./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:26:35,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:26:35,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:26:35,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:26:35,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:26:35,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:26:35,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:26:35,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:26:35,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:26:35,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:26:35,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:26:35,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:26:35,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:26:35,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:26:35,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:26:35,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:26:35,357 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:26:35,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:26:35,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:26:35,366 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:26:35,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:26:35,372 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:26:35,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:26:35,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:26:35,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:26:35,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:26:35,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:26:35,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:26:35,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:26:35,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:26:35,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:26:35,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:26:35,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:26:35,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:26:35,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:26:35,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:26:35,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:26:35,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:26:35,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:26:35,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:26:35,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:26:35,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:26:35,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:26:35,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:26:35,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:26:35,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:26:35,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:26:35,452 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:26:35,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:26:35,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:26:35,454 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:26:35,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:26:35,455 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:26:35,455 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:26:35,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:26:35,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:26:35,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:26:35,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:26:35,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:26:35,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:26:35,457 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:26:35,457 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:26:35,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:26:35,457 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:26:35,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:26:35,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:26:35,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:26:35,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:26:35,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:26:35,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:26:35,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:26:35,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:26:35,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:26:35,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:26:35,463 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:26:35,463 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:26:35,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:26:35,464 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_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d [2022-11-16 12:26:35,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:26:35,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:26:35,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:26:35,757 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:26:35,758 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:26:35,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2022-11-16 12:26:35,833 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/data/0085782b3/48951cc4b0eb40ffa9df0c03d3a189f5/FLAG0c299e412 [2022-11-16 12:26:36,262 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:26:36,267 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2022-11-16 12:26:36,274 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/data/0085782b3/48951cc4b0eb40ffa9df0c03d3a189f5/FLAG0c299e412 [2022-11-16 12:26:36,650 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/data/0085782b3/48951cc4b0eb40ffa9df0c03d3a189f5 [2022-11-16 12:26:36,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:26:36,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:26:36,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:26:36,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:26:36,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:26:36,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:26:36" (1/1) ... [2022-11-16 12:26:36,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7bca0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:36, skipping insertion in model container [2022-11-16 12:26:36,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:26:36" (1/1) ... [2022-11-16 12:26:36,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:26:36,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:26:37,042 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2022-11-16 12:26:37,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:26:37,068 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:26:37,152 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2022-11-16 12:26:37,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:26:37,172 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:26:37,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37 WrapperNode [2022-11-16 12:26:37,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:26:37,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:26:37,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:26:37,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:26:37,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,241 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 850 [2022-11-16 12:26:37,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:26:37,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:26:37,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:26:37,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:26:37,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,321 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:26:37,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:26:37,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:26:37,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:26:37,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (1/1) ... [2022-11-16 12:26:37,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:26:37,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:26:37,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:26:37,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb931724-95c8-4746-856f-b6b17c971411/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:26:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:26:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:26:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:26:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:26:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:26:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:26:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:26:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:26:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:26:37,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:26:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:26:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:26:37,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:26:37,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:26:37,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:26:37,431 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:26:37,580 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:26:37,582 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:26:38,974 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:26:39,001 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:26:39,004 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 12:26:39,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:26:39 BoogieIcfgContainer [2022-11-16 12:26:39,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:26:39,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:26:39,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:26:39,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:26:39,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:26:36" (1/3) ... [2022-11-16 12:26:39,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a44ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:26:39, skipping insertion in model container [2022-11-16 12:26:39,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:26:37" (2/3) ... [2022-11-16 12:26:39,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a44ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:26:39, skipping insertion in model container [2022-11-16 12:26:39,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:26:39" (3/3) ... [2022-11-16 12:26:39,023 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2022-11-16 12:26:39,037 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:26:39,047 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:26:39,047 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2022-11-16 12:26:39,048 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:26:39,295 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:26:39,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1063 places, 1111 transitions, 2246 flow [2022-11-16 12:26:40,224 INFO L130 PetriNetUnfolder]: 58/1108 cut-off events. [2022-11-16 12:26:40,224 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:26:40,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 1108 events. 58/1108 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3890 event pairs, 0 based on Foata normal form. 0/898 useless extension candidates. Maximal degree in co-relation 851. Up to 2 conditions per place. [2022-11-16 12:26:40,279 INFO L82 GeneralOperation]: Start removeDead. Operand has 1063 places, 1111 transitions, 2246 flow [2022-11-16 12:26:40,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1038 places, 1084 transitions, 2186 flow [2022-11-16 12:26:40,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:26:40,355 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;@32887d21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:26:40,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 284 error locations. [2022-11-16 12:26:40,361 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-11-16 12:26:40,361 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:26:40,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:40,362 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:40,363 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:26:40,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:40,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1081308416, now seen corresponding path program 1 times [2022-11-16 12:26:40,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:40,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648754743] [2022-11-16 12:26:40,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:40,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:40,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:40,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648754743] [2022-11-16 12:26:40,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648754743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:40,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:40,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:26:40,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098024385] [2022-11-16 12:26:40,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:40,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:26:40,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:40,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:26:40,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:26:40,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-16 12:26:40,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1084 transitions, 2186 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:40,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:40,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-16 12:26:40,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:26:46,675 INFO L130 PetriNetUnfolder]: 701/8730 cut-off events. [2022-11-16 12:26:46,676 INFO L131 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2022-11-16 12:26:46,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9517 conditions, 8730 events. 701/8730 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 81443 event pairs, 285 based on Foata normal form. 1280/8064 useless extension candidates. Maximal degree in co-relation 8543. Up to 664 conditions per place. [2022-11-16 12:26:47,231 INFO L137 encePairwiseOnDemand]: 1090/1111 looper letters, 39 selfloop transitions, 2 changer transitions 2/1065 dead transitions. [2022-11-16 12:26:47,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 1065 transitions, 2230 flow [2022-11-16 12:26:47,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:26:47,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:26:47,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-16 12:26:47,261 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9621962196219622 [2022-11-16 12:26:47,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-16 12:26:47,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-16 12:26:47,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:26:47,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-16 12:26:47,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:47,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:47,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:47,304 INFO L175 Difference]: Start difference. First operand has 1038 places, 1084 transitions, 2186 flow. Second operand 3 states and 3207 transitions. [2022-11-16 12:26:47,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1039 places, 1065 transitions, 2230 flow [2022-11-16 12:26:47,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1033 places, 1065 transitions, 2218 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:26:47,334 INFO L231 Difference]: Finished difference. Result has 1033 places, 1063 transitions, 2136 flow [2022-11-16 12:26:47,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=1031, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2136, PETRI_PLACES=1033, PETRI_TRANSITIONS=1063} [2022-11-16 12:26:47,341 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -5 predicate places. [2022-11-16 12:26:47,341 INFO L495 AbstractCegarLoop]: Abstraction has has 1033 places, 1063 transitions, 2136 flow [2022-11-16 12:26:47,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:47,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:47,344 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] [2022-11-16 12:26:47,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:26:47,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:26:47,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:47,346 INFO L85 PathProgramCache]: Analyzing trace with hash 174051869, now seen corresponding path program 1 times [2022-11-16 12:26:47,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:47,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380861090] [2022-11-16 12:26:47,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:47,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:47,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:47,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380861090] [2022-11-16 12:26:47,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380861090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:47,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:47,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:26:47,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659096177] [2022-11-16 12:26:47,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:47,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:26:47,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:47,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:26:47,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:26:47,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-16 12:26:47,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1033 places, 1063 transitions, 2136 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:47,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:47,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-16 12:26:47,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:26:53,564 INFO L130 PetriNetUnfolder]: 1464/15281 cut-off events. [2022-11-16 12:26:53,565 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-16 12:26:54,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16937 conditions, 15281 events. 1464/15281 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 160305 event pairs, 735 based on Foata normal form. 0/11868 useless extension candidates. Maximal degree in co-relation 16893. Up to 1377 conditions per place. [2022-11-16 12:26:54,362 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 39 selfloop transitions, 2 changer transitions 0/1062 dead transitions. [2022-11-16 12:26:54,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1032 places, 1062 transitions, 2216 flow [2022-11-16 12:26:54,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:26:54,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:26:54,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3189 transitions. [2022-11-16 12:26:54,371 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567956795679567 [2022-11-16 12:26:54,371 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3189 transitions. [2022-11-16 12:26:54,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3189 transitions. [2022-11-16 12:26:54,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:26:54,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3189 transitions. [2022-11-16 12:26:54,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:54,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:54,393 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:54,393 INFO L175 Difference]: Start difference. First operand has 1033 places, 1063 transitions, 2136 flow. Second operand 3 states and 3189 transitions. [2022-11-16 12:26:54,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1032 places, 1062 transitions, 2216 flow [2022-11-16 12:26:54,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1030 places, 1062 transitions, 2212 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:26:54,414 INFO L231 Difference]: Finished difference. Result has 1030 places, 1062 transitions, 2134 flow [2022-11-16 12:26:54,416 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=1028, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1060, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2134, PETRI_PLACES=1030, PETRI_TRANSITIONS=1062} [2022-11-16 12:26:54,417 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -8 predicate places. [2022-11-16 12:26:54,417 INFO L495 AbstractCegarLoop]: Abstraction has has 1030 places, 1062 transitions, 2134 flow [2022-11-16 12:26:54,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:54,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:26:54,421 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] [2022-11-16 12:26:54,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:26:54,421 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:26:54,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:54,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1670486049, now seen corresponding path program 1 times [2022-11-16 12:26:54,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:54,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145589095] [2022-11-16 12:26:54,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:54,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:54,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:26:54,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:54,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145589095] [2022-11-16 12:26:54,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145589095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:54,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:54,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:26:54,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194625136] [2022-11-16 12:26:54,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:54,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:26:54,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:54,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:26:54,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:26:54,498 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-16 12:26:54,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1030 places, 1062 transitions, 2134 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:26:54,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:26:54,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-16 12:26:54,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:01,043 INFO L130 PetriNetUnfolder]: 1490/15195 cut-off events. [2022-11-16 12:27:01,044 INFO L131 PetriNetUnfolder]: For 288/351 co-relation queries the response was YES. [2022-11-16 12:27:01,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16633 conditions, 15195 events. 1490/15195 cut-off events. For 288/351 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 163604 event pairs, 735 based on Foata normal form. 0/11772 useless extension candidates. Maximal degree in co-relation 16582. Up to 1414 conditions per place. [2022-11-16 12:27:01,704 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 39 selfloop transitions, 2 changer transitions 0/1061 dead transitions. [2022-11-16 12:27:01,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 1061 transitions, 2214 flow [2022-11-16 12:27:01,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:01,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:01,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3189 transitions. [2022-11-16 12:27:01,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567956795679567 [2022-11-16 12:27:01,712 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3189 transitions. [2022-11-16 12:27:01,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3189 transitions. [2022-11-16 12:27:01,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:01,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3189 transitions. [2022-11-16 12:27:01,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:01,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:01,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:01,733 INFO L175 Difference]: Start difference. First operand has 1030 places, 1062 transitions, 2134 flow. Second operand 3 states and 3189 transitions. [2022-11-16 12:27:01,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1031 places, 1061 transitions, 2214 flow [2022-11-16 12:27:01,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1029 places, 1061 transitions, 2210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:01,751 INFO L231 Difference]: Finished difference. Result has 1029 places, 1061 transitions, 2132 flow [2022-11-16 12:27:01,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=1027, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1059, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2132, PETRI_PLACES=1029, PETRI_TRANSITIONS=1061} [2022-11-16 12:27:01,754 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -9 predicate places. [2022-11-16 12:27:01,754 INFO L495 AbstractCegarLoop]: Abstraction has has 1029 places, 1061 transitions, 2132 flow [2022-11-16 12:27:01,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:01,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:01,757 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] [2022-11-16 12:27:01,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:27:01,757 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:01,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:01,758 INFO L85 PathProgramCache]: Analyzing trace with hash 585370888, now seen corresponding path program 1 times [2022-11-16 12:27:01,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:01,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227950609] [2022-11-16 12:27:01,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:01,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:01,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:01,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227950609] [2022-11-16 12:27:01,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227950609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:01,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:01,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:01,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371561473] [2022-11-16 12:27:01,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:01,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:01,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:01,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:01,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:01,817 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-16 12:27:01,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1029 places, 1061 transitions, 2132 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:01,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:01,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-16 12:27:01,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:03,032 INFO L130 PetriNetUnfolder]: 158/2710 cut-off events. [2022-11-16 12:27:03,033 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:27:03,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 2710 events. 158/2710 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 18425 event pairs, 48 based on Foata normal form. 0/2159 useless extension candidates. Maximal degree in co-relation 2844. Up to 135 conditions per place. [2022-11-16 12:27:03,162 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 36 selfloop transitions, 2 changer transitions 0/1060 dead transitions. [2022-11-16 12:27:03,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 1060 transitions, 2206 flow [2022-11-16 12:27:03,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:03,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:03,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-16 12:27:03,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9585958595859586 [2022-11-16 12:27:03,171 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-16 12:27:03,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-16 12:27:03,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:03,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-16 12:27:03,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:03,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:03,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:03,211 INFO L175 Difference]: Start difference. First operand has 1029 places, 1061 transitions, 2132 flow. Second operand 3 states and 3195 transitions. [2022-11-16 12:27:03,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1030 places, 1060 transitions, 2206 flow [2022-11-16 12:27:03,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1028 places, 1060 transitions, 2202 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:03,229 INFO L231 Difference]: Finished difference. Result has 1028 places, 1060 transitions, 2130 flow [2022-11-16 12:27:03,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2126, PETRI_DIFFERENCE_MINUEND_PLACES=1026, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1058, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2130, PETRI_PLACES=1028, PETRI_TRANSITIONS=1060} [2022-11-16 12:27:03,232 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -10 predicate places. [2022-11-16 12:27:03,232 INFO L495 AbstractCegarLoop]: Abstraction has has 1028 places, 1060 transitions, 2130 flow [2022-11-16 12:27:03,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:03,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:03,235 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] [2022-11-16 12:27:03,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:27:03,235 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:03,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:03,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1211814862, now seen corresponding path program 1 times [2022-11-16 12:27:03,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:03,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836293216] [2022-11-16 12:27:03,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:03,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:03,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:03,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836293216] [2022-11-16 12:27:03,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836293216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:03,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:03,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:03,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572226559] [2022-11-16 12:27:03,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:03,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:03,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:03,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:03,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:03,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-16 12:27:03,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1028 places, 1060 transitions, 2130 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:03,297 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:03,297 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-16 12:27:03,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:04,093 INFO L130 PetriNetUnfolder]: 98/1629 cut-off events. [2022-11-16 12:27:04,094 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:27:04,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1774 conditions, 1629 events. 98/1629 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8619 event pairs, 36 based on Foata normal form. 0/1309 useless extension candidates. Maximal degree in co-relation 1709. Up to 100 conditions per place. [2022-11-16 12:27:04,132 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1059 dead transitions. [2022-11-16 12:27:04,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1029 places, 1059 transitions, 2186 flow [2022-11-16 12:27:04,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:04,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-16 12:27:04,139 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-16 12:27:04,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-16 12:27:04,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-16 12:27:04,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:04,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-16 12:27:04,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:04,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:04,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:04,157 INFO L175 Difference]: Start difference. First operand has 1028 places, 1060 transitions, 2130 flow. Second operand 3 states and 3213 transitions. [2022-11-16 12:27:04,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1029 places, 1059 transitions, 2186 flow [2022-11-16 12:27:04,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1027 places, 1059 transitions, 2182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:04,175 INFO L231 Difference]: Finished difference. Result has 1027 places, 1059 transitions, 2128 flow [2022-11-16 12:27:04,176 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=1025, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1059, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1057, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2128, PETRI_PLACES=1027, PETRI_TRANSITIONS=1059} [2022-11-16 12:27:04,177 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -11 predicate places. [2022-11-16 12:27:04,177 INFO L495 AbstractCegarLoop]: Abstraction has has 1027 places, 1059 transitions, 2128 flow [2022-11-16 12:27:04,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:04,179 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:04,179 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] [2022-11-16 12:27:04,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:27:04,180 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:04,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:04,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1570649234, now seen corresponding path program 1 times [2022-11-16 12:27:04,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:04,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507892833] [2022-11-16 12:27:04,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:04,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:04,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:04,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507892833] [2022-11-16 12:27:04,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507892833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:04,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:04,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:04,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623837348] [2022-11-16 12:27:04,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:04,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:04,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:04,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:04,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-16 12:27:04,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 1059 transitions, 2128 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:04,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:04,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-16 12:27:04,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:05,061 INFO L130 PetriNetUnfolder]: 113/2077 cut-off events. [2022-11-16 12:27:05,061 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-16 12:27:05,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 2077 events. 113/2077 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11133 event pairs, 30 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 2132. Up to 88 conditions per place. [2022-11-16 12:27:05,143 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1058 dead transitions. [2022-11-16 12:27:05,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1028 places, 1058 transitions, 2178 flow [2022-11-16 12:27:05,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:05,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-16 12:27:05,151 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-16 12:27:05,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-16 12:27:05,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-16 12:27:05,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:05,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-16 12:27:05,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:05,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:05,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:05,169 INFO L175 Difference]: Start difference. First operand has 1027 places, 1059 transitions, 2128 flow. Second operand 3 states and 3219 transitions. [2022-11-16 12:27:05,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1028 places, 1058 transitions, 2178 flow [2022-11-16 12:27:05,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1026 places, 1058 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:05,187 INFO L231 Difference]: Finished difference. Result has 1026 places, 1058 transitions, 2126 flow [2022-11-16 12:27:05,189 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2122, PETRI_DIFFERENCE_MINUEND_PLACES=1024, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1056, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2126, PETRI_PLACES=1026, PETRI_TRANSITIONS=1058} [2022-11-16 12:27:05,189 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -12 predicate places. [2022-11-16 12:27:05,190 INFO L495 AbstractCegarLoop]: Abstraction has has 1026 places, 1058 transitions, 2126 flow [2022-11-16 12:27:05,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:05,191 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:05,191 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] [2022-11-16 12:27:05,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:27:05,192 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:05,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:05,192 INFO L85 PathProgramCache]: Analyzing trace with hash 525695634, now seen corresponding path program 1 times [2022-11-16 12:27:05,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:05,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429231445] [2022-11-16 12:27:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:05,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:05,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:05,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:05,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429231445] [2022-11-16 12:27:05,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429231445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:05,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:05,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:05,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059968551] [2022-11-16 12:27:05,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:05,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:05,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:05,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:05,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:05,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-16 12:27:05,250 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1026 places, 1058 transitions, 2126 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:05,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:05,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-16 12:27:05,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:06,254 INFO L130 PetriNetUnfolder]: 158/2203 cut-off events. [2022-11-16 12:27:06,255 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:27:06,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 2203 events. 158/2203 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 14065 event pairs, 72 based on Foata normal form. 0/1771 useless extension candidates. Maximal degree in co-relation 2395. Up to 190 conditions per place. [2022-11-16 12:27:06,345 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1057 dead transitions. [2022-11-16 12:27:06,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1057 transitions, 2218 flow [2022-11-16 12:27:06,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:06,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-16 12:27:06,353 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-16 12:27:06,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-16 12:27:06,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-16 12:27:06,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:06,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-16 12:27:06,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:06,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:06,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:06,375 INFO L175 Difference]: Start difference. First operand has 1026 places, 1058 transitions, 2126 flow. Second operand 3 states and 3177 transitions. [2022-11-16 12:27:06,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1027 places, 1057 transitions, 2218 flow [2022-11-16 12:27:06,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1025 places, 1057 transitions, 2214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:06,398 INFO L231 Difference]: Finished difference. Result has 1025 places, 1057 transitions, 2124 flow [2022-11-16 12:27:06,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2120, PETRI_DIFFERENCE_MINUEND_PLACES=1023, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1055, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2124, PETRI_PLACES=1025, PETRI_TRANSITIONS=1057} [2022-11-16 12:27:06,400 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -13 predicate places. [2022-11-16 12:27:06,400 INFO L495 AbstractCegarLoop]: Abstraction has has 1025 places, 1057 transitions, 2124 flow [2022-11-16 12:27:06,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:06,402 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:06,402 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] [2022-11-16 12:27:06,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:27:06,403 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:06,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:06,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1197351628, now seen corresponding path program 1 times [2022-11-16 12:27:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:06,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538525124] [2022-11-16 12:27:06,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:06,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:06,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:06,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538525124] [2022-11-16 12:27:06,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538525124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:06,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:06,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:06,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667809983] [2022-11-16 12:27:06,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:06,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:06,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:06,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:06,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:06,466 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-16 12:27:06,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1025 places, 1057 transitions, 2124 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:06,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:06,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-16 12:27:06,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:07,803 INFO L130 PetriNetUnfolder]: 134/2174 cut-off events. [2022-11-16 12:27:07,803 INFO L131 PetriNetUnfolder]: For 27/77 co-relation queries the response was YES. [2022-11-16 12:27:07,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 2174 events. 134/2174 cut-off events. For 27/77 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14545 event pairs, 48 based on Foata normal form. 0/1743 useless extension candidates. Maximal degree in co-relation 2256. Up to 135 conditions per place. [2022-11-16 12:27:07,941 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 36 selfloop transitions, 2 changer transitions 0/1056 dead transitions. [2022-11-16 12:27:07,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 1056 transitions, 2198 flow [2022-11-16 12:27:07,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:07,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:07,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-16 12:27:07,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9585958595859586 [2022-11-16 12:27:07,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-16 12:27:07,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-16 12:27:07,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:07,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-16 12:27:07,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:07,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:07,972 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:07,972 INFO L175 Difference]: Start difference. First operand has 1025 places, 1057 transitions, 2124 flow. Second operand 3 states and 3195 transitions. [2022-11-16 12:27:07,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 1056 transitions, 2198 flow [2022-11-16 12:27:07,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1024 places, 1056 transitions, 2194 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:07,996 INFO L231 Difference]: Finished difference. Result has 1024 places, 1056 transitions, 2122 flow [2022-11-16 12:27:07,998 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2118, PETRI_DIFFERENCE_MINUEND_PLACES=1022, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1054, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2122, PETRI_PLACES=1024, PETRI_TRANSITIONS=1056} [2022-11-16 12:27:07,998 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -14 predicate places. [2022-11-16 12:27:07,999 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 1056 transitions, 2122 flow [2022-11-16 12:27:08,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:08,000 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:08,001 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] [2022-11-16 12:27:08,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:27:08,001 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:08,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:08,002 INFO L85 PathProgramCache]: Analyzing trace with hash 279287825, now seen corresponding path program 1 times [2022-11-16 12:27:08,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:08,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850315198] [2022-11-16 12:27:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:08,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:08,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:08,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850315198] [2022-11-16 12:27:08,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850315198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:08,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:08,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:08,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404315112] [2022-11-16 12:27:08,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:08,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:08,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:08,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:08,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:08,063 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-16 12:27:08,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1056 transitions, 2122 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:08,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:08,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-16 12:27:08,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:09,013 INFO L130 PetriNetUnfolder]: 98/1625 cut-off events. [2022-11-16 12:27:09,013 INFO L131 PetriNetUnfolder]: For 21/35 co-relation queries the response was YES. [2022-11-16 12:27:09,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1625 events. 98/1625 cut-off events. For 21/35 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9166 event pairs, 36 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 1659. Up to 100 conditions per place. [2022-11-16 12:27:09,110 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1055 dead transitions. [2022-11-16 12:27:09,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1025 places, 1055 transitions, 2178 flow [2022-11-16 12:27:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-16 12:27:09,119 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-16 12:27:09,119 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-16 12:27:09,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-16 12:27:09,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:09,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-16 12:27:09,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:09,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:09,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:09,135 INFO L175 Difference]: Start difference. First operand has 1024 places, 1056 transitions, 2122 flow. Second operand 3 states and 3213 transitions. [2022-11-16 12:27:09,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1025 places, 1055 transitions, 2178 flow [2022-11-16 12:27:09,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1023 places, 1055 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:09,153 INFO L231 Difference]: Finished difference. Result has 1023 places, 1055 transitions, 2120 flow [2022-11-16 12:27:09,155 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1053, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2120, PETRI_PLACES=1023, PETRI_TRANSITIONS=1055} [2022-11-16 12:27:09,156 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -15 predicate places. [2022-11-16 12:27:09,156 INFO L495 AbstractCegarLoop]: Abstraction has has 1023 places, 1055 transitions, 2120 flow [2022-11-16 12:27:09,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:09,157 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:09,158 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] [2022-11-16 12:27:09,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:27:09,158 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:09,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1986649543, now seen corresponding path program 1 times [2022-11-16 12:27:09,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:09,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025811631] [2022-11-16 12:27:09,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:09,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:09,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:09,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:09,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025811631] [2022-11-16 12:27:09,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025811631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:09,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:09,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:09,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797617895] [2022-11-16 12:27:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:09,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:09,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:09,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:09,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:09,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-16 12:27:09,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1055 transitions, 2120 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:09,214 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:09,214 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-16 12:27:09,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:10,273 INFO L130 PetriNetUnfolder]: 101/1807 cut-off events. [2022-11-16 12:27:10,273 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-11-16 12:27:10,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1807 events. 101/1807 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9661 event pairs, 30 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 1819. Up to 88 conditions per place. [2022-11-16 12:27:10,379 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1054 dead transitions. [2022-11-16 12:27:10,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1054 transitions, 2170 flow [2022-11-16 12:27:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-16 12:27:10,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-16 12:27:10,387 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-16 12:27:10,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-16 12:27:10,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:10,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-16 12:27:10,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:10,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:10,407 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:10,407 INFO L175 Difference]: Start difference. First operand has 1023 places, 1055 transitions, 2120 flow. Second operand 3 states and 3219 transitions. [2022-11-16 12:27:10,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1024 places, 1054 transitions, 2170 flow [2022-11-16 12:27:10,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1022 places, 1054 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:10,429 INFO L231 Difference]: Finished difference. Result has 1022 places, 1054 transitions, 2118 flow [2022-11-16 12:27:10,432 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=1020, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1052, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2118, PETRI_PLACES=1022, PETRI_TRANSITIONS=1054} [2022-11-16 12:27:10,433 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -16 predicate places. [2022-11-16 12:27:10,434 INFO L495 AbstractCegarLoop]: Abstraction has has 1022 places, 1054 transitions, 2118 flow [2022-11-16 12:27:10,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:10,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:10,436 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:10,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:27:10,436 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:10,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash -706771151, now seen corresponding path program 1 times [2022-11-16 12:27:10,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:10,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230188094] [2022-11-16 12:27:10,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:10,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:10,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:10,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:10,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230188094] [2022-11-16 12:27:10,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230188094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:10,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:10,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:10,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831653283] [2022-11-16 12:27:10,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:10,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:10,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:10,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:10,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:10,517 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-16 12:27:10,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 1054 transitions, 2118 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:10,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:10,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-16 12:27:10,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:11,632 INFO L130 PetriNetUnfolder]: 146/1933 cut-off events. [2022-11-16 12:27:11,632 INFO L131 PetriNetUnfolder]: For 39/98 co-relation queries the response was YES. [2022-11-16 12:27:11,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2168 conditions, 1933 events. 146/1933 cut-off events. For 39/98 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13188 event pairs, 72 based on Foata normal form. 0/1547 useless extension candidates. Maximal degree in co-relation 2061. Up to 190 conditions per place. [2022-11-16 12:27:11,733 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1053 dead transitions. [2022-11-16 12:27:11,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1053 transitions, 2210 flow [2022-11-16 12:27:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:11,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-16 12:27:11,742 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-16 12:27:11,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-16 12:27:11,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-16 12:27:11,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:11,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-16 12:27:11,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:11,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:11,758 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:11,759 INFO L175 Difference]: Start difference. First operand has 1022 places, 1054 transitions, 2118 flow. Second operand 3 states and 3177 transitions. [2022-11-16 12:27:11,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1053 transitions, 2210 flow [2022-11-16 12:27:11,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1021 places, 1053 transitions, 2206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:11,782 INFO L231 Difference]: Finished difference. Result has 1021 places, 1053 transitions, 2116 flow [2022-11-16 12:27:11,784 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2112, PETRI_DIFFERENCE_MINUEND_PLACES=1019, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1051, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2116, PETRI_PLACES=1021, PETRI_TRANSITIONS=1053} [2022-11-16 12:27:11,784 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -17 predicate places. [2022-11-16 12:27:11,784 INFO L495 AbstractCegarLoop]: Abstraction has has 1021 places, 1053 transitions, 2116 flow [2022-11-16 12:27:11,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:11,786 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:11,786 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] [2022-11-16 12:27:11,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:27:11,786 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:11,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:11,787 INFO L85 PathProgramCache]: Analyzing trace with hash 546425009, now seen corresponding path program 1 times [2022-11-16 12:27:11,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:11,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005413820] [2022-11-16 12:27:11,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:11,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:11,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:11,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:11,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005413820] [2022-11-16 12:27:11,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005413820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:11,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:11,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:11,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396135592] [2022-11-16 12:27:11,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:11,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:11,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:11,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:11,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:11,843 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-16 12:27:11,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1021 places, 1053 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:11,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:11,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-16 12:27:11,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:12,629 INFO L130 PetriNetUnfolder]: 110/1598 cut-off events. [2022-11-16 12:27:12,630 INFO L131 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-11-16 12:27:12,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 1598 events. 110/1598 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9463 event pairs, 48 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1627. Up to 134 conditions per place. [2022-11-16 12:27:12,688 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 35 selfloop transitions, 2 changer transitions 0/1052 dead transitions. [2022-11-16 12:27:12,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 1052 transitions, 2188 flow [2022-11-16 12:27:12,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:12,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:12,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3194 transitions. [2022-11-16 12:27:12,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582958295829583 [2022-11-16 12:27:12,694 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3194 transitions. [2022-11-16 12:27:12,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3194 transitions. [2022-11-16 12:27:12,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:12,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3194 transitions. [2022-11-16 12:27:12,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1064.6666666666667) internal successors, (3194), 3 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:12,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:12,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:12,708 INFO L175 Difference]: Start difference. First operand has 1021 places, 1053 transitions, 2116 flow. Second operand 3 states and 3194 transitions. [2022-11-16 12:27:12,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1022 places, 1052 transitions, 2188 flow [2022-11-16 12:27:12,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1020 places, 1052 transitions, 2184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:12,731 INFO L231 Difference]: Finished difference. Result has 1020 places, 1052 transitions, 2114 flow [2022-11-16 12:27:12,732 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=1018, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2114, PETRI_PLACES=1020, PETRI_TRANSITIONS=1052} [2022-11-16 12:27:12,733 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -18 predicate places. [2022-11-16 12:27:12,733 INFO L495 AbstractCegarLoop]: Abstraction has has 1020 places, 1052 transitions, 2114 flow [2022-11-16 12:27:12,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:12,734 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:12,734 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:12,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:27:12,735 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:12,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:12,735 INFO L85 PathProgramCache]: Analyzing trace with hash 777469716, now seen corresponding path program 1 times [2022-11-16 12:27:12,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:12,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574544040] [2022-11-16 12:27:12,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:12,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:12,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:12,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574544040] [2022-11-16 12:27:12,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574544040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:12,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:12,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:12,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483341668] [2022-11-16 12:27:12,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:12,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:12,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:12,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:12,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:12,799 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-16 12:27:12,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1020 places, 1052 transitions, 2114 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:12,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:12,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-16 12:27:12,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:13,531 INFO L130 PetriNetUnfolder]: 98/1621 cut-off events. [2022-11-16 12:27:13,531 INFO L131 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2022-11-16 12:27:13,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 1621 events. 98/1621 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9425 event pairs, 36 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 1609. Up to 100 conditions per place. [2022-11-16 12:27:13,590 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1051 dead transitions. [2022-11-16 12:27:13,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1021 places, 1051 transitions, 2170 flow [2022-11-16 12:27:13,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:13,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-16 12:27:13,597 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-16 12:27:13,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-16 12:27:13,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-16 12:27:13,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:13,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-16 12:27:13,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:13,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:13,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:13,606 INFO L175 Difference]: Start difference. First operand has 1020 places, 1052 transitions, 2114 flow. Second operand 3 states and 3213 transitions. [2022-11-16 12:27:13,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1021 places, 1051 transitions, 2170 flow [2022-11-16 12:27:13,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1019 places, 1051 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:13,624 INFO L231 Difference]: Finished difference. Result has 1019 places, 1051 transitions, 2112 flow [2022-11-16 12:27:13,625 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2108, PETRI_DIFFERENCE_MINUEND_PLACES=1017, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1051, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1049, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2112, PETRI_PLACES=1019, PETRI_TRANSITIONS=1051} [2022-11-16 12:27:13,626 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -19 predicate places. [2022-11-16 12:27:13,626 INFO L495 AbstractCegarLoop]: Abstraction has has 1019 places, 1051 transitions, 2112 flow [2022-11-16 12:27:13,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:13,627 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:13,627 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:13,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:27:13,628 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:13,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:13,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1394563121, now seen corresponding path program 1 times [2022-11-16 12:27:13,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:13,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991189327] [2022-11-16 12:27:13,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:13,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:13,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:13,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:13,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991189327] [2022-11-16 12:27:13,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991189327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:13,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:13,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:13,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837359546] [2022-11-16 12:27:13,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:13,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:13,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:13,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:13,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:13,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-16 12:27:13,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1019 places, 1051 transitions, 2112 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:13,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:13,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-16 12:27:13,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:14,374 INFO L130 PetriNetUnfolder]: 89/1533 cut-off events. [2022-11-16 12:27:14,374 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-11-16 12:27:14,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1630 conditions, 1533 events. 89/1533 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7697 event pairs, 30 based on Foata normal form. 0/1245 useless extension candidates. Maximal degree in co-relation 1502. Up to 88 conditions per place. [2022-11-16 12:27:14,431 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1050 dead transitions. [2022-11-16 12:27:14,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1020 places, 1050 transitions, 2162 flow [2022-11-16 12:27:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:14,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:14,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-16 12:27:14,439 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-16 12:27:14,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-16 12:27:14,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-16 12:27:14,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:14,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-16 12:27:14,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:14,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:14,446 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:14,446 INFO L175 Difference]: Start difference. First operand has 1019 places, 1051 transitions, 2112 flow. Second operand 3 states and 3219 transitions. [2022-11-16 12:27:14,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1020 places, 1050 transitions, 2162 flow [2022-11-16 12:27:14,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1018 places, 1050 transitions, 2158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:14,461 INFO L231 Difference]: Finished difference. Result has 1018 places, 1050 transitions, 2110 flow [2022-11-16 12:27:14,462 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2106, PETRI_DIFFERENCE_MINUEND_PLACES=1016, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2110, PETRI_PLACES=1018, PETRI_TRANSITIONS=1050} [2022-11-16 12:27:14,463 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -20 predicate places. [2022-11-16 12:27:14,463 INFO L495 AbstractCegarLoop]: Abstraction has has 1018 places, 1050 transitions, 2110 flow [2022-11-16 12:27:14,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:14,464 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:14,464 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] [2022-11-16 12:27:14,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:27:14,465 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:14,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:14,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1182440276, now seen corresponding path program 1 times [2022-11-16 12:27:14,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:14,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022200273] [2022-11-16 12:27:14,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:14,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:14,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:14,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:14,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022200273] [2022-11-16 12:27:14,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022200273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:14,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:14,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:14,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410830288] [2022-11-16 12:27:14,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:14,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:14,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:14,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:14,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:14,519 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-16 12:27:14,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1018 places, 1050 transitions, 2110 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:14,522 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:14,522 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-16 12:27:14,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:15,171 INFO L130 PetriNetUnfolder]: 134/1643 cut-off events. [2022-11-16 12:27:15,171 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2022-11-16 12:27:15,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1643 events. 134/1643 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 11090 event pairs, 72 based on Foata normal form. 0/1323 useless extension candidates. Maximal degree in co-relation 1707. Up to 190 conditions per place. [2022-11-16 12:27:15,231 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1049 dead transitions. [2022-11-16 12:27:15,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1019 places, 1049 transitions, 2202 flow [2022-11-16 12:27:15,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:27:15,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:27:15,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-16 12:27:15,240 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-16 12:27:15,240 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-16 12:27:15,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-16 12:27:15,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:15,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-16 12:27:15,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,250 INFO L175 Difference]: Start difference. First operand has 1018 places, 1050 transitions, 2110 flow. Second operand 3 states and 3177 transitions. [2022-11-16 12:27:15,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1019 places, 1049 transitions, 2202 flow [2022-11-16 12:27:15,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1017 places, 1049 transitions, 2198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:27:15,265 INFO L231 Difference]: Finished difference. Result has 1017 places, 1049 transitions, 2108 flow [2022-11-16 12:27:15,266 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2104, PETRI_DIFFERENCE_MINUEND_PLACES=1015, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1047, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2108, PETRI_PLACES=1017, PETRI_TRANSITIONS=1049} [2022-11-16 12:27:15,267 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -21 predicate places. [2022-11-16 12:27:15,267 INFO L495 AbstractCegarLoop]: Abstraction has has 1017 places, 1049 transitions, 2108 flow [2022-11-16 12:27:15,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,268 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:15,268 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:15,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:27:15,268 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-16 12:27:15,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:15,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1679009641, now seen corresponding path program 1 times [2022-11-16 12:27:15,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:15,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032938064] [2022-11-16 12:27:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:15,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:15,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032938064] [2022-11-16 12:27:15,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032938064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:15,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:15,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:27:15,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847768542] [2022-11-16 12:27:15,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:15,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:27:15,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:15,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:27:15,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:27:15,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1111 [2022-11-16 12:27:15,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1017 places, 1049 transitions, 2108 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:27:15,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:15,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1111 [2022-11-16 12:27:15,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand