./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:04:51,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:04:51,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:04:51,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:04:51,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:04:51,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:04:51,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:04:51,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:04:51,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:04:51,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:04:51,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:04:51,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:04:51,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:04:51,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:04:51,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:04:51,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:04:51,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:04:51,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:04:51,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:04:51,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:04:51,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:04:51,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:04:51,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:04:51,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:04:51,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:04:51,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:04:51,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:04:51,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:04:51,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:04:51,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:04:51,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:04:51,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:04:51,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:04:51,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:04:51,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:04:51,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:04:51,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:04:51,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:04:51,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:04:51,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:04:51,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:04:51,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:04:51,421 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:04:51,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:04:51,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:04:51,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:04:51,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:04:51,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:04:51,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:04:51,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:04:51,427 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:04:51,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:04:51,428 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:04:51,429 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:04:51,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:04:51,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:04:51,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:04:51,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:04:51,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:04:51,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:04:51,430 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:04:51,430 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:04:51,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:04:51,431 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:04:51,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:04:51,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:04:51,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:04:51,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:04:51,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:51,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:04:51,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:04:51,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:04:51,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:04:51,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:04:51,433 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:04:51,434 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:04:51,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:04:51,434 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_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e [2022-11-02 21:04:51,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:04:51,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:04:51,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:04:51,802 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:04:51,803 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:04:51,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2022-11-02 21:04:51,887 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/data/29f168561/5c9cda0d74be4296ad81397aa4c659d6/FLAGa46919e66 [2022-11-02 21:04:52,547 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:04:52,548 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2022-11-02 21:04:52,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/data/29f168561/5c9cda0d74be4296ad81397aa4c659d6/FLAGa46919e66 [2022-11-02 21:04:52,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/data/29f168561/5c9cda0d74be4296ad81397aa4c659d6 [2022-11-02 21:04:52,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:04:52,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:04:52,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:52,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:04:52,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:04:52,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:52" (1/1) ... [2022-11-02 21:04:52,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e490d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:52, skipping insertion in model container [2022-11-02 21:04:52,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:04:52" (1/1) ... [2022-11-02 21:04:52,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:04:52,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:04:53,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/sv-benchmarks/c/weaver/chl-word-symm.wvr.c[2848,2861] [2022-11-02 21:04:53,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:53,214 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:04:53,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/sv-benchmarks/c/weaver/chl-word-symm.wvr.c[2848,2861] [2022-11-02 21:04:53,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:04:53,325 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:04:53,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53 WrapperNode [2022-11-02 21:04:53,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:04:53,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:53,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:04:53,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:04:53,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,418 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 204 [2022-11-02 21:04:53,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:04:53,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:04:53,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:04:53,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:04:53,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,513 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:04:53,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:04:53,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:04:53,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:04:53,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (1/1) ... [2022-11-02 21:04:53,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:04:53,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:04:53,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:04:53,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44f6cf9a-2c10-46f5-a4db-7ac30de6dc05/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:04:53,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:04:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 21:04:53,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 21:04:53,628 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 21:04:53,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 21:04:53,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:04:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:04:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:04:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:04:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:04:53,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:04:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:04:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:04:53,634 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:04:53,825 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:04:53,827 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:04:54,761 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:04:54,787 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:04:54,787 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-02 21:04:54,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:54 BoogieIcfgContainer [2022-11-02 21:04:54,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:04:54,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:04:54,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:04:54,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:04:54,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:04:52" (1/3) ... [2022-11-02 21:04:54,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c893ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:54, skipping insertion in model container [2022-11-02 21:04:54,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:04:53" (2/3) ... [2022-11-02 21:04:54,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c893ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:04:54, skipping insertion in model container [2022-11-02 21:04:54,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:04:54" (3/3) ... [2022-11-02 21:04:54,808 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2022-11-02 21:04:54,823 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:04:54,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:04:54,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2022-11-02 21:04:54,837 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:04:55,056 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 21:04:55,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 481 places, 504 transitions, 1024 flow [2022-11-02 21:04:55,339 INFO L130 PetriNetUnfolder]: 30/502 cut-off events. [2022-11-02 21:04:55,339 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:04:55,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 511 conditions, 502 events. 30/502 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1167 event pairs, 0 based on Foata normal form. 0/416 useless extension candidates. Maximal degree in co-relation 296. Up to 3 conditions per place. [2022-11-02 21:04:55,351 INFO L82 GeneralOperation]: Start removeDead. Operand has 481 places, 504 transitions, 1024 flow [2022-11-02 21:04:55,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 460 places, 481 transitions, 974 flow [2022-11-02 21:04:55,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:04:55,400 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;@79313dfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:04:55,400 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-11-02 21:04:55,411 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-11-02 21:04:55,411 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:04:55,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:55,413 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:55,414 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:04:55,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:55,422 INFO L85 PathProgramCache]: Analyzing trace with hash 178501308, now seen corresponding path program 1 times [2022-11-02 21:04:55,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:55,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426459775] [2022-11-02 21:04:55,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:55,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:55,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:55,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:55,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426459775] [2022-11-02 21:04:55,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426459775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:55,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:55,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:55,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594234638] [2022-11-02 21:04:55,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:55,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:55,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:55,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:55,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:55,792 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-11-02 21:04:55,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 481 transitions, 974 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:55,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:55,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-11-02 21:04:55,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:56,444 INFO L130 PetriNetUnfolder]: 129/1570 cut-off events. [2022-11-02 21:04:56,444 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-02 21:04:56,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1715 conditions, 1570 events. 129/1570 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10394 event pairs, 48 based on Foata normal form. 22/1263 useless extension candidates. Maximal degree in co-relation 1337. Up to 116 conditions per place. [2022-11-02 21:04:56,469 INFO L137 encePairwiseOnDemand]: 491/504 looper letters, 19 selfloop transitions, 2 changer transitions 6/470 dead transitions. [2022-11-02 21:04:56,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 470 transitions, 994 flow [2022-11-02 21:04:56,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:56,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-02 21:04:56,507 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2022-11-02 21:04:56,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-02 21:04:56,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-02 21:04:56,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:56,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-02 21:04:56,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:56,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:56,545 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:56,548 INFO L175 Difference]: Start difference. First operand has 460 places, 481 transitions, 974 flow. Second operand 3 states and 1442 transitions. [2022-11-02 21:04:56,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 470 transitions, 994 flow [2022-11-02 21:04:56,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 470 transitions, 986 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:04:56,576 INFO L231 Difference]: Finished difference. Result has 457 places, 464 transitions, 936 flow [2022-11-02 21:04:56,580 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=944, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=936, PETRI_PLACES=457, PETRI_TRANSITIONS=464} [2022-11-02 21:04:56,585 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -3 predicate places. [2022-11-02 21:04:56,586 INFO L495 AbstractCegarLoop]: Abstraction has has 457 places, 464 transitions, 936 flow [2022-11-02 21:04:56,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:56,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:56,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:56,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:04:56,589 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:04:56,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:56,590 INFO L85 PathProgramCache]: Analyzing trace with hash 624599664, now seen corresponding path program 1 times [2022-11-02 21:04:56,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:56,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431447314] [2022-11-02 21:04:56,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:56,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:56,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:56,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:56,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431447314] [2022-11-02 21:04:56,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431447314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:56,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:56,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:56,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031436986] [2022-11-02 21:04:56,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:56,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:56,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:56,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:56,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:56,763 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-11-02 21:04:56,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 464 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:56,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:56,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-11-02 21:04:56,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:57,168 INFO L130 PetriNetUnfolder]: 125/1428 cut-off events. [2022-11-02 21:04:57,169 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-02 21:04:57,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1563 conditions, 1428 events. 125/1428 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 9028 event pairs, 48 based on Foata normal form. 0/1136 useless extension candidates. Maximal degree in co-relation 1528. Up to 121 conditions per place. [2022-11-02 21:04:57,189 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 19 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2022-11-02 21:04:57,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 463 transitions, 976 flow [2022-11-02 21:04:57,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:57,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1432 transitions. [2022-11-02 21:04:57,196 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9470899470899471 [2022-11-02 21:04:57,197 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1432 transitions. [2022-11-02 21:04:57,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1432 transitions. [2022-11-02 21:04:57,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:57,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1432 transitions. [2022-11-02 21:04:57,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,209 INFO L175 Difference]: Start difference. First operand has 457 places, 464 transitions, 936 flow. Second operand 3 states and 1432 transitions. [2022-11-02 21:04:57,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 463 transitions, 976 flow [2022-11-02 21:04:57,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 463 transitions, 972 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:57,220 INFO L231 Difference]: Finished difference. Result has 450 places, 463 transitions, 934 flow [2022-11-02 21:04:57,221 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=934, PETRI_PLACES=450, PETRI_TRANSITIONS=463} [2022-11-02 21:04:57,222 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -10 predicate places. [2022-11-02 21:04:57,223 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 463 transitions, 934 flow [2022-11-02 21:04:57,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:57,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:57,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:04:57,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:04:57,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:57,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1040060785, now seen corresponding path program 1 times [2022-11-02 21:04:57,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:57,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033257033] [2022-11-02 21:04:57,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:57,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:57,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:57,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:57,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033257033] [2022-11-02 21:04:57,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033257033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:57,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:57,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:57,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069129886] [2022-11-02 21:04:57,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:57,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:57,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:57,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:57,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:57,318 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 504 [2022-11-02 21:04:57,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 463 transitions, 934 flow. Second operand has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:57,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 504 [2022-11-02 21:04:57,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:57,657 INFO L130 PetriNetUnfolder]: 129/1500 cut-off events. [2022-11-02 21:04:57,657 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-02 21:04:57,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1653 conditions, 1500 events. 129/1500 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9535 event pairs, 48 based on Foata normal form. 0/1199 useless extension candidates. Maximal degree in co-relation 1611. Up to 139 conditions per place. [2022-11-02 21:04:57,678 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 22 selfloop transitions, 2 changer transitions 0/462 dead transitions. [2022-11-02 21:04:57,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 462 transitions, 980 flow [2022-11-02 21:04:57,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:57,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1426 transitions. [2022-11-02 21:04:57,682 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9431216931216931 [2022-11-02 21:04:57,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1426 transitions. [2022-11-02 21:04:57,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1426 transitions. [2022-11-02 21:04:57,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:57,684 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1426 transitions. [2022-11-02 21:04:57,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,693 INFO L175 Difference]: Start difference. First operand has 450 places, 463 transitions, 934 flow. Second operand 3 states and 1426 transitions. [2022-11-02 21:04:57,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 462 transitions, 980 flow [2022-11-02 21:04:57,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 462 transitions, 976 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:57,702 INFO L231 Difference]: Finished difference. Result has 449 places, 462 transitions, 932 flow [2022-11-02 21:04:57,703 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=932, PETRI_PLACES=449, PETRI_TRANSITIONS=462} [2022-11-02 21:04:57,704 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -11 predicate places. [2022-11-02 21:04:57,704 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 462 transitions, 932 flow [2022-11-02 21:04:57,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:57,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:57,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:04:57,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:04:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:57,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1454560472, now seen corresponding path program 1 times [2022-11-02 21:04:57,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:57,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022737605] [2022-11-02 21:04:57,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:57,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:57,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:57,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:57,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022737605] [2022-11-02 21:04:57,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022737605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:57,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:57,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:57,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66467116] [2022-11-02 21:04:57,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:57,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:57,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:57,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:57,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:57,791 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 504 [2022-11-02 21:04:57,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 462 transitions, 932 flow. Second operand has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:57,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:57,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 504 [2022-11-02 21:04:57,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:58,096 INFO L130 PetriNetUnfolder]: 129/1313 cut-off events. [2022-11-02 21:04:58,097 INFO L131 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2022-11-02 21:04:58,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 1313 events. 129/1313 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8025 event pairs, 48 based on Foata normal form. 0/1049 useless extension candidates. Maximal degree in co-relation 1426. Up to 148 conditions per place. [2022-11-02 21:04:58,120 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 22 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-11-02 21:04:58,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 461 transitions, 978 flow [2022-11-02 21:04:58,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:58,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:58,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1426 transitions. [2022-11-02 21:04:58,124 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9431216931216931 [2022-11-02 21:04:58,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1426 transitions. [2022-11-02 21:04:58,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1426 transitions. [2022-11-02 21:04:58,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:58,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1426 transitions. [2022-11-02 21:04:58,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.3333333333333) internal successors, (1426), 3 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,140 INFO L175 Difference]: Start difference. First operand has 449 places, 462 transitions, 932 flow. Second operand 3 states and 1426 transitions. [2022-11-02 21:04:58,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 461 transitions, 978 flow [2022-11-02 21:04:58,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 461 transitions, 974 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:58,157 INFO L231 Difference]: Finished difference. Result has 448 places, 461 transitions, 930 flow [2022-11-02 21:04:58,158 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=930, PETRI_PLACES=448, PETRI_TRANSITIONS=461} [2022-11-02 21:04:58,159 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -12 predicate places. [2022-11-02 21:04:58,165 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 461 transitions, 930 flow [2022-11-02 21:04:58,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 468.3333333333333) internal successors, (1405), 3 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,167 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:58,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:58,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:04:58,168 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:04:58,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:58,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1660972203, now seen corresponding path program 1 times [2022-11-02 21:04:58,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:58,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317478130] [2022-11-02 21:04:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:58,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:58,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:58,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317478130] [2022-11-02 21:04:58,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317478130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:58,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:58,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:58,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449685416] [2022-11-02 21:04:58,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:58,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:58,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:58,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:58,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:58,239 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-11-02 21:04:58,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 448 places, 461 transitions, 930 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:58,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-11-02 21:04:58,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:58,533 INFO L130 PetriNetUnfolder]: 91/1266 cut-off events. [2022-11-02 21:04:58,534 INFO L131 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-11-02 21:04:58,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1355 conditions, 1266 events. 91/1266 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 7353 event pairs, 24 based on Foata normal form. 0/1043 useless extension candidates. Maximal degree in co-relation 1298. Up to 76 conditions per place. [2022-11-02 21:04:58,553 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 15 selfloop transitions, 1 changer transitions 0/456 dead transitions. [2022-11-02 21:04:58,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 456 transitions, 952 flow [2022-11-02 21:04:58,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:58,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:58,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-02 21:04:58,557 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9464285714285714 [2022-11-02 21:04:58,557 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-02 21:04:58,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-02 21:04:58,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:58,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-02 21:04:58,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,568 INFO L175 Difference]: Start difference. First operand has 448 places, 461 transitions, 930 flow. Second operand 3 states and 1431 transitions. [2022-11-02 21:04:58,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 456 transitions, 952 flow [2022-11-02 21:04:58,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 456 transitions, 948 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:04:58,578 INFO L231 Difference]: Finished difference. Result has 443 places, 456 transitions, 918 flow [2022-11-02 21:04:58,579 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=918, PETRI_PLACES=443, PETRI_TRANSITIONS=456} [2022-11-02 21:04:58,580 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -17 predicate places. [2022-11-02 21:04:58,580 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 456 transitions, 918 flow [2022-11-02 21:04:58,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:58,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:58,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:04:58,582 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:04:58,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:58,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1969097157, now seen corresponding path program 1 times [2022-11-02 21:04:58,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:58,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983664671] [2022-11-02 21:04:58,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:58,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:58,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:58,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983664671] [2022-11-02 21:04:58,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983664671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:58,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:58,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:04:58,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821412329] [2022-11-02 21:04:58,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:58,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:04:58,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:58,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:04:58,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:04:58,655 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-11-02 21:04:58,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 456 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:58,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:58,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-11-02 21:04:58,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:04:59,016 INFO L130 PetriNetUnfolder]: 133/1426 cut-off events. [2022-11-02 21:04:59,016 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-02 21:04:59,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1581 conditions, 1426 events. 133/1426 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8253 event pairs, 48 based on Foata normal form. 0/1161 useless extension candidates. Maximal degree in co-relation 1525. Up to 142 conditions per place. [2022-11-02 21:04:59,040 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 19 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2022-11-02 21:04:59,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 455 transitions, 958 flow [2022-11-02 21:04:59,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:04:59,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:04:59,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1432 transitions. [2022-11-02 21:04:59,044 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9470899470899471 [2022-11-02 21:04:59,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1432 transitions. [2022-11-02 21:04:59,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1432 transitions. [2022-11-02 21:04:59,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:04:59,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1432 transitions. [2022-11-02 21:04:59,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,055 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,056 INFO L175 Difference]: Start difference. First operand has 443 places, 456 transitions, 918 flow. Second operand 3 states and 1432 transitions. [2022-11-02 21:04:59,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 455 transitions, 958 flow [2022-11-02 21:04:59,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 455 transitions, 957 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:04:59,067 INFO L231 Difference]: Finished difference. Result has 443 places, 455 transitions, 919 flow [2022-11-02 21:04:59,068 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=919, PETRI_PLACES=443, PETRI_TRANSITIONS=455} [2022-11-02 21:04:59,071 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -17 predicate places. [2022-11-02 21:04:59,071 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 455 transitions, 919 flow [2022-11-02 21:04:59,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:04:59,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:04:59,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:04:59,074 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:04:59,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:04:59,075 INFO L85 PathProgramCache]: Analyzing trace with hash 893458395, now seen corresponding path program 1 times [2022-11-02 21:04:59,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:04:59,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580990337] [2022-11-02 21:04:59,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:04:59,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:04:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:04:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:04:59,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:04:59,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580990337] [2022-11-02 21:04:59,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580990337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:04:59,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:04:59,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:04:59,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123545125] [2022-11-02 21:04:59,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:04:59,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:04:59,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:04:59,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:04:59,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:04:59,723 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 504 [2022-11-02 21:04:59,726 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 455 transitions, 919 flow. Second operand has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:04:59,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:04:59,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 504 [2022-11-02 21:04:59,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:05,892 INFO L130 PetriNetUnfolder]: 9342/28725 cut-off events. [2022-11-02 21:05:05,893 INFO L131 PetriNetUnfolder]: For 68/79 co-relation queries the response was YES. [2022-11-02 21:05:06,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41732 conditions, 28725 events. 9342/28725 cut-off events. For 68/79 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 317967 event pairs, 7968 based on Foata normal form. 0/23316 useless extension candidates. Maximal degree in co-relation 41677. Up to 12966 conditions per place. [2022-11-02 21:05:06,208 INFO L137 encePairwiseOnDemand]: 492/504 looper letters, 86 selfloop transitions, 10 changer transitions 0/453 dead transitions. [2022-11-02 21:05:06,209 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 453 transitions, 1107 flow [2022-11-02 21:05:06,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:05:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:05:06,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2462 transitions. [2022-11-02 21:05:06,218 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8141534391534392 [2022-11-02 21:05:06,218 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2462 transitions. [2022-11-02 21:05:06,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2462 transitions. [2022-11-02 21:05:06,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:06,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2462 transitions. [2022-11-02 21:05:06,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 410.3333333333333) internal successors, (2462), 6 states have internal predecessors, (2462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,238 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,239 INFO L175 Difference]: Start difference. First operand has 443 places, 455 transitions, 919 flow. Second operand 6 states and 2462 transitions. [2022-11-02 21:05:06,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 453 transitions, 1107 flow [2022-11-02 21:05:06,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 453 transitions, 1103 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:06,253 INFO L231 Difference]: Finished difference. Result has 444 places, 453 transitions, 931 flow [2022-11-02 21:05:06,254 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=931, PETRI_PLACES=444, PETRI_TRANSITIONS=453} [2022-11-02 21:05:06,255 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -16 predicate places. [2022-11-02 21:05:06,256 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 453 transitions, 931 flow [2022-11-02 21:05:06,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:06,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:06,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:05:06,279 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:06,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:06,280 INFO L85 PathProgramCache]: Analyzing trace with hash -516272356, now seen corresponding path program 1 times [2022-11-02 21:05:06,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:06,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115472938] [2022-11-02 21:05:06,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:06,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:06,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:06,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:06,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115472938] [2022-11-02 21:05:06,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115472938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:06,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:06,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:06,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939683683] [2022-11-02 21:05:06,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:06,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:06,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:06,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:06,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:06,383 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-11-02 21:05:06,386 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 453 transitions, 931 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:06,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-11-02 21:05:06,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:06,690 INFO L130 PetriNetUnfolder]: 92/1124 cut-off events. [2022-11-02 21:05:06,691 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-02 21:05:06,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 1124 events. 92/1124 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6273 event pairs, 24 based on Foata normal form. 0/944 useless extension candidates. Maximal degree in co-relation 1195. Up to 82 conditions per place. [2022-11-02 21:05:06,709 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 15 selfloop transitions, 1 changer transitions 0/448 dead transitions. [2022-11-02 21:05:06,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 448 transitions, 953 flow [2022-11-02 21:05:06,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:06,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-02 21:05:06,715 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9464285714285714 [2022-11-02 21:05:06,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-02 21:05:06,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-02 21:05:06,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:06,721 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-02 21:05:06,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,734 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,735 INFO L175 Difference]: Start difference. First operand has 444 places, 453 transitions, 931 flow. Second operand 3 states and 1431 transitions. [2022-11-02 21:05:06,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 448 transitions, 953 flow [2022-11-02 21:05:06,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 448 transitions, 933 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:05:06,749 INFO L231 Difference]: Finished difference. Result has 436 places, 448 transitions, 903 flow [2022-11-02 21:05:06,750 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=903, PETRI_PLACES=436, PETRI_TRANSITIONS=448} [2022-11-02 21:05:06,753 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-11-02 21:05:06,754 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 448 transitions, 903 flow [2022-11-02 21:05:06,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:06,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:06,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:05:06,756 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:06,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:06,757 INFO L85 PathProgramCache]: Analyzing trace with hash 633337230, now seen corresponding path program 1 times [2022-11-02 21:05:06,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:06,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696596909] [2022-11-02 21:05:06,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:06,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:06,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:06,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696596909] [2022-11-02 21:05:06,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696596909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:06,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:06,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:06,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648769701] [2022-11-02 21:05:06,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:06,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:06,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:06,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:06,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:06,850 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 470 out of 504 [2022-11-02 21:05:06,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 448 transitions, 903 flow. Second operand has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:06,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:06,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 470 of 504 [2022-11-02 21:05:06,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:07,198 INFO L130 PetriNetUnfolder]: 125/1391 cut-off events. [2022-11-02 21:05:07,199 INFO L131 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-11-02 21:05:07,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 1391 events. 125/1391 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7971 event pairs, 48 based on Foata normal form. 0/1165 useless extension candidates. Maximal degree in co-relation 1483. Up to 134 conditions per place. [2022-11-02 21:05:07,212 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 19 selfloop transitions, 2 changer transitions 0/447 dead transitions. [2022-11-02 21:05:07,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 447 transitions, 943 flow [2022-11-02 21:05:07,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:07,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1432 transitions. [2022-11-02 21:05:07,217 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9470899470899471 [2022-11-02 21:05:07,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1432 transitions. [2022-11-02 21:05:07,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1432 transitions. [2022-11-02 21:05:07,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:07,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1432 transitions. [2022-11-02 21:05:07,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,225 INFO L175 Difference]: Start difference. First operand has 436 places, 448 transitions, 903 flow. Second operand 3 states and 1432 transitions. [2022-11-02 21:05:07,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 447 transitions, 943 flow [2022-11-02 21:05:07,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 447 transitions, 942 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:05:07,234 INFO L231 Difference]: Finished difference. Result has 436 places, 447 transitions, 904 flow [2022-11-02 21:05:07,235 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=445, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=436, PETRI_TRANSITIONS=447} [2022-11-02 21:05:07,236 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-11-02 21:05:07,237 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 447 transitions, 904 flow [2022-11-02 21:05:07,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 471.3333333333333) internal successors, (1414), 3 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:07,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:07,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:05:07,239 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:07,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:07,239 INFO L85 PathProgramCache]: Analyzing trace with hash -678539360, now seen corresponding path program 1 times [2022-11-02 21:05:07,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:07,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662295680] [2022-11-02 21:05:07,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:07,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:07,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:07,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662295680] [2022-11-02 21:05:07,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662295680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:07,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:07,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:07,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077584831] [2022-11-02 21:05:07,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:07,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:07,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:07,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:07,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:07,307 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 504 [2022-11-02 21:05:07,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 447 transitions, 904 flow. Second operand has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:07,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 504 [2022-11-02 21:05:07,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:07,519 INFO L130 PetriNetUnfolder]: 91/1247 cut-off events. [2022-11-02 21:05:07,519 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 21:05:07,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 1247 events. 91/1247 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7291 event pairs, 16 based on Foata normal form. 0/1054 useless extension candidates. Maximal degree in co-relation 1265. Up to 58 conditions per place. [2022-11-02 21:05:07,531 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 15 selfloop transitions, 2 changer transitions 0/446 dead transitions. [2022-11-02 21:05:07,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 446 transitions, 937 flow [2022-11-02 21:05:07,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:07,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1440 transitions. [2022-11-02 21:05:07,537 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2022-11-02 21:05:07,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1440 transitions. [2022-11-02 21:05:07,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1440 transitions. [2022-11-02 21:05:07,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:07,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1440 transitions. [2022-11-02 21:05:07,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,546 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,546 INFO L175 Difference]: Start difference. First operand has 436 places, 447 transitions, 904 flow. Second operand 3 states and 1440 transitions. [2022-11-02 21:05:07,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 446 transitions, 937 flow [2022-11-02 21:05:07,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 446 transitions, 933 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:07,556 INFO L231 Difference]: Finished difference. Result has 433 places, 445 transitions, 906 flow [2022-11-02 21:05:07,557 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=906, PETRI_PLACES=433, PETRI_TRANSITIONS=445} [2022-11-02 21:05:07,558 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -27 predicate places. [2022-11-02 21:05:07,558 INFO L495 AbstractCegarLoop]: Abstraction has has 433 places, 445 transitions, 906 flow [2022-11-02 21:05:07,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:07,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:07,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:05:07,560 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:07,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:07,561 INFO L85 PathProgramCache]: Analyzing trace with hash 758741282, now seen corresponding path program 1 times [2022-11-02 21:05:07,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:07,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638504331] [2022-11-02 21:05:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:07,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:07,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:07,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638504331] [2022-11-02 21:05:07,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638504331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:07,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:07,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:07,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146720432] [2022-11-02 21:05:07,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:07,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:07,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:07,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:07,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:07,630 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 504 [2022-11-02 21:05:07,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 445 transitions, 906 flow. Second operand has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:07,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 504 [2022-11-02 21:05:07,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:07,837 INFO L130 PetriNetUnfolder]: 92/1237 cut-off events. [2022-11-02 21:05:07,838 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 21:05:07,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 1237 events. 92/1237 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7191 event pairs, 16 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1266. Up to 60 conditions per place. [2022-11-02 21:05:07,850 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 15 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2022-11-02 21:05:07,851 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 444 transitions, 939 flow [2022-11-02 21:05:07,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:07,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:07,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1440 transitions. [2022-11-02 21:05:07,855 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2022-11-02 21:05:07,855 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1440 transitions. [2022-11-02 21:05:07,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1440 transitions. [2022-11-02 21:05:07,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:07,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1440 transitions. [2022-11-02 21:05:07,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.0) internal successors, (1440), 3 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,864 INFO L175 Difference]: Start difference. First operand has 433 places, 445 transitions, 906 flow. Second operand 3 states and 1440 transitions. [2022-11-02 21:05:07,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 444 transitions, 939 flow [2022-11-02 21:05:07,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 444 transitions, 939 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:05:07,875 INFO L231 Difference]: Finished difference. Result has 432 places, 443 transitions, 912 flow [2022-11-02 21:05:07,876 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=912, PETRI_PLACES=432, PETRI_TRANSITIONS=443} [2022-11-02 21:05:07,877 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -28 predicate places. [2022-11-02 21:05:07,877 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 443 transitions, 912 flow [2022-11-02 21:05:07,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:07,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:07,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:07,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:05:07,881 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:07,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:07,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1326505051, now seen corresponding path program 1 times [2022-11-02 21:05:07,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:07,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288482925] [2022-11-02 21:05:07,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:07,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:08,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:08,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288482925] [2022-11-02 21:05:08,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288482925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:08,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:08,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:08,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432157783] [2022-11-02 21:05:08,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:08,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:05:08,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:08,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:05:08,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:05:08,604 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 504 [2022-11-02 21:05:08,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 443 transitions, 912 flow. Second operand has 6 states, 6 states have (on average 411.8333333333333) internal successors, (2471), 6 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:08,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:08,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 504 [2022-11-02 21:05:08,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:13,770 INFO L130 PetriNetUnfolder]: 9280/23179 cut-off events. [2022-11-02 21:05:13,770 INFO L131 PetriNetUnfolder]: For 34/341 co-relation queries the response was YES. [2022-11-02 21:05:13,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36814 conditions, 23179 events. 9280/23179 cut-off events. For 34/341 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 225212 event pairs, 2748 based on Foata normal form. 27/19767 useless extension candidates. Maximal degree in co-relation 36756. Up to 4337 conditions per place. [2022-11-02 21:05:14,298 INFO L137 encePairwiseOnDemand]: 499/504 looper letters, 265 selfloop transitions, 4 changer transitions 0/634 dead transitions. [2022-11-02 21:05:14,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 634 transitions, 1832 flow [2022-11-02 21:05:14,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:05:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:05:14,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2730 transitions. [2022-11-02 21:05:14,308 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2022-11-02 21:05:14,308 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2730 transitions. [2022-11-02 21:05:14,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2730 transitions. [2022-11-02 21:05:14,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:14,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2730 transitions. [2022-11-02 21:05:14,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 455.0) internal successors, (2730), 6 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,328 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,329 INFO L175 Difference]: Start difference. First operand has 432 places, 443 transitions, 912 flow. Second operand 6 states and 2730 transitions. [2022-11-02 21:05:14,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 634 transitions, 1832 flow [2022-11-02 21:05:14,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 634 transitions, 1832 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:05:14,345 INFO L231 Difference]: Finished difference. Result has 436 places, 442 transitions, 918 flow [2022-11-02 21:05:14,346 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=918, PETRI_PLACES=436, PETRI_TRANSITIONS=442} [2022-11-02 21:05:14,347 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-11-02 21:05:14,347 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 442 transitions, 918 flow [2022-11-02 21:05:14,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 411.8333333333333) internal successors, (2471), 6 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:14,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:14,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:05:14,351 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:14,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:14,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1915727878, now seen corresponding path program 1 times [2022-11-02 21:05:14,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:14,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5709644] [2022-11-02 21:05:14,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:14,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:14,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:14,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5709644] [2022-11-02 21:05:14,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5709644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:14,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:14,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:14,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188328308] [2022-11-02 21:05:14,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:14,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:14,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:14,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:14,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:14,445 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 504 [2022-11-02 21:05:14,447 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 442 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:14,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 504 [2022-11-02 21:05:14,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:14,651 INFO L130 PetriNetUnfolder]: 54/880 cut-off events. [2022-11-02 21:05:14,651 INFO L131 PetriNetUnfolder]: For 2/9 co-relation queries the response was YES. [2022-11-02 21:05:14,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 880 events. 54/880 cut-off events. For 2/9 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4219 event pairs, 6 based on Foata normal form. 1/765 useless extension candidates. Maximal degree in co-relation 894. Up to 24 conditions per place. [2022-11-02 21:05:14,663 INFO L137 encePairwiseOnDemand]: 500/504 looper letters, 11 selfloop transitions, 3 changer transitions 0/444 dead transitions. [2022-11-02 21:05:14,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 444 transitions, 951 flow [2022-11-02 21:05:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:14,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:14,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-02 21:05:14,669 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9623015873015873 [2022-11-02 21:05:14,669 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-02 21:05:14,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-02 21:05:14,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:14,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-02 21:05:14,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,681 INFO L175 Difference]: Start difference. First operand has 436 places, 442 transitions, 918 flow. Second operand 3 states and 1455 transitions. [2022-11-02 21:05:14,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 444 transitions, 951 flow [2022-11-02 21:05:14,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 444 transitions, 944 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:05:14,696 INFO L231 Difference]: Finished difference. Result has 436 places, 443 transitions, 929 flow [2022-11-02 21:05:14,697 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=929, PETRI_PLACES=436, PETRI_TRANSITIONS=443} [2022-11-02 21:05:14,699 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-11-02 21:05:14,699 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 443 transitions, 929 flow [2022-11-02 21:05:14,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.6666666666667) internal successors, (1445), 3 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,700 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:14,700 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:14,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:05:14,701 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:14,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:14,702 INFO L85 PathProgramCache]: Analyzing trace with hash -2073915675, now seen corresponding path program 1 times [2022-11-02 21:05:14,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:14,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261029834] [2022-11-02 21:05:14,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:14,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:14,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:14,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:14,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261029834] [2022-11-02 21:05:14,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261029834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:14,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:14,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:14,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736298328] [2022-11-02 21:05:14,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:14,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:14,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:14,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:14,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:14,793 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-11-02 21:05:14,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 443 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:14,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:14,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-11-02 21:05:14,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:15,067 INFO L130 PetriNetUnfolder]: 68/1058 cut-off events. [2022-11-02 21:05:15,067 INFO L131 PetriNetUnfolder]: For 5/9 co-relation queries the response was YES. [2022-11-02 21:05:15,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 1058 events. 68/1058 cut-off events. For 5/9 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5004 event pairs, 7 based on Foata normal form. 1/920 useless extension candidates. Maximal degree in co-relation 1094. Up to 39 conditions per place. [2022-11-02 21:05:15,081 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 22 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-11-02 21:05:15,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 443 transitions, 978 flow [2022-11-02 21:05:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:15,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:15,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1429 transitions. [2022-11-02 21:05:15,086 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9451058201058201 [2022-11-02 21:05:15,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1429 transitions. [2022-11-02 21:05:15,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1429 transitions. [2022-11-02 21:05:15,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:15,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1429 transitions. [2022-11-02 21:05:15,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.3333333333333) internal successors, (1429), 3 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,098 INFO L175 Difference]: Start difference. First operand has 436 places, 443 transitions, 929 flow. Second operand 3 states and 1429 transitions. [2022-11-02 21:05:15,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 443 transitions, 978 flow [2022-11-02 21:05:15,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 443 transitions, 972 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:15,111 INFO L231 Difference]: Finished difference. Result has 435 places, 442 transitions, 925 flow [2022-11-02 21:05:15,112 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=925, PETRI_PLACES=435, PETRI_TRANSITIONS=442} [2022-11-02 21:05:15,113 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -25 predicate places. [2022-11-02 21:05:15,113 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 442 transitions, 925 flow [2022-11-02 21:05:15,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:15,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:15,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:05:15,115 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:15,116 INFO L85 PathProgramCache]: Analyzing trace with hash 795899627, now seen corresponding path program 1 times [2022-11-02 21:05:15,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:15,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905595432] [2022-11-02 21:05:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:15,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:15,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:15,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905595432] [2022-11-02 21:05:15,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905595432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:15,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:15,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:15,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378931586] [2022-11-02 21:05:15,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:15,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:15,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:15,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:15,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:15,195 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 504 [2022-11-02 21:05:15,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 442 transitions, 925 flow. Second operand has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:15,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 504 [2022-11-02 21:05:15,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:15,522 INFO L130 PetriNetUnfolder]: 117/1535 cut-off events. [2022-11-02 21:05:15,523 INFO L131 PetriNetUnfolder]: For 16/17 co-relation queries the response was YES. [2022-11-02 21:05:15,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1680 conditions, 1535 events. 117/1535 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9248 event pairs, 12 based on Foata normal form. 0/1326 useless extension candidates. Maximal degree in co-relation 1668. Up to 89 conditions per place. [2022-11-02 21:05:15,535 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 17 selfloop transitions, 2 changer transitions 0/443 dead transitions. [2022-11-02 21:05:15,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 443 transitions, 968 flow [2022-11-02 21:05:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:15,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-02 21:05:15,541 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2022-11-02 21:05:15,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-02 21:05:15,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-02 21:05:15,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:15,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-02 21:05:15,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,552 INFO L175 Difference]: Start difference. First operand has 435 places, 442 transitions, 925 flow. Second operand 3 states and 1442 transitions. [2022-11-02 21:05:15,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 443 transitions, 968 flow [2022-11-02 21:05:15,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 443 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:15,565 INFO L231 Difference]: Finished difference. Result has 432 places, 440 transitions, 927 flow [2022-11-02 21:05:15,566 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=438, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=927, PETRI_PLACES=432, PETRI_TRANSITIONS=440} [2022-11-02 21:05:15,567 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -28 predicate places. [2022-11-02 21:05:15,567 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 440 transitions, 927 flow [2022-11-02 21:05:15,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 474.6666666666667) internal successors, (1424), 3 states have internal predecessors, (1424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:15,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:15,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:05:15,569 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:15,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash -245243240, now seen corresponding path program 1 times [2022-11-02 21:05:15,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:15,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618641109] [2022-11-02 21:05:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:15,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:15,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:15,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:15,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618641109] [2022-11-02 21:05:15,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618641109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:15,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:15,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:15,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619863639] [2022-11-02 21:05:15,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:15,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:15,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:15,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:15,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:15,651 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 504 [2022-11-02 21:05:15,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 440 transitions, 927 flow. Second operand has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:15,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 504 [2022-11-02 21:05:15,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:15,962 INFO L130 PetriNetUnfolder]: 91/1097 cut-off events. [2022-11-02 21:05:15,963 INFO L131 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2022-11-02 21:05:15,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1270 conditions, 1097 events. 91/1097 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5936 event pairs, 12 based on Foata normal form. 0/957 useless extension candidates. Maximal degree in co-relation 1212. Up to 86 conditions per place. [2022-11-02 21:05:15,976 INFO L137 encePairwiseOnDemand]: 500/504 looper letters, 11 selfloop transitions, 3 changer transitions 0/442 dead transitions. [2022-11-02 21:05:15,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 442 transitions, 960 flow [2022-11-02 21:05:15,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:15,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-02 21:05:15,980 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9623015873015873 [2022-11-02 21:05:15,980 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-02 21:05:15,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-02 21:05:15,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:15,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-02 21:05:15,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:15,990 INFO L175 Difference]: Start difference. First operand has 432 places, 440 transitions, 927 flow. Second operand 3 states and 1455 transitions. [2022-11-02 21:05:15,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 442 transitions, 960 flow [2022-11-02 21:05:15,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 442 transitions, 960 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:05:16,002 INFO L231 Difference]: Finished difference. Result has 436 places, 441 transitions, 945 flow [2022-11-02 21:05:16,003 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=436, PETRI_TRANSITIONS=441} [2022-11-02 21:05:16,004 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -24 predicate places. [2022-11-02 21:05:16,007 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 441 transitions, 945 flow [2022-11-02 21:05:16,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 482.0) internal successors, (1446), 3 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:16,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:16,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:05:16,008 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:16,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash -712542405, now seen corresponding path program 1 times [2022-11-02 21:05:16,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:16,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830789298] [2022-11-02 21:05:16,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:16,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:16,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:16,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:16,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830789298] [2022-11-02 21:05:16,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830789298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:16,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:16,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:16,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609044756] [2022-11-02 21:05:16,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:16,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:16,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:16,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:16,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:16,071 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-11-02 21:05:16,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 441 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:16,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-11-02 21:05:16,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:16,351 INFO L130 PetriNetUnfolder]: 97/1449 cut-off events. [2022-11-02 21:05:16,351 INFO L131 PetriNetUnfolder]: For 32/40 co-relation queries the response was YES. [2022-11-02 21:05:16,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1693 conditions, 1449 events. 97/1449 cut-off events. For 32/40 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 8325 event pairs, 7 based on Foata normal form. 1/1293 useless extension candidates. Maximal degree in co-relation 1633. Up to 55 conditions per place. [2022-11-02 21:05:16,370 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 21 selfloop transitions, 2 changer transitions 0/441 dead transitions. [2022-11-02 21:05:16,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 441 transitions, 992 flow [2022-11-02 21:05:16,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:16,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1428 transitions. [2022-11-02 21:05:16,374 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-11-02 21:05:16,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1428 transitions. [2022-11-02 21:05:16,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1428 transitions. [2022-11-02 21:05:16,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:16,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1428 transitions. [2022-11-02 21:05:16,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,382 INFO L175 Difference]: Start difference. First operand has 436 places, 441 transitions, 945 flow. Second operand 3 states and 1428 transitions. [2022-11-02 21:05:16,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 441 transitions, 992 flow [2022-11-02 21:05:16,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 441 transitions, 986 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:16,394 INFO L231 Difference]: Finished difference. Result has 435 places, 440 transitions, 941 flow [2022-11-02 21:05:16,394 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=941, PETRI_PLACES=435, PETRI_TRANSITIONS=440} [2022-11-02 21:05:16,395 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -25 predicate places. [2022-11-02 21:05:16,395 INFO L495 AbstractCegarLoop]: Abstraction has has 435 places, 440 transitions, 941 flow [2022-11-02 21:05:16,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,396 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:16,397 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:16,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:05:16,397 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:16,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:16,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1798946656, now seen corresponding path program 1 times [2022-11-02 21:05:16,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:16,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225945935] [2022-11-02 21:05:16,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:16,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:16,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:16,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:16,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225945935] [2022-11-02 21:05:16,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225945935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:16,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:16,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:16,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214380718] [2022-11-02 21:05:16,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:16,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:16,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:16,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:16,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:16,462 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-11-02 21:05:16,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 440 transitions, 941 flow. Second operand has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:16,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-11-02 21:05:16,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:16,660 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1377] thread2EXIT-->L100-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][325], [Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 565#true, 411#L100-7true, Black: 550#true, 530#(= |#race~count2~0| 0), 561#true, 517#(= |#race~n2~0| 0), Black: 523#true, Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), 525#(= |#race~count1~0| 0), Black: 528#true, 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 552#(= |#race~get1~0| 0), 502#(= |#race~n1~0| 0)]) [2022-11-02 21:05:16,661 INFO L383 tUnfolder$Statistics]: this new event has 206 ancestors and is not cut-off event [2022-11-02 21:05:16,661 INFO L386 tUnfolder$Statistics]: existing Event has 237 ancestors and is not cut-off event [2022-11-02 21:05:16,661 INFO L386 tUnfolder$Statistics]: existing Event has 206 ancestors and is not cut-off event [2022-11-02 21:05:16,662 INFO L386 tUnfolder$Statistics]: existing Event has 210 ancestors and is not cut-off event [2022-11-02 21:05:16,672 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1305] L77-6-->L77-7: Formula: (= |v_thread2Thread1of1ForFork0_#t~nondet20_3| |v_#race~res2~0_1|) InVars {thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_3|} OutVars{thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_3|, #race~res2~0=|v_#race~res2~0_1|} AuxVars[] AssignedVars[#race~res2~0][280], [Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 565#true, Black: 550#true, 530#(= |#race~count2~0| 0), 561#true, 517#(= |#race~n2~0| 0), Black: 523#true, Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), 183#L77-7true, 525#(= |#race~count1~0| 0), Black: 528#true, 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 552#(= |#race~get1~0| 0), 198#L99-7true, 502#(= |#race~n1~0| 0)]) [2022-11-02 21:05:16,672 INFO L383 tUnfolder$Statistics]: this new event has 221 ancestors and is cut-off event [2022-11-02 21:05:16,672 INFO L386 tUnfolder$Statistics]: existing Event has 203 ancestors and is cut-off event [2022-11-02 21:05:16,673 INFO L386 tUnfolder$Statistics]: existing Event has 234 ancestors and is cut-off event [2022-11-02 21:05:16,673 INFO L386 tUnfolder$Statistics]: existing Event has 203 ancestors and is cut-off event [2022-11-02 21:05:16,676 INFO L130 PetriNetUnfolder]: 86/1029 cut-off events. [2022-11-02 21:05:16,676 INFO L131 PetriNetUnfolder]: For 32/39 co-relation queries the response was YES. [2022-11-02 21:05:16,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1236 conditions, 1029 events. 86/1029 cut-off events. For 32/39 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5437 event pairs, 11 based on Foata normal form. 1/912 useless extension candidates. Maximal degree in co-relation 1218. Up to 103 conditions per place. [2022-11-02 21:05:16,690 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 21 selfloop transitions, 2 changer transitions 0/440 dead transitions. [2022-11-02 21:05:16,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 440 transitions, 988 flow [2022-11-02 21:05:16,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:16,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:16,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1428 transitions. [2022-11-02 21:05:16,695 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-11-02 21:05:16,695 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1428 transitions. [2022-11-02 21:05:16,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1428 transitions. [2022-11-02 21:05:16,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:16,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1428 transitions. [2022-11-02 21:05:16,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,703 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,703 INFO L175 Difference]: Start difference. First operand has 435 places, 440 transitions, 941 flow. Second operand 3 states and 1428 transitions. [2022-11-02 21:05:16,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 440 transitions, 988 flow [2022-11-02 21:05:16,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 440 transitions, 984 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:16,712 INFO L231 Difference]: Finished difference. Result has 434 places, 439 transitions, 939 flow [2022-11-02 21:05:16,713 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=939, PETRI_PLACES=434, PETRI_TRANSITIONS=439} [2022-11-02 21:05:16,714 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -26 predicate places. [2022-11-02 21:05:16,714 INFO L495 AbstractCegarLoop]: Abstraction has has 434 places, 439 transitions, 939 flow [2022-11-02 21:05:16,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:16,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:16,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:16,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 21:05:16,716 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:16,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:16,716 INFO L85 PathProgramCache]: Analyzing trace with hash -449178284, now seen corresponding path program 1 times [2022-11-02 21:05:16,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:16,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492418191] [2022-11-02 21:05:16,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:16,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:16,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:16,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492418191] [2022-11-02 21:05:16,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492418191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:16,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:16,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:05:16,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279643444] [2022-11-02 21:05:16,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:16,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:05:16,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:16,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:05:16,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:05:16,999 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 504 [2022-11-02 21:05:17,003 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 439 transitions, 939 flow. Second operand has 8 states, 8 states have (on average 411.875) internal successors, (3295), 8 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:17,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:17,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 504 [2022-11-02 21:05:17,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:17,840 INFO L130 PetriNetUnfolder]: 430/2874 cut-off events. [2022-11-02 21:05:17,840 INFO L131 PetriNetUnfolder]: For 28/52 co-relation queries the response was YES. [2022-11-02 21:05:17,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3831 conditions, 2874 events. 430/2874 cut-off events. For 28/52 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 23312 event pairs, 155 based on Foata normal form. 8/2457 useless extension candidates. Maximal degree in co-relation 3775. Up to 503 conditions per place. [2022-11-02 21:05:17,861 INFO L137 encePairwiseOnDemand]: 491/504 looper letters, 116 selfloop transitions, 14 changer transitions 0/486 dead transitions. [2022-11-02 21:05:17,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 486 transitions, 1307 flow [2022-11-02 21:05:17,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:05:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:05:17,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4618 transitions. [2022-11-02 21:05:17,872 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8329725829725829 [2022-11-02 21:05:17,873 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4618 transitions. [2022-11-02 21:05:17,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4618 transitions. [2022-11-02 21:05:17,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:17,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4618 transitions. [2022-11-02 21:05:17,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 419.8181818181818) internal successors, (4618), 11 states have internal predecessors, (4618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:17,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 504.0) internal successors, (6048), 12 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:17,898 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 504.0) internal successors, (6048), 12 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:17,898 INFO L175 Difference]: Start difference. First operand has 434 places, 439 transitions, 939 flow. Second operand 11 states and 4618 transitions. [2022-11-02 21:05:17,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 486 transitions, 1307 flow [2022-11-02 21:05:17,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 486 transitions, 1303 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:17,909 INFO L231 Difference]: Finished difference. Result has 446 places, 446 transitions, 1003 flow [2022-11-02 21:05:17,910 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1003, PETRI_PLACES=446, PETRI_TRANSITIONS=446} [2022-11-02 21:05:17,910 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -14 predicate places. [2022-11-02 21:05:17,911 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 446 transitions, 1003 flow [2022-11-02 21:05:17,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 411.875) internal successors, (3295), 8 states have internal predecessors, (3295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:17,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:17,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:17,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 21:05:17,913 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:17,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:17,913 INFO L85 PathProgramCache]: Analyzing trace with hash 417811686, now seen corresponding path program 1 times [2022-11-02 21:05:17,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:17,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309015104] [2022-11-02 21:05:17,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:17,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:17,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:17,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309015104] [2022-11-02 21:05:17,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309015104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:17,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:17,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:17,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792363173] [2022-11-02 21:05:17,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:17,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:17,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:17,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:17,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:17,973 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 504 [2022-11-02 21:05:17,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 446 transitions, 1003 flow. Second operand has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:17,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:17,975 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 504 [2022-11-02 21:05:17,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:18,531 INFO L130 PetriNetUnfolder]: 188/2568 cut-off events. [2022-11-02 21:05:18,532 INFO L131 PetriNetUnfolder]: For 41/44 co-relation queries the response was YES. [2022-11-02 21:05:18,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2971 conditions, 2568 events. 188/2568 cut-off events. For 41/44 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 18971 event pairs, 13 based on Foata normal form. 0/2289 useless extension candidates. Maximal degree in co-relation 2904. Up to 141 conditions per place. [2022-11-02 21:05:18,563 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 17 selfloop transitions, 2 changer transitions 0/447 dead transitions. [2022-11-02 21:05:18,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 447 transitions, 1046 flow [2022-11-02 21:05:18,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:18,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-02 21:05:18,568 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2022-11-02 21:05:18,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-02 21:05:18,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-02 21:05:18,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:18,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-02 21:05:18,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:18,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:18,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:18,577 INFO L175 Difference]: Start difference. First operand has 446 places, 446 transitions, 1003 flow. Second operand 3 states and 1442 transitions. [2022-11-02 21:05:18,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 447 transitions, 1046 flow [2022-11-02 21:05:18,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 447 transitions, 1040 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:18,588 INFO L231 Difference]: Finished difference. Result has 443 places, 444 transitions, 1003 flow [2022-11-02 21:05:18,590 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1003, PETRI_PLACES=443, PETRI_TRANSITIONS=444} [2022-11-02 21:05:18,590 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -17 predicate places. [2022-11-02 21:05:18,590 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 444 transitions, 1003 flow [2022-11-02 21:05:18,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.0) internal successors, (1425), 3 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:18,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:18,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:18,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 21:05:18,592 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:18,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:18,592 INFO L85 PathProgramCache]: Analyzing trace with hash -610947594, now seen corresponding path program 1 times [2022-11-02 21:05:18,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:18,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052009105] [2022-11-02 21:05:18,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:18,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:18,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:18,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052009105] [2022-11-02 21:05:18,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052009105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:18,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:18,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:18,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884303567] [2022-11-02 21:05:18,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:18,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:18,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:18,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:18,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:18,645 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 504 [2022-11-02 21:05:18,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 444 transitions, 1003 flow. Second operand has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:18,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:18,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 504 [2022-11-02 21:05:18,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:19,091 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1377] thread2EXIT-->L100-7: Formula: (and (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem40#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread2Thread1of1ForFork0_thidvar0_4) (= v_thread2Thread1of1ForFork0_thidvar2_4 0) (= v_thread2Thread1of1ForFork0_thidvar1_4 0)) InVars {ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} OutVars{ULTIMATE.start_main_#t~mem40#1=|v_ULTIMATE.start_main_#t~mem40#1_5|, thread2Thread1of1ForFork0_thidvar2=v_thread2Thread1of1ForFork0_thidvar2_4, thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_4, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_4} AuxVars[] AssignedVars[][307], [Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 411#L100-7true, Black: 550#true, 530#(= |#race~count2~0| 0), Black: 586#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 575#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 574#(<= ~n1~0 0), Black: 523#true, 517#(= |#race~n2~0| 0), Black: 580#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), 594#(= |#race~get2~0| 0), Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), Black: 528#true, Black: 592#true, 525#(= |#race~count1~0| 0), 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 552#(= |#race~get1~0| 0), 597#true, 502#(= |#race~n1~0| 0)]) [2022-11-02 21:05:19,091 INFO L383 tUnfolder$Statistics]: this new event has 251 ancestors and is cut-off event [2022-11-02 21:05:19,091 INFO L386 tUnfolder$Statistics]: existing Event has 220 ancestors and is cut-off event [2022-11-02 21:05:19,091 INFO L386 tUnfolder$Statistics]: existing Event has 220 ancestors and is cut-off event [2022-11-02 21:05:19,092 INFO L386 tUnfolder$Statistics]: existing Event has 224 ancestors and is cut-off event [2022-11-02 21:05:19,113 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1302] L77-5-->L77-6: Formula: true InVars {} OutVars{thread2Thread1of1ForFork0_#t~nondet20=|v_thread2Thread1of1ForFork0_#t~nondet20_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_#t~nondet20][263], [Black: 542#(not |thread1Thread1of1ForFork1_#t~short2|), 418#L77-6true, Black: 550#true, 530#(= |#race~count2~0| 0), Black: 586#(and (<= ~n1~0 0) (not |thread1Thread1of1ForFork1_#t~short2|) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 575#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork1_~i~0 0)), Black: 574#(<= ~n1~0 0), Black: 523#true, 517#(= |#race~n2~0| 0), Black: 580#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), 594#(= |#race~get2~0| 0), Black: 557#(not |thread2Thread1of1ForFork0_#t~short13|), Black: 528#true, Black: 592#true, 525#(= |#race~count1~0| 0), 538#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 552#(= |#race~get1~0| 0), 198#L99-7true, 597#true, 502#(= |#race~n1~0| 0)]) [2022-11-02 21:05:19,113 INFO L383 tUnfolder$Statistics]: this new event has 234 ancestors and is cut-off event [2022-11-02 21:05:19,113 INFO L386 tUnfolder$Statistics]: existing Event has 247 ancestors and is cut-off event [2022-11-02 21:05:19,113 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-11-02 21:05:19,113 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is cut-off event [2022-11-02 21:05:19,121 INFO L130 PetriNetUnfolder]: 164/1996 cut-off events. [2022-11-02 21:05:19,121 INFO L131 PetriNetUnfolder]: For 68/85 co-relation queries the response was YES. [2022-11-02 21:05:19,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2454 conditions, 1996 events. 164/1996 cut-off events. For 68/85 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 13952 event pairs, 23 based on Foata normal form. 2/1791 useless extension candidates. Maximal degree in co-relation 2388. Up to 194 conditions per place. [2022-11-02 21:05:19,146 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 20 selfloop transitions, 2 changer transitions 0/444 dead transitions. [2022-11-02 21:05:19,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 444 transitions, 1048 flow [2022-11-02 21:05:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:19,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:19,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1427 transitions. [2022-11-02 21:05:19,151 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9437830687830688 [2022-11-02 21:05:19,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1427 transitions. [2022-11-02 21:05:19,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1427 transitions. [2022-11-02 21:05:19,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:19,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1427 transitions. [2022-11-02 21:05:19,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:19,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:19,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:19,160 INFO L175 Difference]: Start difference. First operand has 443 places, 444 transitions, 1003 flow. Second operand 3 states and 1427 transitions. [2022-11-02 21:05:19,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 444 transitions, 1048 flow [2022-11-02 21:05:19,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 444 transitions, 1048 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:05:19,172 INFO L231 Difference]: Finished difference. Result has 444 places, 443 transitions, 1005 flow [2022-11-02 21:05:19,173 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=441, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1005, PETRI_PLACES=444, PETRI_TRANSITIONS=443} [2022-11-02 21:05:19,174 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -16 predicate places. [2022-11-02 21:05:19,174 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 443 transitions, 1005 flow [2022-11-02 21:05:19,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:19,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:19,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:19,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 21:05:19,176 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:19,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:19,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1600808849, now seen corresponding path program 1 times [2022-11-02 21:05:19,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:19,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741489209] [2022-11-02 21:05:19,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:19,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:19,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:19,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:19,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741489209] [2022-11-02 21:05:19,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741489209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:19,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:19,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:05:19,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335089528] [2022-11-02 21:05:19,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:19,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:05:19,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:19,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:05:19,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:05:19,458 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 504 [2022-11-02 21:05:19,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 443 transitions, 1005 flow. Second operand has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:19,462 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:19,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 504 [2022-11-02 21:05:19,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:20,145 INFO L130 PetriNetUnfolder]: 382/2382 cut-off events. [2022-11-02 21:05:20,145 INFO L131 PetriNetUnfolder]: For 238/249 co-relation queries the response was YES. [2022-11-02 21:05:20,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3606 conditions, 2382 events. 382/2382 cut-off events. For 238/249 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 18568 event pairs, 177 based on Foata normal form. 10/2156 useless extension candidates. Maximal degree in co-relation 3537. Up to 642 conditions per place. [2022-11-02 21:05:20,164 INFO L137 encePairwiseOnDemand]: 490/504 looper letters, 117 selfloop transitions, 15 changer transitions 0/487 dead transitions. [2022-11-02 21:05:20,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 487 transitions, 1380 flow [2022-11-02 21:05:20,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 21:05:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 21:05:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4619 transitions. [2022-11-02 21:05:20,175 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8331529581529582 [2022-11-02 21:05:20,175 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4619 transitions. [2022-11-02 21:05:20,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4619 transitions. [2022-11-02 21:05:20,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:20,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4619 transitions. [2022-11-02 21:05:20,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 419.90909090909093) internal successors, (4619), 11 states have internal predecessors, (4619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 504.0) internal successors, (6048), 12 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,197 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 504.0) internal successors, (6048), 12 states have internal predecessors, (6048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,198 INFO L175 Difference]: Start difference. First operand has 444 places, 443 transitions, 1005 flow. Second operand 11 states and 4619 transitions. [2022-11-02 21:05:20,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 487 transitions, 1380 flow [2022-11-02 21:05:20,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 452 places, 487 transitions, 1376 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:20,209 INFO L231 Difference]: Finished difference. Result has 455 places, 447 transitions, 1064 flow [2022-11-02 21:05:20,210 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1064, PETRI_PLACES=455, PETRI_TRANSITIONS=447} [2022-11-02 21:05:20,211 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, -5 predicate places. [2022-11-02 21:05:20,211 INFO L495 AbstractCegarLoop]: Abstraction has has 455 places, 447 transitions, 1064 flow [2022-11-02 21:05:20,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 412.0) internal successors, (3296), 8 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:20,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:20,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 21:05:20,213 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:20,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1466617474, now seen corresponding path program 1 times [2022-11-02 21:05:20,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:20,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845121116] [2022-11-02 21:05:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:20,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:20,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:20,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:20,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845121116] [2022-11-02 21:05:20,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845121116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:20,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:20,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:05:20,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150561487] [2022-11-02 21:05:20,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:20,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:05:20,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:20,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:05:20,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:05:20,443 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 504 [2022-11-02 21:05:20,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 447 transitions, 1064 flow. Second operand has 8 states, 8 states have (on average 413.0) internal successors, (3304), 8 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:20,447 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:20,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 504 [2022-11-02 21:05:20,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:21,722 INFO L130 PetriNetUnfolder]: 573/4176 cut-off events. [2022-11-02 21:05:21,723 INFO L131 PetriNetUnfolder]: For 259/321 co-relation queries the response was YES. [2022-11-02 21:05:21,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5836 conditions, 4176 events. 573/4176 cut-off events. For 259/321 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 36645 event pairs, 182 based on Foata normal form. 4/3726 useless extension candidates. Maximal degree in co-relation 5761. Up to 608 conditions per place. [2022-11-02 21:05:21,760 INFO L137 encePairwiseOnDemand]: 491/504 looper letters, 111 selfloop transitions, 18 changer transitions 0/486 dead transitions. [2022-11-02 21:05:21,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 486 transitions, 1439 flow [2022-11-02 21:05:21,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:05:21,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-02 21:05:21,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4199 transitions. [2022-11-02 21:05:21,769 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8331349206349207 [2022-11-02 21:05:21,770 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4199 transitions. [2022-11-02 21:05:21,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4199 transitions. [2022-11-02 21:05:21,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:21,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4199 transitions. [2022-11-02 21:05:21,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 419.9) internal successors, (4199), 10 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:21,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 504.0) internal successors, (5544), 11 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:21,790 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 504.0) internal successors, (5544), 11 states have internal predecessors, (5544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:21,790 INFO L175 Difference]: Start difference. First operand has 455 places, 447 transitions, 1064 flow. Second operand 10 states and 4199 transitions. [2022-11-02 21:05:21,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 486 transitions, 1439 flow [2022-11-02 21:05:21,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 486 transitions, 1420 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-02 21:05:21,802 INFO L231 Difference]: Finished difference. Result has 462 places, 456 transitions, 1156 flow [2022-11-02 21:05:21,803 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1045, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1156, PETRI_PLACES=462, PETRI_TRANSITIONS=456} [2022-11-02 21:05:21,803 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, 2 predicate places. [2022-11-02 21:05:21,804 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 456 transitions, 1156 flow [2022-11-02 21:05:21,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 413.0) internal successors, (3304), 8 states have internal predecessors, (3304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:21,805 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:21,805 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:21,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 21:05:21,806 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:21,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:21,806 INFO L85 PathProgramCache]: Analyzing trace with hash -528310275, now seen corresponding path program 1 times [2022-11-02 21:05:21,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:21,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268169317] [2022-11-02 21:05:21,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:21,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:21,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:21,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:21,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268169317] [2022-11-02 21:05:21,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268169317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:21,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:21,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:21,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578331235] [2022-11-02 21:05:21,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:21,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:21,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:21,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:21,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:21,927 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 484 out of 504 [2022-11-02 21:05:21,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 456 transitions, 1156 flow. Second operand has 3 states, 3 states have (on average 485.6666666666667) internal successors, (1457), 3 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:21,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:21,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 484 of 504 [2022-11-02 21:05:21,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:22,460 INFO L130 PetriNetUnfolder]: 164/3019 cut-off events. [2022-11-02 21:05:22,460 INFO L131 PetriNetUnfolder]: For 219/227 co-relation queries the response was YES. [2022-11-02 21:05:22,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3686 conditions, 3019 events. 164/3019 cut-off events. For 219/227 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 22582 event pairs, 3 based on Foata normal form. 0/2754 useless extension candidates. Maximal degree in co-relation 3607. Up to 55 conditions per place. [2022-11-02 21:05:22,500 INFO L137 encePairwiseOnDemand]: 501/504 looper letters, 10 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2022-11-02 21:05:22,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 460 transitions, 1191 flow [2022-11-02 21:05:22,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:22,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1465 transitions. [2022-11-02 21:05:22,507 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.968915343915344 [2022-11-02 21:05:22,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1465 transitions. [2022-11-02 21:05:22,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1465 transitions. [2022-11-02 21:05:22,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:22,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1465 transitions. [2022-11-02 21:05:22,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 488.3333333333333) internal successors, (1465), 3 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:22,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:22,515 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:22,515 INFO L175 Difference]: Start difference. First operand has 462 places, 456 transitions, 1156 flow. Second operand 3 states and 1465 transitions. [2022-11-02 21:05:22,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 460 transitions, 1191 flow [2022-11-02 21:05:22,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 460 transitions, 1182 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-02 21:05:22,527 INFO L231 Difference]: Finished difference. Result has 462 places, 456 transitions, 1155 flow [2022-11-02 21:05:22,528 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1147, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1155, PETRI_PLACES=462, PETRI_TRANSITIONS=456} [2022-11-02 21:05:22,529 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, 2 predicate places. [2022-11-02 21:05:22,529 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 456 transitions, 1155 flow [2022-11-02 21:05:22,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 485.6666666666667) internal successors, (1457), 3 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:22,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:22,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:22,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 21:05:22,531 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:22,531 INFO L85 PathProgramCache]: Analyzing trace with hash 17661441, now seen corresponding path program 1 times [2022-11-02 21:05:22,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:22,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187407517] [2022-11-02 21:05:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:22,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:22,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:23,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:23,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:23,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187407517] [2022-11-02 21:05:23,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187407517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:23,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:23,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:23,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720191028] [2022-11-02 21:05:23,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:23,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:05:23,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:23,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:05:23,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:05:23,072 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 504 [2022-11-02 21:05:23,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 456 transitions, 1155 flow. Second operand has 6 states, 6 states have (on average 412.8333333333333) internal successors, (2477), 6 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:23,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:23,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 504 [2022-11-02 21:05:23,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:30,680 INFO L130 PetriNetUnfolder]: 9776/31982 cut-off events. [2022-11-02 21:05:30,680 INFO L131 PetriNetUnfolder]: For 1016/1080 co-relation queries the response was YES. [2022-11-02 21:05:30,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51034 conditions, 31982 events. 9776/31982 cut-off events. For 1016/1080 co-relation queries the response was YES. Maximal size of possible extension queue 552. Compared 354626 event pairs, 7908 based on Foata normal form. 12/29056 useless extension candidates. Maximal degree in co-relation 50954. Up to 13523 conditions per place. [2022-11-02 21:05:30,974 INFO L137 encePairwiseOnDemand]: 499/504 looper letters, 168 selfloop transitions, 4 changer transitions 0/551 dead transitions. [2022-11-02 21:05:30,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 551 transitions, 1689 flow [2022-11-02 21:05:30,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:05:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:05:30,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2633 transitions. [2022-11-02 21:05:30,979 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8707010582010583 [2022-11-02 21:05:30,979 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2633 transitions. [2022-11-02 21:05:30,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2633 transitions. [2022-11-02 21:05:30,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:30,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2633 transitions. [2022-11-02 21:05:30,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 438.8333333333333) internal successors, (2633), 6 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:30,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:30,992 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:30,992 INFO L175 Difference]: Start difference. First operand has 462 places, 456 transitions, 1155 flow. Second operand 6 states and 2633 transitions. [2022-11-02 21:05:30,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 551 transitions, 1689 flow [2022-11-02 21:05:31,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 551 transitions, 1685 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:05:31,049 INFO L231 Difference]: Finished difference. Result has 464 places, 455 transitions, 1157 flow [2022-11-02 21:05:31,050 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1149, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1157, PETRI_PLACES=464, PETRI_TRANSITIONS=455} [2022-11-02 21:05:31,051 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, 4 predicate places. [2022-11-02 21:05:31,051 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 455 transitions, 1157 flow [2022-11-02 21:05:31,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.8333333333333) internal successors, (2477), 6 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:31,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:31,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:31,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 21:05:31,052 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:31,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:31,053 INFO L85 PathProgramCache]: Analyzing trace with hash 267480345, now seen corresponding path program 1 times [2022-11-02 21:05:31,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:31,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138725065] [2022-11-02 21:05:31,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:31,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:31,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:05:31,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:31,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138725065] [2022-11-02 21:05:31,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138725065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:31,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:31,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 21:05:31,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877314058] [2022-11-02 21:05:31,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:31,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:05:31,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:31,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:05:31,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:05:31,275 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 504 [2022-11-02 21:05:31,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 455 transitions, 1157 flow. Second operand has 8 states, 8 states have (on average 413.125) internal successors, (3305), 8 states have internal predecessors, (3305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:31,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:31,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 504 [2022-11-02 21:05:31,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:32,387 INFO L130 PetriNetUnfolder]: 635/3873 cut-off events. [2022-11-02 21:05:32,388 INFO L131 PetriNetUnfolder]: For 597/649 co-relation queries the response was YES. [2022-11-02 21:05:32,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5874 conditions, 3873 events. 635/3873 cut-off events. For 597/649 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 35177 event pairs, 292 based on Foata normal form. 27/3426 useless extension candidates. Maximal degree in co-relation 5794. Up to 994 conditions per place. [2022-11-02 21:05:32,438 INFO L137 encePairwiseOnDemand]: 493/504 looper letters, 110 selfloop transitions, 13 changer transitions 0/484 dead transitions. [2022-11-02 21:05:32,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 484 transitions, 1504 flow [2022-11-02 21:05:32,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:05:32,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:05:32,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3784 transitions. [2022-11-02 21:05:32,444 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8342151675485009 [2022-11-02 21:05:32,444 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3784 transitions. [2022-11-02 21:05:32,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3784 transitions. [2022-11-02 21:05:32,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:32,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3784 transitions. [2022-11-02 21:05:32,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 420.44444444444446) internal successors, (3784), 9 states have internal predecessors, (3784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:32,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 504.0) internal successors, (5040), 10 states have internal predecessors, (5040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:32,460 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 504.0) internal successors, (5040), 10 states have internal predecessors, (5040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:32,461 INFO L175 Difference]: Start difference. First operand has 464 places, 455 transitions, 1157 flow. Second operand 9 states and 3784 transitions. [2022-11-02 21:05:32,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 484 transitions, 1504 flow [2022-11-02 21:05:32,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 484 transitions, 1497 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:05:32,478 INFO L231 Difference]: Finished difference. Result has 471 places, 460 transitions, 1225 flow [2022-11-02 21:05:32,480 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1150, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1225, PETRI_PLACES=471, PETRI_TRANSITIONS=460} [2022-11-02 21:05:32,480 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, 11 predicate places. [2022-11-02 21:05:32,481 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 460 transitions, 1225 flow [2022-11-02 21:05:32,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 413.125) internal successors, (3305), 8 states have internal predecessors, (3305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:32,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:32,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:32,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 21:05:32,483 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:32,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:32,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1645321303, now seen corresponding path program 1 times [2022-11-02 21:05:32,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:32,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796606573] [2022-11-02 21:05:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:32,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:33,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 21:05:33,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:33,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796606573] [2022-11-02 21:05:33,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796606573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:33,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:33,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:33,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419069223] [2022-11-02 21:05:33,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:33,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:05:33,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:33,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:05:33,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:05:33,115 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 504 [2022-11-02 21:05:33,118 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 460 transitions, 1225 flow. Second operand has 6 states, 6 states have (on average 406.6666666666667) internal successors, (2440), 6 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:33,118 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:33,118 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 504 [2022-11-02 21:05:33,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:40,252 INFO L130 PetriNetUnfolder]: 11451/30124 cut-off events. [2022-11-02 21:05:40,252 INFO L131 PetriNetUnfolder]: For 2029/2095 co-relation queries the response was YES. [2022-11-02 21:05:40,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51867 conditions, 30124 events. 11451/30124 cut-off events. For 2029/2095 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 297178 event pairs, 2492 based on Foata normal form. 6/27790 useless extension candidates. Maximal degree in co-relation 51783. Up to 11076 conditions per place. [2022-11-02 21:05:40,591 INFO L137 encePairwiseOnDemand]: 497/504 looper letters, 218 selfloop transitions, 5 changer transitions 0/593 dead transitions. [2022-11-02 21:05:40,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 593 transitions, 1948 flow [2022-11-02 21:05:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:05:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:05:40,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2638 transitions. [2022-11-02 21:05:40,597 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8723544973544973 [2022-11-02 21:05:40,597 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2638 transitions. [2022-11-02 21:05:40,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2638 transitions. [2022-11-02 21:05:40,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:40,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2638 transitions. [2022-11-02 21:05:40,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 439.6666666666667) internal successors, (2638), 6 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:40,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:40,611 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:40,611 INFO L175 Difference]: Start difference. First operand has 471 places, 460 transitions, 1225 flow. Second operand 6 states and 2638 transitions. [2022-11-02 21:05:40,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 593 transitions, 1948 flow [2022-11-02 21:05:40,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 593 transitions, 1933 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:05:40,645 INFO L231 Difference]: Finished difference. Result has 469 places, 458 transitions, 1216 flow [2022-11-02 21:05:40,646 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1206, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1216, PETRI_PLACES=469, PETRI_TRANSITIONS=458} [2022-11-02 21:05:40,647 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, 9 predicate places. [2022-11-02 21:05:40,647 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 458 transitions, 1216 flow [2022-11-02 21:05:40,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 406.6666666666667) internal successors, (2440), 6 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:40,648 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:40,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:40,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-02 21:05:40,649 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:40,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:40,650 INFO L85 PathProgramCache]: Analyzing trace with hash -400649934, now seen corresponding path program 1 times [2022-11-02 21:05:40,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:40,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283166128] [2022-11-02 21:05:40,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:40,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:41,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 21:05:41,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:41,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283166128] [2022-11-02 21:05:41,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283166128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:41,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:41,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:41,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348122850] [2022-11-02 21:05:41,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:41,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:05:41,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:41,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:05:41,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:05:41,384 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 504 [2022-11-02 21:05:41,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 458 transitions, 1216 flow. Second operand has 6 states, 6 states have (on average 406.8333333333333) internal successors, (2441), 6 states have internal predecessors, (2441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:41,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:41,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 504 [2022-11-02 21:05:41,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:48,228 INFO L130 PetriNetUnfolder]: 10794/29153 cut-off events. [2022-11-02 21:05:48,228 INFO L131 PetriNetUnfolder]: For 3379/3782 co-relation queries the response was YES. [2022-11-02 21:05:48,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50850 conditions, 29153 events. 10794/29153 cut-off events. For 3379/3782 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 291245 event pairs, 2166 based on Foata normal form. 27/27254 useless extension candidates. Maximal degree in co-relation 50768. Up to 11053 conditions per place. [2022-11-02 21:05:48,594 INFO L137 encePairwiseOnDemand]: 497/504 looper letters, 222 selfloop transitions, 5 changer transitions 0/597 dead transitions. [2022-11-02 21:05:48,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 597 transitions, 1993 flow [2022-11-02 21:05:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:05:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:05:48,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2642 transitions. [2022-11-02 21:05:48,599 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8736772486772487 [2022-11-02 21:05:48,599 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2642 transitions. [2022-11-02 21:05:48,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2642 transitions. [2022-11-02 21:05:48,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:48,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2642 transitions. [2022-11-02 21:05:48,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 440.3333333333333) internal successors, (2642), 6 states have internal predecessors, (2642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:48,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:48,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:48,612 INFO L175 Difference]: Start difference. First operand has 469 places, 458 transitions, 1216 flow. Second operand 6 states and 2642 transitions. [2022-11-02 21:05:48,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 597 transitions, 1993 flow [2022-11-02 21:05:48,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 597 transitions, 1951 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:05:48,642 INFO L231 Difference]: Finished difference. Result has 467 places, 456 transitions, 1212 flow [2022-11-02 21:05:48,643 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1212, PETRI_PLACES=467, PETRI_TRANSITIONS=456} [2022-11-02 21:05:48,643 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, 7 predicate places. [2022-11-02 21:05:48,644 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 456 transitions, 1212 flow [2022-11-02 21:05:48,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 406.8333333333333) internal successors, (2441), 6 states have internal predecessors, (2441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:48,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:48,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:48,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-02 21:05:48,645 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:48,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:48,646 INFO L85 PathProgramCache]: Analyzing trace with hash -922929411, now seen corresponding path program 1 times [2022-11-02 21:05:48,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:48,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298798669] [2022-11-02 21:05:48,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:48,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 21:05:49,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:49,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298798669] [2022-11-02 21:05:49,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298798669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:49,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:49,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:49,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343065758] [2022-11-02 21:05:49,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:49,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:05:49,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:49,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:05:49,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:05:49,150 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 504 [2022-11-02 21:05:49,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 456 transitions, 1212 flow. Second operand has 6 states, 6 states have (on average 407.6666666666667) internal successors, (2446), 6 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:49,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:49,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 504 [2022-11-02 21:05:49,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:56,463 INFO L130 PetriNetUnfolder]: 10294/31050 cut-off events. [2022-11-02 21:05:56,463 INFO L131 PetriNetUnfolder]: For 2703/2769 co-relation queries the response was YES. [2022-11-02 21:05:56,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52051 conditions, 31050 events. 10294/31050 cut-off events. For 2703/2769 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 329071 event pairs, 3983 based on Foata normal form. 6/29330 useless extension candidates. Maximal degree in co-relation 51969. Up to 7072 conditions per place. [2022-11-02 21:05:56,865 INFO L137 encePairwiseOnDemand]: 497/504 looper letters, 206 selfloop transitions, 5 changer transitions 0/581 dead transitions. [2022-11-02 21:05:56,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 581 transitions, 1927 flow [2022-11-02 21:05:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:05:56,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:05:56,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2626 transitions. [2022-11-02 21:05:56,869 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8683862433862434 [2022-11-02 21:05:56,869 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2626 transitions. [2022-11-02 21:05:56,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2626 transitions. [2022-11-02 21:05:56,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:56,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2626 transitions. [2022-11-02 21:05:56,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 437.6666666666667) internal successors, (2626), 6 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:56,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:56,880 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 504.0) internal successors, (3528), 7 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:56,880 INFO L175 Difference]: Start difference. First operand has 467 places, 456 transitions, 1212 flow. Second operand 6 states and 2626 transitions. [2022-11-02 21:05:56,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 581 transitions, 1927 flow [2022-11-02 21:05:56,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 581 transitions, 1885 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:05:56,914 INFO L231 Difference]: Finished difference. Result has 465 places, 454 transitions, 1208 flow [2022-11-02 21:05:56,915 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1208, PETRI_PLACES=465, PETRI_TRANSITIONS=454} [2022-11-02 21:05:56,916 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, 5 predicate places. [2022-11-02 21:05:56,916 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 454 transitions, 1208 flow [2022-11-02 21:05:56,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 407.6666666666667) internal successors, (2446), 6 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:56,917 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:56,917 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:56,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-02 21:05:56,918 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:56,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:56,918 INFO L85 PathProgramCache]: Analyzing trace with hash 589114386, now seen corresponding path program 1 times [2022-11-02 21:05:56,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:56,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456627047] [2022-11-02 21:05:56,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:56,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:56,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:56,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456627047] [2022-11-02 21:05:56,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456627047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:56,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:56,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:56,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321249901] [2022-11-02 21:05:56,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:56,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:56,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:56,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:56,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:56,986 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 504 [2022-11-02 21:05:56,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 454 transitions, 1208 flow. Second operand has 3 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:56,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:56,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 504 [2022-11-02 21:05:56,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:58,118 INFO L130 PetriNetUnfolder]: 313/4882 cut-off events. [2022-11-02 21:05:58,118 INFO L131 PetriNetUnfolder]: For 715/715 co-relation queries the response was YES. [2022-11-02 21:05:58,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6565 conditions, 4882 events. 313/4882 cut-off events. For 715/715 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 45028 event pairs, 65 based on Foata normal form. 0/4554 useless extension candidates. Maximal degree in co-relation 6480. Up to 189 conditions per place. [2022-11-02 21:05:58,160 INFO L137 encePairwiseOnDemand]: 498/504 looper letters, 21 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-11-02 21:05:58,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 461 transitions, 1271 flow [2022-11-02 21:05:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:58,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-02 21:05:58,164 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9623015873015873 [2022-11-02 21:05:58,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-02 21:05:58,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-02 21:05:58,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:58,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-02 21:05:58,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,173 INFO L175 Difference]: Start difference. First operand has 465 places, 454 transitions, 1208 flow. Second operand 3 states and 1455 transitions. [2022-11-02 21:05:58,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 461 transitions, 1271 flow [2022-11-02 21:05:58,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 461 transitions, 1261 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:05:58,197 INFO L231 Difference]: Finished difference. Result has 464 places, 456 transitions, 1222 flow [2022-11-02 21:05:58,197 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=454, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1222, PETRI_PLACES=464, PETRI_TRANSITIONS=456} [2022-11-02 21:05:58,198 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, 4 predicate places. [2022-11-02 21:05:58,198 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 456 transitions, 1222 flow [2022-11-02 21:05:58,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,199 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:58,199 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:58,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-02 21:05:58,200 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:58,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:58,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1685276742, now seen corresponding path program 1 times [2022-11-02 21:05:58,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:58,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650117966] [2022-11-02 21:05:58,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:58,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:58,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:58,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:58,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:58,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650117966] [2022-11-02 21:05:58,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650117966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:58,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:58,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:05:58,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100340345] [2022-11-02 21:05:58,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:58,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:58,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:58,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:58,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:58,289 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 504 [2022-11-02 21:05:58,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 456 transitions, 1222 flow. Second operand has 3 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:58,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 504 [2022-11-02 21:05:58,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:05:58,899 INFO L130 PetriNetUnfolder]: 222/3006 cut-off events. [2022-11-02 21:05:58,899 INFO L131 PetriNetUnfolder]: For 530/552 co-relation queries the response was YES. [2022-11-02 21:05:58,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4088 conditions, 3006 events. 222/3006 cut-off events. For 530/552 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 22725 event pairs, 46 based on Foata normal form. 28/2889 useless extension candidates. Maximal degree in co-relation 4002. Up to 176 conditions per place. [2022-11-02 21:05:58,928 INFO L137 encePairwiseOnDemand]: 500/504 looper letters, 21 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2022-11-02 21:05:58,928 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 461 transitions, 1285 flow [2022-11-02 21:05:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:05:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1451 transitions. [2022-11-02 21:05:58,931 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9596560846560847 [2022-11-02 21:05:58,931 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1451 transitions. [2022-11-02 21:05:58,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1451 transitions. [2022-11-02 21:05:58,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:05:58,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1451 transitions. [2022-11-02 21:05:58,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.6666666666667) internal successors, (1451), 3 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,939 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 504.0) internal successors, (2016), 4 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,939 INFO L175 Difference]: Start difference. First operand has 464 places, 456 transitions, 1222 flow. Second operand 3 states and 1451 transitions. [2022-11-02 21:05:58,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 461 transitions, 1285 flow [2022-11-02 21:05:58,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 461 transitions, 1283 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:05:58,960 INFO L231 Difference]: Finished difference. Result has 467 places, 458 transitions, 1244 flow [2022-11-02 21:05:58,961 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=504, PETRI_DIFFERENCE_MINUEND_FLOW=1220, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1244, PETRI_PLACES=467, PETRI_TRANSITIONS=458} [2022-11-02 21:05:58,961 INFO L287 CegarLoopForPetriNet]: 460 programPoint places, 7 predicate places. [2022-11-02 21:05:58,961 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 458 transitions, 1244 flow [2022-11-02 21:05:58,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:58,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:05:58,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:58,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-02 21:05:58,963 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-11-02 21:05:58,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:58,964 INFO L85 PathProgramCache]: Analyzing trace with hash -2097304232, now seen corresponding path program 1 times [2022-11-02 21:05:58,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:58,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990332387] [2022-11-02 21:05:58,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:58,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:59,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 21:05:59,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:59,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990332387] [2022-11-02 21:05:59,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990332387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:59,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:59,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:59,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885665192] [2022-11-02 21:05:59,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:59,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:05:59,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:59,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:05:59,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:05:59,720 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 504 [2022-11-02 21:05:59,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 458 transitions, 1244 flow. Second operand has 6 states, 6 states have (on average 407.8333333333333) internal successors, (2447), 6 states have internal predecessors, (2447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:59,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:05:59,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 504 [2022-11-02 21:05:59,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand