./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8 --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 1a172ae6dd3a5207c1a2580ce55cc24497fcf78586be62b7482a56f18aa6beb2 --- 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-e04fb08 [2022-11-16 12:33:14,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:33:14,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:33:14,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:33:14,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:33:14,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:33:14,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:33:14,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:33:14,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:33:14,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:33:14,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:33:14,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:33:14,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:33:14,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:33:14,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:33:14,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:33:14,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:33:14,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:33:14,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:33:14,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:33:14,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:33:14,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:33:14,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:33:14,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:33:14,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:33:14,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:33:14,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:33:14,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:33:14,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:33:14,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:33:14,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:33:14,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:33:14,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:33:14,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:33:14,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:33:14,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:33:14,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:33:14,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:33:14,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:33:14,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:33:14,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:33:14,467 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:33:14,495 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:33:14,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:33:14,495 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:33:14,495 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:33:14,496 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:33:14,496 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:33:14,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:33:14,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:33:14,497 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:33:14,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:33:14,498 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:33:14,498 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:33:14,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:33:14,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:33:14,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:33:14,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:33:14,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:33:14,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:33:14,499 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:33:14,499 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:33:14,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:33:14,500 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:33:14,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:33:14,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:33:14,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:33:14,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:33:14,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:33:14,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:33:14,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:33:14,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:33:14,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:33:14,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:33:14,509 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:33:14,509 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:33:14,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:33:14,509 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_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a172ae6dd3a5207c1a2580ce55cc24497fcf78586be62b7482a56f18aa6beb2 [2022-11-16 12:33:14,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:33:14,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:33:14,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:33:14,898 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:33:14,899 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:33:14,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2022-11-16 12:33:15,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/data/868736556/182dbc2b06b74f05a9aefe2be5286b68/FLAG157c4a160 [2022-11-16 12:33:15,542 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:33:15,543 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/sv-benchmarks/c/weaver/array-eq-symm.wvr.c [2022-11-16 12:33:15,550 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/data/868736556/182dbc2b06b74f05a9aefe2be5286b68/FLAG157c4a160 [2022-11-16 12:33:15,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/data/868736556/182dbc2b06b74f05a9aefe2be5286b68 [2022-11-16 12:33:15,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:33:15,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:33:15,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:15,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:33:15,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:33:15,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:15" (1/1) ... [2022-11-16 12:33:15,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db09eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:15, skipping insertion in model container [2022-11-16 12:33:15,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:15" (1/1) ... [2022-11-16 12:33:15,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:33:15,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:33:16,194 WARN L229 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_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/sv-benchmarks/c/weaver/array-eq-symm.wvr.c[2251,2264] [2022-11-16 12:33:16,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:16,212 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:33:16,244 WARN L229 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_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/sv-benchmarks/c/weaver/array-eq-symm.wvr.c[2251,2264] [2022-11-16 12:33:16,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:33:16,266 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:33:16,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16 WrapperNode [2022-11-16 12:33:16,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:33:16,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:16,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:33:16,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:33:16,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,356 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 160 [2022-11-16 12:33:16,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:33:16,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:33:16,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:33:16,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:33:16,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,435 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:33:16,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:33:16,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:33:16,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:33:16,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (1/1) ... [2022-11-16 12:33:16,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:33:16,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:33:16,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:33:16,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:33:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:33:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:33:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:33:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:33:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:33:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:33:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:33:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:33:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:33:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:33:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:33:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:33:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:33:16,563 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:33:16,713 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:33:16,715 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:33:17,330 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:33:17,341 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:33:17,342 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 12:33:17,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:17 BoogieIcfgContainer [2022-11-16 12:33:17,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:33:17,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:33:17,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:33:17,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:33:17,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:33:15" (1/3) ... [2022-11-16 12:33:17,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5326db2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:17, skipping insertion in model container [2022-11-16 12:33:17,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:16" (2/3) ... [2022-11-16 12:33:17,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5326db2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:17, skipping insertion in model container [2022-11-16 12:33:17,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:17" (3/3) ... [2022-11-16 12:33:17,354 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-symm.wvr.c [2022-11-16 12:33:17,363 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:33:17,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:33:17,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-16 12:33:17,374 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:33:17,541 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:33:17,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 333 transitions, 682 flow [2022-11-16 12:33:17,766 INFO L130 PetriNetUnfolder]: 17/331 cut-off events. [2022-11-16 12:33:17,766 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:33:17,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 331 events. 17/331 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 592 event pairs, 0 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 223. Up to 3 conditions per place. [2022-11-16 12:33:17,776 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 333 transitions, 682 flow [2022-11-16 12:33:17,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 313 transitions, 638 flow [2022-11-16 12:33:17,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:33:17,804 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;@7d32c90b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:33:17,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2022-11-16 12:33:17,811 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-16 12:33:17,811 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:33:17,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:17,812 INFO L209 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] [2022-11-16 12:33:17,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:17,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1014690004, now seen corresponding path program 1 times [2022-11-16 12:33:17,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:17,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939404951] [2022-11-16 12:33:17,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:17,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:18,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:18,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939404951] [2022-11-16 12:33:18,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939404951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:18,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:18,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:18,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533724018] [2022-11-16 12:33:18,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:18,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:18,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:18,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:18,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:18,154 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 333 [2022-11-16 12:33:18,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 313 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:18,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 333 [2022-11-16 12:33:18,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:18,466 INFO L130 PetriNetUnfolder]: 38/661 cut-off events. [2022-11-16 12:33:18,466 INFO L131 PetriNetUnfolder]: For 23/25 co-relation queries the response was YES. [2022-11-16 12:33:18,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 661 events. 38/661 cut-off events. For 23/25 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2870 event pairs, 15 based on Foata normal form. 16/548 useless extension candidates. Maximal degree in co-relation 476. Up to 48 conditions per place. [2022-11-16 12:33:18,478 INFO L137 encePairwiseOnDemand]: 322/333 looper letters, 16 selfloop transitions, 2 changer transitions 4/304 dead transitions. [2022-11-16 12:33:18,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 304 transitions, 656 flow [2022-11-16 12:33:18,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:18,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:18,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 939 transitions. [2022-11-16 12:33:18,511 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.93993993993994 [2022-11-16 12:33:18,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 939 transitions. [2022-11-16 12:33:18,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 939 transitions. [2022-11-16 12:33:18,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:18,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 939 transitions. [2022-11-16 12:33:18,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,544 INFO L175 Difference]: Start difference. First operand has 304 places, 313 transitions, 638 flow. Second operand 3 states and 939 transitions. [2022-11-16 12:33:18,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 304 transitions, 656 flow [2022-11-16 12:33:18,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 304 transitions, 648 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:33:18,569 INFO L231 Difference]: Finished difference. Result has 301 places, 300 transitions, 608 flow [2022-11-16 12:33:18,572 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=301, PETRI_TRANSITIONS=300} [2022-11-16 12:33:18,578 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -3 predicate places. [2022-11-16 12:33:18,579 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 300 transitions, 608 flow [2022-11-16 12:33:18,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,580 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:18,580 INFO L209 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] [2022-11-16 12:33:18,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:33:18,582 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:18,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:18,583 INFO L85 PathProgramCache]: Analyzing trace with hash -823178832, now seen corresponding path program 1 times [2022-11-16 12:33:18,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:18,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828841960] [2022-11-16 12:33:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:18,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:18,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:18,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:18,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828841960] [2022-11-16 12:33:18,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828841960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:18,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:18,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:18,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132761906] [2022-11-16 12:33:18,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:18,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:18,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:18,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:18,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:18,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 333 [2022-11-16 12:33:18,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 300 transitions, 608 flow. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,690 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:18,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 333 [2022-11-16 12:33:18,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:18,927 INFO L130 PetriNetUnfolder]: 43/681 cut-off events. [2022-11-16 12:33:18,927 INFO L131 PetriNetUnfolder]: For 9/20 co-relation queries the response was YES. [2022-11-16 12:33:18,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 681 events. 43/681 cut-off events. For 9/20 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3179 event pairs, 15 based on Foata normal form. 0/550 useless extension candidates. Maximal degree in co-relation 710. Up to 51 conditions per place. [2022-11-16 12:33:18,934 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 16 selfloop transitions, 2 changer transitions 0/299 dead transitions. [2022-11-16 12:33:18,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 299 transitions, 642 flow [2022-11-16 12:33:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2022-11-16 12:33:18,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9319319319319319 [2022-11-16 12:33:18,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 931 transitions. [2022-11-16 12:33:18,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 931 transitions. [2022-11-16 12:33:18,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:18,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 931 transitions. [2022-11-16 12:33:18,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,945 INFO L175 Difference]: Start difference. First operand has 301 places, 300 transitions, 608 flow. Second operand 3 states and 931 transitions. [2022-11-16 12:33:18,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 299 transitions, 642 flow [2022-11-16 12:33:18,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 299 transitions, 638 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:18,955 INFO L231 Difference]: Finished difference. Result has 296 places, 299 transitions, 606 flow [2022-11-16 12:33:18,956 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=606, PETRI_PLACES=296, PETRI_TRANSITIONS=299} [2022-11-16 12:33:18,958 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -8 predicate places. [2022-11-16 12:33:18,958 INFO L495 AbstractCegarLoop]: Abstraction has has 296 places, 299 transitions, 606 flow [2022-11-16 12:33:18,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:18,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:18,961 INFO L209 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] [2022-11-16 12:33:18,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:33:18,961 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:18,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:18,974 INFO L85 PathProgramCache]: Analyzing trace with hash -821646170, now seen corresponding path program 1 times [2022-11-16 12:33:18,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:18,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983888657] [2022-11-16 12:33:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:18,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:19,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:19,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983888657] [2022-11-16 12:33:19,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983888657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:19,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:19,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:19,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996502396] [2022-11-16 12:33:19,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:19,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:19,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:19,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:19,064 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 333 [2022-11-16 12:33:19,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 299 transitions, 606 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:19,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 333 [2022-11-16 12:33:19,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:19,242 INFO L130 PetriNetUnfolder]: 29/589 cut-off events. [2022-11-16 12:33:19,243 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-16 12:33:19,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 589 events. 29/589 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2329 event pairs, 8 based on Foata normal form. 0/489 useless extension candidates. Maximal degree in co-relation 586. Up to 27 conditions per place. [2022-11-16 12:33:19,250 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 11 selfloop transitions, 1 changer transitions 0/296 dead transitions. [2022-11-16 12:33:19,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 296 transitions, 624 flow [2022-11-16 12:33:19,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 936 transitions. [2022-11-16 12:33:19,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9369369369369369 [2022-11-16 12:33:19,255 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 936 transitions. [2022-11-16 12:33:19,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 936 transitions. [2022-11-16 12:33:19,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:19,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 936 transitions. [2022-11-16 12:33:19,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,265 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,265 INFO L175 Difference]: Start difference. First operand has 296 places, 299 transitions, 606 flow. Second operand 3 states and 936 transitions. [2022-11-16 12:33:19,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 296 transitions, 624 flow [2022-11-16 12:33:19,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 296 transitions, 620 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:19,274 INFO L231 Difference]: Finished difference. Result has 293 places, 296 transitions, 598 flow [2022-11-16 12:33:19,275 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=596, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=293, PETRI_TRANSITIONS=296} [2022-11-16 12:33:19,277 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -11 predicate places. [2022-11-16 12:33:19,278 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 296 transitions, 598 flow [2022-11-16 12:33:19,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,279 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:19,279 INFO L209 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] [2022-11-16 12:33:19,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:33:19,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:19,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:19,281 INFO L85 PathProgramCache]: Analyzing trace with hash 683130443, now seen corresponding path program 1 times [2022-11-16 12:33:19,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:19,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370913065] [2022-11-16 12:33:19,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:19,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:19,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:19,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370913065] [2022-11-16 12:33:19,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370913065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:19,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:19,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:19,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717071619] [2022-11-16 12:33:19,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:19,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:19,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:19,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:19,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:19,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 333 [2022-11-16 12:33:19,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 296 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:19,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 333 [2022-11-16 12:33:19,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:19,567 INFO L130 PetriNetUnfolder]: 36/579 cut-off events. [2022-11-16 12:33:19,567 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-16 12:33:19,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 579 events. 36/579 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2275 event pairs, 15 based on Foata normal form. 0/483 useless extension candidates. Maximal degree in co-relation 598. Up to 49 conditions per place. [2022-11-16 12:33:19,573 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 13 selfloop transitions, 2 changer transitions 0/295 dead transitions. [2022-11-16 12:33:19,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 295 transitions, 626 flow [2022-11-16 12:33:19,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:19,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:19,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2022-11-16 12:33:19,577 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9379379379379379 [2022-11-16 12:33:19,577 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 937 transitions. [2022-11-16 12:33:19,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 937 transitions. [2022-11-16 12:33:19,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:19,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 937 transitions. [2022-11-16 12:33:19,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.3333333333333) internal successors, (937), 3 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,592 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,592 INFO L175 Difference]: Start difference. First operand has 293 places, 296 transitions, 598 flow. Second operand 3 states and 937 transitions. [2022-11-16 12:33:19,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 295 transitions, 626 flow [2022-11-16 12:33:19,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 295 transitions, 625 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:33:19,602 INFO L231 Difference]: Finished difference. Result has 293 places, 295 transitions, 599 flow [2022-11-16 12:33:19,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=599, PETRI_PLACES=293, PETRI_TRANSITIONS=295} [2022-11-16 12:33:19,606 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -11 predicate places. [2022-11-16 12:33:19,612 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 295 transitions, 599 flow [2022-11-16 12:33:19,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:19,613 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:19,613 INFO L209 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] [2022-11-16 12:33:19,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:33:19,614 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:19,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:19,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1826745883, now seen corresponding path program 1 times [2022-11-16 12:33:19,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:19,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139793935] [2022-11-16 12:33:19,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:19,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:20,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:20,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139793935] [2022-11-16 12:33:20,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139793935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:20,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:20,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:20,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887539831] [2022-11-16 12:33:20,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:20,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:20,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:20,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:20,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:20,342 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 333 [2022-11-16 12:33:20,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 295 transitions, 599 flow. Second operand has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:20,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:20,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 333 [2022-11-16 12:33:20,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:22,372 INFO L130 PetriNetUnfolder]: 2289/7102 cut-off events. [2022-11-16 12:33:22,372 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-16 12:33:22,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10568 conditions, 7102 events. 2289/7102 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 66578 event pairs, 2112 based on Foata normal form. 0/5765 useless extension candidates. Maximal degree in co-relation 10529. Up to 3437 conditions per place. [2022-11-16 12:33:22,435 INFO L137 encePairwiseOnDemand]: 321/333 looper letters, 62 selfloop transitions, 10 changer transitions 0/293 dead transitions. [2022-11-16 12:33:22,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 293 transitions, 739 flow [2022-11-16 12:33:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:33:22,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:33:22,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1568 transitions. [2022-11-16 12:33:22,441 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7847847847847848 [2022-11-16 12:33:22,441 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1568 transitions. [2022-11-16 12:33:22,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1568 transitions. [2022-11-16 12:33:22,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:22,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1568 transitions. [2022-11-16 12:33:22,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 261.3333333333333) internal successors, (1568), 6 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,454 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,454 INFO L175 Difference]: Start difference. First operand has 293 places, 295 transitions, 599 flow. Second operand 6 states and 1568 transitions. [2022-11-16 12:33:22,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 293 transitions, 739 flow [2022-11-16 12:33:22,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 293 transitions, 735 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:22,464 INFO L231 Difference]: Finished difference. Result has 294 places, 293 transitions, 611 flow [2022-11-16 12:33:22,464 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=611, PETRI_PLACES=294, PETRI_TRANSITIONS=293} [2022-11-16 12:33:22,467 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -10 predicate places. [2022-11-16 12:33:22,468 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 293 transitions, 611 flow [2022-11-16 12:33:22,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,469 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:22,470 INFO L209 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] [2022-11-16 12:33:22,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:33:22,470 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1878510047, now seen corresponding path program 1 times [2022-11-16 12:33:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:22,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797818018] [2022-11-16 12:33:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:22,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:22,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:22,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797818018] [2022-11-16 12:33:22,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797818018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:22,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:22,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:22,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727333913] [2022-11-16 12:33:22,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:22,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:22,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:22,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:22,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:22,549 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 333 [2022-11-16 12:33:22,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 293 transitions, 611 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:22,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 333 [2022-11-16 12:33:22,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:22,666 INFO L130 PetriNetUnfolder]: 32/595 cut-off events. [2022-11-16 12:33:22,666 INFO L131 PetriNetUnfolder]: For 7/12 co-relation queries the response was YES. [2022-11-16 12:33:22,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 595 events. 32/595 cut-off events. For 7/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2487 event pairs, 8 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 611. Up to 29 conditions per place. [2022-11-16 12:33:22,681 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 11 selfloop transitions, 1 changer transitions 0/290 dead transitions. [2022-11-16 12:33:22,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 290 transitions, 629 flow [2022-11-16 12:33:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:22,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:22,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 936 transitions. [2022-11-16 12:33:22,685 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9369369369369369 [2022-11-16 12:33:22,685 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 936 transitions. [2022-11-16 12:33:22,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 936 transitions. [2022-11-16 12:33:22,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:22,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 936 transitions. [2022-11-16 12:33:22,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,695 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,695 INFO L175 Difference]: Start difference. First operand has 294 places, 293 transitions, 611 flow. Second operand 3 states and 936 transitions. [2022-11-16 12:33:22,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 290 transitions, 629 flow [2022-11-16 12:33:22,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 290 transitions, 609 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:33:22,702 INFO L231 Difference]: Finished difference. Result has 288 places, 290 transitions, 587 flow [2022-11-16 12:33:22,702 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=587, PETRI_PLACES=288, PETRI_TRANSITIONS=290} [2022-11-16 12:33:22,705 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -16 predicate places. [2022-11-16 12:33:22,705 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 290 transitions, 587 flow [2022-11-16 12:33:22,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:22,706 INFO L209 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] [2022-11-16 12:33:22,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:33:22,707 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:22,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:22,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1304918206, now seen corresponding path program 1 times [2022-11-16 12:33:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:22,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137499962] [2022-11-16 12:33:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:22,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:22,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:22,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:22,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137499962] [2022-11-16 12:33:22,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137499962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:22,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:22,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:22,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37800876] [2022-11-16 12:33:22,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:22,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:22,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:22,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:22,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:22,801 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 333 [2022-11-16 12:33:22,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 290 transitions, 587 flow. Second operand has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:22,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 333 [2022-11-16 12:33:22,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:22,959 INFO L130 PetriNetUnfolder]: 36/559 cut-off events. [2022-11-16 12:33:22,959 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-16 12:33:22,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 559 events. 36/559 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2206 event pairs, 15 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 579. Up to 49 conditions per place. [2022-11-16 12:33:22,964 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 13 selfloop transitions, 2 changer transitions 0/289 dead transitions. [2022-11-16 12:33:22,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 289 transitions, 615 flow [2022-11-16 12:33:22,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:22,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 937 transitions. [2022-11-16 12:33:22,968 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9379379379379379 [2022-11-16 12:33:22,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 937 transitions. [2022-11-16 12:33:22,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 937 transitions. [2022-11-16 12:33:22,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:22,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 937 transitions. [2022-11-16 12:33:22,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.3333333333333) internal successors, (937), 3 states have internal predecessors, (937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,975 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,975 INFO L175 Difference]: Start difference. First operand has 288 places, 290 transitions, 587 flow. Second operand 3 states and 937 transitions. [2022-11-16 12:33:22,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 289 transitions, 615 flow [2022-11-16 12:33:22,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 289 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:33:22,987 INFO L231 Difference]: Finished difference. Result has 288 places, 289 transitions, 588 flow [2022-11-16 12:33:22,988 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=288, PETRI_TRANSITIONS=289} [2022-11-16 12:33:22,988 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -16 predicate places. [2022-11-16 12:33:22,989 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 289 transitions, 588 flow [2022-11-16 12:33:22,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.3333333333333) internal successors, (925), 3 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:22,989 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:22,990 INFO L209 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] [2022-11-16 12:33:22,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:33:22,990 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:22,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:22,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1305162347, now seen corresponding path program 1 times [2022-11-16 12:33:22,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:22,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692350497] [2022-11-16 12:33:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:23,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:23,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:23,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692350497] [2022-11-16 12:33:23,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692350497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:23,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:23,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:23,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366014428] [2022-11-16 12:33:23,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:23,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:23,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:23,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:23,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:23,068 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 333 [2022-11-16 12:33:23,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 289 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:23,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 333 [2022-11-16 12:33:23,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:23,171 INFO L130 PetriNetUnfolder]: 27/426 cut-off events. [2022-11-16 12:33:23,171 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:33:23,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493 conditions, 426 events. 27/426 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1479 event pairs, 9 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 454. Up to 34 conditions per place. [2022-11-16 12:33:23,175 INFO L137 encePairwiseOnDemand]: 325/333 looper letters, 18 selfloop transitions, 2 changer transitions 0/284 dead transitions. [2022-11-16 12:33:23,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 284 transitions, 619 flow [2022-11-16 12:33:23,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:23,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:23,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 920 transitions. [2022-11-16 12:33:23,179 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9209209209209209 [2022-11-16 12:33:23,179 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 920 transitions. [2022-11-16 12:33:23,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 920 transitions. [2022-11-16 12:33:23,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:23,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 920 transitions. [2022-11-16 12:33:23,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.6666666666667) internal successors, (920), 3 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,191 INFO L175 Difference]: Start difference. First operand has 288 places, 289 transitions, 588 flow. Second operand 3 states and 920 transitions. [2022-11-16 12:33:23,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 284 transitions, 619 flow [2022-11-16 12:33:23,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 284 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:23,199 INFO L231 Difference]: Finished difference. Result has 282 places, 283 transitions, 576 flow [2022-11-16 12:33:23,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=576, PETRI_PLACES=282, PETRI_TRANSITIONS=283} [2022-11-16 12:33:23,202 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -22 predicate places. [2022-11-16 12:33:23,202 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 283 transitions, 576 flow [2022-11-16 12:33:23,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.0) internal successors, (897), 3 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,203 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:23,204 INFO L209 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] [2022-11-16 12:33:23,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:33:23,204 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:23,205 INFO L85 PathProgramCache]: Analyzing trace with hash -274364446, now seen corresponding path program 1 times [2022-11-16 12:33:23,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:23,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864852963] [2022-11-16 12:33:23,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:23,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:23,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:23,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:23,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864852963] [2022-11-16 12:33:23,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864852963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:23,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:23,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:23,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702367982] [2022-11-16 12:33:23,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:23,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:23,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:23,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:23,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:23,277 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 333 [2022-11-16 12:33:23,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 283 transitions, 576 flow. Second operand has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:23,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 333 [2022-11-16 12:33:23,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:23,364 INFO L130 PetriNetUnfolder]: 24/348 cut-off events. [2022-11-16 12:33:23,365 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 12:33:23,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 348 events. 24/348 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1077 event pairs, 3 based on Foata normal form. 1/318 useless extension candidates. Maximal degree in co-relation 362. Up to 32 conditions per place. [2022-11-16 12:33:23,368 INFO L137 encePairwiseOnDemand]: 325/333 looper letters, 15 selfloop transitions, 2 changer transitions 5/278 dead transitions. [2022-11-16 12:33:23,368 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 278 transitions, 605 flow [2022-11-16 12:33:23,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 919 transitions. [2022-11-16 12:33:23,371 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.91991991991992 [2022-11-16 12:33:23,372 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 919 transitions. [2022-11-16 12:33:23,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 919 transitions. [2022-11-16 12:33:23,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:23,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 919 transitions. [2022-11-16 12:33:23,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 306.3333333333333) internal successors, (919), 3 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,378 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,379 INFO L175 Difference]: Start difference. First operand has 282 places, 283 transitions, 576 flow. Second operand 3 states and 919 transitions. [2022-11-16 12:33:23,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 278 transitions, 605 flow [2022-11-16 12:33:23,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 278 transitions, 601 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:23,386 INFO L231 Difference]: Finished difference. Result has 276 places, 272 transitions, 553 flow [2022-11-16 12:33:23,386 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=553, PETRI_PLACES=276, PETRI_TRANSITIONS=272} [2022-11-16 12:33:23,387 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -28 predicate places. [2022-11-16 12:33:23,388 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 272 transitions, 553 flow [2022-11-16 12:33:23,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:23,389 INFO L209 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] [2022-11-16 12:33:23,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:33:23,389 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:23,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:23,390 INFO L85 PathProgramCache]: Analyzing trace with hash -524389823, now seen corresponding path program 1 times [2022-11-16 12:33:23,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:23,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374300616] [2022-11-16 12:33:23,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:23,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:23,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:23,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:23,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374300616] [2022-11-16 12:33:23,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374300616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:23,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:23,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:33:23,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130005932] [2022-11-16 12:33:23,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:23,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:23,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:23,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:23,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:23,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 333 [2022-11-16 12:33:23,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 272 transitions, 553 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:23,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 333 [2022-11-16 12:33:23,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:23,546 INFO L130 PetriNetUnfolder]: 19/336 cut-off events. [2022-11-16 12:33:23,546 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:33:23,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 336 events. 19/336 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 788 event pairs, 6 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 343. Up to 22 conditions per place. [2022-11-16 12:33:23,549 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 10 selfloop transitions, 3 changer transitions 0/274 dead transitions. [2022-11-16 12:33:23,549 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 274 transitions, 584 flow [2022-11-16 12:33:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:23,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2022-11-16 12:33:23,553 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9479479479479479 [2022-11-16 12:33:23,553 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 947 transitions. [2022-11-16 12:33:23,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 947 transitions. [2022-11-16 12:33:23,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:23,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 947 transitions. [2022-11-16 12:33:23,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,560 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,560 INFO L175 Difference]: Start difference. First operand has 276 places, 272 transitions, 553 flow. Second operand 3 states and 947 transitions. [2022-11-16 12:33:23,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 274 transitions, 584 flow [2022-11-16 12:33:23,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 274 transitions, 580 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:23,566 INFO L231 Difference]: Finished difference. Result has 273 places, 273 transitions, 567 flow [2022-11-16 12:33:23,568 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=567, PETRI_PLACES=273, PETRI_TRANSITIONS=273} [2022-11-16 12:33:23,569 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -31 predicate places. [2022-11-16 12:33:23,569 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 273 transitions, 567 flow [2022-11-16 12:33:23,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:23,570 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:23,570 INFO L209 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] [2022-11-16 12:33:23,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:33:23,570 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:23,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:23,571 INFO L85 PathProgramCache]: Analyzing trace with hash 357529083, now seen corresponding path program 1 times [2022-11-16 12:33:23,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:23,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661317357] [2022-11-16 12:33:23,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:23,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:24,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:24,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661317357] [2022-11-16 12:33:24,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661317357] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:24,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:24,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:24,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518890648] [2022-11-16 12:33:24,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:24,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:24,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:24,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:24,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:24,296 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 333 [2022-11-16 12:33:24,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 273 transitions, 567 flow. Second operand has 6 states, 6 states have (on average 266.8333333333333) internal successors, (1601), 6 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:24,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:24,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 333 [2022-11-16 12:33:24,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:25,968 INFO L130 PetriNetUnfolder]: 2250/6089 cut-off events. [2022-11-16 12:33:25,968 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-16 12:33:25,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9542 conditions, 6089 events. 2250/6089 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 52317 event pairs, 1152 based on Foata normal form. 0/5307 useless extension candidates. Maximal degree in co-relation 9500. Up to 1150 conditions per place. [2022-11-16 12:33:26,025 INFO L137 encePairwiseOnDemand]: 328/333 looper letters, 144 selfloop transitions, 4 changer transitions 0/368 dead transitions. [2022-11-16 12:33:26,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 368 transitions, 1053 flow [2022-11-16 12:33:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:33:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:33:26,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1739 transitions. [2022-11-16 12:33:26,031 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8703703703703703 [2022-11-16 12:33:26,031 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1739 transitions. [2022-11-16 12:33:26,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1739 transitions. [2022-11-16 12:33:26,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:26,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1739 transitions. [2022-11-16 12:33:26,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,045 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,045 INFO L175 Difference]: Start difference. First operand has 273 places, 273 transitions, 567 flow. Second operand 6 states and 1739 transitions. [2022-11-16 12:33:26,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 368 transitions, 1053 flow [2022-11-16 12:33:26,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 368 transitions, 1047 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:26,054 INFO L231 Difference]: Finished difference. Result has 275 places, 272 transitions, 567 flow [2022-11-16 12:33:26,055 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=567, PETRI_PLACES=275, PETRI_TRANSITIONS=272} [2022-11-16 12:33:26,055 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -29 predicate places. [2022-11-16 12:33:26,056 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 272 transitions, 567 flow [2022-11-16 12:33:26,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 266.8333333333333) internal successors, (1601), 6 states have internal predecessors, (1601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:26,058 INFO L209 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] [2022-11-16 12:33:26,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:33:26,058 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:26,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:26,059 INFO L85 PathProgramCache]: Analyzing trace with hash -445101216, now seen corresponding path program 1 times [2022-11-16 12:33:26,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:26,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716782560] [2022-11-16 12:33:26,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:26,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:26,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:26,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716782560] [2022-11-16 12:33:26,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716782560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:26,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:26,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:26,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412750486] [2022-11-16 12:33:26,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:26,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:26,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:26,116 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 333 [2022-11-16 12:33:26,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 272 transitions, 567 flow. Second operand has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:26,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 333 [2022-11-16 12:33:26,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:26,232 INFO L130 PetriNetUnfolder]: 26/508 cut-off events. [2022-11-16 12:33:26,232 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:33:26,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 563 conditions, 508 events. 26/508 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1831 event pairs, 2 based on Foata normal form. 0/464 useless extension candidates. Maximal degree in co-relation 523. Up to 26 conditions per place. [2022-11-16 12:33:26,238 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 11 selfloop transitions, 2 changer transitions 0/274 dead transitions. [2022-11-16 12:33:26,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 274 transitions, 599 flow [2022-11-16 12:33:26,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:26,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:26,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2022-11-16 12:33:26,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9459459459459459 [2022-11-16 12:33:26,241 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2022-11-16 12:33:26,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2022-11-16 12:33:26,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:26,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2022-11-16 12:33:26,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,249 INFO L175 Difference]: Start difference. First operand has 275 places, 272 transitions, 567 flow. Second operand 3 states and 945 transitions. [2022-11-16 12:33:26,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 274 transitions, 599 flow [2022-11-16 12:33:26,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 274 transitions, 592 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:33:26,255 INFO L231 Difference]: Finished difference. Result has 272 places, 272 transitions, 570 flow [2022-11-16 12:33:26,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=272, PETRI_TRANSITIONS=272} [2022-11-16 12:33:26,256 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -32 predicate places. [2022-11-16 12:33:26,256 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 272 transitions, 570 flow [2022-11-16 12:33:26,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:26,257 INFO L209 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] [2022-11-16 12:33:26,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:33:26,258 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:26,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:26,258 INFO L85 PathProgramCache]: Analyzing trace with hash -550219634, now seen corresponding path program 1 times [2022-11-16 12:33:26,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:26,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130812730] [2022-11-16 12:33:26,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:26,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:26,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:26,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:26,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:26,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130812730] [2022-11-16 12:33:26,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130812730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:26,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:26,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:33:26,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525624885] [2022-11-16 12:33:26,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:26,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:26,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:26,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:26,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:26,336 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 333 [2022-11-16 12:33:26,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 272 transitions, 570 flow. Second operand has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:26,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 333 [2022-11-16 12:33:26,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:26,447 INFO L130 PetriNetUnfolder]: 50/521 cut-off events. [2022-11-16 12:33:26,447 INFO L131 PetriNetUnfolder]: For 32/33 co-relation queries the response was YES. [2022-11-16 12:33:26,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 632 conditions, 521 events. 50/521 cut-off events. For 32/33 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1820 event pairs, 12 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 592. Up to 57 conditions per place. [2022-11-16 12:33:26,453 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 10 selfloop transitions, 3 changer transitions 0/274 dead transitions. [2022-11-16 12:33:26,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 274 transitions, 601 flow [2022-11-16 12:33:26,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:26,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:26,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2022-11-16 12:33:26,456 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9479479479479479 [2022-11-16 12:33:26,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 947 transitions. [2022-11-16 12:33:26,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 947 transitions. [2022-11-16 12:33:26,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:26,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 947 transitions. [2022-11-16 12:33:26,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,463 INFO L175 Difference]: Start difference. First operand has 272 places, 272 transitions, 570 flow. Second operand 3 states and 947 transitions. [2022-11-16 12:33:26,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 274 transitions, 601 flow [2022-11-16 12:33:26,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 274 transitions, 601 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:33:26,470 INFO L231 Difference]: Finished difference. Result has 276 places, 273 transitions, 588 flow [2022-11-16 12:33:26,471 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=276, PETRI_TRANSITIONS=273} [2022-11-16 12:33:26,472 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -28 predicate places. [2022-11-16 12:33:26,472 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 273 transitions, 588 flow [2022-11-16 12:33:26,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:26,473 INFO L209 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] [2022-11-16 12:33:26,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:33:26,473 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:26,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:26,474 INFO L85 PathProgramCache]: Analyzing trace with hash 52651253, now seen corresponding path program 1 times [2022-11-16 12:33:26,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:26,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180780322] [2022-11-16 12:33:26,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:26,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:26,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:26,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:26,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180780322] [2022-11-16 12:33:26,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180780322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:26,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:26,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:33:26,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701256758] [2022-11-16 12:33:26,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:26,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:33:26,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:26,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:33:26,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:33:26,553 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 333 [2022-11-16 12:33:26,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 273 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:26,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 333 [2022-11-16 12:33:26,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:26,668 INFO L130 PetriNetUnfolder]: 33/623 cut-off events. [2022-11-16 12:33:26,668 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 12:33:26,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 623 events. 33/623 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2445 event pairs, 3 based on Foata normal form. 0/577 useless extension candidates. Maximal degree in co-relation 699. Up to 29 conditions per place. [2022-11-16 12:33:26,674 INFO L137 encePairwiseOnDemand]: 329/333 looper letters, 11 selfloop transitions, 2 changer transitions 0/275 dead transitions. [2022-11-16 12:33:26,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 275 transitions, 620 flow [2022-11-16 12:33:26,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:33:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:33:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2022-11-16 12:33:26,678 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9459459459459459 [2022-11-16 12:33:26,678 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2022-11-16 12:33:26,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2022-11-16 12:33:26,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:26,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2022-11-16 12:33:26,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,686 INFO L175 Difference]: Start difference. First operand has 276 places, 273 transitions, 588 flow. Second operand 3 states and 945 transitions. [2022-11-16 12:33:26,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 275 transitions, 620 flow [2022-11-16 12:33:26,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 275 transitions, 614 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:33:26,694 INFO L231 Difference]: Finished difference. Result has 275 places, 273 transitions, 592 flow [2022-11-16 12:33:26,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=592, PETRI_PLACES=275, PETRI_TRANSITIONS=273} [2022-11-16 12:33:26,695 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -29 predicate places. [2022-11-16 12:33:26,695 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 273 transitions, 592 flow [2022-11-16 12:33:26,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:26,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:26,696 INFO L209 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] [2022-11-16 12:33:26,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:33:26,697 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:26,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:26,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2143177978, now seen corresponding path program 1 times [2022-11-16 12:33:26,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:26,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466725169] [2022-11-16 12:33:26,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:26,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:27,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:27,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466725169] [2022-11-16 12:33:27,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466725169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:27,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:27,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:33:27,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031955251] [2022-11-16 12:33:27,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:27,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:33:27,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:27,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:33:27,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:33:27,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 333 [2022-11-16 12:33:27,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 273 transitions, 592 flow. Second operand has 8 states, 8 states have (on average 257.875) internal successors, (2063), 8 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:27,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:27,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 333 [2022-11-16 12:33:27,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:27,538 INFO L130 PetriNetUnfolder]: 185/1199 cut-off events. [2022-11-16 12:33:27,539 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-16 12:33:27,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1832 conditions, 1199 events. 185/1199 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6661 event pairs, 62 based on Foata normal form. 4/1087 useless extension candidates. Maximal degree in co-relation 1787. Up to 179 conditions per place. [2022-11-16 12:33:27,550 INFO L137 encePairwiseOnDemand]: 317/333 looper letters, 115 selfloop transitions, 18 changer transitions 0/340 dead transitions. [2022-11-16 12:33:27,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 340 transitions, 1015 flow [2022-11-16 12:33:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:33:27,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-16 12:33:27,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 3181 transitions. [2022-11-16 12:33:27,558 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.796046046046046 [2022-11-16 12:33:27,558 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 3181 transitions. [2022-11-16 12:33:27,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 3181 transitions. [2022-11-16 12:33:27,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:27,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 3181 transitions. [2022-11-16 12:33:27,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 265.0833333333333) internal successors, (3181), 12 states have internal predecessors, (3181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:27,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 333.0) internal successors, (4329), 13 states have internal predecessors, (4329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:27,577 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 333.0) internal successors, (4329), 13 states have internal predecessors, (4329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:27,577 INFO L175 Difference]: Start difference. First operand has 275 places, 273 transitions, 592 flow. Second operand 12 states and 3181 transitions. [2022-11-16 12:33:27,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 340 transitions, 1015 flow [2022-11-16 12:33:27,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 340 transitions, 1015 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:33:27,587 INFO L231 Difference]: Finished difference. Result has 290 places, 283 transitions, 691 flow [2022-11-16 12:33:27,588 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=691, PETRI_PLACES=290, PETRI_TRANSITIONS=283} [2022-11-16 12:33:27,589 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -14 predicate places. [2022-11-16 12:33:27,589 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 283 transitions, 691 flow [2022-11-16 12:33:27,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 257.875) internal successors, (2063), 8 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:27,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:27,590 INFO L209 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] [2022-11-16 12:33:27,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:33:27,591 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:27,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:27,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1654511461, now seen corresponding path program 1 times [2022-11-16 12:33:27,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:27,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138388106] [2022-11-16 12:33:27,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:27,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:27,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:27,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:27,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138388106] [2022-11-16 12:33:27,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138388106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:27,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:27,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:33:27,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545930529] [2022-11-16 12:33:27,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:27,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:33:27,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:27,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:33:27,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:33:27,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 333 [2022-11-16 12:33:27,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 283 transitions, 691 flow. Second operand has 8 states, 8 states have (on average 258.0) internal successors, (2064), 8 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:27,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:27,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 333 [2022-11-16 12:33:27,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:28,677 INFO L130 PetriNetUnfolder]: 332/1822 cut-off events. [2022-11-16 12:33:28,677 INFO L131 PetriNetUnfolder]: For 344/344 co-relation queries the response was YES. [2022-11-16 12:33:28,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 1822 events. 332/1822 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 11916 event pairs, 109 based on Foata normal form. 0/1618 useless extension candidates. Maximal degree in co-relation 2873. Up to 290 conditions per place. [2022-11-16 12:33:28,712 INFO L137 encePairwiseOnDemand]: 317/333 looper letters, 115 selfloop transitions, 22 changer transitions 0/349 dead transitions. [2022-11-16 12:33:28,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 349 transitions, 1132 flow [2022-11-16 12:33:28,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:33:28,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-16 12:33:28,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3439 transitions. [2022-11-16 12:33:28,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7944097944097944 [2022-11-16 12:33:28,738 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3439 transitions. [2022-11-16 12:33:28,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3439 transitions. [2022-11-16 12:33:28,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:28,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3439 transitions. [2022-11-16 12:33:28,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 264.53846153846155) internal successors, (3439), 13 states have internal predecessors, (3439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:28,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 333.0) internal successors, (4662), 14 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:28,775 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 333.0) internal successors, (4662), 14 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:28,775 INFO L175 Difference]: Start difference. First operand has 290 places, 283 transitions, 691 flow. Second operand 13 states and 3439 transitions. [2022-11-16 12:33:28,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 349 transitions, 1132 flow [2022-11-16 12:33:28,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 349 transitions, 1130 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:33:28,788 INFO L231 Difference]: Finished difference. Result has 304 places, 291 transitions, 787 flow [2022-11-16 12:33:28,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=787, PETRI_PLACES=304, PETRI_TRANSITIONS=291} [2022-11-16 12:33:28,789 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, 0 predicate places. [2022-11-16 12:33:28,791 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 291 transitions, 787 flow [2022-11-16 12:33:28,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 258.0) internal successors, (2064), 8 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:28,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:28,793 INFO L209 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] [2022-11-16 12:33:28,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:33:28,793 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:28,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:28,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1939062022, now seen corresponding path program 1 times [2022-11-16 12:33:28,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:28,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383562257] [2022-11-16 12:33:28,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:28,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:33:29,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:29,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383562257] [2022-11-16 12:33:29,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383562257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:29,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:29,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:29,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807562281] [2022-11-16 12:33:29,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:29,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:29,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:29,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:29,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:29,342 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 333 [2022-11-16 12:33:29,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 291 transitions, 787 flow. Second operand has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:29,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:29,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 333 [2022-11-16 12:33:29,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:36,332 INFO L130 PetriNetUnfolder]: 8351/27183 cut-off events. [2022-11-16 12:33:36,333 INFO L131 PetriNetUnfolder]: For 835/835 co-relation queries the response was YES. [2022-11-16 12:33:36,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44124 conditions, 27183 events. 8351/27183 cut-off events. For 835/835 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 280823 event pairs, 7214 based on Foata normal form. 0/24760 useless extension candidates. Maximal degree in co-relation 44061. Up to 11432 conditions per place. [2022-11-16 12:33:36,603 INFO L137 encePairwiseOnDemand]: 328/333 looper letters, 95 selfloop transitions, 4 changer transitions 9/338 dead transitions. [2022-11-16 12:33:36,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 338 transitions, 1079 flow [2022-11-16 12:33:36,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:33:36,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:33:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1690 transitions. [2022-11-16 12:33:36,610 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8458458458458459 [2022-11-16 12:33:36,610 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1690 transitions. [2022-11-16 12:33:36,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1690 transitions. [2022-11-16 12:33:36,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:36,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1690 transitions. [2022-11-16 12:33:36,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.6666666666667) internal successors, (1690), 6 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:36,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:36,624 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:36,625 INFO L175 Difference]: Start difference. First operand has 304 places, 291 transitions, 787 flow. Second operand 6 states and 1690 transitions. [2022-11-16 12:33:36,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 338 transitions, 1079 flow [2022-11-16 12:33:36,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 338 transitions, 1064 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:33:36,714 INFO L231 Difference]: Finished difference. Result has 302 places, 281 transitions, 720 flow [2022-11-16 12:33:36,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=720, PETRI_PLACES=302, PETRI_TRANSITIONS=281} [2022-11-16 12:33:36,715 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -2 predicate places. [2022-11-16 12:33:36,716 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 281 transitions, 720 flow [2022-11-16 12:33:36,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:36,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:36,717 INFO L209 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] [2022-11-16 12:33:36,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:33:36,718 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:36,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:36,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1298283305, now seen corresponding path program 1 times [2022-11-16 12:33:36,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:36,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141619073] [2022-11-16 12:33:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:36,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:37,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:33:37,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:37,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141619073] [2022-11-16 12:33:37,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141619073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:37,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:37,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:33:37,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574253515] [2022-11-16 12:33:37,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:37,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:33:37,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:37,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:33:37,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:33:37,052 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 333 [2022-11-16 12:33:37,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 281 transitions, 720 flow. Second operand has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:37,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:37,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 333 [2022-11-16 12:33:37,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:37,863 INFO L130 PetriNetUnfolder]: 218/1491 cut-off events. [2022-11-16 12:33:37,864 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2022-11-16 12:33:37,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2482 conditions, 1491 events. 218/1491 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 8840 event pairs, 81 based on Foata normal form. 4/1378 useless extension candidates. Maximal degree in co-relation 2417. Up to 213 conditions per place. [2022-11-16 12:33:37,877 INFO L137 encePairwiseOnDemand]: 319/333 looper letters, 104 selfloop transitions, 18 changer transitions 0/332 dead transitions. [2022-11-16 12:33:37,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 332 transitions, 1103 flow [2022-11-16 12:33:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:33:37,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:33:37,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2915 transitions. [2022-11-16 12:33:37,885 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7957957957957958 [2022-11-16 12:33:37,885 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2915 transitions. [2022-11-16 12:33:37,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2915 transitions. [2022-11-16 12:33:37,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:37,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2915 transitions. [2022-11-16 12:33:37,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 265.0) internal successors, (2915), 11 states have internal predecessors, (2915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:37,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 333.0) internal successors, (3996), 12 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:37,904 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 333.0) internal successors, (3996), 12 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:37,905 INFO L175 Difference]: Start difference. First operand has 302 places, 281 transitions, 720 flow. Second operand 11 states and 2915 transitions. [2022-11-16 12:33:37,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 332 transitions, 1103 flow [2022-11-16 12:33:37,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 332 transitions, 1066 flow, removed 8 selfloop flow, removed 12 redundant places. [2022-11-16 12:33:37,914 INFO L231 Difference]: Finished difference. Result has 300 places, 287 transitions, 781 flow [2022-11-16 12:33:37,915 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=781, PETRI_PLACES=300, PETRI_TRANSITIONS=287} [2022-11-16 12:33:37,915 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -4 predicate places. [2022-11-16 12:33:37,916 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 287 transitions, 781 flow [2022-11-16 12:33:37,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:37,917 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:37,917 INFO L209 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] [2022-11-16 12:33:37,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:33:37,918 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1653159298, now seen corresponding path program 1 times [2022-11-16 12:33:37,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:37,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767769962] [2022-11-16 12:33:37,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:37,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 12:33:38,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:38,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767769962] [2022-11-16 12:33:38,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767769962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:38,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:38,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:33:38,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338711707] [2022-11-16 12:33:38,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:38,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:33:38,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:38,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:33:38,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:33:38,205 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 333 [2022-11-16 12:33:38,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 287 transitions, 781 flow. Second operand has 8 states, 8 states have (on average 259.125) internal successors, (2073), 8 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:38,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:38,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 333 [2022-11-16 12:33:38,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:38,898 INFO L130 PetriNetUnfolder]: 356/1652 cut-off events. [2022-11-16 12:33:38,898 INFO L131 PetriNetUnfolder]: For 449/463 co-relation queries the response was YES. [2022-11-16 12:33:38,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2836 conditions, 1652 events. 356/1652 cut-off events. For 449/463 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 11137 event pairs, 107 based on Foata normal form. 7/1417 useless extension candidates. Maximal degree in co-relation 2772. Up to 284 conditions per place. [2022-11-16 12:33:38,911 INFO L137 encePairwiseOnDemand]: 319/333 looper letters, 91 selfloop transitions, 14 changer transitions 16/331 dead transitions. [2022-11-16 12:33:38,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 331 transitions, 1138 flow [2022-11-16 12:33:38,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:33:38,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:33:38,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2912 transitions. [2022-11-16 12:33:38,919 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.794976794976795 [2022-11-16 12:33:38,919 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2912 transitions. [2022-11-16 12:33:38,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2912 transitions. [2022-11-16 12:33:38,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:38,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2912 transitions. [2022-11-16 12:33:38,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 264.72727272727275) internal successors, (2912), 11 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:38,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 333.0) internal successors, (3996), 12 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:38,938 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 333.0) internal successors, (3996), 12 states have internal predecessors, (3996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:38,938 INFO L175 Difference]: Start difference. First operand has 300 places, 287 transitions, 781 flow. Second operand 11 states and 2912 transitions. [2022-11-16 12:33:38,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 331 transitions, 1138 flow [2022-11-16 12:33:38,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 331 transitions, 1126 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-11-16 12:33:38,947 INFO L231 Difference]: Finished difference. Result has 308 places, 282 transitions, 758 flow [2022-11-16 12:33:38,948 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=758, PETRI_PLACES=308, PETRI_TRANSITIONS=282} [2022-11-16 12:33:38,948 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, 4 predicate places. [2022-11-16 12:33:38,948 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 282 transitions, 758 flow [2022-11-16 12:33:38,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 259.125) internal successors, (2073), 8 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:38,950 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:38,950 INFO L209 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] [2022-11-16 12:33:38,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:33:38,951 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:38,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:38,951 INFO L85 PathProgramCache]: Analyzing trace with hash 389759699, now seen corresponding path program 1 times [2022-11-16 12:33:38,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:38,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492899051] [2022-11-16 12:33:38,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:38,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:33:39,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:39,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492899051] [2022-11-16 12:33:39,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492899051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:39,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:39,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:39,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466950592] [2022-11-16 12:33:39,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:39,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:39,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:39,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:39,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:39,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 333 [2022-11-16 12:33:39,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 282 transitions, 758 flow. Second operand has 6 states, 6 states have (on average 263.6666666666667) internal successors, (1582), 6 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:39,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:39,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 333 [2022-11-16 12:33:39,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:45,643 INFO L130 PetriNetUnfolder]: 11160/27306 cut-off events. [2022-11-16 12:33:45,643 INFO L131 PetriNetUnfolder]: For 1358/1362 co-relation queries the response was YES. [2022-11-16 12:33:45,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49079 conditions, 27306 events. 11160/27306 cut-off events. For 1358/1362 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 254313 event pairs, 2648 based on Foata normal form. 0/25253 useless extension candidates. Maximal degree in co-relation 49014. Up to 10134 conditions per place. [2022-11-16 12:33:45,870 INFO L137 encePairwiseOnDemand]: 327/333 looper letters, 133 selfloop transitions, 6 changer transitions 0/363 dead transitions. [2022-11-16 12:33:45,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 363 transitions, 1208 flow [2022-11-16 12:33:45,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:33:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:33:45,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1699 transitions. [2022-11-16 12:33:45,875 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8503503503503503 [2022-11-16 12:33:45,875 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1699 transitions. [2022-11-16 12:33:45,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1699 transitions. [2022-11-16 12:33:45,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:45,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1699 transitions. [2022-11-16 12:33:45,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 283.1666666666667) internal successors, (1699), 6 states have internal predecessors, (1699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:45,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:45,886 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:45,887 INFO L175 Difference]: Start difference. First operand has 308 places, 282 transitions, 758 flow. Second operand 6 states and 1699 transitions. [2022-11-16 12:33:45,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 363 transitions, 1208 flow [2022-11-16 12:33:45,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 363 transitions, 1151 flow, removed 4 selfloop flow, removed 15 redundant places. [2022-11-16 12:33:45,907 INFO L231 Difference]: Finished difference. Result has 293 places, 281 transitions, 711 flow [2022-11-16 12:33:45,907 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=711, PETRI_PLACES=293, PETRI_TRANSITIONS=281} [2022-11-16 12:33:45,908 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -11 predicate places. [2022-11-16 12:33:45,908 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 281 transitions, 711 flow [2022-11-16 12:33:45,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.6666666666667) internal successors, (1582), 6 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:45,909 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:45,910 INFO L209 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, 1, 1] [2022-11-16 12:33:45,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:33:45,910 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:45,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:45,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1293019816, now seen corresponding path program 1 times [2022-11-16 12:33:45,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:45,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127510984] [2022-11-16 12:33:45,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:45,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:46,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:33:46,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:46,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127510984] [2022-11-16 12:33:46,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127510984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:46,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:46,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:46,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188588094] [2022-11-16 12:33:46,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:46,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:46,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:46,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:46,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:46,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 333 [2022-11-16 12:33:46,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 281 transitions, 711 flow. Second operand has 6 states, 6 states have (on average 263.8333333333333) internal successors, (1583), 6 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:46,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:46,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 333 [2022-11-16 12:33:46,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:51,826 INFO L130 PetriNetUnfolder]: 10631/27427 cut-off events. [2022-11-16 12:33:51,826 INFO L131 PetriNetUnfolder]: For 2196/2196 co-relation queries the response was YES. [2022-11-16 12:33:51,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49686 conditions, 27427 events. 10631/27427 cut-off events. For 2196/2196 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 259979 event pairs, 2441 based on Foata normal form. 0/25850 useless extension candidates. Maximal degree in co-relation 49633. Up to 9714 conditions per place. [2022-11-16 12:33:52,019 INFO L137 encePairwiseOnDemand]: 327/333 looper letters, 142 selfloop transitions, 6 changer transitions 0/372 dead transitions. [2022-11-16 12:33:52,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 372 transitions, 1233 flow [2022-11-16 12:33:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:33:52,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:33:52,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1708 transitions. [2022-11-16 12:33:52,022 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8548548548548549 [2022-11-16 12:33:52,023 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1708 transitions. [2022-11-16 12:33:52,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1708 transitions. [2022-11-16 12:33:52,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:52,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1708 transitions. [2022-11-16 12:33:52,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 284.6666666666667) internal successors, (1708), 6 states have internal predecessors, (1708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:52,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:52,031 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:52,032 INFO L175 Difference]: Start difference. First operand has 293 places, 281 transitions, 711 flow. Second operand 6 states and 1708 transitions. [2022-11-16 12:33:52,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 372 transitions, 1233 flow [2022-11-16 12:33:52,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 372 transitions, 1189 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:33:52,049 INFO L231 Difference]: Finished difference. Result has 292 places, 280 transitions, 709 flow [2022-11-16 12:33:52,049 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=709, PETRI_PLACES=292, PETRI_TRANSITIONS=280} [2022-11-16 12:33:52,050 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -12 predicate places. [2022-11-16 12:33:52,050 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 280 transitions, 709 flow [2022-11-16 12:33:52,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 263.8333333333333) internal successors, (1583), 6 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:52,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:52,051 INFO L209 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, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:52,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:33:52,052 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:52,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:52,052 INFO L85 PathProgramCache]: Analyzing trace with hash 649623419, now seen corresponding path program 1 times [2022-11-16 12:33:52,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:52,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101470231] [2022-11-16 12:33:52,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:52,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:52,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:33:52,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:52,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101470231] [2022-11-16 12:33:52,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101470231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:52,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:52,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:52,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666887161] [2022-11-16 12:33:52,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:52,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:52,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:52,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:52,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:52,580 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 333 [2022-11-16 12:33:52,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 280 transitions, 709 flow. Second operand has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:52,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:52,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 333 [2022-11-16 12:33:52,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:33:58,622 INFO L130 PetriNetUnfolder]: 10109/30581 cut-off events. [2022-11-16 12:33:58,622 INFO L131 PetriNetUnfolder]: For 2456/2460 co-relation queries the response was YES. [2022-11-16 12:33:58,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52828 conditions, 30581 events. 10109/30581 cut-off events. For 2456/2460 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 316972 event pairs, 5900 based on Foata normal form. 0/29101 useless extension candidates. Maximal degree in co-relation 52775. Up to 9629 conditions per place. [2022-11-16 12:33:58,833 INFO L137 encePairwiseOnDemand]: 327/333 looper letters, 127 selfloop transitions, 6 changer transitions 0/357 dead transitions. [2022-11-16 12:33:58,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 357 transitions, 1171 flow [2022-11-16 12:33:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:33:58,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:33:58,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1693 transitions. [2022-11-16 12:33:58,838 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8473473473473474 [2022-11-16 12:33:58,838 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1693 transitions. [2022-11-16 12:33:58,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1693 transitions. [2022-11-16 12:33:58,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:33:58,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1693 transitions. [2022-11-16 12:33:58,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 282.1666666666667) internal successors, (1693), 6 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:58,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:58,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:58,850 INFO L175 Difference]: Start difference. First operand has 292 places, 280 transitions, 709 flow. Second operand 6 states and 1693 transitions. [2022-11-16 12:33:58,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 357 transitions, 1171 flow [2022-11-16 12:33:58,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 357 transitions, 1127 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:33:58,890 INFO L231 Difference]: Finished difference. Result has 291 places, 279 transitions, 707 flow [2022-11-16 12:33:58,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=707, PETRI_PLACES=291, PETRI_TRANSITIONS=279} [2022-11-16 12:33:58,891 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -13 predicate places. [2022-11-16 12:33:58,891 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 279 transitions, 707 flow [2022-11-16 12:33:58,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:58,892 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:33:58,893 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:33:58,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:33:58,893 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:33:58,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:33:58,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1336892848, now seen corresponding path program 1 times [2022-11-16 12:33:58,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:33:58,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359457787] [2022-11-16 12:33:58,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:33:58,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:33:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:33:59,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:33:59,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:33:59,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359457787] [2022-11-16 12:33:59,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359457787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:33:59,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:33:59,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:33:59,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960092742] [2022-11-16 12:33:59,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:33:59,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:33:59,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:33:59,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:33:59,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:33:59,609 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 333 [2022-11-16 12:33:59,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 279 transitions, 707 flow. Second operand has 6 states, 6 states have (on average 264.8333333333333) internal successors, (1589), 6 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:33:59,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:33:59,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 333 [2022-11-16 12:33:59,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:34:05,232 INFO L130 PetriNetUnfolder]: 9656/30298 cut-off events. [2022-11-16 12:34:05,232 INFO L131 PetriNetUnfolder]: For 2444/2444 co-relation queries the response was YES. [2022-11-16 12:34:05,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52021 conditions, 30298 events. 9656/30298 cut-off events. For 2444/2444 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 316431 event pairs, 5677 based on Foata normal form. 0/29260 useless extension candidates. Maximal degree in co-relation 51968. Up to 9306 conditions per place. [2022-11-16 12:34:05,440 INFO L137 encePairwiseOnDemand]: 327/333 looper letters, 136 selfloop transitions, 6 changer transitions 0/366 dead transitions. [2022-11-16 12:34:05,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 366 transitions, 1209 flow [2022-11-16 12:34:05,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:34:05,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:34:05,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1702 transitions. [2022-11-16 12:34:05,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8518518518518519 [2022-11-16 12:34:05,445 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1702 transitions. [2022-11-16 12:34:05,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1702 transitions. [2022-11-16 12:34:05,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:34:05,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1702 transitions. [2022-11-16 12:34:05,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 283.6666666666667) internal successors, (1702), 6 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:05,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:05,456 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 333.0) internal successors, (2331), 7 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:05,456 INFO L175 Difference]: Start difference. First operand has 291 places, 279 transitions, 707 flow. Second operand 6 states and 1702 transitions. [2022-11-16 12:34:05,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 366 transitions, 1209 flow [2022-11-16 12:34:05,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 366 transitions, 1165 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:34:05,515 INFO L231 Difference]: Finished difference. Result has 290 places, 278 transitions, 705 flow [2022-11-16 12:34:05,516 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=705, PETRI_PLACES=290, PETRI_TRANSITIONS=278} [2022-11-16 12:34:05,516 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -14 predicate places. [2022-11-16 12:34:05,517 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 278 transitions, 705 flow [2022-11-16 12:34:05,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 264.8333333333333) internal successors, (1589), 6 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:05,518 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:34:05,518 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:34:05,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:34:05,518 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:34:05,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:34:05,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2065093853, now seen corresponding path program 1 times [2022-11-16 12:34:05,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:34:05,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080279993] [2022-11-16 12:34:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:34:05,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:34:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:34:05,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:34:05,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:34:05,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080279993] [2022-11-16 12:34:05,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080279993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:34:05,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:34:05,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:34:05,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153971393] [2022-11-16 12:34:05,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:34:05,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:34:05,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:34:05,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:34:05,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:34:05,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 333 [2022-11-16 12:34:05,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 278 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:05,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:34:05,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 333 [2022-11-16 12:34:05,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:34:06,052 INFO L130 PetriNetUnfolder]: 56/879 cut-off events. [2022-11-16 12:34:06,053 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-11-16 12:34:06,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 879 events. 56/879 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3192 event pairs, 27 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 1191. Up to 106 conditions per place. [2022-11-16 12:34:06,058 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 16 selfloop transitions, 2 changer transitions 0/278 dead transitions. [2022-11-16 12:34:06,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 278 transitions, 742 flow [2022-11-16 12:34:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:34:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:34:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2022-11-16 12:34:06,060 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9079079079079079 [2022-11-16 12:34:06,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2022-11-16 12:34:06,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2022-11-16 12:34:06,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:34:06,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2022-11-16 12:34:06,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:06,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:06,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:06,065 INFO L175 Difference]: Start difference. First operand has 290 places, 278 transitions, 705 flow. Second operand 3 states and 907 transitions. [2022-11-16 12:34:06,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 278 transitions, 742 flow [2022-11-16 12:34:06,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 278 transitions, 730 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:34:06,072 INFO L231 Difference]: Finished difference. Result has 286 places, 277 transitions, 695 flow [2022-11-16 12:34:06,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=286, PETRI_TRANSITIONS=277} [2022-11-16 12:34:06,073 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -18 predicate places. [2022-11-16 12:34:06,073 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 277 transitions, 695 flow [2022-11-16 12:34:06,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 300.6666666666667) internal successors, (902), 3 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:06,074 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:34:06,074 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:34:06,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:34:06,075 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 58 more)] === [2022-11-16 12:34:06,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:34:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1820006648, now seen corresponding path program 1 times [2022-11-16 12:34:06,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:34:06,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699019890] [2022-11-16 12:34:06,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:34:06,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:34:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:34:06,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:34:06,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:34:06,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699019890] [2022-11-16 12:34:06,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699019890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:34:06,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:34:06,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:34:06,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875082465] [2022-11-16 12:34:06,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:34:06,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:34:06,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:34:06,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:34:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:34:06,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 333 [2022-11-16 12:34:06,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 277 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:06,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:34:06,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 333 [2022-11-16 12:34:06,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:34:06,367 INFO L130 PetriNetUnfolder]: 119/1033 cut-off events. [2022-11-16 12:34:06,367 INFO L131 PetriNetUnfolder]: For 129/131 co-relation queries the response was YES. [2022-11-16 12:34:06,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1459 conditions, 1033 events. 119/1033 cut-off events. For 129/131 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5393 event pairs, 56 based on Foata normal form. 0/973 useless extension candidates. Maximal degree in co-relation 1408. Up to 178 conditions per place. [2022-11-16 12:34:06,376 INFO L137 encePairwiseOnDemand]: 330/333 looper letters, 0 selfloop transitions, 0 changer transitions 277/277 dead transitions. [2022-11-16 12:34:06,376 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 277 transitions, 732 flow [2022-11-16 12:34:06,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:34:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:34:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2022-11-16 12:34:06,378 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9079079079079079 [2022-11-16 12:34:06,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2022-11-16 12:34:06,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2022-11-16 12:34:06,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:34:06,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2022-11-16 12:34:06,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:06,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:06,383 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 333.0) internal successors, (1332), 4 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:06,383 INFO L175 Difference]: Start difference. First operand has 286 places, 277 transitions, 695 flow. Second operand 3 states and 907 transitions. [2022-11-16 12:34:06,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 277 transitions, 732 flow [2022-11-16 12:34:06,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 277 transitions, 728 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:34:06,388 INFO L231 Difference]: Finished difference. Result has 285 places, 0 transitions, 0 flow [2022-11-16 12:34:06,389 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=285, PETRI_TRANSITIONS=0} [2022-11-16 12:34:06,389 INFO L288 CegarLoopForPetriNet]: 304 programPoint places, -19 predicate places. [2022-11-16 12:34:06,389 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 0 transitions, 0 flow [2022-11-16 12:34:06,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:34:06,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (61 of 62 remaining) [2022-11-16 12:34:06,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (60 of 62 remaining) [2022-11-16 12:34:06,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (59 of 62 remaining) [2022-11-16 12:34:06,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (58 of 62 remaining) [2022-11-16 12:34:06,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (57 of 62 remaining) [2022-11-16 12:34:06,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (56 of 62 remaining) [2022-11-16 12:34:06,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (55 of 62 remaining) [2022-11-16 12:34:06,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (54 of 62 remaining) [2022-11-16 12:34:06,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (53 of 62 remaining) [2022-11-16 12:34:06,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (52 of 62 remaining) [2022-11-16 12:34:06,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (51 of 62 remaining) [2022-11-16 12:34:06,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (50 of 62 remaining) [2022-11-16 12:34:06,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (49 of 62 remaining) [2022-11-16 12:34:06,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (48 of 62 remaining) [2022-11-16 12:34:06,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (47 of 62 remaining) [2022-11-16 12:34:06,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (46 of 62 remaining) [2022-11-16 12:34:06,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (45 of 62 remaining) [2022-11-16 12:34:06,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (44 of 62 remaining) [2022-11-16 12:34:06,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (43 of 62 remaining) [2022-11-16 12:34:06,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (42 of 62 remaining) [2022-11-16 12:34:06,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (41 of 62 remaining) [2022-11-16 12:34:06,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (40 of 62 remaining) [2022-11-16 12:34:06,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (39 of 62 remaining) [2022-11-16 12:34:06,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (38 of 62 remaining) [2022-11-16 12:34:06,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 62 remaining) [2022-11-16 12:34:06,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 62 remaining) [2022-11-16 12:34:06,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 62 remaining) [2022-11-16 12:34:06,399 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 62 remaining) [2022-11-16 12:34:06,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 62 remaining) [2022-11-16 12:34:06,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 62 remaining) [2022-11-16 12:34:06,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (31 of 62 remaining) [2022-11-16 12:34:06,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 62 remaining) [2022-11-16 12:34:06,400 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 62 remaining) [2022-11-16 12:34:06,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 62 remaining) [2022-11-16 12:34:06,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 62 remaining) [2022-11-16 12:34:06,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 62 remaining) [2022-11-16 12:34:06,401 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 62 remaining) [2022-11-16 12:34:06,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 62 remaining) [2022-11-16 12:34:06,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 62 remaining) [2022-11-16 12:34:06,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 62 remaining) [2022-11-16 12:34:06,402 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 62 remaining) [2022-11-16 12:34:06,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 62 remaining) [2022-11-16 12:34:06,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (19 of 62 remaining) [2022-11-16 12:34:06,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (18 of 62 remaining) [2022-11-16 12:34:06,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (17 of 62 remaining) [2022-11-16 12:34:06,403 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (16 of 62 remaining) [2022-11-16 12:34:06,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (15 of 62 remaining) [2022-11-16 12:34:06,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (14 of 62 remaining) [2022-11-16 12:34:06,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (13 of 62 remaining) [2022-11-16 12:34:06,404 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (12 of 62 remaining) [2022-11-16 12:34:06,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 62 remaining) [2022-11-16 12:34:06,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 62 remaining) [2022-11-16 12:34:06,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 62 remaining) [2022-11-16 12:34:06,405 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 62 remaining) [2022-11-16 12:34:06,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (7 of 62 remaining) [2022-11-16 12:34:06,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (6 of 62 remaining) [2022-11-16 12:34:06,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (5 of 62 remaining) [2022-11-16 12:34:06,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (4 of 62 remaining) [2022-11-16 12:34:06,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (3 of 62 remaining) [2022-11-16 12:34:06,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (2 of 62 remaining) [2022-11-16 12:34:06,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 62 remaining) [2022-11-16 12:34:06,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (0 of 62 remaining) [2022-11-16 12:34:06,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 12:34:06,408 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, 1, 1, 1] [2022-11-16 12:34:06,415 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:34:06,415 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:34:06,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:34:06 BasicIcfg [2022-11-16 12:34:06,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:34:06,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:34:06,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:34:06,422 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:34:06,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:17" (3/4) ... [2022-11-16 12:34:06,425 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:34:06,432 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 12:34:06,432 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 12:34:06,438 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-16 12:34:06,438 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:34:06,439 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:34:06,439 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:34:06,507 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:34:06,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:34:06,508 INFO L158 Benchmark]: Toolchain (without parser) took 50649.47ms. Allocated memory was 111.1MB in the beginning and 12.0GB in the end (delta: 11.8GB). Free memory was 68.3MB in the beginning and 10.0GB in the end (delta: -10.0GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2022-11-16 12:34:06,508 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 111.1MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:34:06,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.60ms. Allocated memory is still 111.1MB. Free memory was 68.2MB in the beginning and 83.2MB in the end (delta: -15.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:34:06,509 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.79ms. Allocated memory is still 111.1MB. Free memory was 83.2MB in the beginning and 81.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:34:06,509 INFO L158 Benchmark]: Boogie Preprocessor took 88.48ms. Allocated memory is still 111.1MB. Free memory was 81.2MB in the beginning and 78.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:34:06,509 INFO L158 Benchmark]: RCFGBuilder took 892.18ms. Allocated memory is still 111.1MB. Free memory was 78.7MB in the beginning and 51.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 12:34:06,510 INFO L158 Benchmark]: TraceAbstraction took 49073.92ms. Allocated memory was 111.1MB in the beginning and 12.0GB in the end (delta: 11.8GB). Free memory was 50.8MB in the beginning and 10.0GB in the end (delta: -10.0GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2022-11-16 12:34:06,510 INFO L158 Benchmark]: Witness Printer took 85.55ms. Allocated memory is still 12.0GB. Free memory was 10.0GB in the beginning and 10.0GB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:34:06,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 111.1MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.60ms. Allocated memory is still 111.1MB. Free memory was 68.2MB in the beginning and 83.2MB in the end (delta: -15.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.79ms. Allocated memory is still 111.1MB. Free memory was 83.2MB in the beginning and 81.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.48ms. Allocated memory is still 111.1MB. Free memory was 81.2MB in the beginning and 78.7MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 892.18ms. Allocated memory is still 111.1MB. Free memory was 78.7MB in the beginning and 51.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 49073.92ms. Allocated memory was 111.1MB in the beginning and 12.0GB in the end (delta: 11.8GB). Free memory was 50.8MB in the beginning and 10.0GB in the end (delta: -10.0GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 85.55ms. Allocated memory is still 12.0GB. Free memory was 10.0GB in the beginning and 10.0GB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: 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: 48]: 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: 58]: 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: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: 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: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: 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: 96]: 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: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: 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, 445 locations, 62 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: 48.8s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 41.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 941 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 941 mSDsluCounter, 920 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 364 mSDsCounter, 441 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2886 IncrementalHoareTripleChecker+Invalid, 3327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 441 mSolverCounterUnsat, 556 mSDtfsCounter, 2886 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=787occurred in iteration=16, InterpolantAutomatonStates: 131, 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, 0.4s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 2897 NumberOfCodeBlocks, 2897 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 2872 ConstructedInterpolants, 0 QuantifiedInterpolants, 5507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 PerfectInterpolantSequences, 14/14 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:34:06,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b39a4259-13b0-4e51-bc46-7f96f20cf1c1/bin/uautomizer-tPACEb0tL8/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