./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN --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 b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da --- 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-6b4ec56 [2022-11-20 11:23:56,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:23:56,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:23:56,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:23:56,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:23:56,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:23:56,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:23:56,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:23:56,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:23:56,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:23:56,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:23:56,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:23:56,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:23:56,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:23:56,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:23:56,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:23:56,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:23:56,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:23:56,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:23:56,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:23:56,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:23:56,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:23:56,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:23:56,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:23:56,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:23:56,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:23:56,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:23:56,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:23:56,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:23:56,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:23:56,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:23:56,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:23:56,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:23:56,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:23:56,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:23:56,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:23:56,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:23:56,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:23:56,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:23:56,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:23:56,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:23:56,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:23:56,551 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:23:56,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:23:56,565 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:23:56,565 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:23:56,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:23:56,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:23:56,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:23:56,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:23:56,568 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:23:56,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:23:56,570 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:23:56,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:23:56,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:23:56,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:23:56,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:23:56,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:23:56,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:23:56,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:23:56,572 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:23:56,572 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:23:56,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:23:56,573 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:23:56,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:23:56,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:23:56,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:23:56,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:23:56,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:23:56,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:23:56,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:23:56,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:23:56,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:23:56,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:23:56,576 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:23:56,577 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:23:56,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:23:56,577 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_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78a1de0122078b80177387d59eedcdf8d73ccef913955b4bda0200e53e1d3da [2022-11-20 11:23:56,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:23:56,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:23:56,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:23:56,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:23:56,994 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:23:56,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2022-11-20 11:24:00,747 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:24:01,014 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:24:01,015 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c [2022-11-20 11:24:01,024 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/data/ff1745545/2cbfac52b3214407b030d9cce2cd81cb/FLAG4468fc453 [2022-11-20 11:24:01,043 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/data/ff1745545/2cbfac52b3214407b030d9cce2cd81cb [2022-11-20 11:24:01,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:24:01,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:24:01,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:24:01,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:24:01,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:24:01,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568553ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01, skipping insertion in model container [2022-11-20 11:24:01,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:24:01,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:24:01,383 WARN L237 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_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-11-20 11:24:01,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:24:01,421 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:24:01,463 WARN L237 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_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/sv-benchmarks/c/weaver/chl-array-int-symm.wvr.c[2482,2495] [2022-11-20 11:24:01,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:24:01,488 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:24:01,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01 WrapperNode [2022-11-20 11:24:01,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:24:01,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:24:01,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:24:01,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:24:01,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,564 INFO L138 Inliner]: procedures = 25, calls = 39, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 364 [2022-11-20 11:24:01,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:24:01,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:24:01,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:24:01,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:24:01,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:24:01,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:24:01,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:24:01,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:24:01,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (1/1) ... [2022-11-20 11:24:01,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:24:01,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:24:01,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:24:01,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:24:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:24:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:24:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:24:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:24:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:24:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:24:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:24:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:24:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:24:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:24:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:24:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:24:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:24:01,756 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:24:01,952 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:24:01,955 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:24:02,975 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:24:03,001 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:24:03,002 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 11:24:03,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:03 BoogieIcfgContainer [2022-11-20 11:24:03,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:24:03,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:24:03,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:24:03,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:24:03,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:24:01" (1/3) ... [2022-11-20 11:24:03,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7aede1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:03, skipping insertion in model container [2022-11-20 11:24:03,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:24:01" (2/3) ... [2022-11-20 11:24:03,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7aede1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:24:03, skipping insertion in model container [2022-11-20 11:24:03,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:03" (3/3) ... [2022-11-20 11:24:03,017 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-symm.wvr.c [2022-11-20 11:24:03,028 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:24:03,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:24:03,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-11-20 11:24:03,042 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:24:03,205 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 11:24:03,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 453 places, 472 transitions, 960 flow [2022-11-20 11:24:03,624 INFO L130 PetriNetUnfolder]: 26/470 cut-off events. [2022-11-20 11:24:03,624 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:24:03,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 470 events. 26/470 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 933 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 271. Up to 3 conditions per place. [2022-11-20 11:24:03,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 453 places, 472 transitions, 960 flow [2022-11-20 11:24:03,648 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 432 places, 449 transitions, 910 flow [2022-11-20 11:24:03,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:24:03,667 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;@41c2a8af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:24:03,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-11-20 11:24:03,672 INFO L130 PetriNetUnfolder]: 0/24 cut-off events. [2022-11-20 11:24:03,672 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:24:03,672 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:03,674 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:03,675 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash -264134063, now seen corresponding path program 1 times [2022-11-20 11:24:03,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:03,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46214335] [2022-11-20 11:24:03,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:03,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:03,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:03,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:03,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46214335] [2022-11-20 11:24:03,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46214335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:03,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:03,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:03,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681962783] [2022-11-20 11:24:03,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:03,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:03,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:04,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:04,015 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 472 [2022-11-20 11:24:04,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 449 transitions, 910 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:04,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:04,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 472 [2022-11-20 11:24:04,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:04,649 INFO L130 PetriNetUnfolder]: 96/1752 cut-off events. [2022-11-20 11:24:04,649 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-11-20 11:24:04,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1908 conditions, 1752 events. 96/1752 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 11513 event pairs, 48 based on Foata normal form. 36/1492 useless extension candidates. Maximal degree in co-relation 1554. Up to 127 conditions per place. [2022-11-20 11:24:04,673 INFO L137 encePairwiseOnDemand]: 455/472 looper letters, 22 selfloop transitions, 2 changer transitions 6/434 dead transitions. [2022-11-20 11:24:04,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 434 transitions, 928 flow [2022-11-20 11:24:04,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:04,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1332 transitions. [2022-11-20 11:24:04,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.940677966101695 [2022-11-20 11:24:04,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1332 transitions. [2022-11-20 11:24:04,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1332 transitions. [2022-11-20 11:24:04,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:04,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1332 transitions. [2022-11-20 11:24:04,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.0) internal successors, (1332), 3 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:04,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:04,741 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:04,743 INFO L175 Difference]: Start difference. First operand has 432 places, 449 transitions, 910 flow. Second operand 3 states and 1332 transitions. [2022-11-20 11:24:04,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 434 transitions, 928 flow [2022-11-20 11:24:04,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 434 transitions, 920 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:24:04,769 INFO L231 Difference]: Finished difference. Result has 429 places, 428 transitions, 864 flow [2022-11-20 11:24:04,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=429, PETRI_TRANSITIONS=428} [2022-11-20 11:24:04,779 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -3 predicate places. [2022-11-20 11:24:04,779 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 428 transitions, 864 flow [2022-11-20 11:24:04,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:04,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:04,782 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:04,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:24:04,782 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:04,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash -151250792, now seen corresponding path program 1 times [2022-11-20 11:24:04,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:04,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5369436] [2022-11-20 11:24:04,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:04,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:04,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:04,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:04,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5369436] [2022-11-20 11:24:04,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5369436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:04,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:04,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:04,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735685785] [2022-11-20 11:24:04,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:04,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:04,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:04,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:04,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:04,930 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 472 [2022-11-20 11:24:04,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 428 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:04,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:04,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 472 [2022-11-20 11:24:04,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:05,490 INFO L130 PetriNetUnfolder]: 101/1740 cut-off events. [2022-11-20 11:24:05,491 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-20 11:24:05,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1885 conditions, 1740 events. 101/1740 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 11345 event pairs, 48 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1852. Up to 131 conditions per place. [2022-11-20 11:24:05,513 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 22 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-20 11:24:05,514 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 427 transitions, 910 flow [2022-11-20 11:24:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:05,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:05,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1318 transitions. [2022-11-20 11:24:05,519 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9307909604519774 [2022-11-20 11:24:05,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1318 transitions. [2022-11-20 11:24:05,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1318 transitions. [2022-11-20 11:24:05,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:05,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1318 transitions. [2022-11-20 11:24:05,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:05,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:05,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:05,531 INFO L175 Difference]: Start difference. First operand has 429 places, 428 transitions, 864 flow. Second operand 3 states and 1318 transitions. [2022-11-20 11:24:05,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 427 transitions, 910 flow [2022-11-20 11:24:05,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 427 transitions, 906 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:24:05,541 INFO L231 Difference]: Finished difference. Result has 422 places, 427 transitions, 862 flow [2022-11-20 11:24:05,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=420, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=422, PETRI_TRANSITIONS=427} [2022-11-20 11:24:05,544 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -10 predicate places. [2022-11-20 11:24:05,544 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 427 transitions, 862 flow [2022-11-20 11:24:05,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:05,546 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:05,546 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:05,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:24:05,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:05,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1968287616, now seen corresponding path program 1 times [2022-11-20 11:24:05,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:05,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089741832] [2022-11-20 11:24:05,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:05,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:05,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:05,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:05,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089741832] [2022-11-20 11:24:05,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089741832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:05,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:05,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:05,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292756153] [2022-11-20 11:24:05,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:05,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:05,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:05,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:05,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:05,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-20 11:24:05,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 427 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:05,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:05,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-20 11:24:05,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:06,068 INFO L130 PetriNetUnfolder]: 62/1390 cut-off events. [2022-11-20 11:24:06,068 INFO L131 PetriNetUnfolder]: For 6/7 co-relation queries the response was YES. [2022-11-20 11:24:06,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1470 conditions, 1390 events. 62/1390 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8182 event pairs, 24 based on Foata normal form. 0/1187 useless extension candidates. Maximal degree in co-relation 1429. Up to 67 conditions per place. [2022-11-20 11:24:06,085 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 15 selfloop transitions, 1 changer transitions 0/422 dead transitions. [2022-11-20 11:24:06,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 422 transitions, 884 flow [2022-11-20 11:24:06,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-20 11:24:06,091 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.934322033898305 [2022-11-20 11:24:06,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-20 11:24:06,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-20 11:24:06,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:06,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-20 11:24:06,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:06,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:06,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:06,104 INFO L175 Difference]: Start difference. First operand has 422 places, 427 transitions, 862 flow. Second operand 3 states and 1323 transitions. [2022-11-20 11:24:06,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 422 transitions, 884 flow [2022-11-20 11:24:06,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 422 transitions, 880 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:24:06,114 INFO L231 Difference]: Finished difference. Result has 417 places, 422 transitions, 850 flow [2022-11-20 11:24:06,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=422, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=417, PETRI_TRANSITIONS=422} [2022-11-20 11:24:06,118 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -15 predicate places. [2022-11-20 11:24:06,118 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 422 transitions, 850 flow [2022-11-20 11:24:06,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:06,119 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:06,120 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:06,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:24:06,120 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:06,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:06,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1772562868, now seen corresponding path program 1 times [2022-11-20 11:24:06,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:06,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603975035] [2022-11-20 11:24:06,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:06,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:06,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:06,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:06,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603975035] [2022-11-20 11:24:06,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603975035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:06,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:06,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:06,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154451265] [2022-11-20 11:24:06,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:06,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:06,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:06,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:06,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:06,289 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-20 11:24:06,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 422 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:06,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:06,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-20 11:24:06,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:06,699 INFO L130 PetriNetUnfolder]: 99/1449 cut-off events. [2022-11-20 11:24:06,699 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-20 11:24:06,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1449 events. 99/1449 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8505 event pairs, 48 based on Foata normal form. 0/1235 useless extension candidates. Maximal degree in co-relation 1564. Up to 142 conditions per place. [2022-11-20 11:24:06,715 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 19 selfloop transitions, 2 changer transitions 0/421 dead transitions. [2022-11-20 11:24:06,715 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 421 transitions, 890 flow [2022-11-20 11:24:06,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:06,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:06,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-20 11:24:06,721 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9350282485875706 [2022-11-20 11:24:06,721 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-20 11:24:06,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-20 11:24:06,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:06,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-20 11:24:06,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:06,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:06,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:06,741 INFO L175 Difference]: Start difference. First operand has 417 places, 422 transitions, 850 flow. Second operand 3 states and 1324 transitions. [2022-11-20 11:24:06,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 421 transitions, 890 flow [2022-11-20 11:24:06,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 421 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:24:06,753 INFO L231 Difference]: Finished difference. Result has 417 places, 421 transitions, 851 flow [2022-11-20 11:24:06,754 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=417, PETRI_TRANSITIONS=421} [2022-11-20 11:24:06,757 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -15 predicate places. [2022-11-20 11:24:06,758 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 421 transitions, 851 flow [2022-11-20 11:24:06,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:06,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:06,760 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:06,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:24:06,760 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:06,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:06,761 INFO L85 PathProgramCache]: Analyzing trace with hash 740670494, now seen corresponding path program 1 times [2022-11-20 11:24:06,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:06,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118629240] [2022-11-20 11:24:06,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:06,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:07,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:07,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118629240] [2022-11-20 11:24:07,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118629240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:07,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:07,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:24:07,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790267360] [2022-11-20 11:24:07,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:07,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:24:07,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:07,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:24:07,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:24:07,511 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 472 [2022-11-20 11:24:07,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 421 transitions, 851 flow. Second operand has 6 states, 6 states have (on average 359.8333333333333) internal successors, (2159), 6 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:07,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:07,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 472 [2022-11-20 11:24:07,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:15,532 INFO L130 PetriNetUnfolder]: 8692/30576 cut-off events. [2022-11-20 11:24:15,533 INFO L131 PetriNetUnfolder]: For 68/78 co-relation queries the response was YES. [2022-11-20 11:24:15,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43583 conditions, 30576 events. 8692/30576 cut-off events. For 68/78 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 354954 event pairs, 7968 based on Foata normal form. 0/25814 useless extension candidates. Maximal degree in co-relation 43544. Up to 12966 conditions per place. [2022-11-20 11:24:15,779 INFO L137 encePairwiseOnDemand]: 460/472 looper letters, 86 selfloop transitions, 10 changer transitions 0/419 dead transitions. [2022-11-20 11:24:15,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 419 transitions, 1039 flow [2022-11-20 11:24:15,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:24:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:24:15,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2246 transitions. [2022-11-20 11:24:15,789 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7930790960451978 [2022-11-20 11:24:15,789 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2246 transitions. [2022-11-20 11:24:15,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2246 transitions. [2022-11-20 11:24:15,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:15,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2246 transitions. [2022-11-20 11:24:15,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 374.3333333333333) internal successors, (2246), 6 states have internal predecessors, (2246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:15,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:15,808 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:15,808 INFO L175 Difference]: Start difference. First operand has 417 places, 421 transitions, 851 flow. Second operand 6 states and 2246 transitions. [2022-11-20 11:24:15,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 419 transitions, 1039 flow [2022-11-20 11:24:15,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 419 transitions, 1035 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:24:15,819 INFO L231 Difference]: Finished difference. Result has 418 places, 419 transitions, 863 flow [2022-11-20 11:24:15,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=863, PETRI_PLACES=418, PETRI_TRANSITIONS=419} [2022-11-20 11:24:15,823 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -14 predicate places. [2022-11-20 11:24:15,824 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 419 transitions, 863 flow [2022-11-20 11:24:15,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 359.8333333333333) internal successors, (2159), 6 states have internal predecessors, (2159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:15,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:15,826 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:15,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:24:15,827 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:15,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:15,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2010384283, now seen corresponding path program 1 times [2022-11-20 11:24:15,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:15,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740863815] [2022-11-20 11:24:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:15,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:15,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:15,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:15,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740863815] [2022-11-20 11:24:15,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740863815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:15,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:15,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:15,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952871023] [2022-11-20 11:24:15,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:15,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:15,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:15,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:15,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:15,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-20 11:24:15,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 419 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:15,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:15,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-20 11:24:15,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:16,186 INFO L130 PetriNetUnfolder]: 65/1367 cut-off events. [2022-11-20 11:24:16,186 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 11:24:16,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 1367 events. 65/1367 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7907 event pairs, 24 based on Foata normal form. 0/1186 useless extension candidates. Maximal degree in co-relation 1425. Up to 69 conditions per place. [2022-11-20 11:24:16,204 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 15 selfloop transitions, 1 changer transitions 0/414 dead transitions. [2022-11-20 11:24:16,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 415 places, 414 transitions, 885 flow [2022-11-20 11:24:16,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:16,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1323 transitions. [2022-11-20 11:24:16,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.934322033898305 [2022-11-20 11:24:16,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1323 transitions. [2022-11-20 11:24:16,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1323 transitions. [2022-11-20 11:24:16,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:16,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1323 transitions. [2022-11-20 11:24:16,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.0) internal successors, (1323), 3 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,219 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,219 INFO L175 Difference]: Start difference. First operand has 418 places, 419 transitions, 863 flow. Second operand 3 states and 1323 transitions. [2022-11-20 11:24:16,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 415 places, 414 transitions, 885 flow [2022-11-20 11:24:16,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 414 transitions, 865 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:24:16,228 INFO L231 Difference]: Finished difference. Result has 410 places, 414 transitions, 835 flow [2022-11-20 11:24:16,229 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=410, PETRI_TRANSITIONS=414} [2022-11-20 11:24:16,233 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -22 predicate places. [2022-11-20 11:24:16,234 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 414 transitions, 835 flow [2022-11-20 11:24:16,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:16,235 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:16,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:24:16,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:16,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:16,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1917793416, now seen corresponding path program 1 times [2022-11-20 11:24:16,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:16,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832834477] [2022-11-20 11:24:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:16,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:16,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:16,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:16,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832834477] [2022-11-20 11:24:16,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832834477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:16,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:16,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:16,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073710742] [2022-11-20 11:24:16,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:16,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:16,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:16,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:16,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:16,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 472 [2022-11-20 11:24:16,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 414 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:16,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 472 [2022-11-20 11:24:16,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:16,729 INFO L130 PetriNetUnfolder]: 99/1403 cut-off events. [2022-11-20 11:24:16,729 INFO L131 PetriNetUnfolder]: For 21/22 co-relation queries the response was YES. [2022-11-20 11:24:16,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1559 conditions, 1403 events. 99/1403 cut-off events. For 21/22 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8239 event pairs, 48 based on Foata normal form. 0/1202 useless extension candidates. Maximal degree in co-relation 1519. Up to 142 conditions per place. [2022-11-20 11:24:16,742 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 19 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-20 11:24:16,742 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 413 transitions, 875 flow [2022-11-20 11:24:16,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:16,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1324 transitions. [2022-11-20 11:24:16,747 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9350282485875706 [2022-11-20 11:24:16,747 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1324 transitions. [2022-11-20 11:24:16,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1324 transitions. [2022-11-20 11:24:16,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:16,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1324 transitions. [2022-11-20 11:24:16,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 441.3333333333333) internal successors, (1324), 3 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,757 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,757 INFO L175 Difference]: Start difference. First operand has 410 places, 414 transitions, 835 flow. Second operand 3 states and 1324 transitions. [2022-11-20 11:24:16,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 413 transitions, 875 flow [2022-11-20 11:24:16,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 413 transitions, 874 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:24:16,766 INFO L231 Difference]: Finished difference. Result has 410 places, 413 transitions, 836 flow [2022-11-20 11:24:16,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=410, PETRI_TRANSITIONS=413} [2022-11-20 11:24:16,768 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -22 predicate places. [2022-11-20 11:24:16,768 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 413 transitions, 836 flow [2022-11-20 11:24:16,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.3333333333333) internal successors, (1306), 3 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:16,770 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:16,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:24:16,770 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:16,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:16,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1207247269, now seen corresponding path program 1 times [2022-11-20 11:24:16,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:16,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86316146] [2022-11-20 11:24:16,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:16,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:16,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:16,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86316146] [2022-11-20 11:24:16,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86316146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:16,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:16,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:16,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617106696] [2022-11-20 11:24:16,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:16,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:16,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:16,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:16,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:16,841 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-20 11:24:16,843 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 413 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:16,843 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:16,843 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-20 11:24:16,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:16,986 INFO L130 PetriNetUnfolder]: 23/635 cut-off events. [2022-11-20 11:24:16,986 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:24:16,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 635 events. 23/635 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2175 event pairs, 5 based on Foata normal form. 0/564 useless extension candidates. Maximal degree in co-relation 646. Up to 29 conditions per place. [2022-11-20 11:24:16,993 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 19 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2022-11-20 11:24:16,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 413 transitions, 879 flow [2022-11-20 11:24:16,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:16,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1327 transitions. [2022-11-20 11:24:16,998 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9371468926553672 [2022-11-20 11:24:16,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1327 transitions. [2022-11-20 11:24:16,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1327 transitions. [2022-11-20 11:24:16,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:17,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1327 transitions. [2022-11-20 11:24:17,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:17,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:17,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:17,028 INFO L175 Difference]: Start difference. First operand has 410 places, 413 transitions, 836 flow. Second operand 3 states and 1327 transitions. [2022-11-20 11:24:17,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 413 transitions, 879 flow [2022-11-20 11:24:17,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 413 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:24:17,038 INFO L231 Difference]: Finished difference. Result has 409 places, 412 transitions, 834 flow [2022-11-20 11:24:17,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=834, PETRI_PLACES=409, PETRI_TRANSITIONS=412} [2022-11-20 11:24:17,044 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -23 predicate places. [2022-11-20 11:24:17,044 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 412 transitions, 834 flow [2022-11-20 11:24:17,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:17,046 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:17,047 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:17,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:24:17,047 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:17,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:17,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1544809514, now seen corresponding path program 1 times [2022-11-20 11:24:17,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:17,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375315476] [2022-11-20 11:24:17,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:17,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:17,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:17,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:17,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375315476] [2022-11-20 11:24:17,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375315476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:17,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:17,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:24:17,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146976915] [2022-11-20 11:24:17,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:17,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:24:17,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:17,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:24:17,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:24:17,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 472 [2022-11-20 11:24:17,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 412 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:17,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:17,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 472 [2022-11-20 11:24:17,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:22,574 INFO L130 PetriNetUnfolder]: 8510/20674 cut-off events. [2022-11-20 11:24:22,575 INFO L131 PetriNetUnfolder]: For 31/398 co-relation queries the response was YES. [2022-11-20 11:24:22,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33659 conditions, 20674 events. 8510/20674 cut-off events. For 31/398 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 195450 event pairs, 2376 based on Foata normal form. 73/18055 useless extension candidates. Maximal degree in co-relation 33618. Up to 4141 conditions per place. [2022-11-20 11:24:22,782 INFO L137 encePairwiseOnDemand]: 467/472 looper letters, 265 selfloop transitions, 4 changer transitions 0/603 dead transitions. [2022-11-20 11:24:22,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 603 transitions, 1754 flow [2022-11-20 11:24:22,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:24:22,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:24:22,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2514 transitions. [2022-11-20 11:24:22,800 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8877118644067796 [2022-11-20 11:24:22,800 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2514 transitions. [2022-11-20 11:24:22,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2514 transitions. [2022-11-20 11:24:22,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:22,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2514 transitions. [2022-11-20 11:24:22,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 419.0) internal successors, (2514), 6 states have internal predecessors, (2514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:22,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:22,816 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:22,817 INFO L175 Difference]: Start difference. First operand has 409 places, 412 transitions, 834 flow. Second operand 6 states and 2514 transitions. [2022-11-20 11:24:22,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 603 transitions, 1754 flow [2022-11-20 11:24:22,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 603 transitions, 1750 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:24:22,831 INFO L231 Difference]: Finished difference. Result has 411 places, 411 transitions, 836 flow [2022-11-20 11:24:22,832 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=828, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=836, PETRI_PLACES=411, PETRI_TRANSITIONS=411} [2022-11-20 11:24:22,833 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -21 predicate places. [2022-11-20 11:24:22,833 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 411 transitions, 836 flow [2022-11-20 11:24:22,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.8333333333333) internal successors, (2255), 6 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:22,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:22,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:22,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:24:22,835 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:22,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:22,836 INFO L85 PathProgramCache]: Analyzing trace with hash 340040794, now seen corresponding path program 1 times [2022-11-20 11:24:22,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:22,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799781594] [2022-11-20 11:24:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:22,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:22,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:22,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799781594] [2022-11-20 11:24:22,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799781594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:22,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:22,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:22,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842457271] [2022-11-20 11:24:22,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:22,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:22,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:22,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:22,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:22,912 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-20 11:24:22,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 411 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:22,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:22,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-20 11:24:22,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:23,024 INFO L130 PetriNetUnfolder]: 20/525 cut-off events. [2022-11-20 11:24:23,024 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-20 11:24:23,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 525 events. 20/525 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1545 event pairs, 2 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 530. Up to 28 conditions per place. [2022-11-20 11:24:23,031 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 18 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-20 11:24:23,031 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 411 transitions, 877 flow [2022-11-20 11:24:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1326 transitions. [2022-11-20 11:24:23,036 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9364406779661016 [2022-11-20 11:24:23,036 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1326 transitions. [2022-11-20 11:24:23,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1326 transitions. [2022-11-20 11:24:23,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:23,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1326 transitions. [2022-11-20 11:24:23,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,046 INFO L175 Difference]: Start difference. First operand has 411 places, 411 transitions, 836 flow. Second operand 3 states and 1326 transitions. [2022-11-20 11:24:23,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 411 transitions, 877 flow [2022-11-20 11:24:23,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 411 transitions, 870 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:24:23,055 INFO L231 Difference]: Finished difference. Result has 408 places, 410 transitions, 831 flow [2022-11-20 11:24:23,057 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=408, PETRI_TRANSITIONS=410} [2022-11-20 11:24:23,057 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -24 predicate places. [2022-11-20 11:24:23,058 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 410 transitions, 831 flow [2022-11-20 11:24:23,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.6666666666667) internal successors, (1310), 3 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:23,059 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:23,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:24:23,060 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:23,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:23,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1070296566, now seen corresponding path program 1 times [2022-11-20 11:24:23,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:23,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435607500] [2022-11-20 11:24:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:23,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:23,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:23,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:23,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435607500] [2022-11-20 11:24:23,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435607500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:23,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:23,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:23,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986703243] [2022-11-20 11:24:23,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:23,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:23,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:23,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:23,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:23,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 472 [2022-11-20 11:24:23,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 410 transitions, 831 flow. Second operand has 3 states, 3 states have (on average 445.6666666666667) internal successors, (1337), 3 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:23,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 472 [2022-11-20 11:24:23,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:23,299 INFO L130 PetriNetUnfolder]: 24/631 cut-off events. [2022-11-20 11:24:23,299 INFO L131 PetriNetUnfolder]: For 2/9 co-relation queries the response was YES. [2022-11-20 11:24:23,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 631 events. 24/631 cut-off events. For 2/9 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2096 event pairs, 6 based on Foata normal form. 1/565 useless extension candidates. Maximal degree in co-relation 644. Up to 24 conditions per place. [2022-11-20 11:24:23,306 INFO L137 encePairwiseOnDemand]: 468/472 looper letters, 11 selfloop transitions, 3 changer transitions 0/412 dead transitions. [2022-11-20 11:24:23,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 412 transitions, 864 flow [2022-11-20 11:24:23,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:23,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:23,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1347 transitions. [2022-11-20 11:24:23,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951271186440678 [2022-11-20 11:24:23,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1347 transitions. [2022-11-20 11:24:23,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1347 transitions. [2022-11-20 11:24:23,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:23,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1347 transitions. [2022-11-20 11:24:23,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 449.0) internal successors, (1347), 3 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,321 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,321 INFO L175 Difference]: Start difference. First operand has 408 places, 410 transitions, 831 flow. Second operand 3 states and 1347 transitions. [2022-11-20 11:24:23,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 412 transitions, 864 flow [2022-11-20 11:24:23,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 412 transitions, 860 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:24:23,330 INFO L231 Difference]: Finished difference. Result has 410 places, 411 transitions, 845 flow [2022-11-20 11:24:23,331 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=827, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=845, PETRI_PLACES=410, PETRI_TRANSITIONS=411} [2022-11-20 11:24:23,332 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -22 predicate places. [2022-11-20 11:24:23,332 INFO L495 AbstractCegarLoop]: Abstraction has has 410 places, 411 transitions, 845 flow [2022-11-20 11:24:23,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 445.6666666666667) internal successors, (1337), 3 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,333 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:23,334 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:23,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:24:23,334 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:23,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:23,335 INFO L85 PathProgramCache]: Analyzing trace with hash 87623946, now seen corresponding path program 1 times [2022-11-20 11:24:23,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:23,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636808522] [2022-11-20 11:24:23,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:23,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:23,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:23,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:23,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636808522] [2022-11-20 11:24:23,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636808522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:23,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:23,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:23,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690047236] [2022-11-20 11:24:23,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:23,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:23,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:23,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:23,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:23,401 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-20 11:24:23,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 411 transitions, 845 flow. Second operand has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:23,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-20 11:24:23,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:23,718 INFO L130 PetriNetUnfolder]: 69/1245 cut-off events. [2022-11-20 11:24:23,718 INFO L131 PetriNetUnfolder]: For 24/25 co-relation queries the response was YES. [2022-11-20 11:24:23,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 1245 events. 69/1245 cut-off events. For 24/25 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6846 event pairs, 12 based on Foata normal form. 0/1109 useless extension candidates. Maximal degree in co-relation 1335. Up to 79 conditions per place. [2022-11-20 11:24:23,729 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 17 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-20 11:24:23,730 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 412 transitions, 888 flow [2022-11-20 11:24:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:23,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:23,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1334 transitions. [2022-11-20 11:24:23,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.942090395480226 [2022-11-20 11:24:23,735 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1334 transitions. [2022-11-20 11:24:23,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1334 transitions. [2022-11-20 11:24:23,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:23,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1334 transitions. [2022-11-20 11:24:23,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,746 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,746 INFO L175 Difference]: Start difference. First operand has 410 places, 411 transitions, 845 flow. Second operand 3 states and 1334 transitions. [2022-11-20 11:24:23,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 412 transitions, 888 flow [2022-11-20 11:24:23,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 412 transitions, 882 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:24:23,758 INFO L231 Difference]: Finished difference. Result has 407 places, 409 transitions, 845 flow [2022-11-20 11:24:23,759 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=845, PETRI_PLACES=407, PETRI_TRANSITIONS=409} [2022-11-20 11:24:23,760 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -25 predicate places. [2022-11-20 11:24:23,760 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 409 transitions, 845 flow [2022-11-20 11:24:23,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:23,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:23,762 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:23,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:24:23,762 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:23,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:23,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1303592878, now seen corresponding path program 1 times [2022-11-20 11:24:23,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:23,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892205741] [2022-11-20 11:24:23,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:23,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:24,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:24,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892205741] [2022-11-20 11:24:24,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892205741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:24,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:24,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:24:24,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213441125] [2022-11-20 11:24:24,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:24,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:24:24,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:24,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:24:24,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:24:24,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-20 11:24:24,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 409 transitions, 845 flow. Second operand has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:24,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:24,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-20 11:24:24,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:24,730 INFO L130 PetriNetUnfolder]: 269/1757 cut-off events. [2022-11-20 11:24:24,730 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-20 11:24:24,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 1757 events. 269/1757 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 11070 event pairs, 149 based on Foata normal form. 5/1595 useless extension candidates. Maximal degree in co-relation 2451. Up to 428 conditions per place. [2022-11-20 11:24:24,750 INFO L137 encePairwiseOnDemand]: 457/472 looper letters, 114 selfloop transitions, 17 changer transitions 0/457 dead transitions. [2022-11-20 11:24:24,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 457 transitions, 1216 flow [2022-11-20 11:24:24,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:24:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:24:24,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4596 transitions. [2022-11-20 11:24:24,766 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8114406779661016 [2022-11-20 11:24:24,767 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4596 transitions. [2022-11-20 11:24:24,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4596 transitions. [2022-11-20 11:24:24,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:24,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4596 transitions. [2022-11-20 11:24:24,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:24,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:24,804 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:24,804 INFO L175 Difference]: Start difference. First operand has 407 places, 409 transitions, 845 flow. Second operand 12 states and 4596 transitions. [2022-11-20 11:24:24,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 457 transitions, 1216 flow [2022-11-20 11:24:24,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 457 transitions, 1216 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:24:24,819 INFO L231 Difference]: Finished difference. Result has 423 places, 417 transitions, 930 flow [2022-11-20 11:24:24,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=930, PETRI_PLACES=423, PETRI_TRANSITIONS=417} [2022-11-20 11:24:24,821 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -9 predicate places. [2022-11-20 11:24:24,822 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 417 transitions, 930 flow [2022-11-20 11:24:24,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 376.0) internal successors, (3008), 8 states have internal predecessors, (3008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:24,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:24,824 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:24,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:24:24,825 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:24,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:24,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1689111661, now seen corresponding path program 1 times [2022-11-20 11:24:24,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:24,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926912797] [2022-11-20 11:24:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:24,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:24,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:24,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926912797] [2022-11-20 11:24:24,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926912797] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:24,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:24,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:24:24,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740412027] [2022-11-20 11:24:24,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:24,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:24,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:24,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:24,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:24,931 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 472 [2022-11-20 11:24:24,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 417 transitions, 930 flow. Second operand has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:24,934 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:24,934 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 472 [2022-11-20 11:24:24,934 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:25,296 INFO L130 PetriNetUnfolder]: 86/1196 cut-off events. [2022-11-20 11:24:25,297 INFO L131 PetriNetUnfolder]: For 74/91 co-relation queries the response was YES. [2022-11-20 11:24:25,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1431 conditions, 1196 events. 86/1196 cut-off events. For 74/91 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6492 event pairs, 24 based on Foata normal form. 2/1072 useless extension candidates. Maximal degree in co-relation 1382. Up to 98 conditions per place. [2022-11-20 11:24:25,311 INFO L137 encePairwiseOnDemand]: 468/472 looper letters, 11 selfloop transitions, 3 changer transitions 0/419 dead transitions. [2022-11-20 11:24:25,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 419 transitions, 963 flow [2022-11-20 11:24:25,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:25,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1347 transitions. [2022-11-20 11:24:25,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.951271186440678 [2022-11-20 11:24:25,318 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1347 transitions. [2022-11-20 11:24:25,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1347 transitions. [2022-11-20 11:24:25,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:25,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1347 transitions. [2022-11-20 11:24:25,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 449.0) internal successors, (1347), 3 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:25,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:25,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:25,330 INFO L175 Difference]: Start difference. First operand has 423 places, 417 transitions, 930 flow. Second operand 3 states and 1347 transitions. [2022-11-20 11:24:25,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 419 transitions, 963 flow [2022-11-20 11:24:25,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 419 transitions, 961 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:24:25,343 INFO L231 Difference]: Finished difference. Result has 426 places, 418 transitions, 946 flow [2022-11-20 11:24:25,344 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=928, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=946, PETRI_PLACES=426, PETRI_TRANSITIONS=418} [2022-11-20 11:24:25,345 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -6 predicate places. [2022-11-20 11:24:25,345 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 418 transitions, 946 flow [2022-11-20 11:24:25,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 446.0) internal successors, (1338), 3 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:25,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:25,347 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:25,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:24:25,347 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash -287089619, now seen corresponding path program 1 times [2022-11-20 11:24:25,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:25,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282365403] [2022-11-20 11:24:25,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:25,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:25,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:25,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282365403] [2022-11-20 11:24:25,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282365403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:25,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:25,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:24:25,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145158331] [2022-11-20 11:24:25,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:25,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:24:25,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:25,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:24:25,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:24:25,690 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-20 11:24:25,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 418 transitions, 946 flow. Second operand has 8 states, 8 states have (on average 376.125) internal successors, (3009), 8 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:25,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:25,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-20 11:24:25,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:26,372 INFO L130 PetriNetUnfolder]: 256/1548 cut-off events. [2022-11-20 11:24:26,372 INFO L131 PetriNetUnfolder]: For 244/244 co-relation queries the response was YES. [2022-11-20 11:24:26,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2445 conditions, 1548 events. 256/1548 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 9562 event pairs, 141 based on Foata normal form. 4/1441 useless extension candidates. Maximal degree in co-relation 2392. Up to 427 conditions per place. [2022-11-20 11:24:26,392 INFO L137 encePairwiseOnDemand]: 457/472 looper letters, 114 selfloop transitions, 17 changer transitions 0/461 dead transitions. [2022-11-20 11:24:26,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 461 transitions, 1321 flow [2022-11-20 11:24:26,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 11:24:26,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 11:24:26,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 4596 transitions. [2022-11-20 11:24:26,408 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8114406779661016 [2022-11-20 11:24:26,409 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 4596 transitions. [2022-11-20 11:24:26,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 4596 transitions. [2022-11-20 11:24:26,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:26,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 4596 transitions. [2022-11-20 11:24:26,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 383.0) internal successors, (4596), 12 states have internal predecessors, (4596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:26,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:26,443 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 472.0) internal successors, (6136), 13 states have internal predecessors, (6136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:26,444 INFO L175 Difference]: Start difference. First operand has 426 places, 418 transitions, 946 flow. Second operand 12 states and 4596 transitions. [2022-11-20 11:24:26,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 461 transitions, 1321 flow [2022-11-20 11:24:26,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 461 transitions, 1311 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:24:26,463 INFO L231 Difference]: Finished difference. Result has 439 places, 422 transitions, 1010 flow [2022-11-20 11:24:26,464 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=940, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1010, PETRI_PLACES=439, PETRI_TRANSITIONS=422} [2022-11-20 11:24:26,466 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 7 predicate places. [2022-11-20 11:24:26,466 INFO L495 AbstractCegarLoop]: Abstraction has has 439 places, 422 transitions, 1010 flow [2022-11-20 11:24:26,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 376.125) internal successors, (3009), 8 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:26,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:26,468 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:26,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:24:26,469 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:26,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:26,470 INFO L85 PathProgramCache]: Analyzing trace with hash 671563270, now seen corresponding path program 1 times [2022-11-20 11:24:26,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:26,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685000267] [2022-11-20 11:24:26,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:26,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:27,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:27,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:27,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685000267] [2022-11-20 11:24:27,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685000267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:27,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:27,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:24:27,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216478830] [2022-11-20 11:24:27,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:27,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:24:27,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:27,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:24:27,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:24:27,229 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 472 [2022-11-20 11:24:27,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 422 transitions, 1010 flow. Second operand has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:27,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:27,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 472 [2022-11-20 11:24:27,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:33,304 INFO L130 PetriNetUnfolder]: 7493/26580 cut-off events. [2022-11-20 11:24:33,304 INFO L131 PetriNetUnfolder]: For 539/558 co-relation queries the response was YES. [2022-11-20 11:24:33,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40522 conditions, 26580 events. 7493/26580 cut-off events. For 539/558 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 296897 event pairs, 6797 based on Foata normal form. 4/23753 useless extension candidates. Maximal degree in co-relation 40462. Up to 11026 conditions per place. [2022-11-20 11:24:33,531 INFO L137 encePairwiseOnDemand]: 467/472 looper letters, 168 selfloop transitions, 4 changer transitions 0/517 dead transitions. [2022-11-20 11:24:33,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 517 transitions, 1544 flow [2022-11-20 11:24:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:24:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:24:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2417 transitions. [2022-11-20 11:24:33,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8534604519774012 [2022-11-20 11:24:33,539 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2417 transitions. [2022-11-20 11:24:33,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2417 transitions. [2022-11-20 11:24:33,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:33,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2417 transitions. [2022-11-20 11:24:33,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.8333333333333) internal successors, (2417), 6 states have internal predecessors, (2417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:33,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:33,561 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:33,562 INFO L175 Difference]: Start difference. First operand has 439 places, 422 transitions, 1010 flow. Second operand 6 states and 2417 transitions. [2022-11-20 11:24:33,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 517 transitions, 1544 flow [2022-11-20 11:24:33,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 517 transitions, 1529 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:24:33,606 INFO L231 Difference]: Finished difference. Result has 437 places, 421 transitions, 1001 flow [2022-11-20 11:24:33,607 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=993, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1001, PETRI_PLACES=437, PETRI_TRANSITIONS=421} [2022-11-20 11:24:33,608 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 5 predicate places. [2022-11-20 11:24:33,608 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 421 transitions, 1001 flow [2022-11-20 11:24:33,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:33,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:33,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:33,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:24:33,612 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:33,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:33,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1171973006, now seen corresponding path program 1 times [2022-11-20 11:24:33,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:33,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577356016] [2022-11-20 11:24:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:33,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:33,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:24:33,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:33,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577356016] [2022-11-20 11:24:33,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577356016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:33,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:33,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:24:33,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451267006] [2022-11-20 11:24:33,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:33,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:24:33,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:33,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:24:33,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:24:33,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-20 11:24:33,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 421 transitions, 1001 flow. Second operand has 8 states, 8 states have (on average 377.125) internal successors, (3017), 8 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:33,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:33,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-20 11:24:33,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:34,824 INFO L130 PetriNetUnfolder]: 310/2047 cut-off events. [2022-11-20 11:24:34,824 INFO L131 PetriNetUnfolder]: For 184/184 co-relation queries the response was YES. [2022-11-20 11:24:34,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3256 conditions, 2047 events. 310/2047 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 13680 event pairs, 163 based on Foata normal form. 5/1904 useless extension candidates. Maximal degree in co-relation 3195. Up to 522 conditions per place. [2022-11-20 11:24:34,848 INFO L137 encePairwiseOnDemand]: 460/472 looper letters, 111 selfloop transitions, 15 changer transitions 0/456 dead transitions. [2022-11-20 11:24:34,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 456 transitions, 1370 flow [2022-11-20 11:24:34,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 11:24:34,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-20 11:24:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3461 transitions. [2022-11-20 11:24:34,857 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8147363465160076 [2022-11-20 11:24:34,857 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3461 transitions. [2022-11-20 11:24:34,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3461 transitions. [2022-11-20 11:24:34,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:34,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3461 transitions. [2022-11-20 11:24:34,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 384.55555555555554) internal successors, (3461), 9 states have internal predecessors, (3461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:34,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 472.0) internal successors, (4720), 10 states have internal predecessors, (4720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:34,876 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 472.0) internal successors, (4720), 10 states have internal predecessors, (4720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:34,876 INFO L175 Difference]: Start difference. First operand has 437 places, 421 transitions, 1001 flow. Second operand 9 states and 3461 transitions. [2022-11-20 11:24:34,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 456 transitions, 1370 flow [2022-11-20 11:24:34,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 456 transitions, 1363 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:24:34,890 INFO L231 Difference]: Finished difference. Result has 445 places, 430 transitions, 1106 flow [2022-11-20 11:24:34,891 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1106, PETRI_PLACES=445, PETRI_TRANSITIONS=430} [2022-11-20 11:24:34,891 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 13 predicate places. [2022-11-20 11:24:34,891 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 430 transitions, 1106 flow [2022-11-20 11:24:34,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 377.125) internal successors, (3017), 8 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:34,893 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:34,893 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:34,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:24:34,894 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:34,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:34,894 INFO L85 PathProgramCache]: Analyzing trace with hash -574253583, now seen corresponding path program 1 times [2022-11-20 11:24:34,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:34,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539237861] [2022-11-20 11:24:34,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:34,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:35,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 11:24:35,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:35,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539237861] [2022-11-20 11:24:35,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539237861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:35,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:35,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 11:24:35,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627815503] [2022-11-20 11:24:35,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:35,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 11:24:35,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:35,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 11:24:35,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:24:35,167 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 472 [2022-11-20 11:24:35,170 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 430 transitions, 1106 flow. Second operand has 8 states, 8 states have (on average 377.25) internal successors, (3018), 8 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:35,171 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:35,171 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 472 [2022-11-20 11:24:35,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:35,897 INFO L130 PetriNetUnfolder]: 344/2007 cut-off events. [2022-11-20 11:24:35,897 INFO L131 PetriNetUnfolder]: For 518/613 co-relation queries the response was YES. [2022-11-20 11:24:35,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3331 conditions, 2007 events. 344/2007 cut-off events. For 518/613 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 13764 event pairs, 151 based on Foata normal form. 10/1871 useless extension candidates. Maximal degree in co-relation 3264. Up to 508 conditions per place. [2022-11-20 11:24:35,911 INFO L137 encePairwiseOnDemand]: 459/472 looper letters, 109 selfloop transitions, 20 changer transitions 0/465 dead transitions. [2022-11-20 11:24:35,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 465 transitions, 1492 flow [2022-11-20 11:24:35,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 11:24:35,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 11:24:35,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3837 transitions. [2022-11-20 11:24:35,920 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8129237288135593 [2022-11-20 11:24:35,921 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3837 transitions. [2022-11-20 11:24:35,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3837 transitions. [2022-11-20 11:24:35,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:35,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3837 transitions. [2022-11-20 11:24:35,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 383.7) internal successors, (3837), 10 states have internal predecessors, (3837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:35,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 472.0) internal successors, (5192), 11 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:35,942 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 472.0) internal successors, (5192), 11 states have internal predecessors, (5192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:35,943 INFO L175 Difference]: Start difference. First operand has 445 places, 430 transitions, 1106 flow. Second operand 10 states and 3837 transitions. [2022-11-20 11:24:35,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 465 transitions, 1492 flow [2022-11-20 11:24:35,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 465 transitions, 1480 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:24:35,956 INFO L231 Difference]: Finished difference. Result has 454 places, 438 transitions, 1214 flow [2022-11-20 11:24:35,957 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1094, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1214, PETRI_PLACES=454, PETRI_TRANSITIONS=438} [2022-11-20 11:24:35,958 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 22 predicate places. [2022-11-20 11:24:35,958 INFO L495 AbstractCegarLoop]: Abstraction has has 454 places, 438 transitions, 1214 flow [2022-11-20 11:24:35,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 377.25) internal successors, (3018), 8 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:35,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:35,960 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:35,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:24:35,961 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:35,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:35,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1447355507, now seen corresponding path program 1 times [2022-11-20 11:24:35,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:35,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433658327] [2022-11-20 11:24:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:35,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:36,533 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:24:36,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:36,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433658327] [2022-11-20 11:24:36,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433658327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:36,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:36,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:24:36,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393166093] [2022-11-20 11:24:36,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:36,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:24:36,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:36,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:24:36,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:24:36,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-20 11:24:36,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 454 places, 438 transitions, 1214 flow. Second operand has 6 states, 6 states have (on average 370.6666666666667) internal successors, (2224), 6 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:36,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:36,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-20 11:24:36,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:43,451 INFO L130 PetriNetUnfolder]: 10085/28442 cut-off events. [2022-11-20 11:24:43,452 INFO L131 PetriNetUnfolder]: For 2152/2294 co-relation queries the response was YES. [2022-11-20 11:24:43,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47604 conditions, 28442 events. 10085/28442 cut-off events. For 2152/2294 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 287180 event pairs, 1930 based on Foata normal form. 0/25746 useless extension candidates. Maximal degree in co-relation 47534. Up to 10929 conditions per place. [2022-11-20 11:24:43,738 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 218 selfloop transitions, 5 changer transitions 0/571 dead transitions. [2022-11-20 11:24:43,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 571 transitions, 1937 flow [2022-11-20 11:24:43,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:24:43,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:24:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2422 transitions. [2022-11-20 11:24:43,748 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.855225988700565 [2022-11-20 11:24:43,749 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2422 transitions. [2022-11-20 11:24:43,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2422 transitions. [2022-11-20 11:24:43,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:43,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2422 transitions. [2022-11-20 11:24:43,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 403.6666666666667) internal successors, (2422), 6 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:43,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:43,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:43,764 INFO L175 Difference]: Start difference. First operand has 454 places, 438 transitions, 1214 flow. Second operand 6 states and 2422 transitions. [2022-11-20 11:24:43,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 571 transitions, 1937 flow [2022-11-20 11:24:43,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 571 transitions, 1925 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:24:43,795 INFO L231 Difference]: Finished difference. Result has 453 places, 436 transitions, 1208 flow [2022-11-20 11:24:43,796 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1208, PETRI_PLACES=453, PETRI_TRANSITIONS=436} [2022-11-20 11:24:43,797 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 21 predicate places. [2022-11-20 11:24:43,797 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 436 transitions, 1208 flow [2022-11-20 11:24:43,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.6666666666667) internal successors, (2224), 6 states have internal predecessors, (2224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:43,799 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:43,799 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:43,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:24:43,799 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:43,800 INFO L85 PathProgramCache]: Analyzing trace with hash 660797583, now seen corresponding path program 1 times [2022-11-20 11:24:43,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:43,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11035884] [2022-11-20 11:24:43,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:43,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:24:43,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:43,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11035884] [2022-11-20 11:24:43,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11035884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:43,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:43,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:43,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263292901] [2022-11-20 11:24:43,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:43,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:43,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:43,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:43,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:43,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-20 11:24:43,891 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 436 transitions, 1208 flow. Second operand has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:43,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:43,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-20 11:24:43,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:44,371 INFO L130 PetriNetUnfolder]: 85/1854 cut-off events. [2022-11-20 11:24:44,372 INFO L131 PetriNetUnfolder]: For 274/278 co-relation queries the response was YES. [2022-11-20 11:24:44,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2398 conditions, 1854 events. 85/1854 cut-off events. For 274/278 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10861 event pairs, 17 based on Foata normal form. 0/1720 useless extension candidates. Maximal degree in co-relation 2331. Up to 89 conditions per place. [2022-11-20 11:24:44,395 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 17 selfloop transitions, 2 changer transitions 0/437 dead transitions. [2022-11-20 11:24:44,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 437 transitions, 1251 flow [2022-11-20 11:24:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:44,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:44,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1334 transitions. [2022-11-20 11:24:44,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.942090395480226 [2022-11-20 11:24:44,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1334 transitions. [2022-11-20 11:24:44,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1334 transitions. [2022-11-20 11:24:44,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:44,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1334 transitions. [2022-11-20 11:24:44,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 444.6666666666667) internal successors, (1334), 3 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:44,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:44,409 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:44,409 INFO L175 Difference]: Start difference. First operand has 453 places, 436 transitions, 1208 flow. Second operand 3 states and 1334 transitions. [2022-11-20 11:24:44,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 437 transitions, 1251 flow [2022-11-20 11:24:44,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 437 transitions, 1241 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:24:44,424 INFO L231 Difference]: Finished difference. Result has 447 places, 434 transitions, 1204 flow [2022-11-20 11:24:44,426 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1190, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1204, PETRI_PLACES=447, PETRI_TRANSITIONS=434} [2022-11-20 11:24:44,427 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 15 predicate places. [2022-11-20 11:24:44,427 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 434 transitions, 1204 flow [2022-11-20 11:24:44,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:44,428 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:44,428 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:44,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:24:44,429 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:44,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:44,429 INFO L85 PathProgramCache]: Analyzing trace with hash -219638580, now seen corresponding path program 1 times [2022-11-20 11:24:44,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:44,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060656836] [2022-11-20 11:24:44,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:44,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:45,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:24:45,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:45,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060656836] [2022-11-20 11:24:45,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060656836] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:45,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:45,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:24:45,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201948855] [2022-11-20 11:24:45,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:45,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:24:45,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:45,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:24:45,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:24:45,362 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-20 11:24:45,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 434 transitions, 1204 flow. Second operand has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:45,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:45,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-20 11:24:45,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:52,347 INFO L130 PetriNetUnfolder]: 10272/28025 cut-off events. [2022-11-20 11:24:52,348 INFO L131 PetriNetUnfolder]: For 2472/2547 co-relation queries the response was YES. [2022-11-20 11:24:52,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47957 conditions, 28025 events. 10272/28025 cut-off events. For 2472/2547 co-relation queries the response was YES. Maximal size of possible extension queue 422. Compared 275837 event pairs, 1962 based on Foata normal form. 2/26215 useless extension candidates. Maximal degree in co-relation 47889. Up to 10797 conditions per place. [2022-11-20 11:24:52,646 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 222 selfloop transitions, 5 changer transitions 0/573 dead transitions. [2022-11-20 11:24:52,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 573 transitions, 1949 flow [2022-11-20 11:24:52,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:24:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:24:52,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2426 transitions. [2022-11-20 11:24:52,653 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.856638418079096 [2022-11-20 11:24:52,653 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2426 transitions. [2022-11-20 11:24:52,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2426 transitions. [2022-11-20 11:24:52,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:52,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2426 transitions. [2022-11-20 11:24:52,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 404.3333333333333) internal successors, (2426), 6 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:52,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:52,672 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:24:52,673 INFO L175 Difference]: Start difference. First operand has 447 places, 434 transitions, 1204 flow. Second operand 6 states and 2426 transitions. [2022-11-20 11:24:52,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 573 transitions, 1949 flow [2022-11-20 11:24:52,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 573 transitions, 1949 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:24:52,708 INFO L231 Difference]: Finished difference. Result has 450 places, 432 transitions, 1210 flow [2022-11-20 11:24:52,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1200, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1210, PETRI_PLACES=450, PETRI_TRANSITIONS=432} [2022-11-20 11:24:52,710 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 18 predicate places. [2022-11-20 11:24:52,710 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 432 transitions, 1210 flow [2022-11-20 11:24:52,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:52,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:52,712 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:52,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 11:24:52,713 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:52,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash 243456722, now seen corresponding path program 1 times [2022-11-20 11:24:52,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:52,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486439945] [2022-11-20 11:24:52,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:52,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:52,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:24:52,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:52,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486439945] [2022-11-20 11:24:52,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486439945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:52,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:52,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:24:52,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298812888] [2022-11-20 11:24:52,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:52,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:24:52,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:52,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:24:52,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:24:52,809 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-20 11:24:52,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 432 transitions, 1210 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:52,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:52,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-20 11:24:52,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:24:53,404 INFO L130 PetriNetUnfolder]: 57/1556 cut-off events. [2022-11-20 11:24:53,404 INFO L131 PetriNetUnfolder]: For 335/344 co-relation queries the response was YES. [2022-11-20 11:24:53,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 1556 events. 57/1556 cut-off events. For 335/344 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 8211 event pairs, 12 based on Foata normal form. 0/1491 useless extension candidates. Maximal degree in co-relation 2126. Up to 56 conditions per place. [2022-11-20 11:24:53,422 INFO L137 encePairwiseOnDemand]: 468/472 looper letters, 14 selfloop transitions, 1 changer transitions 0/429 dead transitions. [2022-11-20 11:24:53,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 429 transitions, 1234 flow [2022-11-20 11:24:53,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:24:53,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:24:53,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1329 transitions. [2022-11-20 11:24:53,426 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9385593220338984 [2022-11-20 11:24:53,426 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1329 transitions. [2022-11-20 11:24:53,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1329 transitions. [2022-11-20 11:24:53,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:24:53,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1329 transitions. [2022-11-20 11:24:53,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 443.0) internal successors, (1329), 3 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:53,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:53,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:53,435 INFO L175 Difference]: Start difference. First operand has 450 places, 432 transitions, 1210 flow. Second operand 3 states and 1329 transitions. [2022-11-20 11:24:53,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 429 transitions, 1234 flow [2022-11-20 11:24:53,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 429 transitions, 1224 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:24:53,451 INFO L231 Difference]: Finished difference. Result has 444 places, 429 transitions, 1196 flow [2022-11-20 11:24:53,452 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1194, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1196, PETRI_PLACES=444, PETRI_TRANSITIONS=429} [2022-11-20 11:24:53,453 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 12 predicate places. [2022-11-20 11:24:53,453 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 429 transitions, 1196 flow [2022-11-20 11:24:53,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:53,454 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:24:53,454 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:24:53,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 11:24:53,455 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:24:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:24:53,456 INFO L85 PathProgramCache]: Analyzing trace with hash -340997325, now seen corresponding path program 1 times [2022-11-20 11:24:53,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:24:53,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624871771] [2022-11-20 11:24:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:24:53,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:24:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:24:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:24:54,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:24:54,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624871771] [2022-11-20 11:24:54,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624871771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:24:54,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:24:54,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:24:54,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554905368] [2022-11-20 11:24:54,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:24:54,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:24:54,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:24:54,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:24:54,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:24:54,060 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-20 11:24:54,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 429 transitions, 1196 flow. Second operand has 6 states, 6 states have (on average 371.6666666666667) internal successors, (2230), 6 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:24:54,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:24:54,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-20 11:24:54,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:25:01,234 INFO L130 PetriNetUnfolder]: 9831/29703 cut-off events. [2022-11-20 11:25:01,234 INFO L131 PetriNetUnfolder]: For 3069/3199 co-relation queries the response was YES. [2022-11-20 11:25:01,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49791 conditions, 29703 events. 9831/29703 cut-off events. For 3069/3199 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 313723 event pairs, 4138 based on Foata normal form. 0/28015 useless extension candidates. Maximal degree in co-relation 49722. Up to 7102 conditions per place. [2022-11-20 11:25:01,755 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 206 selfloop transitions, 5 changer transitions 0/554 dead transitions. [2022-11-20 11:25:01,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 554 transitions, 1879 flow [2022-11-20 11:25:01,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:25:01,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:25:01,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2410 transitions. [2022-11-20 11:25:01,759 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8509887005649718 [2022-11-20 11:25:01,759 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2410 transitions. [2022-11-20 11:25:01,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2410 transitions. [2022-11-20 11:25:01,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:25:01,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2410 transitions. [2022-11-20 11:25:01,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 401.6666666666667) internal successors, (2410), 6 states have internal predecessors, (2410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:01,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:25:01,772 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:25:01,772 INFO L175 Difference]: Start difference. First operand has 444 places, 429 transitions, 1196 flow. Second operand 6 states and 2410 transitions. [2022-11-20 11:25:01,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 554 transitions, 1879 flow [2022-11-20 11:25:01,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 554 transitions, 1878 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:25:01,827 INFO L231 Difference]: Finished difference. Result has 446 places, 427 transitions, 1201 flow [2022-11-20 11:25:01,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1191, PETRI_DIFFERENCE_MINUEND_PLACES=441, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1201, PETRI_PLACES=446, PETRI_TRANSITIONS=427} [2022-11-20 11:25:01,829 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 14 predicate places. [2022-11-20 11:25:01,829 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 427 transitions, 1201 flow [2022-11-20 11:25:01,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.6666666666667) internal successors, (2230), 6 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:01,830 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:25:01,830 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:01,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 11:25:01,831 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:25:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:01,832 INFO L85 PathProgramCache]: Analyzing trace with hash 476838150, now seen corresponding path program 1 times [2022-11-20 11:25:01,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:01,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246068281] [2022-11-20 11:25:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:01,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:01,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:25:01,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:01,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246068281] [2022-11-20 11:25:01,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246068281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:01,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:01,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:25:01,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929387987] [2022-11-20 11:25:01,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:01,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:25:01,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:01,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:25:01,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:01,911 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 472 [2022-11-20 11:25:01,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 427 transitions, 1201 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:01,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:25:01,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 472 [2022-11-20 11:25:01,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:25:02,254 INFO L130 PetriNetUnfolder]: 72/1576 cut-off events. [2022-11-20 11:25:02,255 INFO L131 PetriNetUnfolder]: For 304/310 co-relation queries the response was YES. [2022-11-20 11:25:02,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2138 conditions, 1576 events. 72/1576 cut-off events. For 304/310 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 8329 event pairs, 19 based on Foata normal form. 6/1514 useless extension candidates. Maximal degree in co-relation 2070. Up to 77 conditions per place. [2022-11-20 11:25:02,264 INFO L137 encePairwiseOnDemand]: 466/472 looper letters, 8 selfloop transitions, 0 changer transitions 66/426 dead transitions. [2022-11-20 11:25:02,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 426 transitions, 1231 flow [2022-11-20 11:25:02,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:25:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:25:02,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1330 transitions. [2022-11-20 11:25:02,267 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9392655367231638 [2022-11-20 11:25:02,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1330 transitions. [2022-11-20 11:25:02,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1330 transitions. [2022-11-20 11:25:02,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:25:02,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1330 transitions. [2022-11-20 11:25:02,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 443.3333333333333) internal successors, (1330), 3 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:02,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:02,273 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:02,274 INFO L175 Difference]: Start difference. First operand has 446 places, 427 transitions, 1201 flow. Second operand 3 states and 1330 transitions. [2022-11-20 11:25:02,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 426 transitions, 1231 flow [2022-11-20 11:25:02,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 426 transitions, 1221 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:25:02,285 INFO L231 Difference]: Finished difference. Result has 440 places, 360 transitions, 874 flow [2022-11-20 11:25:02,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=1185, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=440, PETRI_TRANSITIONS=360} [2022-11-20 11:25:02,287 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, 8 predicate places. [2022-11-20 11:25:02,287 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 360 transitions, 874 flow [2022-11-20 11:25:02,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:02,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:25:02,288 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:02,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 11:25:02,288 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:25:02,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:02,289 INFO L85 PathProgramCache]: Analyzing trace with hash 653880946, now seen corresponding path program 1 times [2022-11-20 11:25:02,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:02,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592024109] [2022-11-20 11:25:02,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:02,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:25:02,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:02,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592024109] [2022-11-20 11:25:02,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592024109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:02,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:02,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:25:02,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228814019] [2022-11-20 11:25:02,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:02,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:25:02,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:02,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:25:02,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:25:02,868 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 472 [2022-11-20 11:25:02,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 360 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:02,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:25:02,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 472 [2022-11-20 11:25:02,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:25:09,165 INFO L130 PetriNetUnfolder]: 8791/26208 cut-off events. [2022-11-20 11:25:09,166 INFO L131 PetriNetUnfolder]: For 1818/1842 co-relation queries the response was YES. [2022-11-20 11:25:09,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43250 conditions, 26208 events. 8791/26208 cut-off events. For 1818/1842 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 273288 event pairs, 3596 based on Foata normal form. 0/25124 useless extension candidates. Maximal degree in co-relation 43226. Up to 6300 conditions per place. [2022-11-20 11:25:09,396 INFO L137 encePairwiseOnDemand]: 465/472 looper letters, 203 selfloop transitions, 5 changer transitions 0/490 dead transitions. [2022-11-20 11:25:09,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 490 transitions, 1562 flow [2022-11-20 11:25:09,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:25:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:25:09,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2412 transitions. [2022-11-20 11:25:09,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8516949152542372 [2022-11-20 11:25:09,401 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2412 transitions. [2022-11-20 11:25:09,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2412 transitions. [2022-11-20 11:25:09,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:25:09,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2412 transitions. [2022-11-20 11:25:09,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:09,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:25:09,412 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 472.0) internal successors, (3304), 7 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) [2022-11-20 11:25:09,413 INFO L175 Difference]: Start difference. First operand has 440 places, 360 transitions, 874 flow. Second operand 6 states and 2412 transitions. [2022-11-20 11:25:09,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 490 transitions, 1562 flow [2022-11-20 11:25:09,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 490 transitions, 1484 flow, removed 14 selfloop flow, removed 23 redundant places. [2022-11-20 11:25:09,458 INFO L231 Difference]: Finished difference. Result has 371 places, 358 transitions, 802 flow [2022-11-20 11:25:09,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=371, PETRI_TRANSITIONS=358} [2022-11-20 11:25:09,460 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -61 predicate places. [2022-11-20 11:25:09,460 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 358 transitions, 802 flow [2022-11-20 11:25:09,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:09,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:25:09,461 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:09,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 11:25:09,461 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:25:09,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:09,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2059440729, now seen corresponding path program 1 times [2022-11-20 11:25:09,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:09,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184712395] [2022-11-20 11:25:09,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:09,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:09,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:25:09,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:09,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184712395] [2022-11-20 11:25:09,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184712395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:09,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:09,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:25:09,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265022262] [2022-11-20 11:25:09,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:09,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:25:09,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:09,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:25:09,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:09,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-20 11:25:09,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 358 transitions, 802 flow. Second operand has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:09,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:25:09,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-20 11:25:09,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:25:09,786 INFO L130 PetriNetUnfolder]: 31/886 cut-off events. [2022-11-20 11:25:09,787 INFO L131 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2022-11-20 11:25:09,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 886 events. 31/886 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3551 event pairs, 4 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 1050. Up to 18 conditions per place. [2022-11-20 11:25:09,795 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 8 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2022-11-20 11:25:09,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 358 transitions, 823 flow [2022-11-20 11:25:09,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:25:09,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:25:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1316 transitions. [2022-11-20 11:25:09,798 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9293785310734464 [2022-11-20 11:25:09,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1316 transitions. [2022-11-20 11:25:09,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1316 transitions. [2022-11-20 11:25:09,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:25:09,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1316 transitions. [2022-11-20 11:25:09,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:09,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:09,805 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:09,805 INFO L175 Difference]: Start difference. First operand has 371 places, 358 transitions, 802 flow. Second operand 3 states and 1316 transitions. [2022-11-20 11:25:09,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 358 transitions, 823 flow [2022-11-20 11:25:09,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 358 transitions, 813 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:25:09,812 INFO L231 Difference]: Finished difference. Result has 367 places, 357 transitions, 794 flow [2022-11-20 11:25:09,813 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=367, PETRI_TRANSITIONS=357} [2022-11-20 11:25:09,814 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -65 predicate places. [2022-11-20 11:25:09,814 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 357 transitions, 794 flow [2022-11-20 11:25:09,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.0) internal successors, (1311), 3 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:09,815 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:25:09,815 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:09,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 11:25:09,816 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-20 11:25:09,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:25:09,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1223463020, now seen corresponding path program 1 times [2022-11-20 11:25:09,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:25:09,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072352283] [2022-11-20 11:25:09,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:25:09,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:25:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:25:09,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:25:09,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:25:09,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072352283] [2022-11-20 11:25:09,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072352283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:25:09,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:25:09,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:25:09,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030086830] [2022-11-20 11:25:09,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:25:09,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:25:09,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:25:09,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:25:09,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:25:09,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 472 [2022-11-20 11:25:09,914 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 357 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:09,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:25:09,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 472 [2022-11-20 11:25:09,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:25:10,033 INFO L130 PetriNetUnfolder]: 37/752 cut-off events. [2022-11-20 11:25:10,033 INFO L131 PetriNetUnfolder]: For 29/31 co-relation queries the response was YES. [2022-11-20 11:25:10,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 752 events. 37/752 cut-off events. For 29/31 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2731 event pairs, 6 based on Foata normal form. 0/732 useless extension candidates. Maximal degree in co-relation 889. Up to 25 conditions per place. [2022-11-20 11:25:10,037 INFO L137 encePairwiseOnDemand]: 469/472 looper letters, 0 selfloop transitions, 0 changer transitions 357/357 dead transitions. [2022-11-20 11:25:10,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 357 transitions, 815 flow [2022-11-20 11:25:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:25:10,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:25:10,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1316 transitions. [2022-11-20 11:25:10,041 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9293785310734464 [2022-11-20 11:25:10,041 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1316 transitions. [2022-11-20 11:25:10,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1316 transitions. [2022-11-20 11:25:10,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:25:10,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1316 transitions. [2022-11-20 11:25:10,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.6666666666667) internal successors, (1316), 3 states have internal predecessors, (1316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:10,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:10,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 472.0) internal successors, (1888), 4 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:10,048 INFO L175 Difference]: Start difference. First operand has 367 places, 357 transitions, 794 flow. Second operand 3 states and 1316 transitions. [2022-11-20 11:25:10,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 357 transitions, 815 flow [2022-11-20 11:25:10,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 357 transitions, 811 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:25:10,055 INFO L231 Difference]: Finished difference. Result has 366 places, 0 transitions, 0 flow [2022-11-20 11:25:10,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=472, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=366, PETRI_TRANSITIONS=0} [2022-11-20 11:25:10,056 INFO L288 CegarLoopForPetriNet]: 432 programPoint places, -66 predicate places. [2022-11-20 11:25:10,057 INFO L495 AbstractCegarLoop]: Abstraction has has 366 places, 0 transitions, 0 flow [2022-11-20 11:25:10,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:25:10,060 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (73 of 74 remaining) [2022-11-20 11:25:10,061 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2022-11-20 11:25:10,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2022-11-20 11:25:10,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2022-11-20 11:25:10,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2022-11-20 11:25:10,062 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2022-11-20 11:25:10,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2022-11-20 11:25:10,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2022-11-20 11:25:10,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2022-11-20 11:25:10,063 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2022-11-20 11:25:10,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2022-11-20 11:25:10,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2022-11-20 11:25:10,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2022-11-20 11:25:10,064 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2022-11-20 11:25:10,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2022-11-20 11:25:10,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2022-11-20 11:25:10,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2022-11-20 11:25:10,065 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2022-11-20 11:25:10,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2022-11-20 11:25:10,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2022-11-20 11:25:10,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2022-11-20 11:25:10,066 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2022-11-20 11:25:10,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2022-11-20 11:25:10,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2022-11-20 11:25:10,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2022-11-20 11:25:10,067 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2022-11-20 11:25:10,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2022-11-20 11:25:10,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2022-11-20 11:25:10,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2022-11-20 11:25:10,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2022-11-20 11:25:10,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2022-11-20 11:25:10,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2022-11-20 11:25:10,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2022-11-20 11:25:10,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2022-11-20 11:25:10,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2022-11-20 11:25:10,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2022-11-20 11:25:10,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2022-11-20 11:25:10,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2022-11-20 11:25:10,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2022-11-20 11:25:10,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2022-11-20 11:25:10,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2022-11-20 11:25:10,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (32 of 74 remaining) [2022-11-20 11:25:10,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (31 of 74 remaining) [2022-11-20 11:25:10,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2022-11-20 11:25:10,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 74 remaining) [2022-11-20 11:25:10,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 74 remaining) [2022-11-20 11:25:10,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (27 of 74 remaining) [2022-11-20 11:25:10,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2022-11-20 11:25:10,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2022-11-20 11:25:10,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2022-11-20 11:25:10,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2022-11-20 11:25:10,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2022-11-20 11:25:10,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2022-11-20 11:25:10,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2022-11-20 11:25:10,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2022-11-20 11:25:10,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2022-11-20 11:25:10,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2022-11-20 11:25:10,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2022-11-20 11:25:10,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2022-11-20 11:25:10,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2022-11-20 11:25:10,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2022-11-20 11:25:10,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2022-11-20 11:25:10,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2022-11-20 11:25:10,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2022-11-20 11:25:10,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2022-11-20 11:25:10,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2022-11-20 11:25:10,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2022-11-20 11:25:10,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2022-11-20 11:25:10,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2022-11-20 11:25:10,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2022-11-20 11:25:10,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2022-11-20 11:25:10,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2022-11-20 11:25:10,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2022-11-20 11:25:10,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2022-11-20 11:25:10,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-20 11:25:10,080 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:25:10,087 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:25:10,088 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:25:10,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:25:10 BasicIcfg [2022-11-20 11:25:10,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:25:10,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:25:10,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:25:10,095 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:25:10,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:24:03" (3/4) ... [2022-11-20 11:25:10,099 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:25:10,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 11:25:10,107 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 11:25:10,114 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-20 11:25:10,115 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 11:25:10,115 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:25:10,116 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:25:10,170 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:25:10,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:25:10,171 INFO L158 Benchmark]: Toolchain (without parser) took 69123.73ms. Allocated memory was 153.1MB in the beginning and 12.0GB in the end (delta: 11.8GB). Free memory was 113.5MB in the beginning and 9.6GB in the end (delta: -9.5GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2022-11-20 11:25:10,172 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:25:10,172 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.55ms. Allocated memory is still 153.1MB. Free memory was 112.9MB in the beginning and 118.2MB in the end (delta: -5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:25:10,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.75ms. Allocated memory is still 153.1MB. Free memory was 118.2MB in the beginning and 114.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:25:10,173 INFO L158 Benchmark]: Boogie Preprocessor took 58.77ms. Allocated memory is still 153.1MB. Free memory was 114.6MB in the beginning and 111.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:25:10,173 INFO L158 Benchmark]: RCFGBuilder took 1380.33ms. Allocated memory is still 153.1MB. Free memory was 111.2MB in the beginning and 76.0MB in the end (delta: 35.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-20 11:25:10,174 INFO L158 Benchmark]: TraceAbstraction took 67085.75ms. Allocated memory was 153.1MB in the beginning and 12.0GB in the end (delta: 11.8GB). Free memory was 75.5MB in the beginning and 9.6GB in the end (delta: -9.5GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2022-11-20 11:25:10,174 INFO L158 Benchmark]: Witness Printer took 76.00ms. Allocated memory is still 12.0GB. Free memory was 9.6GB in the beginning and 9.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:25:10,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.55ms. Allocated memory is still 153.1MB. Free memory was 112.9MB in the beginning and 118.2MB in the end (delta: -5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.75ms. Allocated memory is still 153.1MB. Free memory was 118.2MB in the beginning and 114.6MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.77ms. Allocated memory is still 153.1MB. Free memory was 114.6MB in the beginning and 111.2MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1380.33ms. Allocated memory is still 153.1MB. Free memory was 111.2MB in the beginning and 76.0MB in the end (delta: 35.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 67085.75ms. Allocated memory was 153.1MB in the beginning and 12.0GB in the end (delta: 11.8GB). Free memory was 75.5MB in the beginning and 9.6GB in the end (delta: -9.5GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. * Witness Printer took 76.00ms. Allocated memory is still 12.0GB. Free memory was 9.6GB in the beginning and 9.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 667 locations, 74 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 66.8s, OverallIterations: 27, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 58.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1013 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1013 mSDsluCounter, 1642 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 802 mSDsCounter, 755 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3787 IncrementalHoareTripleChecker+Invalid, 4542 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 755 mSolverCounterUnsat, 840 mSDtfsCounter, 3787 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1214occurred in iteration=18, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 3421 NumberOfCodeBlocks, 3421 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3394 ConstructedInterpolants, 0 QuantifiedInterpolants, 4949 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 44 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 11:25:10,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578eec0d-c2cf-4bc6-ad0e-0eec2c632c10/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE