./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8ce32899aa465c1eaa89b234122d94aaf792bb347295ccb743670e04bba6b8e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:09:27,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:09:27,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:09:27,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:09:27,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:09:27,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:09:27,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:09:27,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:09:27,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:09:27,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:09:27,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:09:27,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:09:27,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:09:27,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:09:27,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:09:27,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:09:27,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:09:27,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:09:27,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:09:27,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:09:27,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:09:27,467 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:09:27,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:09:27,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:09:27,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:09:27,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:09:27,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:09:27,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:09:27,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:09:27,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:09:27,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:09:27,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:09:27,486 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:09:27,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:09:27,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:09:27,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:09:27,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:09:27,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:09:27,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:09:27,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:09:27,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:09:27,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:09:27,529 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:09:27,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:09:27,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:09:27,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:09:27,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:09:27,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:09:27,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:09:27,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:09:27,532 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:09:27,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:09:27,534 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:09:27,534 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:09:27,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:09:27,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:09:27,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:09:27,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:09:27,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:09:27,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:09:27,535 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:09:27,536 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:09:27,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:09:27,536 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:09:27,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:09:27,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:09:27,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:09:27,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:09:27,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:09:27,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:09:27,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:09:27,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:09:27,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:09:27,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:09:27,540 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:09:27,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:09:27,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:09:27,541 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_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8ce32899aa465c1eaa89b234122d94aaf792bb347295ccb743670e04bba6b8e [2022-11-02 21:09:27,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:09:27,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:09:27,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:09:27,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:09:27,862 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:09:27,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/unroll-5.wvr.c [2022-11-02 21:09:27,931 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/data/4b10bf383/7a1891d024d547d59bf370b132852a9f/FLAG112967622 [2022-11-02 21:09:28,511 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:09:28,517 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/sv-benchmarks/c/weaver/unroll-5.wvr.c [2022-11-02 21:09:28,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/data/4b10bf383/7a1891d024d547d59bf370b132852a9f/FLAG112967622 [2022-11-02 21:09:28,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/data/4b10bf383/7a1891d024d547d59bf370b132852a9f [2022-11-02 21:09:28,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:09:28,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:09:28,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:09:28,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:09:28,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:09:28,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:28" (1/1) ... [2022-11-02 21:09:28,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1ae37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:28, skipping insertion in model container [2022-11-02 21:09:28,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:09:28" (1/1) ... [2022-11-02 21:09:28,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:09:28,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:09:29,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/sv-benchmarks/c/weaver/unroll-5.wvr.c[2644,2657] [2022-11-02 21:09:29,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:09:29,186 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:09:29,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/sv-benchmarks/c/weaver/unroll-5.wvr.c[2644,2657] [2022-11-02 21:09:29,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:09:29,245 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:09:29,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29 WrapperNode [2022-11-02 21:09:29,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:09:29,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:09:29,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:09:29,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:09:29,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,321 INFO L138 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 345 [2022-11-02 21:09:29,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:09:29,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:09:29,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:09:29,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:09:29,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,369 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:09:29,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:09:29,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:09:29,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:09:29,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (1/1) ... [2022-11-02 21:09:29,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:09:29,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:09:29,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:09:29,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:09:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:09:29,501 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 21:09:29,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 21:09:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 21:09:29,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 21:09:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:09:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:09:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:09:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:09:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:09:29,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:09:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:09:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:09:29,507 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:09:29,663 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:09:29,665 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:09:30,395 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:09:30,408 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:09:30,408 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 21:09:30,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:30 BoogieIcfgContainer [2022-11-02 21:09:30,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:09:30,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:09:30,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:09:30,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:09:30,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:09:28" (1/3) ... [2022-11-02 21:09:30,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfcd57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:30, skipping insertion in model container [2022-11-02 21:09:30,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:09:29" (2/3) ... [2022-11-02 21:09:30,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dfcd57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:09:30, skipping insertion in model container [2022-11-02 21:09:30,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:30" (3/3) ... [2022-11-02 21:09:30,432 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2022-11-02 21:09:30,445 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:09:30,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:09:30,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2022-11-02 21:09:30,453 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:09:30,589 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 21:09:30,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 438 places, 454 transitions, 924 flow [2022-11-02 21:09:30,859 INFO L130 PetriNetUnfolder]: 23/452 cut-off events. [2022-11-02 21:09:30,860 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:09:30,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 452 events. 23/452 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 571 event pairs, 0 based on Foata normal form. 0/374 useless extension candidates. Maximal degree in co-relation 307. Up to 2 conditions per place. [2022-11-02 21:09:30,872 INFO L82 GeneralOperation]: Start removeDead. Operand has 438 places, 454 transitions, 924 flow [2022-11-02 21:09:30,887 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 419 places, 434 transitions, 880 flow [2022-11-02 21:09:30,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:09:30,924 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;@3333f0e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:09:30,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 101 error locations. [2022-11-02 21:09:30,937 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-02 21:09:30,937 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:09:30,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:30,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:30,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:30,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:30,946 INFO L85 PathProgramCache]: Analyzing trace with hash -685848224, now seen corresponding path program 1 times [2022-11-02 21:09:30,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:30,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880868008] [2022-11-02 21:09:30,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:30,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:31,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:31,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:31,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880868008] [2022-11-02 21:09:31,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880868008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:31,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:31,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:31,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255836091] [2022-11-02 21:09:31,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:31,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:31,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:31,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:31,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:31,262 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 454 [2022-11-02 21:09:31,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 434 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:31,273 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 454 [2022-11-02 21:09:31,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:31,785 INFO L130 PetriNetUnfolder]: 54/1458 cut-off events. [2022-11-02 21:09:31,785 INFO L131 PetriNetUnfolder]: For 32/62 co-relation queries the response was YES. [2022-11-02 21:09:31,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1458 events. 54/1458 cut-off events. For 32/62 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6916 event pairs, 15 based on Foata normal form. 33/1198 useless extension candidates. Maximal degree in co-relation 1325. Up to 55 conditions per place. [2022-11-02 21:09:31,801 INFO L137 encePairwiseOnDemand]: 438/454 looper letters, 16 selfloop transitions, 2 changer transitions 4/420 dead transitions. [2022-11-02 21:09:31,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 420 transitions, 888 flow [2022-11-02 21:09:31,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:31,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:31,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1292 transitions. [2022-11-02 21:09:31,834 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9486049926578561 [2022-11-02 21:09:31,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1292 transitions. [2022-11-02 21:09:31,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1292 transitions. [2022-11-02 21:09:31,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:31,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1292 transitions. [2022-11-02 21:09:31,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,870 INFO L175 Difference]: Start difference. First operand has 419 places, 434 transitions, 880 flow. Second operand 3 states and 1292 transitions. [2022-11-02 21:09:31,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 420 transitions, 888 flow [2022-11-02 21:09:31,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 420 transitions, 880 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:09:31,895 INFO L231 Difference]: Finished difference. Result has 416 places, 416 transitions, 840 flow [2022-11-02 21:09:31,898 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=418, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=840, PETRI_PLACES=416, PETRI_TRANSITIONS=416} [2022-11-02 21:09:31,901 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -3 predicate places. [2022-11-02 21:09:31,902 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 416 transitions, 840 flow [2022-11-02 21:09:31,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:31,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:31,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:31,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:09:31,905 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:31,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:31,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1447366186, now seen corresponding path program 1 times [2022-11-02 21:09:31,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:31,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515043522] [2022-11-02 21:09:31,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:31,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:32,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:32,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515043522] [2022-11-02 21:09:32,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515043522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:32,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:32,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:32,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97766021] [2022-11-02 21:09:32,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:32,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:32,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:32,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:32,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:32,027 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 405 out of 454 [2022-11-02 21:09:32,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 416 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:32,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:32,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 405 of 454 [2022-11-02 21:09:32,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:32,532 INFO L130 PetriNetUnfolder]: 147/1775 cut-off events. [2022-11-02 21:09:32,533 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-02 21:09:32,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 1775 events. 147/1775 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 8984 event pairs, 63 based on Foata normal form. 0/1403 useless extension candidates. Maximal degree in co-relation 1961. Up to 206 conditions per place. [2022-11-02 21:09:32,558 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 31 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2022-11-02 21:09:32,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 415 transitions, 904 flow [2022-11-02 21:09:32,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:32,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1249 transitions. [2022-11-02 21:09:32,562 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9170337738619677 [2022-11-02 21:09:32,562 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1249 transitions. [2022-11-02 21:09:32,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1249 transitions. [2022-11-02 21:09:32,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:32,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1249 transitions. [2022-11-02 21:09:32,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:32,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:32,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:32,571 INFO L175 Difference]: Start difference. First operand has 416 places, 416 transitions, 840 flow. Second operand 3 states and 1249 transitions. [2022-11-02 21:09:32,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 415 transitions, 904 flow [2022-11-02 21:09:32,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 415 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:32,580 INFO L231 Difference]: Finished difference. Result has 411 places, 415 transitions, 838 flow [2022-11-02 21:09:32,581 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=838, PETRI_PLACES=411, PETRI_TRANSITIONS=415} [2022-11-02 21:09:32,582 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -8 predicate places. [2022-11-02 21:09:32,582 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 415 transitions, 838 flow [2022-11-02 21:09:32,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:32,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:32,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:32,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:09:32,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:32,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:32,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1908182891, now seen corresponding path program 1 times [2022-11-02 21:09:32,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:32,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632970218] [2022-11-02 21:09:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:32,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:32,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:32,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:32,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632970218] [2022-11-02 21:09:32,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632970218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:32,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:32,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:32,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367108556] [2022-11-02 21:09:32,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:32,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:32,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:32,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:32,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:32,629 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 454 [2022-11-02 21:09:32,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 415 transitions, 838 flow. Second operand has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:32,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:32,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 454 [2022-11-02 21:09:32,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:33,035 INFO L130 PetriNetUnfolder]: 96/1478 cut-off events. [2022-11-02 21:09:33,035 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-02 21:09:33,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 1478 events. 96/1478 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6929 event pairs, 32 based on Foata normal form. 0/1207 useless extension candidates. Maximal degree in co-relation 1567. Up to 117 conditions per place. [2022-11-02 21:09:33,059 INFO L137 encePairwiseOnDemand]: 445/454 looper letters, 21 selfloop transitions, 1 changer transitions 0/407 dead transitions. [2022-11-02 21:09:33,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 407 transitions, 866 flow [2022-11-02 21:09:33,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:33,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1254 transitions. [2022-11-02 21:09:33,063 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.920704845814978 [2022-11-02 21:09:33,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1254 transitions. [2022-11-02 21:09:33,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1254 transitions. [2022-11-02 21:09:33,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:33,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1254 transitions. [2022-11-02 21:09:33,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,073 INFO L175 Difference]: Start difference. First operand has 411 places, 415 transitions, 838 flow. Second operand 3 states and 1254 transitions. [2022-11-02 21:09:33,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 407 transitions, 866 flow [2022-11-02 21:09:33,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 407 transitions, 862 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:33,082 INFO L231 Difference]: Finished difference. Result has 403 places, 407 transitions, 820 flow [2022-11-02 21:09:33,082 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=403, PETRI_TRANSITIONS=407} [2022-11-02 21:09:33,085 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -16 predicate places. [2022-11-02 21:09:33,085 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 407 transitions, 820 flow [2022-11-02 21:09:33,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:33,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:33,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:09:33,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:33,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:33,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1971107898, now seen corresponding path program 1 times [2022-11-02 21:09:33,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:33,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119438334] [2022-11-02 21:09:33,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:33,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:33,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:33,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:33,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119438334] [2022-11-02 21:09:33,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119438334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:33,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:33,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:33,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940120746] [2022-11-02 21:09:33,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:33,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:33,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:33,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:33,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:33,235 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 454 [2022-11-02 21:09:33,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 407 transitions, 820 flow. Second operand has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:33,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 454 [2022-11-02 21:09:33,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:33,580 INFO L130 PetriNetUnfolder]: 131/1508 cut-off events. [2022-11-02 21:09:33,580 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-02 21:09:33,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1706 conditions, 1508 events. 131/1508 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7195 event pairs, 63 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 1668. Up to 188 conditions per place. [2022-11-02 21:09:33,604 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 25 selfloop transitions, 2 changer transitions 0/406 dead transitions. [2022-11-02 21:09:33,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 406 transitions, 872 flow [2022-11-02 21:09:33,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:33,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:33,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1261 transitions. [2022-11-02 21:09:33,608 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9258443465491923 [2022-11-02 21:09:33,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1261 transitions. [2022-11-02 21:09:33,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1261 transitions. [2022-11-02 21:09:33,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:33,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1261 transitions. [2022-11-02 21:09:33,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 420.3333333333333) internal successors, (1261), 3 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,622 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,622 INFO L175 Difference]: Start difference. First operand has 403 places, 407 transitions, 820 flow. Second operand 3 states and 1261 transitions. [2022-11-02 21:09:33,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 406 transitions, 872 flow [2022-11-02 21:09:33,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 406 transitions, 871 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:09:33,631 INFO L231 Difference]: Finished difference. Result has 403 places, 406 transitions, 821 flow [2022-11-02 21:09:33,632 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=403, PETRI_TRANSITIONS=406} [2022-11-02 21:09:33,634 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -16 predicate places. [2022-11-02 21:09:33,639 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 406 transitions, 821 flow [2022-11-02 21:09:33,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.3333333333333) internal successors, (1237), 3 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:33,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:33,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:33,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:09:33,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:33,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:33,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2146104986, now seen corresponding path program 1 times [2022-11-02 21:09:33,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:33,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778252881] [2022-11-02 21:09:33,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:33,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:34,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:34,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778252881] [2022-11-02 21:09:34,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778252881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:34,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:34,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:34,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440270331] [2022-11-02 21:09:34,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:34,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:09:34,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:34,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:09:34,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:09:34,317 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-02 21:09:34,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 406 transitions, 821 flow. Second operand has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:34,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:34,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-02 21:09:34,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:38,106 INFO L130 PetriNetUnfolder]: 3374/16354 cut-off events. [2022-11-02 21:09:38,106 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2022-11-02 21:09:38,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21203 conditions, 16354 events. 3374/16354 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 164401 event pairs, 2772 based on Foata normal form. 0/13297 useless extension candidates. Maximal degree in co-relation 21166. Up to 4831 conditions per place. [2022-11-02 21:09:38,283 INFO L137 encePairwiseOnDemand]: 448/454 looper letters, 63 selfloop transitions, 5 changer transitions 0/405 dead transitions. [2022-11-02 21:09:38,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 405 transitions, 955 flow [2022-11-02 21:09:38,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:09:38,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:09:38,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2289 transitions. [2022-11-02 21:09:38,290 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8403083700440529 [2022-11-02 21:09:38,291 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2289 transitions. [2022-11-02 21:09:38,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2289 transitions. [2022-11-02 21:09:38,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:38,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2289 transitions. [2022-11-02 21:09:38,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 381.5) internal successors, (2289), 6 states have internal predecessors, (2289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,308 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,309 INFO L175 Difference]: Start difference. First operand has 403 places, 406 transitions, 821 flow. Second operand 6 states and 2289 transitions. [2022-11-02 21:09:38,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 405 transitions, 955 flow [2022-11-02 21:09:38,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 405 transitions, 951 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:38,319 INFO L231 Difference]: Finished difference. Result has 405 places, 405 transitions, 825 flow [2022-11-02 21:09:38,320 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=825, PETRI_PLACES=405, PETRI_TRANSITIONS=405} [2022-11-02 21:09:38,321 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -14 predicate places. [2022-11-02 21:09:38,321 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 405 transitions, 825 flow [2022-11-02 21:09:38,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.8333333333333) internal successors, (2231), 6 states have internal predecessors, (2231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:38,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:38,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:09:38,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:38,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:38,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2103126755, now seen corresponding path program 1 times [2022-11-02 21:09:38,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:38,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001851949] [2022-11-02 21:09:38,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:38,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:38,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:38,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:38,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001851949] [2022-11-02 21:09:38,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001851949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:38,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:38,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:38,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569969429] [2022-11-02 21:09:38,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:38,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:38,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:38,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:38,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:38,381 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 454 [2022-11-02 21:09:38,383 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 405 transitions, 825 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,383 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:38,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 454 [2022-11-02 21:09:38,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:38,603 INFO L130 PetriNetUnfolder]: 40/1183 cut-off events. [2022-11-02 21:09:38,603 INFO L131 PetriNetUnfolder]: For 4/20 co-relation queries the response was YES. [2022-11-02 21:09:38,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1230 conditions, 1183 events. 40/1183 cut-off events. For 4/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4912 event pairs, 8 based on Foata normal form. 0/982 useless extension candidates. Maximal degree in co-relation 1212. Up to 32 conditions per place. [2022-11-02 21:09:38,616 INFO L137 encePairwiseOnDemand]: 450/454 looper letters, 11 selfloop transitions, 1 changer transitions 0/402 dead transitions. [2022-11-02 21:09:38,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 402 transitions, 843 flow [2022-11-02 21:09:38,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:38,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1284 transitions. [2022-11-02 21:09:38,620 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9427312775330396 [2022-11-02 21:09:38,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1284 transitions. [2022-11-02 21:09:38,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1284 transitions. [2022-11-02 21:09:38,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:38,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1284 transitions. [2022-11-02 21:09:38,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.0) internal successors, (1284), 3 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,630 INFO L175 Difference]: Start difference. First operand has 405 places, 405 transitions, 825 flow. Second operand 3 states and 1284 transitions. [2022-11-02 21:09:38,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 402 transitions, 843 flow [2022-11-02 21:09:38,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 402 transitions, 833 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:09:38,639 INFO L231 Difference]: Finished difference. Result has 399 places, 402 transitions, 811 flow [2022-11-02 21:09:38,640 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=399, PETRI_TRANSITIONS=402} [2022-11-02 21:09:38,641 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -20 predicate places. [2022-11-02 21:09:38,641 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 402 transitions, 811 flow [2022-11-02 21:09:38,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:38,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:38,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:09:38,643 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:38,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:38,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1284823680, now seen corresponding path program 1 times [2022-11-02 21:09:38,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:38,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352371084] [2022-11-02 21:09:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:38,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:38,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:38,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:38,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352371084] [2022-11-02 21:09:38,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352371084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:38,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:38,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:38,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263473301] [2022-11-02 21:09:38,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:38,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:38,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:38,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:38,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:38,717 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 454 [2022-11-02 21:09:38,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 402 transitions, 811 flow. Second operand has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:38,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:38,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 454 [2022-11-02 21:09:38,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:39,020 INFO L130 PetriNetUnfolder]: 45/1377 cut-off events. [2022-11-02 21:09:39,021 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:09:39,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 1377 events. 45/1377 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 6268 event pairs, 5 based on Foata normal form. 0/1153 useless extension candidates. Maximal degree in co-relation 1392. Up to 22 conditions per place. [2022-11-02 21:09:39,037 INFO L137 encePairwiseOnDemand]: 447/454 looper letters, 13 selfloop transitions, 3 changer transitions 0/399 dead transitions. [2022-11-02 21:09:39,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 399 transitions, 838 flow [2022-11-02 21:09:39,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:39,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1280 transitions. [2022-11-02 21:09:39,042 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9397944199706314 [2022-11-02 21:09:39,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1280 transitions. [2022-11-02 21:09:39,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1280 transitions. [2022-11-02 21:09:39,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:39,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1280 transitions. [2022-11-02 21:09:39,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.6666666666667) internal successors, (1280), 3 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,051 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,052 INFO L175 Difference]: Start difference. First operand has 399 places, 402 transitions, 811 flow. Second operand 3 states and 1280 transitions. [2022-11-02 21:09:39,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 399 transitions, 838 flow [2022-11-02 21:09:39,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 399 transitions, 837 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:09:39,062 INFO L231 Difference]: Finished difference. Result has 396 places, 398 transitions, 808 flow [2022-11-02 21:09:39,063 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=808, PETRI_PLACES=396, PETRI_TRANSITIONS=398} [2022-11-02 21:09:39,064 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -23 predicate places. [2022-11-02 21:09:39,064 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 398 transitions, 808 flow [2022-11-02 21:09:39,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.0) internal successors, (1263), 3 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,065 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:39,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:39,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:09:39,066 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:39,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:39,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1740622680, now seen corresponding path program 1 times [2022-11-02 21:09:39,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:39,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107091742] [2022-11-02 21:09:39,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:39,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:39,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:39,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:39,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107091742] [2022-11-02 21:09:39,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107091742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:39,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:39,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:39,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099415513] [2022-11-02 21:09:39,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:39,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:39,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:39,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:39,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:39,152 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 372 out of 454 [2022-11-02 21:09:39,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 398 transitions, 808 flow. Second operand has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:39,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 372 of 454 [2022-11-02 21:09:39,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:39,335 INFO L130 PetriNetUnfolder]: 61/643 cut-off events. [2022-11-02 21:09:39,335 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-02 21:09:39,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 643 events. 61/643 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2447 event pairs, 29 based on Foata normal form. 1/581 useless extension candidates. Maximal degree in co-relation 758. Up to 92 conditions per place. [2022-11-02 21:09:39,342 INFO L137 encePairwiseOnDemand]: 427/454 looper letters, 39 selfloop transitions, 10 changer transitions 5/383 dead transitions. [2022-11-02 21:09:39,342 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 383 transitions, 881 flow [2022-11-02 21:09:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:39,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:39,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1183 transitions. [2022-11-02 21:09:39,345 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.868575624082232 [2022-11-02 21:09:39,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1183 transitions. [2022-11-02 21:09:39,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1183 transitions. [2022-11-02 21:09:39,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:39,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1183 transitions. [2022-11-02 21:09:39,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 394.3333333333333) internal successors, (1183), 3 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,353 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,353 INFO L175 Difference]: Start difference. First operand has 396 places, 398 transitions, 808 flow. Second operand 3 states and 1183 transitions. [2022-11-02 21:09:39,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 383 transitions, 881 flow [2022-11-02 21:09:39,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 383 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:39,361 INFO L231 Difference]: Finished difference. Result has 380 places, 377 transitions, 779 flow [2022-11-02 21:09:39,362 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=378, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=382, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=779, PETRI_PLACES=380, PETRI_TRANSITIONS=377} [2022-11-02 21:09:39,363 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -39 predicate places. [2022-11-02 21:09:39,363 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 377 transitions, 779 flow [2022-11-02 21:09:39,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.3333333333333) internal successors, (1120), 3 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:39,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:39,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:09:39,365 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:39,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:39,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1949337363, now seen corresponding path program 1 times [2022-11-02 21:09:39,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:39,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591907567] [2022-11-02 21:09:39,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:39,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:39,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:39,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:39,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591907567] [2022-11-02 21:09:39,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591907567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:39,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:39,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:39,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136072829] [2022-11-02 21:09:39,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:39,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:09:39,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:39,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:09:39,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:09:39,710 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 454 [2022-11-02 21:09:39,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 377 transitions, 779 flow. Second operand has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:39,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:39,713 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 454 [2022-11-02 21:09:39,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:42,080 INFO L130 PetriNetUnfolder]: 3193/9085 cut-off events. [2022-11-02 21:09:42,081 INFO L131 PetriNetUnfolder]: For 7/65 co-relation queries the response was YES. [2022-11-02 21:09:42,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14133 conditions, 9085 events. 3193/9085 cut-off events. For 7/65 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 70716 event pairs, 762 based on Foata normal form. 15/7960 useless extension candidates. Maximal degree in co-relation 14094. Up to 1767 conditions per place. [2022-11-02 21:09:42,167 INFO L137 encePairwiseOnDemand]: 449/454 looper letters, 199 selfloop transitions, 4 changer transitions 0/520 dead transitions. [2022-11-02 21:09:42,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 520 transitions, 1471 flow [2022-11-02 21:09:42,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:09:42,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:09:42,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2454 transitions. [2022-11-02 21:09:42,300 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9008810572687225 [2022-11-02 21:09:42,300 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2454 transitions. [2022-11-02 21:09:42,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2454 transitions. [2022-11-02 21:09:42,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:42,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2454 transitions. [2022-11-02 21:09:42,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 409.0) internal successors, (2454), 6 states have internal predecessors, (2454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,324 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,324 INFO L175 Difference]: Start difference. First operand has 380 places, 377 transitions, 779 flow. Second operand 6 states and 2454 transitions. [2022-11-02 21:09:42,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 520 transitions, 1471 flow [2022-11-02 21:09:42,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 520 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:09:42,335 INFO L231 Difference]: Finished difference. Result has 377 places, 376 transitions, 765 flow [2022-11-02 21:09:42,335 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=765, PETRI_PLACES=377, PETRI_TRANSITIONS=376} [2022-11-02 21:09:42,336 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -42 predicate places. [2022-11-02 21:09:42,336 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 376 transitions, 765 flow [2022-11-02 21:09:42,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 376.8333333333333) internal successors, (2261), 6 states have internal predecessors, (2261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,338 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:42,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:42,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:09:42,338 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:42,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:42,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1775938818, now seen corresponding path program 1 times [2022-11-02 21:09:42,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:42,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92944403] [2022-11-02 21:09:42,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:42,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:42,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:42,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92944403] [2022-11-02 21:09:42,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92944403] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:42,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:42,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:42,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468632284] [2022-11-02 21:09:42,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:42,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:42,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:42,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:42,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:42,388 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 414 out of 454 [2022-11-02 21:09:42,389 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 376 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 415.6666666666667) internal successors, (1247), 3 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:42,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 414 of 454 [2022-11-02 21:09:42,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:42,603 INFO L130 PetriNetUnfolder]: 85/1177 cut-off events. [2022-11-02 21:09:42,603 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-02 21:09:42,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1299 conditions, 1177 events. 85/1177 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 4864 event pairs, 10 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 1262. Up to 104 conditions per place. [2022-11-02 21:09:42,615 INFO L137 encePairwiseOnDemand]: 446/454 looper letters, 19 selfloop transitions, 2 changer transitions 0/374 dead transitions. [2022-11-02 21:09:42,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 374 transitions, 805 flow [2022-11-02 21:09:42,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:42,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:42,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-11-02 21:09:42,618 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9317180616740088 [2022-11-02 21:09:42,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-11-02 21:09:42,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-11-02 21:09:42,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:42,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-11-02 21:09:42,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,626 INFO L175 Difference]: Start difference. First operand has 377 places, 376 transitions, 765 flow. Second operand 3 states and 1269 transitions. [2022-11-02 21:09:42,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 374 transitions, 805 flow [2022-11-02 21:09:42,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 374 transitions, 798 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:09:42,634 INFO L231 Difference]: Finished difference. Result has 370 places, 372 transitions, 760 flow [2022-11-02 21:09:42,635 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=760, PETRI_PLACES=370, PETRI_TRANSITIONS=372} [2022-11-02 21:09:42,635 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -49 predicate places. [2022-11-02 21:09:42,636 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 372 transitions, 760 flow [2022-11-02 21:09:42,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 415.6666666666667) internal successors, (1247), 3 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:42,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:42,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:09:42,637 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:42,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:42,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1170695588, now seen corresponding path program 1 times [2022-11-02 21:09:42,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:42,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521467303] [2022-11-02 21:09:42,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:42,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:42,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:42,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521467303] [2022-11-02 21:09:42,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521467303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:42,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:42,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:09:42,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214200289] [2022-11-02 21:09:42,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:42,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:09:42,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:42,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:09:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:09:42,858 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 419 out of 454 [2022-11-02 21:09:42,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 372 transitions, 760 flow. Second operand has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:42,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:42,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 419 of 454 [2022-11-02 21:09:42,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:43,303 INFO L130 PetriNetUnfolder]: 78/1847 cut-off events. [2022-11-02 21:09:43,303 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-11-02 21:09:43,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1991 conditions, 1847 events. 78/1847 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 9157 event pairs, 11 based on Foata normal form. 1/1671 useless extension candidates. Maximal degree in co-relation 1953. Up to 42 conditions per place. [2022-11-02 21:09:43,323 INFO L137 encePairwiseOnDemand]: 448/454 looper letters, 29 selfloop transitions, 6 changer transitions 0/389 dead transitions. [2022-11-02 21:09:43,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 389 transitions, 868 flow [2022-11-02 21:09:43,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:09:43,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 21:09:43,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2131 transitions. [2022-11-02 21:09:43,330 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9387665198237886 [2022-11-02 21:09:43,330 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2131 transitions. [2022-11-02 21:09:43,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2131 transitions. [2022-11-02 21:09:43,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:43,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2131 transitions. [2022-11-02 21:09:43,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 426.2) internal successors, (2131), 5 states have internal predecessors, (2131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,344 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,344 INFO L175 Difference]: Start difference. First operand has 370 places, 372 transitions, 760 flow. Second operand 5 states and 2131 transitions. [2022-11-02 21:09:43,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 389 transitions, 868 flow [2022-11-02 21:09:43,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 389 transitions, 868 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:09:43,354 INFO L231 Difference]: Finished difference. Result has 377 places, 376 transitions, 798 flow [2022-11-02 21:09:43,355 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=798, PETRI_PLACES=377, PETRI_TRANSITIONS=376} [2022-11-02 21:09:43,356 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -42 predicate places. [2022-11-02 21:09:43,356 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 376 transitions, 798 flow [2022-11-02 21:09:43,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 422.0) internal successors, (1688), 4 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:43,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:43,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:09:43,358 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:43,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:43,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1919829365, now seen corresponding path program 1 times [2022-11-02 21:09:43,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:43,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247998457] [2022-11-02 21:09:43,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:43,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:43,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:43,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247998457] [2022-11-02 21:09:43,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247998457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:43,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:43,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:43,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533604942] [2022-11-02 21:09:43,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:43,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:09:43,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:43,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:09:43,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:09:43,923 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 454 [2022-11-02 21:09:43,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 376 transitions, 798 flow. Second operand has 6 states, 6 states have (on average 377.8333333333333) internal successors, (2267), 6 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:43,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:43,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 454 [2022-11-02 21:09:43,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:49,046 INFO L130 PetriNetUnfolder]: 5406/24920 cut-off events. [2022-11-02 21:09:49,046 INFO L131 PetriNetUnfolder]: For 115/115 co-relation queries the response was YES. [2022-11-02 21:09:49,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33673 conditions, 24920 events. 5406/24920 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 265763 event pairs, 4476 based on Foata normal form. 0/22363 useless extension candidates. Maximal degree in co-relation 33629. Up to 7311 conditions per place. [2022-11-02 21:09:49,219 INFO L137 encePairwiseOnDemand]: 449/454 looper letters, 174 selfloop transitions, 4 changer transitions 0/495 dead transitions. [2022-11-02 21:09:49,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 495 transitions, 1392 flow [2022-11-02 21:09:49,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:09:49,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:09:49,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2429 transitions. [2022-11-02 21:09:49,226 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8917033773861968 [2022-11-02 21:09:49,227 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2429 transitions. [2022-11-02 21:09:49,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2429 transitions. [2022-11-02 21:09:49,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:49,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2429 transitions. [2022-11-02 21:09:49,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 404.8333333333333) internal successors, (2429), 6 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:49,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:49,242 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:49,242 INFO L175 Difference]: Start difference. First operand has 377 places, 376 transitions, 798 flow. Second operand 6 states and 2429 transitions. [2022-11-02 21:09:49,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 495 transitions, 1392 flow [2022-11-02 21:09:49,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 495 transitions, 1392 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:09:49,256 INFO L231 Difference]: Finished difference. Result has 381 places, 375 transitions, 804 flow [2022-11-02 21:09:49,257 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=381, PETRI_TRANSITIONS=375} [2022-11-02 21:09:49,259 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -38 predicate places. [2022-11-02 21:09:49,259 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 375 transitions, 804 flow [2022-11-02 21:09:49,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 377.8333333333333) internal successors, (2267), 6 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:49,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:49,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:49,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:09:49,262 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:49,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:49,262 INFO L85 PathProgramCache]: Analyzing trace with hash 477295308, now seen corresponding path program 1 times [2022-11-02 21:09:49,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:49,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808668789] [2022-11-02 21:09:49,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:49,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:49,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:49,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808668789] [2022-11-02 21:09:49,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808668789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:49,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:49,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:49,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817884967] [2022-11-02 21:09:49,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:49,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:09:49,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:49,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:09:49,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:09:49,861 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 454 [2022-11-02 21:09:49,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 375 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 370.0) internal successors, (2220), 6 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:49,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:49,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 454 [2022-11-02 21:09:49,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:54,672 INFO L130 PetriNetUnfolder]: 8325/24257 cut-off events. [2022-11-02 21:09:54,672 INFO L131 PetriNetUnfolder]: For 2734/2734 co-relation queries the response was YES. [2022-11-02 21:09:54,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39877 conditions, 24257 events. 8325/24257 cut-off events. For 2734/2734 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 229686 event pairs, 3496 based on Foata normal form. 0/22228 useless extension candidates. Maximal degree in co-relation 39832. Up to 6359 conditions per place. [2022-11-02 21:09:54,866 INFO L137 encePairwiseOnDemand]: 448/454 looper letters, 226 selfloop transitions, 6 changer transitions 0/538 dead transitions. [2022-11-02 21:09:54,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 538 transitions, 1602 flow [2022-11-02 21:09:54,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:09:54,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:09:54,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2438 transitions. [2022-11-02 21:09:54,881 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.895007342143906 [2022-11-02 21:09:54,882 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2438 transitions. [2022-11-02 21:09:54,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2438 transitions. [2022-11-02 21:09:54,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:54,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2438 transitions. [2022-11-02 21:09:54,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 406.3333333333333) internal successors, (2438), 6 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:54,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:54,909 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:54,910 INFO L175 Difference]: Start difference. First operand has 381 places, 375 transitions, 804 flow. Second operand 6 states and 2438 transitions. [2022-11-02 21:09:54,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 538 transitions, 1602 flow [2022-11-02 21:09:54,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 381 places, 538 transitions, 1595 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 21:09:54,922 INFO L231 Difference]: Finished difference. Result has 381 places, 374 transitions, 807 flow [2022-11-02 21:09:54,923 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=807, PETRI_PLACES=381, PETRI_TRANSITIONS=374} [2022-11-02 21:09:54,924 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -38 predicate places. [2022-11-02 21:09:54,924 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 374 transitions, 807 flow [2022-11-02 21:09:54,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.0) internal successors, (2220), 6 states have internal predecessors, (2220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:54,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:54,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:54,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:09:54,926 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:54,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:54,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1087598914, now seen corresponding path program 1 times [2022-11-02 21:09:54,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:54,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742854847] [2022-11-02 21:09:54,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:54,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:55,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:55,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:55,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742854847] [2022-11-02 21:09:55,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742854847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:55,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:55,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:09:55,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323615126] [2022-11-02 21:09:55,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:55,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:09:55,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:55,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:09:55,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:09:55,048 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 454 [2022-11-02 21:09:55,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 374 transitions, 807 flow. Second operand has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:55,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:55,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 454 [2022-11-02 21:09:55,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:55,715 INFO L130 PetriNetUnfolder]: 159/1453 cut-off events. [2022-11-02 21:09:55,715 INFO L131 PetriNetUnfolder]: For 132/133 co-relation queries the response was YES. [2022-11-02 21:09:55,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1963 conditions, 1453 events. 159/1453 cut-off events. For 132/133 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9348 event pairs, 22 based on Foata normal form. 0/1328 useless extension candidates. Maximal degree in co-relation 1919. Up to 367 conditions per place. [2022-11-02 21:09:55,724 INFO L137 encePairwiseOnDemand]: 448/454 looper letters, 68 selfloop transitions, 6 changer transitions 0/390 dead transitions. [2022-11-02 21:09:55,724 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 390 transitions, 990 flow [2022-11-02 21:09:55,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:09:55,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 21:09:55,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1970 transitions. [2022-11-02 21:09:55,729 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8678414096916299 [2022-11-02 21:09:55,730 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1970 transitions. [2022-11-02 21:09:55,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1970 transitions. [2022-11-02 21:09:55,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:55,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1970 transitions. [2022-11-02 21:09:55,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 394.0) internal successors, (1970), 5 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:55,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:55,742 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 454.0) internal successors, (2724), 6 states have internal predecessors, (2724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:55,742 INFO L175 Difference]: Start difference. First operand has 381 places, 374 transitions, 807 flow. Second operand 5 states and 1970 transitions. [2022-11-02 21:09:55,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 390 transitions, 990 flow [2022-11-02 21:09:55,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 390 transitions, 978 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:09:55,750 INFO L231 Difference]: Finished difference. Result has 383 places, 378 transitions, 833 flow [2022-11-02 21:09:55,751 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=833, PETRI_PLACES=383, PETRI_TRANSITIONS=378} [2022-11-02 21:09:55,752 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -36 predicate places. [2022-11-02 21:09:55,752 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 378 transitions, 833 flow [2022-11-02 21:09:55,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 382.25) internal successors, (1529), 4 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:55,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:55,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:55,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:09:55,753 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:55,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:55,754 INFO L85 PathProgramCache]: Analyzing trace with hash -220324401, now seen corresponding path program 1 times [2022-11-02 21:09:55,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:55,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177787211] [2022-11-02 21:09:55,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:55,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:55,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:55,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177787211] [2022-11-02 21:09:55,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177787211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:55,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:55,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:09:55,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374614738] [2022-11-02 21:09:55,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:55,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:09:55,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:55,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:09:55,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:09:55,803 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 454 [2022-11-02 21:09:55,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 378 transitions, 833 flow. Second operand has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:55,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:55,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 454 [2022-11-02 21:09:55,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:09:56,003 INFO L130 PetriNetUnfolder]: 43/961 cut-off events. [2022-11-02 21:09:56,003 INFO L131 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2022-11-02 21:09:56,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 961 events. 43/961 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2754 event pairs, 16 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 1074. Up to 47 conditions per place. [2022-11-02 21:09:56,016 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 12 selfloop transitions, 2 changer transitions 0/378 dead transitions. [2022-11-02 21:09:56,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 378 transitions, 862 flow [2022-11-02 21:09:56,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:09:56,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:09:56,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2022-11-02 21:09:56,020 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9317180616740088 [2022-11-02 21:09:56,020 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2022-11-02 21:09:56,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2022-11-02 21:09:56,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:09:56,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2022-11-02 21:09:56,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:56,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:56,028 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:56,029 INFO L175 Difference]: Start difference. First operand has 383 places, 378 transitions, 833 flow. Second operand 3 states and 1269 transitions. [2022-11-02 21:09:56,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 378 transitions, 862 flow [2022-11-02 21:09:56,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 378 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:09:56,037 INFO L231 Difference]: Finished difference. Result has 384 places, 377 transitions, 835 flow [2022-11-02 21:09:56,039 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=384, PETRI_TRANSITIONS=377} [2022-11-02 21:09:56,039 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -35 predicate places. [2022-11-02 21:09:56,040 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 377 transitions, 835 flow [2022-11-02 21:09:56,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:56,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:09:56,041 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:09:56,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:09:56,041 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:09:56,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:09:56,042 INFO L85 PathProgramCache]: Analyzing trace with hash -18494300, now seen corresponding path program 1 times [2022-11-02 21:09:56,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:09:56,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143816924] [2022-11-02 21:09:56,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:09:56,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:09:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:09:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:09:56,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:09:56,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143816924] [2022-11-02 21:09:56,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143816924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:09:56,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:09:56,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:09:56,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300816373] [2022-11-02 21:09:56,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:09:56,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:09:56,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:09:56,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:09:56,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:09:56,557 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 356 out of 454 [2022-11-02 21:09:56,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 377 transitions, 835 flow. Second operand has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:09:56,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:09:56,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 356 of 454 [2022-11-02 21:09:56,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:02,163 INFO L130 PetriNetUnfolder]: 8112/28463 cut-off events. [2022-11-02 21:10:02,163 INFO L131 PetriNetUnfolder]: For 1170/1170 co-relation queries the response was YES. [2022-11-02 21:10:02,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43566 conditions, 28463 events. 8112/28463 cut-off events. For 1170/1170 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 288101 event pairs, 2858 based on Foata normal form. 0/26805 useless extension candidates. Maximal degree in co-relation 43516. Up to 5250 conditions per place. [2022-11-02 21:10:02,334 INFO L137 encePairwiseOnDemand]: 424/454 looper letters, 117 selfloop transitions, 26 changer transitions 0/440 dead transitions. [2022-11-02 21:10:02,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 384 places, 440 transitions, 1259 flow [2022-11-02 21:10:02,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:02,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2281 transitions. [2022-11-02 21:10:02,340 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8373715124816447 [2022-11-02 21:10:02,340 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2281 transitions. [2022-11-02 21:10:02,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2281 transitions. [2022-11-02 21:10:02,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:02,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2281 transitions. [2022-11-02 21:10:02,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 380.1666666666667) internal successors, (2281), 6 states have internal predecessors, (2281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,353 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 454.0) internal successors, (3178), 7 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,354 INFO L175 Difference]: Start difference. First operand has 384 places, 377 transitions, 835 flow. Second operand 6 states and 2281 transitions. [2022-11-02 21:10:02,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 384 places, 440 transitions, 1259 flow [2022-11-02 21:10:02,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 440 transitions, 1255 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:10:02,365 INFO L231 Difference]: Finished difference. Result has 382 places, 372 transitions, 873 flow [2022-11-02 21:10:02,366 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=821, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=873, PETRI_PLACES=382, PETRI_TRANSITIONS=372} [2022-11-02 21:10:02,367 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -37 predicate places. [2022-11-02 21:10:02,367 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 372 transitions, 873 flow [2022-11-02 21:10:02,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 358.1666666666667) internal successors, (2149), 6 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:02,368 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:02,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:10:02,369 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:10:02,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:02,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1245292839, now seen corresponding path program 1 times [2022-11-02 21:10:02,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:02,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546102670] [2022-11-02 21:10:02,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:02,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:02,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:02,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:02,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546102670] [2022-11-02 21:10:02,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546102670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:02,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:02,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:10:02,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588997829] [2022-11-02 21:10:02,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:02,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:10:02,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:02,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:10:02,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:10:02,431 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-02 21:10:02,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 372 transitions, 873 flow. Second operand has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:02,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-02 21:10:02,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:02,771 INFO L130 PetriNetUnfolder]: 141/1403 cut-off events. [2022-11-02 21:10:02,772 INFO L131 PetriNetUnfolder]: For 143/144 co-relation queries the response was YES. [2022-11-02 21:10:02,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2021 conditions, 1403 events. 141/1403 cut-off events. For 143/144 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8831 event pairs, 102 based on Foata normal form. 0/1317 useless extension candidates. Maximal degree in co-relation 1973. Up to 347 conditions per place. [2022-11-02 21:10:02,786 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 48 selfloop transitions, 2 changer transitions 0/372 dead transitions. [2022-11-02 21:10:02,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 372 transitions, 974 flow [2022-11-02 21:10:02,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:10:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:10:02,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1161 transitions. [2022-11-02 21:10:02,789 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8524229074889867 [2022-11-02 21:10:02,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1161 transitions. [2022-11-02 21:10:02,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1161 transitions. [2022-11-02 21:10:02,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:02,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1161 transitions. [2022-11-02 21:10:02,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.0) internal successors, (1161), 3 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,797 INFO L175 Difference]: Start difference. First operand has 382 places, 372 transitions, 873 flow. Second operand 3 states and 1161 transitions. [2022-11-02 21:10:02,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 372 transitions, 974 flow [2022-11-02 21:10:02,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 378 places, 372 transitions, 922 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 21:10:02,806 INFO L231 Difference]: Finished difference. Result has 378 places, 371 transitions, 823 flow [2022-11-02 21:10:02,806 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=823, PETRI_PLACES=378, PETRI_TRANSITIONS=371} [2022-11-02 21:10:02,807 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -41 predicate places. [2022-11-02 21:10:02,807 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 371 transitions, 823 flow [2022-11-02 21:10:02,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 373.6666666666667) internal successors, (1121), 3 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:02,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:02,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:10:02,809 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:10:02,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:02,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1608529474, now seen corresponding path program 1 times [2022-11-02 21:10:02,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:02,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322453976] [2022-11-02 21:10:02,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:02,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:02,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:02,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322453976] [2022-11-02 21:10:02,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322453976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:02,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:02,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:10:02,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779335337] [2022-11-02 21:10:02,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:02,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:10:02,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:02,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:10:02,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:10:02,871 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-02 21:10:02,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 371 transitions, 823 flow. Second operand has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:02,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:02,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-02 21:10:02,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:03,297 INFO L130 PetriNetUnfolder]: 139/1396 cut-off events. [2022-11-02 21:10:03,297 INFO L131 PetriNetUnfolder]: For 131/132 co-relation queries the response was YES. [2022-11-02 21:10:03,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 1396 events. 139/1396 cut-off events. For 131/132 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8632 event pairs, 100 based on Foata normal form. 0/1315 useless extension candidates. Maximal degree in co-relation 1819. Up to 340 conditions per place. [2022-11-02 21:10:03,311 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 47 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2022-11-02 21:10:03,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 371 transitions, 922 flow [2022-11-02 21:10:03,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:10:03,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:10:03,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1160 transitions. [2022-11-02 21:10:03,314 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8516886930983847 [2022-11-02 21:10:03,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1160 transitions. [2022-11-02 21:10:03,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1160 transitions. [2022-11-02 21:10:03,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:03,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1160 transitions. [2022-11-02 21:10:03,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,322 INFO L175 Difference]: Start difference. First operand has 378 places, 371 transitions, 823 flow. Second operand 3 states and 1160 transitions. [2022-11-02 21:10:03,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 371 transitions, 922 flow [2022-11-02 21:10:03,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 371 transitions, 918 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:10:03,329 INFO L231 Difference]: Finished difference. Result has 377 places, 370 transitions, 821 flow [2022-11-02 21:10:03,330 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=821, PETRI_PLACES=377, PETRI_TRANSITIONS=370} [2022-11-02 21:10:03,331 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -42 predicate places. [2022-11-02 21:10:03,331 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 370 transitions, 821 flow [2022-11-02 21:10:03,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 375.6666666666667) internal successors, (1127), 3 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:03,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:03,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 21:10:03,332 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:10:03,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:03,333 INFO L85 PathProgramCache]: Analyzing trace with hash 758723701, now seen corresponding path program 1 times [2022-11-02 21:10:03,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:03,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191006571] [2022-11-02 21:10:03,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:03,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:03,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:03,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191006571] [2022-11-02 21:10:03,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191006571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:03,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:03,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:10:03,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478979209] [2022-11-02 21:10:03,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:03,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:10:03,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:03,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:10:03,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:10:03,407 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-02 21:10:03,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 370 transitions, 821 flow. Second operand has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:03,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-02 21:10:03,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:03,744 INFO L130 PetriNetUnfolder]: 137/1389 cut-off events. [2022-11-02 21:10:03,744 INFO L131 PetriNetUnfolder]: For 129/130 co-relation queries the response was YES. [2022-11-02 21:10:03,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1853 conditions, 1389 events. 137/1389 cut-off events. For 129/130 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8594 event pairs, 98 based on Foata normal form. 0/1313 useless extension candidates. Maximal degree in co-relation 1805. Up to 333 conditions per place. [2022-11-02 21:10:03,759 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 46 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2022-11-02 21:10:03,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 370 transitions, 918 flow [2022-11-02 21:10:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:10:03,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:10:03,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1159 transitions. [2022-11-02 21:10:03,763 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8509544787077826 [2022-11-02 21:10:03,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1159 transitions. [2022-11-02 21:10:03,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1159 transitions. [2022-11-02 21:10:03,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:03,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1159 transitions. [2022-11-02 21:10:03,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.3333333333333) internal successors, (1159), 3 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,774 INFO L175 Difference]: Start difference. First operand has 377 places, 370 transitions, 821 flow. Second operand 3 states and 1159 transitions. [2022-11-02 21:10:03,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 370 transitions, 918 flow [2022-11-02 21:10:03,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 370 transitions, 914 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:10:03,782 INFO L231 Difference]: Finished difference. Result has 376 places, 369 transitions, 819 flow [2022-11-02 21:10:03,782 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=819, PETRI_PLACES=376, PETRI_TRANSITIONS=369} [2022-11-02 21:10:03,783 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -43 predicate places. [2022-11-02 21:10:03,783 INFO L495 AbstractCegarLoop]: Abstraction has has 376 places, 369 transitions, 819 flow [2022-11-02 21:10:03,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:03,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:03,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 21:10:03,784 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:10:03,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:03,785 INFO L85 PathProgramCache]: Analyzing trace with hash 2101440844, now seen corresponding path program 1 times [2022-11-02 21:10:03,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:03,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592036994] [2022-11-02 21:10:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:03,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:03,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:03,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592036994] [2022-11-02 21:10:03,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592036994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:03,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:03,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:10:03,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605563647] [2022-11-02 21:10:03,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:03,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:10:03,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:03,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:10:03,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:10:03,878 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-02 21:10:03,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 369 transitions, 819 flow. Second operand has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:03,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:03,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-02 21:10:03,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:04,193 INFO L130 PetriNetUnfolder]: 135/1382 cut-off events. [2022-11-02 21:10:04,193 INFO L131 PetriNetUnfolder]: For 127/128 co-relation queries the response was YES. [2022-11-02 21:10:04,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 1382 events. 135/1382 cut-off events. For 127/128 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8560 event pairs, 96 based on Foata normal form. 0/1311 useless extension candidates. Maximal degree in co-relation 1791. Up to 326 conditions per place. [2022-11-02 21:10:04,263 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 45 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2022-11-02 21:10:04,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 369 transitions, 914 flow [2022-11-02 21:10:04,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:10:04,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:10:04,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1158 transitions. [2022-11-02 21:10:04,267 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8502202643171806 [2022-11-02 21:10:04,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1158 transitions. [2022-11-02 21:10:04,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1158 transitions. [2022-11-02 21:10:04,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:04,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1158 transitions. [2022-11-02 21:10:04,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:04,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:04,273 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:04,273 INFO L175 Difference]: Start difference. First operand has 376 places, 369 transitions, 819 flow. Second operand 3 states and 1158 transitions. [2022-11-02 21:10:04,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 369 transitions, 914 flow [2022-11-02 21:10:04,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 369 transitions, 910 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:10:04,280 INFO L231 Difference]: Finished difference. Result has 375 places, 368 transitions, 817 flow [2022-11-02 21:10:04,281 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=817, PETRI_PLACES=375, PETRI_TRANSITIONS=368} [2022-11-02 21:10:04,281 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -44 predicate places. [2022-11-02 21:10:04,281 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 368 transitions, 817 flow [2022-11-02 21:10:04,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.6666666666667) internal successors, (1139), 3 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:04,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:04,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:04,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 21:10:04,283 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err35ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2022-11-02 21:10:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:04,283 INFO L85 PathProgramCache]: Analyzing trace with hash -854194109, now seen corresponding path program 1 times [2022-11-02 21:10:04,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:04,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489606424] [2022-11-02 21:10:04,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:04,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:04,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:04,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:04,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489606424] [2022-11-02 21:10:04,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489606424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:04,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:04,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:10:04,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816582917] [2022-11-02 21:10:04,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:04,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:10:04,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:04,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:10:04,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:10:04,373 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 454 [2022-11-02 21:10:04,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 368 transitions, 817 flow. Second operand has 3 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:04,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:04,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 454 [2022-11-02 21:10:04,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:04,697 INFO L130 PetriNetUnfolder]: 133/1375 cut-off events. [2022-11-02 21:10:04,698 INFO L131 PetriNetUnfolder]: For 125/126 co-relation queries the response was YES. [2022-11-02 21:10:04,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 1375 events. 133/1375 cut-off events. For 125/126 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8528 event pairs, 94 based on Foata normal form. 0/1309 useless extension candidates. Maximal degree in co-relation 1777. Up to 319 conditions per place. [2022-11-02 21:10:04,709 INFO L137 encePairwiseOnDemand]: 451/454 looper letters, 0 selfloop transitions, 0 changer transitions 368/368 dead transitions. [2022-11-02 21:10:04,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 368 transitions, 910 flow [2022-11-02 21:10:04,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:10:04,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:10:04,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1157 transitions. [2022-11-02 21:10:04,712 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8494860499265786 [2022-11-02 21:10:04,713 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1157 transitions. [2022-11-02 21:10:04,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1157 transitions. [2022-11-02 21:10:04,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:04,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1157 transitions. [2022-11-02 21:10:04,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:04,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:04,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 454.0) internal successors, (1816), 4 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:04,721 INFO L175 Difference]: Start difference. First operand has 375 places, 368 transitions, 817 flow. Second operand 3 states and 1157 transitions. [2022-11-02 21:10:04,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 368 transitions, 910 flow [2022-11-02 21:10:04,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 368 transitions, 906 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:10:04,727 INFO L231 Difference]: Finished difference. Result has 374 places, 0 transitions, 0 flow [2022-11-02 21:10:04,728 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=454, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=374, PETRI_TRANSITIONS=0} [2022-11-02 21:10:04,728 INFO L287 CegarLoopForPetriNet]: 419 programPoint places, -45 predicate places. [2022-11-02 21:10:04,729 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 0 transitions, 0 flow [2022-11-02 21:10:04,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:04,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (100 of 101 remaining) [2022-11-02 21:10:04,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (99 of 101 remaining) [2022-11-02 21:10:04,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (98 of 101 remaining) [2022-11-02 21:10:04,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (97 of 101 remaining) [2022-11-02 21:10:04,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (96 of 101 remaining) [2022-11-02 21:10:04,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (95 of 101 remaining) [2022-11-02 21:10:04,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (94 of 101 remaining) [2022-11-02 21:10:04,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (93 of 101 remaining) [2022-11-02 21:10:04,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (92 of 101 remaining) [2022-11-02 21:10:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (91 of 101 remaining) [2022-11-02 21:10:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (90 of 101 remaining) [2022-11-02 21:10:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (89 of 101 remaining) [2022-11-02 21:10:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (88 of 101 remaining) [2022-11-02 21:10:04,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (87 of 101 remaining) [2022-11-02 21:10:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (86 of 101 remaining) [2022-11-02 21:10:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (85 of 101 remaining) [2022-11-02 21:10:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (84 of 101 remaining) [2022-11-02 21:10:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (83 of 101 remaining) [2022-11-02 21:10:04,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (82 of 101 remaining) [2022-11-02 21:10:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (81 of 101 remaining) [2022-11-02 21:10:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (80 of 101 remaining) [2022-11-02 21:10:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (79 of 101 remaining) [2022-11-02 21:10:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (78 of 101 remaining) [2022-11-02 21:10:04,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (77 of 101 remaining) [2022-11-02 21:10:04,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (76 of 101 remaining) [2022-11-02 21:10:04,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (75 of 101 remaining) [2022-11-02 21:10:04,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (74 of 101 remaining) [2022-11-02 21:10:04,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (73 of 101 remaining) [2022-11-02 21:10:04,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (72 of 101 remaining) [2022-11-02 21:10:04,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (71 of 101 remaining) [2022-11-02 21:10:04,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (70 of 101 remaining) [2022-11-02 21:10:04,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (69 of 101 remaining) [2022-11-02 21:10:04,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (68 of 101 remaining) [2022-11-02 21:10:04,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (67 of 101 remaining) [2022-11-02 21:10:04,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (66 of 101 remaining) [2022-11-02 21:10:04,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (65 of 101 remaining) [2022-11-02 21:10:04,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (64 of 101 remaining) [2022-11-02 21:10:04,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (63 of 101 remaining) [2022-11-02 21:10:04,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (62 of 101 remaining) [2022-11-02 21:10:04,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (61 of 101 remaining) [2022-11-02 21:10:04,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (60 of 101 remaining) [2022-11-02 21:10:04,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (59 of 101 remaining) [2022-11-02 21:10:04,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (58 of 101 remaining) [2022-11-02 21:10:04,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (57 of 101 remaining) [2022-11-02 21:10:04,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 101 remaining) [2022-11-02 21:10:04,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 101 remaining) [2022-11-02 21:10:04,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 101 remaining) [2022-11-02 21:10:04,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (53 of 101 remaining) [2022-11-02 21:10:04,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (52 of 101 remaining) [2022-11-02 21:10:04,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 101 remaining) [2022-11-02 21:10:04,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (50 of 101 remaining) [2022-11-02 21:10:04,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (49 of 101 remaining) [2022-11-02 21:10:04,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (48 of 101 remaining) [2022-11-02 21:10:04,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (47 of 101 remaining) [2022-11-02 21:10:04,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (46 of 101 remaining) [2022-11-02 21:10:04,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 101 remaining) [2022-11-02 21:10:04,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 101 remaining) [2022-11-02 21:10:04,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (43 of 101 remaining) [2022-11-02 21:10:04,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (42 of 101 remaining) [2022-11-02 21:10:04,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (41 of 101 remaining) [2022-11-02 21:10:04,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (40 of 101 remaining) [2022-11-02 21:10:04,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (39 of 101 remaining) [2022-11-02 21:10:04,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (38 of 101 remaining) [2022-11-02 21:10:04,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (37 of 101 remaining) [2022-11-02 21:10:04,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (36 of 101 remaining) [2022-11-02 21:10:04,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (35 of 101 remaining) [2022-11-02 21:10:04,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (34 of 101 remaining) [2022-11-02 21:10:04,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (33 of 101 remaining) [2022-11-02 21:10:04,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (32 of 101 remaining) [2022-11-02 21:10:04,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (31 of 101 remaining) [2022-11-02 21:10:04,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (30 of 101 remaining) [2022-11-02 21:10:04,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (29 of 101 remaining) [2022-11-02 21:10:04,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (28 of 101 remaining) [2022-11-02 21:10:04,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (27 of 101 remaining) [2022-11-02 21:10:04,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (26 of 101 remaining) [2022-11-02 21:10:04,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (25 of 101 remaining) [2022-11-02 21:10:04,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (24 of 101 remaining) [2022-11-02 21:10:04,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (23 of 101 remaining) [2022-11-02 21:10:04,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (22 of 101 remaining) [2022-11-02 21:10:04,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (21 of 101 remaining) [2022-11-02 21:10:04,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (20 of 101 remaining) [2022-11-02 21:10:04,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (19 of 101 remaining) [2022-11-02 21:10:04,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (18 of 101 remaining) [2022-11-02 21:10:04,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (17 of 101 remaining) [2022-11-02 21:10:04,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (16 of 101 remaining) [2022-11-02 21:10:04,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (15 of 101 remaining) [2022-11-02 21:10:04,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (14 of 101 remaining) [2022-11-02 21:10:04,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (13 of 101 remaining) [2022-11-02 21:10:04,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (12 of 101 remaining) [2022-11-02 21:10:04,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err24ASSERT_VIOLATIONDATA_RACE (11 of 101 remaining) [2022-11-02 21:10:04,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err25ASSERT_VIOLATIONDATA_RACE (10 of 101 remaining) [2022-11-02 21:10:04,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err26ASSERT_VIOLATIONDATA_RACE (9 of 101 remaining) [2022-11-02 21:10:04,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err27ASSERT_VIOLATIONDATA_RACE (8 of 101 remaining) [2022-11-02 21:10:04,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err28ASSERT_VIOLATIONDATA_RACE (7 of 101 remaining) [2022-11-02 21:10:04,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err29ASSERT_VIOLATIONDATA_RACE (6 of 101 remaining) [2022-11-02 21:10:04,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err30ASSERT_VIOLATIONDATA_RACE (5 of 101 remaining) [2022-11-02 21:10:04,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err31ASSERT_VIOLATIONDATA_RACE (4 of 101 remaining) [2022-11-02 21:10:04,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err32ASSERT_VIOLATIONDATA_RACE (3 of 101 remaining) [2022-11-02 21:10:04,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err33ASSERT_VIOLATIONDATA_RACE (2 of 101 remaining) [2022-11-02 21:10:04,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err34ASSERT_VIOLATIONDATA_RACE (1 of 101 remaining) [2022-11-02 21:10:04,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err35ASSERT_VIOLATIONDATA_RACE (0 of 101 remaining) [2022-11-02 21:10:04,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 21:10:04,756 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:04,765 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:10:04,765 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:10:04,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:10:04 BasicIcfg [2022-11-02 21:10:04,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:10:04,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:10:04,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:10:04,777 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:10:04,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:09:30" (3/4) ... [2022-11-02 21:10:04,781 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 21:10:04,787 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 21:10:04,787 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 21:10:04,793 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-02 21:10:04,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 21:10:04,794 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 21:10:04,795 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 21:10:04,853 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:10:04,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:10:04,854 INFO L158 Benchmark]: Toolchain (without parser) took 35978.32ms. Allocated memory was 144.7MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 113.6MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-02 21:10:04,854 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:10:04,855 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.30ms. Allocated memory is still 144.7MB. Free memory was 113.4MB in the beginning and 118.2MB in the end (delta: -4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 21:10:04,855 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.85ms. Allocated memory is still 144.7MB. Free memory was 118.2MB in the beginning and 115.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:10:04,855 INFO L158 Benchmark]: Boogie Preprocessor took 42.64ms. Allocated memory is still 144.7MB. Free memory was 115.3MB in the beginning and 112.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:10:04,856 INFO L158 Benchmark]: RCFGBuilder took 1044.59ms. Allocated memory is still 144.7MB. Free memory was 112.4MB in the beginning and 80.5MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-02 21:10:04,856 INFO L158 Benchmark]: TraceAbstraction took 34353.17ms. Allocated memory was 144.7MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 79.6MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-02 21:10:04,856 INFO L158 Benchmark]: Witness Printer took 76.98ms. Allocated memory is still 7.9GB. Free memory was 6.7GB in the beginning and 6.7GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 21:10:04,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 47.1MB in the beginning and 47.0MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.30ms. Allocated memory is still 144.7MB. Free memory was 113.4MB in the beginning and 118.2MB in the end (delta: -4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.85ms. Allocated memory is still 144.7MB. Free memory was 118.2MB in the beginning and 115.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.64ms. Allocated memory is still 144.7MB. Free memory was 115.3MB in the beginning and 112.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1044.59ms. Allocated memory is still 144.7MB. Free memory was 112.4MB in the beginning and 80.5MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 34353.17ms. Allocated memory was 144.7MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 79.6MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 76.98ms. Allocated memory is still 7.9GB. Free memory was 6.7GB in the beginning and 6.7GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 708 locations, 101 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 34.1s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 29.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 309 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 309 mSDsluCounter, 713 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 459 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2016 IncrementalHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 459 mSolverCounterUnsat, 661 mSDtfsCounter, 2016 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=880occurred in iteration=0, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 2313 NumberOfCodeBlocks, 2313 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2292 ConstructedInterpolants, 0 QuantifiedInterpolants, 3165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 55 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 21:10:04,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_956e507b-e96f-4f57-b5d7-391d3cef2a1a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE