 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:11:14,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:11:14,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:11:14,564 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:11:14,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:11:14,565 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:11:14,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:11:14,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:11:14,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:11:14,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:11:14,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:11:14,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:11:14,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:11:14,567 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:11:14,567 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:11:14,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:11:14,568 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:11:14,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:11:14,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:11:14,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:11:14,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:11:14,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:11:14,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:11:14,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:11:14,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:11:14,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:11:14,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:11:14,572 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:11:14,572 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:11:14,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:11:14,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f56768e1b40ef6b1b210f9cfb796e99d1f27ee48ed204adfea165b19bcc995e [2022-11-02 20:11:14,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:11:14,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:11:14,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:11:14,952 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:11:14,953 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:11:14,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/fibonacci.wvr.c [2022-11-02 20:11:15,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/data/e9ae735a5/496e6980a07d4306bdd06aa12a9b65e8/FLAGa9e5960fb [2022-11-02 20:11:15,572 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:11:15,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/sv-benchmarks/c/weaver/fibonacci.wvr.c [2022-11-02 20:11:15,579 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/data/e9ae735a5/496e6980a07d4306bdd06aa12a9b65e8/FLAGa9e5960fb [2022-11-02 20:11:15,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/data/e9ae735a5/496e6980a07d4306bdd06aa12a9b65e8 [2022-11-02 20:11:15,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:11:15,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:11:15,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:11:15,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:11:15,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:11:15,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:11:15" (1/1) ... [2022-11-02 20:11:15,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360ba902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:15, skipping insertion in model container [2022-11-02 20:11:15,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:11:15" (1/1) ... [2022-11-02 20:11:15,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:11:15,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:11:16,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/sv-benchmarks/c/weaver/fibonacci.wvr.c[2330,2343] [2022-11-02 20:11:16,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:11:16,228 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:11:16,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/sv-benchmarks/c/weaver/fibonacci.wvr.c[2330,2343] [2022-11-02 20:11:16,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:11:16,286 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:11:16,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16 WrapperNode [2022-11-02 20:11:16,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:11:16,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:11:16,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:11:16,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:11:16,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,369 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 272 [2022-11-02 20:11:16,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:11:16,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:11:16,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:11:16,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:11:16,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:11:16,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:11:16,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:11:16,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:11:16,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (1/1) ... [2022-11-02 20:11:16,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:11:16,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:11:16,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:11:16,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:11:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:11:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:11:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:11:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:11:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:11:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:11:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:11:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:11:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:11:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:11:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:11:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:11:16,538 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:11:16,678 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:11:16,680 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:11:17,160 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:11:17,172 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:11:17,172 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 20:11:17,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:11:17 BoogieIcfgContainer [2022-11-02 20:11:17,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:11:17,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:11:17,177 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:11:17,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:11:17,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:11:15" (1/3) ... [2022-11-02 20:11:17,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d405eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:11:17, skipping insertion in model container [2022-11-02 20:11:17,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:11:16" (2/3) ... [2022-11-02 20:11:17,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d405eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:11:17, skipping insertion in model container [2022-11-02 20:11:17,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:11:17" (3/3) ... [2022-11-02 20:11:17,184 INFO L112 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2022-11-02 20:11:17,193 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:11:17,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:11:17,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-02 20:11:17,204 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:11:17,362 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:11:17,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 355 places, 365 transitions, 746 flow [2022-11-02 20:11:17,588 INFO L130 PetriNetUnfolder]: 17/363 cut-off events. [2022-11-02 20:11:17,589 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:11:17,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 363 events. 17/363 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 710 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 227. Up to 2 conditions per place. [2022-11-02 20:11:17,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 355 places, 365 transitions, 746 flow [2022-11-02 20:11:17,608 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 336 places, 345 transitions, 702 flow [2022-11-02 20:11:17,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:11:17,624 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;@7996070f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:11:17,624 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-02 20:11:17,630 INFO L130 PetriNetUnfolder]: 0/25 cut-off events. [2022-11-02 20:11:17,630 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:11:17,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:17,631 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:17,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:17,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:17,637 INFO L85 PathProgramCache]: Analyzing trace with hash -210123575, now seen corresponding path program 1 times [2022-11-02 20:11:17,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:17,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036280417] [2022-11-02 20:11:17,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:17,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:17,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:17,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:17,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036280417] [2022-11-02 20:11:17,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036280417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:17,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:17,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:17,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653511763] [2022-11-02 20:11:17,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:17,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:17,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:17,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:17,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:17,904 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 365 [2022-11-02 20:11:17,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 345 transitions, 702 flow. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:17,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:17,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 365 [2022-11-02 20:11:17,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:18,234 INFO L130 PetriNetUnfolder]: 34/949 cut-off events. [2022-11-02 20:11:18,235 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-02 20:11:18,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 949 events. 34/949 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4835 event pairs, 15 based on Foata normal form. 33/837 useless extension candidates. Maximal degree in co-relation 774. Up to 52 conditions per place. [2022-11-02 20:11:18,247 INFO L137 encePairwiseOnDemand]: 351/365 looper letters, 13 selfloop transitions, 2 changer transitions 1/333 dead transitions. [2022-11-02 20:11:18,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 333 transitions, 708 flow [2022-11-02 20:11:18,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:18,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:18,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1035 transitions. [2022-11-02 20:11:18,274 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9452054794520548 [2022-11-02 20:11:18,275 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1035 transitions. [2022-11-02 20:11:18,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1035 transitions. [2022-11-02 20:11:18,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:18,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1035 transitions. [2022-11-02 20:11:18,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,303 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,304 INFO L175 Difference]: Start difference. First operand has 336 places, 345 transitions, 702 flow. Second operand 3 states and 1035 transitions. [2022-11-02 20:11:18,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 333 transitions, 708 flow [2022-11-02 20:11:18,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 333 transitions, 700 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:11:18,321 INFO L231 Difference]: Finished difference. Result has 333 places, 332 transitions, 672 flow [2022-11-02 20:11:18,324 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=672, PETRI_PLACES=333, PETRI_TRANSITIONS=332} [2022-11-02 20:11:18,329 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -3 predicate places. [2022-11-02 20:11:18,330 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 332 transitions, 672 flow [2022-11-02 20:11:18,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:18,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:18,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:11:18,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:18,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:18,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1529295357, now seen corresponding path program 1 times [2022-11-02 20:11:18,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:18,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427402602] [2022-11-02 20:11:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:18,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:18,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:18,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427402602] [2022-11-02 20:11:18,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427402602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:18,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:18,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:18,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252227791] [2022-11-02 20:11:18,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:18,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:18,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:18,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:18,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:18,431 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 365 [2022-11-02 20:11:18,433 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 332 transitions, 672 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,433 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:18,433 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 365 [2022-11-02 20:11:18,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:18,563 INFO L130 PetriNetUnfolder]: 20/443 cut-off events. [2022-11-02 20:11:18,563 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:11:18,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 443 events. 20/443 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1319 event pairs, 12 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 478. Up to 49 conditions per place. [2022-11-02 20:11:18,570 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 22 selfloop transitions, 2 changer transitions 0/331 dead transitions. [2022-11-02 20:11:18,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 331 transitions, 718 flow [2022-11-02 20:11:18,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:18,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:18,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2022-11-02 20:11:18,575 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9187214611872146 [2022-11-02 20:11:18,576 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1006 transitions. [2022-11-02 20:11:18,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1006 transitions. [2022-11-02 20:11:18,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:18,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1006 transitions. [2022-11-02 20:11:18,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,584 INFO L175 Difference]: Start difference. First operand has 333 places, 332 transitions, 672 flow. Second operand 3 states and 1006 transitions. [2022-11-02 20:11:18,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 331 transitions, 718 flow [2022-11-02 20:11:18,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 331 transitions, 714 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:18,596 INFO L231 Difference]: Finished difference. Result has 331 places, 331 transitions, 670 flow [2022-11-02 20:11:18,597 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=670, PETRI_PLACES=331, PETRI_TRANSITIONS=331} [2022-11-02 20:11:18,598 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -5 predicate places. [2022-11-02 20:11:18,598 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 331 transitions, 670 flow [2022-11-02 20:11:18,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:18,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:18,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:11:18,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:18,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:18,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1025777989, now seen corresponding path program 1 times [2022-11-02 20:11:18,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:18,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230463577] [2022-11-02 20:11:18,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:18,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:18,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:18,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230463577] [2022-11-02 20:11:18,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230463577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:18,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:18,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:18,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631455679] [2022-11-02 20:11:18,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:18,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:18,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:18,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:18,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:18,722 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 365 [2022-11-02 20:11:18,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 331 transitions, 670 flow. Second operand has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:18,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 365 [2022-11-02 20:11:18,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:18,863 INFO L130 PetriNetUnfolder]: 19/547 cut-off events. [2022-11-02 20:11:18,863 INFO L131 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2022-11-02 20:11:18,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 547 events. 19/547 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1864 event pairs, 9 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 563. Up to 40 conditions per place. [2022-11-02 20:11:18,871 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 19 selfloop transitions, 2 changer transitions 0/330 dead transitions. [2022-11-02 20:11:18,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 330 transitions, 710 flow [2022-11-02 20:11:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:18,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2022-11-02 20:11:18,874 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9242009132420091 [2022-11-02 20:11:18,875 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1012 transitions. [2022-11-02 20:11:18,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1012 transitions. [2022-11-02 20:11:18,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:18,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1012 transitions. [2022-11-02 20:11:18,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,882 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,882 INFO L175 Difference]: Start difference. First operand has 331 places, 331 transitions, 670 flow. Second operand 3 states and 1012 transitions. [2022-11-02 20:11:18,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 330 transitions, 710 flow [2022-11-02 20:11:18,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 330 transitions, 706 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:18,889 INFO L231 Difference]: Finished difference. Result has 330 places, 330 transitions, 668 flow [2022-11-02 20:11:18,890 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=668, PETRI_PLACES=330, PETRI_TRANSITIONS=330} [2022-11-02 20:11:18,891 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -6 predicate places. [2022-11-02 20:11:18,891 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 330 transitions, 668 flow [2022-11-02 20:11:18,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:18,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:18,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:18,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:11:18,893 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:18,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:18,894 INFO L85 PathProgramCache]: Analyzing trace with hash -905015023, now seen corresponding path program 1 times [2022-11-02 20:11:18,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:18,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768221842] [2022-11-02 20:11:18,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:18,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:18,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:18,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:18,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768221842] [2022-11-02 20:11:18,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768221842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:18,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:18,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:18,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541254418] [2022-11-02 20:11:18,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:18,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:18,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:18,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:18,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:18,999 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 365 [2022-11-02 20:11:19,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 330 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:19,000 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 365 [2022-11-02 20:11:19,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:19,108 INFO L130 PetriNetUnfolder]: 10/447 cut-off events. [2022-11-02 20:11:19,109 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-11-02 20:11:19,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 447 events. 10/447 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1239 event pairs, 3 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 430. Up to 20 conditions per place. [2022-11-02 20:11:19,115 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 13 selfloop transitions, 2 changer transitions 0/329 dead transitions. [2022-11-02 20:11:19,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 329 transitions, 696 flow [2022-11-02 20:11:19,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:19,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:19,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1024 transitions. [2022-11-02 20:11:19,118 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9351598173515981 [2022-11-02 20:11:19,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1024 transitions. [2022-11-02 20:11:19,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1024 transitions. [2022-11-02 20:11:19,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:19,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1024 transitions. [2022-11-02 20:11:19,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,130 INFO L175 Difference]: Start difference. First operand has 330 places, 330 transitions, 668 flow. Second operand 3 states and 1024 transitions. [2022-11-02 20:11:19,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 329 transitions, 696 flow [2022-11-02 20:11:19,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 329 transitions, 692 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:19,137 INFO L231 Difference]: Finished difference. Result has 329 places, 329 transitions, 666 flow [2022-11-02 20:11:19,138 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=666, PETRI_PLACES=329, PETRI_TRANSITIONS=329} [2022-11-02 20:11:19,139 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -7 predicate places. [2022-11-02 20:11:19,140 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 329 transitions, 666 flow [2022-11-02 20:11:19,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:19,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:19,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:11:19,146 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:19,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:19,147 INFO L85 PathProgramCache]: Analyzing trace with hash -526856850, now seen corresponding path program 1 times [2022-11-02 20:11:19,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:19,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609243027] [2022-11-02 20:11:19,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:19,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:19,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:19,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609243027] [2022-11-02 20:11:19,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609243027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:19,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:19,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:19,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077193977] [2022-11-02 20:11:19,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:19,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:19,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:19,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:19,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:19,247 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 365 [2022-11-02 20:11:19,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 329 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,249 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:19,249 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 365 [2022-11-02 20:11:19,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:19,364 INFO L130 PetriNetUnfolder]: 20/440 cut-off events. [2022-11-02 20:11:19,364 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-02 20:11:19,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 440 events. 20/440 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1476 event pairs, 12 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 442. Up to 49 conditions per place. [2022-11-02 20:11:19,371 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 22 selfloop transitions, 2 changer transitions 0/328 dead transitions. [2022-11-02 20:11:19,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 328 transitions, 712 flow [2022-11-02 20:11:19,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:19,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:19,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2022-11-02 20:11:19,374 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9187214611872146 [2022-11-02 20:11:19,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1006 transitions. [2022-11-02 20:11:19,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1006 transitions. [2022-11-02 20:11:19,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:19,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1006 transitions. [2022-11-02 20:11:19,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,381 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,381 INFO L175 Difference]: Start difference. First operand has 329 places, 329 transitions, 666 flow. Second operand 3 states and 1006 transitions. [2022-11-02 20:11:19,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 328 transitions, 712 flow [2022-11-02 20:11:19,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 328 transitions, 708 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:19,388 INFO L231 Difference]: Finished difference. Result has 328 places, 328 transitions, 664 flow [2022-11-02 20:11:19,389 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=328, PETRI_TRANSITIONS=328} [2022-11-02 20:11:19,391 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -8 predicate places. [2022-11-02 20:11:19,391 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 328 transitions, 664 flow [2022-11-02 20:11:19,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.3333333333333) internal successors, (985), 3 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:19,393 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:19,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:11:19,393 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:19,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:19,394 INFO L85 PathProgramCache]: Analyzing trace with hash -356671451, now seen corresponding path program 1 times [2022-11-02 20:11:19,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:19,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698982011] [2022-11-02 20:11:19,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:19,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:19,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:19,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698982011] [2022-11-02 20:11:19,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698982011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:19,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:19,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:19,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081048538] [2022-11-02 20:11:19,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:19,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:19,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:19,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:19,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:19,486 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 365 [2022-11-02 20:11:19,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 328 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:19,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 365 [2022-11-02 20:11:19,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:19,622 INFO L130 PetriNetUnfolder]: 17/436 cut-off events. [2022-11-02 20:11:19,622 INFO L131 PetriNetUnfolder]: For 12/14 co-relation queries the response was YES. [2022-11-02 20:11:19,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 436 events. 17/436 cut-off events. For 12/14 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1249 event pairs, 9 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 422. Up to 40 conditions per place. [2022-11-02 20:11:19,628 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 19 selfloop transitions, 2 changer transitions 0/327 dead transitions. [2022-11-02 20:11:19,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 327 transitions, 704 flow [2022-11-02 20:11:19,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:19,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:19,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2022-11-02 20:11:19,640 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9242009132420091 [2022-11-02 20:11:19,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1012 transitions. [2022-11-02 20:11:19,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1012 transitions. [2022-11-02 20:11:19,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:19,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1012 transitions. [2022-11-02 20:11:19,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,647 INFO L175 Difference]: Start difference. First operand has 328 places, 328 transitions, 664 flow. Second operand 3 states and 1012 transitions. [2022-11-02 20:11:19,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 327 transitions, 704 flow [2022-11-02 20:11:19,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 327 transitions, 700 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:19,657 INFO L231 Difference]: Finished difference. Result has 327 places, 327 transitions, 662 flow [2022-11-02 20:11:19,658 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=327, PETRI_TRANSITIONS=327} [2022-11-02 20:11:19,658 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -9 predicate places. [2022-11-02 20:11:19,658 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 327 transitions, 662 flow [2022-11-02 20:11:19,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:19,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:19,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:11:19,660 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:19,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:19,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1737316052, now seen corresponding path program 1 times [2022-11-02 20:11:19,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:19,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391350120] [2022-11-02 20:11:19,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:19,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:19,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:19,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:19,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391350120] [2022-11-02 20:11:19,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391350120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:19,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:19,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:19,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591168772] [2022-11-02 20:11:19,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:19,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:19,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:19,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:19,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:19,716 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 365 [2022-11-02 20:11:19,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 327 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:19,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 365 [2022-11-02 20:11:19,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:19,813 INFO L130 PetriNetUnfolder]: 8/336 cut-off events. [2022-11-02 20:11:19,813 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-02 20:11:19,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 336 events. 8/336 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 763 event pairs, 3 based on Foata normal form. 0/297 useless extension candidates. Maximal degree in co-relation 294. Up to 19 conditions per place. [2022-11-02 20:11:19,818 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 12 selfloop transitions, 2 changer transitions 0/326 dead transitions. [2022-11-02 20:11:19,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 326 transitions, 688 flow [2022-11-02 20:11:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:19,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:19,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1023 transitions. [2022-11-02 20:11:19,822 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9342465753424658 [2022-11-02 20:11:19,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1023 transitions. [2022-11-02 20:11:19,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1023 transitions. [2022-11-02 20:11:19,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:19,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1023 transitions. [2022-11-02 20:11:19,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 341.0) internal successors, (1023), 3 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,829 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,829 INFO L175 Difference]: Start difference. First operand has 327 places, 327 transitions, 662 flow. Second operand 3 states and 1023 transitions. [2022-11-02 20:11:19,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 326 transitions, 688 flow [2022-11-02 20:11:19,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 326 transitions, 684 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:19,836 INFO L231 Difference]: Finished difference. Result has 326 places, 326 transitions, 660 flow [2022-11-02 20:11:19,837 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=326, PETRI_TRANSITIONS=326} [2022-11-02 20:11:19,838 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -10 predicate places. [2022-11-02 20:11:19,838 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 326 transitions, 660 flow [2022-11-02 20:11:19,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:19,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:19,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:11:19,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:19,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:19,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1581849840, now seen corresponding path program 1 times [2022-11-02 20:11:19,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:19,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302711197] [2022-11-02 20:11:19,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:19,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:19,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:19,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:19,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302711197] [2022-11-02 20:11:19,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302711197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:19,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:19,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:19,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927351207] [2022-11-02 20:11:19,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:19,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:19,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:19,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:19,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:19,894 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 365 [2022-11-02 20:11:19,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 326 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:19,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:19,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 365 [2022-11-02 20:11:19,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:20,013 INFO L130 PetriNetUnfolder]: 17/428 cut-off events. [2022-11-02 20:11:20,014 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:11:20,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 428 events. 17/428 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1242 event pairs, 6 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 404. Up to 26 conditions per place. [2022-11-02 20:11:20,019 INFO L137 encePairwiseOnDemand]: 358/365 looper letters, 15 selfloop transitions, 3 changer transitions 0/323 dead transitions. [2022-11-02 20:11:20,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 323 transitions, 691 flow [2022-11-02 20:11:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:20,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2022-11-02 20:11:20,022 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9242009132420091 [2022-11-02 20:11:20,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1012 transitions. [2022-11-02 20:11:20,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1012 transitions. [2022-11-02 20:11:20,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:20,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1012 transitions. [2022-11-02 20:11:20,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,028 INFO L175 Difference]: Start difference. First operand has 326 places, 326 transitions, 660 flow. Second operand 3 states and 1012 transitions. [2022-11-02 20:11:20,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 323 transitions, 691 flow [2022-11-02 20:11:20,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 323 transitions, 687 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:20,035 INFO L231 Difference]: Finished difference. Result has 322 places, 322 transitions, 654 flow [2022-11-02 20:11:20,035 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=322, PETRI_TRANSITIONS=322} [2022-11-02 20:11:20,036 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -14 predicate places. [2022-11-02 20:11:20,036 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 322 transitions, 654 flow [2022-11-02 20:11:20,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:20,037 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:20,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:11:20,037 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:20,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:20,038 INFO L85 PathProgramCache]: Analyzing trace with hash 260752251, now seen corresponding path program 1 times [2022-11-02 20:11:20,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:20,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368182383] [2022-11-02 20:11:20,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:20,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:20,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:20,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368182383] [2022-11-02 20:11:20,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368182383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:20,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:20,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:20,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265933683] [2022-11-02 20:11:20,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:20,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:20,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:20,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:20,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:20,117 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 365 [2022-11-02 20:11:20,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 322 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:20,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 365 [2022-11-02 20:11:20,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:20,223 INFO L130 PetriNetUnfolder]: 17/424 cut-off events. [2022-11-02 20:11:20,223 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-02 20:11:20,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 424 events. 17/424 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1359 event pairs, 6 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 346. Up to 26 conditions per place. [2022-11-02 20:11:20,229 INFO L137 encePairwiseOnDemand]: 358/365 looper letters, 15 selfloop transitions, 3 changer transitions 0/319 dead transitions. [2022-11-02 20:11:20,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 319 transitions, 685 flow [2022-11-02 20:11:20,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:20,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2022-11-02 20:11:20,232 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9242009132420091 [2022-11-02 20:11:20,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1012 transitions. [2022-11-02 20:11:20,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1012 transitions. [2022-11-02 20:11:20,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:20,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1012 transitions. [2022-11-02 20:11:20,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,241 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,241 INFO L175 Difference]: Start difference. First operand has 322 places, 322 transitions, 654 flow. Second operand 3 states and 1012 transitions. [2022-11-02 20:11:20,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 319 transitions, 685 flow [2022-11-02 20:11:20,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 319 transitions, 679 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:20,249 INFO L231 Difference]: Finished difference. Result has 318 places, 318 transitions, 646 flow [2022-11-02 20:11:20,249 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=646, PETRI_PLACES=318, PETRI_TRANSITIONS=318} [2022-11-02 20:11:20,250 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -18 predicate places. [2022-11-02 20:11:20,251 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 318 transitions, 646 flow [2022-11-02 20:11:20,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:20,252 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:20,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:11:20,252 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:20,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash -23732064, now seen corresponding path program 1 times [2022-11-02 20:11:20,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:20,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687628153] [2022-11-02 20:11:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:20,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:20,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687628153] [2022-11-02 20:11:20,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687628153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:20,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:20,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:20,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280245660] [2022-11-02 20:11:20,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:20,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:20,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:20,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:20,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:20,296 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 365 [2022-11-02 20:11:20,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 318 transitions, 646 flow. Second operand has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:20,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 365 [2022-11-02 20:11:20,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:20,448 INFO L130 PetriNetUnfolder]: 21/685 cut-off events. [2022-11-02 20:11:20,448 INFO L131 PetriNetUnfolder]: For 5/7 co-relation queries the response was YES. [2022-11-02 20:11:20,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 685 events. 21/685 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2442 event pairs, 3 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 526. Up to 21 conditions per place. [2022-11-02 20:11:20,456 INFO L137 encePairwiseOnDemand]: 359/365 looper letters, 17 selfloop transitions, 3 changer transitions 0/320 dead transitions. [2022-11-02 20:11:20,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 320 transitions, 694 flow [2022-11-02 20:11:20,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:20,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2022-11-02 20:11:20,459 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2022-11-02 20:11:20,459 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1022 transitions. [2022-11-02 20:11:20,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1022 transitions. [2022-11-02 20:11:20,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:20,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1022 transitions. [2022-11-02 20:11:20,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,466 INFO L175 Difference]: Start difference. First operand has 318 places, 318 transitions, 646 flow. Second operand 3 states and 1022 transitions. [2022-11-02 20:11:20,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 320 transitions, 694 flow [2022-11-02 20:11:20,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 320 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:20,473 INFO L231 Difference]: Finished difference. Result has 316 places, 316 transitions, 647 flow [2022-11-02 20:11:20,474 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=647, PETRI_PLACES=316, PETRI_TRANSITIONS=316} [2022-11-02 20:11:20,475 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -20 predicate places. [2022-11-02 20:11:20,475 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 316 transitions, 647 flow [2022-11-02 20:11:20,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:20,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:20,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:11:20,476 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:20,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:20,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1331659014, now seen corresponding path program 1 times [2022-11-02 20:11:20,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:20,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981206207] [2022-11-02 20:11:20,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:20,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:20,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:20,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981206207] [2022-11-02 20:11:20,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981206207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:20,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:20,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:20,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937531839] [2022-11-02 20:11:20,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:20,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:20,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:20,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:20,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:20,518 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 365 [2022-11-02 20:11:20,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 316 transitions, 647 flow. Second operand has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:20,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 365 [2022-11-02 20:11:20,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:20,717 INFO L130 PetriNetUnfolder]: 37/830 cut-off events. [2022-11-02 20:11:20,717 INFO L131 PetriNetUnfolder]: For 31/36 co-relation queries the response was YES. [2022-11-02 20:11:20,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 915 conditions, 830 events. 37/830 cut-off events. For 31/36 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3836 event pairs, 9 based on Foata normal form. 1/743 useless extension candidates. Maximal degree in co-relation 398. Up to 40 conditions per place. [2022-11-02 20:11:20,730 INFO L137 encePairwiseOnDemand]: 359/365 looper letters, 17 selfloop transitions, 3 changer transitions 0/318 dead transitions. [2022-11-02 20:11:20,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 318 transitions, 695 flow [2022-11-02 20:11:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:20,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2022-11-02 20:11:20,733 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9333333333333333 [2022-11-02 20:11:20,733 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1022 transitions. [2022-11-02 20:11:20,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1022 transitions. [2022-11-02 20:11:20,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:20,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1022 transitions. [2022-11-02 20:11:20,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,765 INFO L175 Difference]: Start difference. First operand has 316 places, 316 transitions, 647 flow. Second operand 3 states and 1022 transitions. [2022-11-02 20:11:20,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 318 transitions, 695 flow [2022-11-02 20:11:20,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 318 transitions, 692 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:11:20,773 INFO L231 Difference]: Finished difference. Result has 315 places, 314 transitions, 651 flow [2022-11-02 20:11:20,774 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=651, PETRI_PLACES=315, PETRI_TRANSITIONS=314} [2022-11-02 20:11:20,775 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -21 predicate places. [2022-11-02 20:11:20,775 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 314 transitions, 651 flow [2022-11-02 20:11:20,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:20,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:20,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:11:20,777 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:20,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:20,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1055941190, now seen corresponding path program 1 times [2022-11-02 20:11:20,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:20,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599736208] [2022-11-02 20:11:20,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:20,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:20,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:20,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599736208] [2022-11-02 20:11:20,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599736208] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:20,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:20,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:20,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071757563] [2022-11-02 20:11:20,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:20,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:20,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:20,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:20,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:20,830 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 365 [2022-11-02 20:11:20,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 314 transitions, 651 flow. Second operand has 3 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:20,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:20,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 365 [2022-11-02 20:11:20,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:21,177 INFO L130 PetriNetUnfolder]: 74/1778 cut-off events. [2022-11-02 20:11:21,178 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-11-02 20:11:21,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1935 conditions, 1778 events. 74/1778 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11672 event pairs, 22 based on Foata normal form. 0/1598 useless extension candidates. Maximal degree in co-relation 910. Up to 88 conditions per place. [2022-11-02 20:11:21,193 INFO L137 encePairwiseOnDemand]: 361/365 looper letters, 11 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2022-11-02 20:11:21,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 315 transitions, 680 flow [2022-11-02 20:11:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:21,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1032 transitions. [2022-11-02 20:11:21,196 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9424657534246575 [2022-11-02 20:11:21,197 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1032 transitions. [2022-11-02 20:11:21,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1032 transitions. [2022-11-02 20:11:21,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:21,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1032 transitions. [2022-11-02 20:11:21,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.0) internal successors, (1032), 3 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:21,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:21,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:21,203 INFO L175 Difference]: Start difference. First operand has 315 places, 314 transitions, 651 flow. Second operand 3 states and 1032 transitions. [2022-11-02 20:11:21,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 315 transitions, 680 flow [2022-11-02 20:11:21,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 315 transitions, 677 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:11:21,210 INFO L231 Difference]: Finished difference. Result has 315 places, 314 transitions, 658 flow [2022-11-02 20:11:21,211 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=315, PETRI_TRANSITIONS=314} [2022-11-02 20:11:21,212 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -21 predicate places. [2022-11-02 20:11:21,212 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 314 transitions, 658 flow [2022-11-02 20:11:21,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:21,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:21,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:21,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:11:21,213 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:21,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:21,214 INFO L85 PathProgramCache]: Analyzing trace with hash 433411642, now seen corresponding path program 1 times [2022-11-02 20:11:21,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:21,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623323567] [2022-11-02 20:11:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:21,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:21,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:21,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:21,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623323567] [2022-11-02 20:11:21,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623323567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:21,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:21,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:21,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474037555] [2022-11-02 20:11:21,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:21,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:21,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:21,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:21,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:21,259 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 365 [2022-11-02 20:11:21,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 314 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:21,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:21,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 365 [2022-11-02 20:11:21,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:21,484 INFO L130 PetriNetUnfolder]: 42/1130 cut-off events. [2022-11-02 20:11:21,485 INFO L131 PetriNetUnfolder]: For 7/20 co-relation queries the response was YES. [2022-11-02 20:11:21,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1263 conditions, 1130 events. 42/1130 cut-off events. For 7/20 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5986 event pairs, 7 based on Foata normal form. 4/1029 useless extension candidates. Maximal degree in co-relation 550. Up to 44 conditions per place. [2022-11-02 20:11:21,499 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 12 selfloop transitions, 2 changer transitions 0/314 dead transitions. [2022-11-02 20:11:21,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 314 transitions, 687 flow [2022-11-02 20:11:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:21,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:21,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1026 transitions. [2022-11-02 20:11:21,502 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.936986301369863 [2022-11-02 20:11:21,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1026 transitions. [2022-11-02 20:11:21,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1026 transitions. [2022-11-02 20:11:21,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:21,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1026 transitions. [2022-11-02 20:11:21,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:21,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:21,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:21,509 INFO L175 Difference]: Start difference. First operand has 315 places, 314 transitions, 658 flow. Second operand 3 states and 1026 transitions. [2022-11-02 20:11:21,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 314 transitions, 687 flow [2022-11-02 20:11:21,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 314 transitions, 687 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:11:21,516 INFO L231 Difference]: Finished difference. Result has 316 places, 313 transitions, 660 flow [2022-11-02 20:11:21,517 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=316, PETRI_TRANSITIONS=313} [2022-11-02 20:11:21,518 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -20 predicate places. [2022-11-02 20:11:21,518 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 313 transitions, 660 flow [2022-11-02 20:11:21,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:21,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:21,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:21,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:11:21,519 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:21,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:21,520 INFO L85 PathProgramCache]: Analyzing trace with hash 260840977, now seen corresponding path program 1 times [2022-11-02 20:11:21,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:21,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262082867] [2022-11-02 20:11:21,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:21,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:21,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:21,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:21,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262082867] [2022-11-02 20:11:21,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262082867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:21,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:21,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:11:21,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543847729] [2022-11-02 20:11:21,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:21,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:11:21,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:22,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:11:22,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:11:22,002 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 365 [2022-11-02 20:11:22,004 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 313 transitions, 660 flow. Second operand has 6 states, 6 states have (on average 331.8333333333333) internal successors, (1991), 6 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:22,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 365 [2022-11-02 20:11:22,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:22,213 INFO L130 PetriNetUnfolder]: 23/837 cut-off events. [2022-11-02 20:11:22,213 INFO L131 PetriNetUnfolder]: For 4/38 co-relation queries the response was YES. [2022-11-02 20:11:22,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 837 events. 23/837 cut-off events. For 4/38 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3672 event pairs, 1 based on Foata normal form. 16/780 useless extension candidates. Maximal degree in co-relation 829. Up to 29 conditions per place. [2022-11-02 20:11:22,232 INFO L137 encePairwiseOnDemand]: 360/365 looper letters, 15 selfloop transitions, 4 changer transitions 0/312 dead transitions. [2022-11-02 20:11:22,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 312 transitions, 696 flow [2022-11-02 20:11:22,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:11:22,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:11:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2000 transitions. [2022-11-02 20:11:22,236 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.91324200913242 [2022-11-02 20:11:22,236 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2000 transitions. [2022-11-02 20:11:22,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2000 transitions. [2022-11-02 20:11:22,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:22,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2000 transitions. [2022-11-02 20:11:22,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,248 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,248 INFO L175 Difference]: Start difference. First operand has 316 places, 313 transitions, 660 flow. Second operand 6 states and 2000 transitions. [2022-11-02 20:11:22,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 312 transitions, 696 flow [2022-11-02 20:11:22,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 312 transitions, 692 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:22,254 INFO L231 Difference]: Finished difference. Result has 318 places, 312 transitions, 662 flow [2022-11-02 20:11:22,255 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=662, PETRI_PLACES=318, PETRI_TRANSITIONS=312} [2022-11-02 20:11:22,257 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -18 predicate places. [2022-11-02 20:11:22,258 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 312 transitions, 662 flow [2022-11-02 20:11:22,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 331.8333333333333) internal successors, (1991), 6 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:22,259 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:22,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:11:22,259 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:22,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:22,260 INFO L85 PathProgramCache]: Analyzing trace with hash 282560985, now seen corresponding path program 1 times [2022-11-02 20:11:22,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:22,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438028237] [2022-11-02 20:11:22,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:22,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:22,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:22,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438028237] [2022-11-02 20:11:22,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438028237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:22,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:22,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:22,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968490040] [2022-11-02 20:11:22,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:22,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:22,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:22,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:22,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:22,309 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 365 [2022-11-02 20:11:22,310 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 312 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:22,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 365 [2022-11-02 20:11:22,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:22,501 INFO L130 PetriNetUnfolder]: 39/882 cut-off events. [2022-11-02 20:11:22,501 INFO L131 PetriNetUnfolder]: For 23/29 co-relation queries the response was YES. [2022-11-02 20:11:22,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 882 events. 39/882 cut-off events. For 23/29 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 4296 event pairs, 9 based on Foata normal form. 1/815 useless extension candidates. Maximal degree in co-relation 844. Up to 52 conditions per place. [2022-11-02 20:11:22,512 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 11 selfloop transitions, 2 changer transitions 0/312 dead transitions. [2022-11-02 20:11:22,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 312 transitions, 689 flow [2022-11-02 20:11:22,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:22,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1025 transitions. [2022-11-02 20:11:22,516 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9360730593607306 [2022-11-02 20:11:22,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1025 transitions. [2022-11-02 20:11:22,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1025 transitions. [2022-11-02 20:11:22,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:22,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1025 transitions. [2022-11-02 20:11:22,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 341.6666666666667) internal successors, (1025), 3 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,521 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,522 INFO L175 Difference]: Start difference. First operand has 318 places, 312 transitions, 662 flow. Second operand 3 states and 1025 transitions. [2022-11-02 20:11:22,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 312 transitions, 689 flow [2022-11-02 20:11:22,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 312 transitions, 682 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:11:22,528 INFO L231 Difference]: Finished difference. Result has 315 places, 311 transitions, 657 flow [2022-11-02 20:11:22,530 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=657, PETRI_PLACES=315, PETRI_TRANSITIONS=311} [2022-11-02 20:11:22,530 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -21 predicate places. [2022-11-02 20:11:22,530 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 311 transitions, 657 flow [2022-11-02 20:11:22,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:22,531 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:22,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:11:22,531 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:22,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:22,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1854597817, now seen corresponding path program 1 times [2022-11-02 20:11:22,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:22,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131529073] [2022-11-02 20:11:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:22,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:22,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:22,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:22,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131529073] [2022-11-02 20:11:22,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131529073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:22,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:22,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:22,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482520397] [2022-11-02 20:11:22,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:22,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:22,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:22,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:22,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:22,599 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 365 [2022-11-02 20:11:22,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 311 transitions, 657 flow. Second operand has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:22,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 365 [2022-11-02 20:11:22,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:22,836 INFO L130 PetriNetUnfolder]: 54/1052 cut-off events. [2022-11-02 20:11:22,836 INFO L131 PetriNetUnfolder]: For 7/18 co-relation queries the response was YES. [2022-11-02 20:11:22,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1052 events. 54/1052 cut-off events. For 7/18 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5462 event pairs, 21 based on Foata normal form. 1/970 useless extension candidates. Maximal degree in co-relation 1146. Up to 78 conditions per place. [2022-11-02 20:11:22,847 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 17 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2022-11-02 20:11:22,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 311 transitions, 696 flow [2022-11-02 20:11:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:22,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:22,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2022-11-02 20:11:22,850 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9168949771689497 [2022-11-02 20:11:22,851 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1004 transitions. [2022-11-02 20:11:22,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1004 transitions. [2022-11-02 20:11:22,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:22,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1004 transitions. [2022-11-02 20:11:22,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,857 INFO L175 Difference]: Start difference. First operand has 315 places, 311 transitions, 657 flow. Second operand 3 states and 1004 transitions. [2022-11-02 20:11:22,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 311 transitions, 696 flow [2022-11-02 20:11:22,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 311 transitions, 692 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:22,865 INFO L231 Difference]: Finished difference. Result has 314 places, 310 transitions, 655 flow [2022-11-02 20:11:22,866 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=314, PETRI_TRANSITIONS=310} [2022-11-02 20:11:22,866 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -22 predicate places. [2022-11-02 20:11:22,866 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 310 transitions, 655 flow [2022-11-02 20:11:22,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.3333333333333) internal successors, (994), 3 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:22,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:22,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:22,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:11:22,868 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:22,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:22,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1461734141, now seen corresponding path program 1 times [2022-11-02 20:11:22,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:22,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136462420] [2022-11-02 20:11:22,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:22,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:22,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:23,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:23,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:23,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136462420] [2022-11-02 20:11:23,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136462420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:23,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:23,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:11:23,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677139873] [2022-11-02 20:11:23,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:23,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:11:23,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:23,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:11:23,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:11:23,501 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 365 [2022-11-02 20:11:23,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 310 transitions, 655 flow. Second operand has 6 states, 6 states have (on average 332.8333333333333) internal successors, (1997), 6 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:23,518 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:23,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 365 [2022-11-02 20:11:23,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:23,754 INFO L130 PetriNetUnfolder]: 23/825 cut-off events. [2022-11-02 20:11:23,754 INFO L131 PetriNetUnfolder]: For 4/37 co-relation queries the response was YES. [2022-11-02 20:11:23,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 825 events. 23/825 cut-off events. For 4/37 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3594 event pairs, 1 based on Foata normal form. 4/768 useless extension candidates. Maximal degree in co-relation 752. Up to 25 conditions per place. [2022-11-02 20:11:23,768 INFO L137 encePairwiseOnDemand]: 360/365 looper letters, 14 selfloop transitions, 4 changer transitions 0/309 dead transitions. [2022-11-02 20:11:23,768 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 309 transitions, 689 flow [2022-11-02 20:11:23,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:11:23,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:11:23,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1999 transitions. [2022-11-02 20:11:23,773 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9127853881278539 [2022-11-02 20:11:23,773 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1999 transitions. [2022-11-02 20:11:23,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1999 transitions. [2022-11-02 20:11:23,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:23,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1999 transitions. [2022-11-02 20:11:23,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 333.1666666666667) internal successors, (1999), 6 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:23,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:23,784 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:23,784 INFO L175 Difference]: Start difference. First operand has 314 places, 310 transitions, 655 flow. Second operand 6 states and 1999 transitions. [2022-11-02 20:11:23,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 309 transitions, 689 flow [2022-11-02 20:11:23,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 309 transitions, 685 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:23,792 INFO L231 Difference]: Finished difference. Result has 316 places, 309 transitions, 657 flow [2022-11-02 20:11:23,792 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=657, PETRI_PLACES=316, PETRI_TRANSITIONS=309} [2022-11-02 20:11:23,793 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -20 predicate places. [2022-11-02 20:11:23,793 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 309 transitions, 657 flow [2022-11-02 20:11:23,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 332.8333333333333) internal successors, (1997), 6 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:23,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:23,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:23,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:11:23,794 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:23,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:23,795 INFO L85 PathProgramCache]: Analyzing trace with hash -942209370, now seen corresponding path program 1 times [2022-11-02 20:11:23,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:23,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754001861] [2022-11-02 20:11:23,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:23,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:23,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:23,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:23,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754001861] [2022-11-02 20:11:23,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754001861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:23,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:23,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:23,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646269945] [2022-11-02 20:11:23,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:23,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:23,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:23,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:23,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:23,853 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 365 [2022-11-02 20:11:23,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 309 transitions, 657 flow. Second operand has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:23,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:23,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 365 [2022-11-02 20:11:23,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:24,063 INFO L130 PetriNetUnfolder]: 59/1065 cut-off events. [2022-11-02 20:11:24,064 INFO L131 PetriNetUnfolder]: For 35/38 co-relation queries the response was YES. [2022-11-02 20:11:24,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1263 conditions, 1065 events. 59/1065 cut-off events. For 35/38 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5935 event pairs, 25 based on Foata normal form. 0/980 useless extension candidates. Maximal degree in co-relation 1198. Up to 110 conditions per place. [2022-11-02 20:11:24,075 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 17 selfloop transitions, 2 changer transitions 0/309 dead transitions. [2022-11-02 20:11:24,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 309 transitions, 696 flow [2022-11-02 20:11:24,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1004 transitions. [2022-11-02 20:11:24,078 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9168949771689497 [2022-11-02 20:11:24,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1004 transitions. [2022-11-02 20:11:24,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1004 transitions. [2022-11-02 20:11:24,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:24,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1004 transitions. [2022-11-02 20:11:24,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,085 INFO L175 Difference]: Start difference. First operand has 316 places, 309 transitions, 657 flow. Second operand 3 states and 1004 transitions. [2022-11-02 20:11:24,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 309 transitions, 696 flow [2022-11-02 20:11:24,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 309 transitions, 689 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:11:24,091 INFO L231 Difference]: Finished difference. Result has 313 places, 308 transitions, 652 flow [2022-11-02 20:11:24,092 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=652, PETRI_PLACES=313, PETRI_TRANSITIONS=308} [2022-11-02 20:11:24,092 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -23 predicate places. [2022-11-02 20:11:24,093 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 308 transitions, 652 flow [2022-11-02 20:11:24,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 331.6666666666667) internal successors, (995), 3 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:24,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:24,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:11:24,094 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:24,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:24,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1631827847, now seen corresponding path program 1 times [2022-11-02 20:11:24,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:24,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220538786] [2022-11-02 20:11:24,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:24,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:24,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:24,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220538786] [2022-11-02 20:11:24,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220538786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:24,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:24,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:24,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947724062] [2022-11-02 20:11:24,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:24,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:24,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:24,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:24,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:24,158 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 365 [2022-11-02 20:11:24,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 308 transitions, 652 flow. Second operand has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:24,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 365 [2022-11-02 20:11:24,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:24,364 INFO L130 PetriNetUnfolder]: 36/1090 cut-off events. [2022-11-02 20:11:24,364 INFO L131 PetriNetUnfolder]: For 7/12 co-relation queries the response was YES. [2022-11-02 20:11:24,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 1090 events. 36/1090 cut-off events. For 7/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5558 event pairs, 7 based on Foata normal form. 0/1016 useless extension candidates. Maximal degree in co-relation 854. Up to 32 conditions per place. [2022-11-02 20:11:24,378 INFO L137 encePairwiseOnDemand]: 363/365 looper letters, 9 selfloop transitions, 1 changer transitions 0/307 dead transitions. [2022-11-02 20:11:24,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 307 transitions, 670 flow [2022-11-02 20:11:24,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1028 transitions. [2022-11-02 20:11:24,381 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9388127853881278 [2022-11-02 20:11:24,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1028 transitions. [2022-11-02 20:11:24,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1028 transitions. [2022-11-02 20:11:24,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:24,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1028 transitions. [2022-11-02 20:11:24,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,388 INFO L175 Difference]: Start difference. First operand has 313 places, 308 transitions, 652 flow. Second operand 3 states and 1028 transitions. [2022-11-02 20:11:24,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 307 transitions, 670 flow [2022-11-02 20:11:24,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 307 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:24,394 INFO L231 Difference]: Finished difference. Result has 312 places, 307 transitions, 648 flow [2022-11-02 20:11:24,395 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=648, PETRI_PLACES=312, PETRI_TRANSITIONS=307} [2022-11-02 20:11:24,395 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -24 predicate places. [2022-11-02 20:11:24,396 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 307 transitions, 648 flow [2022-11-02 20:11:24,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:24,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:24,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:11:24,397 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:24,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:24,398 INFO L85 PathProgramCache]: Analyzing trace with hash 69538909, now seen corresponding path program 1 times [2022-11-02 20:11:24,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:24,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472056055] [2022-11-02 20:11:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:24,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:24,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:24,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:24,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:24,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472056055] [2022-11-02 20:11:24,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472056055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:24,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:24,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:24,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029164496] [2022-11-02 20:11:24,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:24,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:24,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:24,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:24,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:24,462 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 365 [2022-11-02 20:11:24,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 307 transitions, 648 flow. Second operand has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:24,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 365 [2022-11-02 20:11:24,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:24,641 INFO L130 PetriNetUnfolder]: 31/852 cut-off events. [2022-11-02 20:11:24,641 INFO L131 PetriNetUnfolder]: For 15/19 co-relation queries the response was YES. [2022-11-02 20:11:24,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 960 conditions, 852 events. 31/852 cut-off events. For 15/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3858 event pairs, 9 based on Foata normal form. 4/802 useless extension candidates. Maximal degree in co-relation 934. Up to 44 conditions per place. [2022-11-02 20:11:24,652 INFO L137 encePairwiseOnDemand]: 363/365 looper letters, 7 selfloop transitions, 0 changer transitions 5/306 dead transitions. [2022-11-02 20:11:24,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 306 transitions, 664 flow [2022-11-02 20:11:24,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:24,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:24,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1027 transitions. [2022-11-02 20:11:24,655 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9378995433789954 [2022-11-02 20:11:24,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1027 transitions. [2022-11-02 20:11:24,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1027 transitions. [2022-11-02 20:11:24,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:24,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1027 transitions. [2022-11-02 20:11:24,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,661 INFO L175 Difference]: Start difference. First operand has 312 places, 307 transitions, 648 flow. Second operand 3 states and 1027 transitions. [2022-11-02 20:11:24,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 306 transitions, 664 flow [2022-11-02 20:11:24,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 306 transitions, 663 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:11:24,667 INFO L231 Difference]: Finished difference. Result has 312 places, 301 transitions, 633 flow [2022-11-02 20:11:24,668 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=633, PETRI_PLACES=312, PETRI_TRANSITIONS=301} [2022-11-02 20:11:24,668 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -24 predicate places. [2022-11-02 20:11:24,668 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 301 transitions, 633 flow [2022-11-02 20:11:24,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:24,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:24,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:11:24,669 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:24,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:24,670 INFO L85 PathProgramCache]: Analyzing trace with hash 534943292, now seen corresponding path program 1 times [2022-11-02 20:11:24,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:24,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897168816] [2022-11-02 20:11:24,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:24,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:24,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:24,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:24,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897168816] [2022-11-02 20:11:24,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897168816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:24,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:24,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:24,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879350559] [2022-11-02 20:11:24,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:24,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:24,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:24,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:24,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:24,726 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 365 [2022-11-02 20:11:24,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 301 transitions, 633 flow. Second operand has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:24,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 365 [2022-11-02 20:11:24,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:24,934 INFO L130 PetriNetUnfolder]: 48/1117 cut-off events. [2022-11-02 20:11:24,935 INFO L131 PetriNetUnfolder]: For 12/14 co-relation queries the response was YES. [2022-11-02 20:11:24,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 1117 events. 48/1117 cut-off events. For 12/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6074 event pairs, 13 based on Foata normal form. 0/1045 useless extension candidates. Maximal degree in co-relation 1261. Up to 52 conditions per place. [2022-11-02 20:11:24,950 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 15 selfloop transitions, 2 changer transitions 0/301 dead transitions. [2022-11-02 20:11:24,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 301 transitions, 668 flow [2022-11-02 20:11:24,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:24,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2022-11-02 20:11:24,953 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9223744292237442 [2022-11-02 20:11:24,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2022-11-02 20:11:24,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2022-11-02 20:11:24,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:24,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2022-11-02 20:11:24,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,960 INFO L175 Difference]: Start difference. First operand has 312 places, 301 transitions, 633 flow. Second operand 3 states and 1010 transitions. [2022-11-02 20:11:24,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 301 transitions, 668 flow [2022-11-02 20:11:24,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 301 transitions, 668 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:11:24,966 INFO L231 Difference]: Finished difference. Result has 306 places, 300 transitions, 635 flow [2022-11-02 20:11:24,966 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=635, PETRI_PLACES=306, PETRI_TRANSITIONS=300} [2022-11-02 20:11:24,967 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -30 predicate places. [2022-11-02 20:11:24,967 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 300 transitions, 635 flow [2022-11-02 20:11:24,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:24,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:24,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:11:24,969 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err7ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:11:24,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:24,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1423303781, now seen corresponding path program 1 times [2022-11-02 20:11:24,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:24,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701472847] [2022-11-02 20:11:24,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:24,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:25,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:25,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:25,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701472847] [2022-11-02 20:11:25,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701472847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:25,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:25,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:25,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70767318] [2022-11-02 20:11:25,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:25,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:25,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:25,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:25,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:25,039 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 365 [2022-11-02 20:11:25,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 300 transitions, 635 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:25,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 365 [2022-11-02 20:11:25,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:25,241 INFO L130 PetriNetUnfolder]: 44/984 cut-off events. [2022-11-02 20:11:25,241 INFO L131 PetriNetUnfolder]: For 34/37 co-relation queries the response was YES. [2022-11-02 20:11:25,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 984 events. 44/984 cut-off events. For 34/37 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5010 event pairs, 13 based on Foata normal form. 0/921 useless extension candidates. Maximal degree in co-relation 1128. Up to 66 conditions per place. [2022-11-02 20:11:25,253 INFO L137 encePairwiseOnDemand]: 362/365 looper letters, 0 selfloop transitions, 0 changer transitions 300/300 dead transitions. [2022-11-02 20:11:25,253 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 300 transitions, 670 flow [2022-11-02 20:11:25,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:25,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:25,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1010 transitions. [2022-11-02 20:11:25,257 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9223744292237442 [2022-11-02 20:11:25,257 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1010 transitions. [2022-11-02 20:11:25,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1010 transitions. [2022-11-02 20:11:25,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:25,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1010 transitions. [2022-11-02 20:11:25,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 365.0) internal successors, (1460), 4 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,263 INFO L175 Difference]: Start difference. First operand has 306 places, 300 transitions, 635 flow. Second operand 3 states and 1010 transitions. [2022-11-02 20:11:25,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 300 transitions, 670 flow [2022-11-02 20:11:25,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 300 transitions, 666 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:25,268 INFO L231 Difference]: Finished difference. Result has 305 places, 0 transitions, 0 flow [2022-11-02 20:11:25,269 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=305, PETRI_TRANSITIONS=0} [2022-11-02 20:11:25,269 INFO L287 CegarLoopForPetriNet]: 336 programPoint places, -31 predicate places. [2022-11-02 20:11:25,269 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 0 transitions, 0 flow [2022-11-02 20:11:25,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2022-11-02 20:11:25,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-11-02 20:11:25,273 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-11-02 20:11:25,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-11-02 20:11:25,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-11-02 20:11:25,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-11-02 20:11:25,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-11-02 20:11:25,274 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-11-02 20:11:25,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-11-02 20:11:25,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-11-02 20:11:25,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-11-02 20:11:25,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-11-02 20:11:25,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-11-02 20:11:25,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-11-02 20:11:25,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-11-02 20:11:25,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-11-02 20:11:25,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-11-02 20:11:25,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-11-02 20:11:25,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-11-02 20:11:25,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-11-02 20:11:25,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-11-02 20:11:25,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-11-02 20:11:25,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-11-02 20:11:25,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-11-02 20:11:25,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-11-02 20:11:25,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-11-02 20:11:25,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-11-02 20:11:25,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-11-02 20:11:25,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-11-02 20:11:25,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-11-02 20:11:25,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-11-02 20:11:25,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-11-02 20:11:25,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2022-11-02 20:11:25,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 53 remaining) [2022-11-02 20:11:25,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 53 remaining) [2022-11-02 20:11:25,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-11-02 20:11:25,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-11-02 20:11:25,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-11-02 20:11:25,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-11-02 20:11:25,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-11-02 20:11:25,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-11-02 20:11:25,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-11-02 20:11:25,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-11-02 20:11:25,281 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-11-02 20:11:25,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-11-02 20:11:25,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-11-02 20:11:25,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-11-02 20:11:25,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-11-02 20:11:25,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-11-02 20:11:25,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-11-02 20:11:25,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-11-02 20:11:25,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-11-02 20:11:25,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-11-02 20:11:25,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:11:25,284 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:25,292 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 20:11:25,292 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:11:25,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:11:25 BasicIcfg [2022-11-02 20:11:25,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:11:25,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:11:25,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:11:25,301 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:11:25,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:11:17" (3/4) ... [2022-11-02 20:11:25,304 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:11:25,310 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 20:11:25,311 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 20:11:25,318 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-02 20:11:25,318 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 20:11:25,319 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:11:25,319 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 20:11:25,380 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:11:25,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:11:25,381 INFO L158 Benchmark]: Toolchain (without parser) took 9435.24ms. Allocated memory was 125.8MB in the beginning and 262.1MB in the end (delta: 136.3MB). Free memory was 91.6MB in the beginning and 156.4MB in the end (delta: -64.8MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2022-11-02 20:11:25,381 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 55.2MB in the beginning and 55.1MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:11:25,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.64ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 101.2MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 20:11:25,382 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.43ms. Allocated memory is still 125.8MB. Free memory was 101.2MB in the beginning and 98.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:11:25,383 INFO L158 Benchmark]: Boogie Preprocessor took 62.36ms. Allocated memory is still 125.8MB. Free memory was 98.5MB in the beginning and 97.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:11:25,383 INFO L158 Benchmark]: RCFGBuilder took 741.34ms. Allocated memory is still 125.8MB. Free memory was 97.0MB in the beginning and 72.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-02 20:11:25,383 INFO L158 Benchmark]: TraceAbstraction took 8120.47ms. Allocated memory was 125.8MB in the beginning and 262.1MB in the end (delta: 136.3MB). Free memory was 71.8MB in the beginning and 159.5MB in the end (delta: -87.7MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2022-11-02 20:11:25,384 INFO L158 Benchmark]: Witness Printer took 79.72ms. Allocated memory is still 262.1MB. Free memory was 159.5MB in the beginning and 156.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:11:25,391 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 55.2MB in the beginning and 55.1MB in the end (delta: 27.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.64ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 101.2MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.43ms. Allocated memory is still 125.8MB. Free memory was 101.2MB in the beginning and 98.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.36ms. Allocated memory is still 125.8MB. Free memory was 98.5MB in the beginning and 97.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 741.34ms. Allocated memory is still 125.8MB. Free memory was 97.0MB in the beginning and 72.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8120.47ms. Allocated memory was 125.8MB in the beginning and 262.1MB in the end (delta: 136.3MB). Free memory was 71.8MB in the beginning and 159.5MB in the end (delta: -87.7MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * Witness Printer took 79.72ms. Allocated memory is still 262.1MB. Free memory was 159.5MB in the beginning and 156.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: 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 5 procedures, 547 locations, 53 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: 7.9s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 229 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 469 IncrementalHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 229 mSDtfsCounter, 469 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=702occurred in iteration=0, InterpolantAutomatonStates: 72, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 2005 NumberOfCodeBlocks, 2005 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1983 ConstructedInterpolants, 0 QuantifiedInterpolants, 2185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 33 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:11:25,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c179419-8098-4ce0-9c19-3612f4826318/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE