./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/fib_unsafe-7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/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_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/fib_unsafe-7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/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_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/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 a938b9e3b803ef0b08d2618a78ac055be54a6e48f84c6853aab11e3467af8157 --- 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 21:00:41,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:00:41,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:00:41,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:00:41,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:00:41,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:00:41,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:00:41,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:00:41,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:00:41,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:00:41,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:00:41,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:00:41,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:00:41,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:00:41,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:00:41,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:00:41,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:00:41,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:00:41,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:00:41,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:00:41,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:00:41,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:00:41,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:00:41,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:00:41,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:00:41,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:00:41,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:00:41,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:00:41,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:00:41,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:00:41,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:00:41,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:00:41,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:00:41,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:00:41,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:00:41,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:00:41,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:00:41,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:00:41,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:00:41,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:00:41,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:00:41,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:00:41,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:00:41,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:00:41,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:00:41,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:00:41,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:00:41,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:00:41,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:00:41,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:00:41,463 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:00:41,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:00:41,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:00:41,464 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:00:41,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:00:41,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:00:41,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:00:41,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:00:41,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:00:41,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:00:41,466 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:00:41,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:00:41,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:00:41,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:00:41,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:00:41,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:00:41,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:00:41,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:00:41,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:00:41,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:00:41,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:00:41,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:00:41,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:00:41,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:00:41,469 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:00:41,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:00:41,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:00:41,470 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_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a938b9e3b803ef0b08d2618a78ac055be54a6e48f84c6853aab11e3467af8157 [2022-11-02 21:00:41,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:00:41,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:00:41,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:00:41,809 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:00:41,809 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:00:41,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread/fib_unsafe-7.i [2022-11-02 21:00:41,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/data/4d034381d/52c5499ebc534065b0055997d97b39b2/FLAGbc6642158 [2022-11-02 21:00:42,434 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:00:42,434 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/sv-benchmarks/c/pthread/fib_unsafe-7.i [2022-11-02 21:00:42,456 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/data/4d034381d/52c5499ebc534065b0055997d97b39b2/FLAGbc6642158 [2022-11-02 21:00:42,733 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/data/4d034381d/52c5499ebc534065b0055997d97b39b2 [2022-11-02 21:00:42,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:00:42,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:00:42,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:00:42,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:00:42,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:00:42,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:00:42" (1/1) ... [2022-11-02 21:00:42,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56189bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:42, skipping insertion in model container [2022-11-02 21:00:42,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:00:42" (1/1) ... [2022-11-02 21:00:42,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:00:42,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:00:43,279 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_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/sv-benchmarks/c/pthread/fib_unsafe-7.i[30811,30824] [2022-11-02 21:00:43,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:00:43,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:00:43,369 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_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/sv-benchmarks/c/pthread/fib_unsafe-7.i[30811,30824] [2022-11-02 21:00:43,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:00:43,403 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:00:43,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43 WrapperNode [2022-11-02 21:00:43,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:00:43,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:00:43,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:00:43,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:00:43,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,470 INFO L138 Inliner]: procedures = 164, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-02 21:00:43,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:00:43,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:00:43,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:00:43,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:00:43,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,503 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:00:43,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:00:43,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:00:43,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:00:43,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (1/1) ... [2022-11-02 21:00:43,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:00:43,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:00:43,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:00:43,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:00:43,589 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-02 21:00:43,590 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-02 21:00:43,590 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-02 21:00:43,590 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-02 21:00:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:00:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 21:00:43,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:00:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:00:43,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:00:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:00:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 21:00:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:00:43,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:00:43,599 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 21:00:43,793 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:00:43,795 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:00:44,203 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:00:44,277 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:00:44,281 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 21:00:44,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:44 BoogieIcfgContainer [2022-11-02 21:00:44,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:00:44,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:00:44,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:00:44,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:00:44,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:00:42" (1/3) ... [2022-11-02 21:00:44,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@213e4a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:00:44, skipping insertion in model container [2022-11-02 21:00:44,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:00:43" (2/3) ... [2022-11-02 21:00:44,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@213e4a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:00:44, skipping insertion in model container [2022-11-02 21:00:44,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:44" (3/3) ... [2022-11-02 21:00:44,300 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_unsafe-7.i [2022-11-02 21:00:44,315 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:00:44,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:00:44,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-02 21:00:44,325 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:00:44,423 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 21:00:44,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 193 transitions, 396 flow [2022-11-02 21:00:44,546 INFO L130 PetriNetUnfolder]: 8/191 cut-off events. [2022-11-02 21:00:44,547 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:44,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 191 events. 8/191 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 364 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 159. Up to 2 conditions per place. [2022-11-02 21:00:44,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 193 transitions, 396 flow [2022-11-02 21:00:44,561 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 191 transitions, 388 flow [2022-11-02 21:00:44,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:00:44,580 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;@413811b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:00:44,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-02 21:00:44,599 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-11-02 21:00:44,602 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:44,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:44,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:44,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:44,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:44,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1806377174, now seen corresponding path program 1 times [2022-11-02 21:00:44,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:44,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90969268] [2022-11-02 21:00:44,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:44,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:44,851 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 21:00:44,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:44,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90969268] [2022-11-02 21:00:44,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90969268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:44,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:44,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-02 21:00:44,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526459395] [2022-11-02 21:00:44,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:44,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 21:00:44,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 21:00:44,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:00:44,901 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 193 [2022-11-02 21:00:44,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 191 transitions, 388 flow. Second operand has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:44,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:44,909 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 193 [2022-11-02 21:00:44,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:44,998 INFO L130 PetriNetUnfolder]: 9/295 cut-off events. [2022-11-02 21:00:44,998 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:00:45,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 295 events. 9/295 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 957 event pairs, 2 based on Foata normal form. 10/255 useless extension candidates. Maximal degree in co-relation 274. Up to 11 conditions per place. [2022-11-02 21:00:45,008 INFO L137 encePairwiseOnDemand]: 181/193 looper letters, 6 selfloop transitions, 0 changer transitions 0/178 dead transitions. [2022-11-02 21:00:45,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 178 transitions, 374 flow [2022-11-02 21:00:45,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 21:00:45,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 21:00:45,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 366 transitions. [2022-11-02 21:00:45,026 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9481865284974094 [2022-11-02 21:00:45,027 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 366 transitions. [2022-11-02 21:00:45,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 366 transitions. [2022-11-02 21:00:45,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:45,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 366 transitions. [2022-11-02 21:00:45,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 183.0) internal successors, (366), 2 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,041 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,043 INFO L175 Difference]: Start difference. First operand has 190 places, 191 transitions, 388 flow. Second operand 2 states and 366 transitions. [2022-11-02 21:00:45,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 178 transitions, 374 flow [2022-11-02 21:00:45,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 178 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:45,054 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 360 flow [2022-11-02 21:00:45,056 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=360, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2022-11-02 21:00:45,060 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -10 predicate places. [2022-11-02 21:00:45,060 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 360 flow [2022-11-02 21:00:45,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 174.5) internal successors, (349), 2 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:45,061 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] [2022-11-02 21:00:45,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:00:45,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:45,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:45,063 INFO L85 PathProgramCache]: Analyzing trace with hash -929261081, now seen corresponding path program 1 times [2022-11-02 21:00:45,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:45,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293083841] [2022-11-02 21:00:45,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:45,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:45,241 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 21:00:45,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:45,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293083841] [2022-11-02 21:00:45,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293083841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:45,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:45,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:45,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491923474] [2022-11-02 21:00:45,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:45,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:45,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:45,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:45,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:45,250 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-02 21:00:45,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:45,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-02 21:00:45,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:45,430 INFO L130 PetriNetUnfolder]: 48/393 cut-off events. [2022-11-02 21:00:45,462 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:45,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 393 events. 48/393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1840 event pairs, 14 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 511. Up to 77 conditions per place. [2022-11-02 21:00:45,471 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 19 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2022-11-02 21:00:45,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 179 transitions, 406 flow [2022-11-02 21:00:45,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:45,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 502 transitions. [2022-11-02 21:00:45,475 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8670120898100173 [2022-11-02 21:00:45,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 502 transitions. [2022-11-02 21:00:45,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 502 transitions. [2022-11-02 21:00:45,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:45,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 502 transitions. [2022-11-02 21:00:45,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,482 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 360 flow. Second operand 3 states and 502 transitions. [2022-11-02 21:00:45,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 179 transitions, 406 flow [2022-11-02 21:00:45,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 179 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 21:00:45,487 INFO L231 Difference]: Finished difference. Result has 181 places, 177 transitions, 362 flow [2022-11-02 21:00:45,489 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=181, PETRI_TRANSITIONS=177} [2022-11-02 21:00:45,490 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -9 predicate places. [2022-11-02 21:00:45,490 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 177 transitions, 362 flow [2022-11-02 21:00:45,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:45,491 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] [2022-11-02 21:00:45,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:00:45,492 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:45,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:45,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1742837375, now seen corresponding path program 1 times [2022-11-02 21:00:45,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:45,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141978043] [2022-11-02 21:00:45,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:45,591 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 21:00:45,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:45,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141978043] [2022-11-02 21:00:45,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141978043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:45,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:45,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:45,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388460233] [2022-11-02 21:00:45,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:45,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:45,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:45,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:45,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:45,598 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-02 21:00:45,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 177 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:45,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-02 21:00:45,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:45,702 INFO L130 PetriNetUnfolder]: 34/261 cut-off events. [2022-11-02 21:00:45,703 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:00:45,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 261 events. 34/261 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 975 event pairs, 11 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 354. Up to 34 conditions per place. [2022-11-02 21:00:45,708 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2022-11-02 21:00:45,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 177 transitions, 398 flow [2022-11-02 21:00:45,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:45,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:45,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2022-11-02 21:00:45,711 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2022-11-02 21:00:45,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2022-11-02 21:00:45,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2022-11-02 21:00:45,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:45,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2022-11-02 21:00:45,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,716 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,716 INFO L175 Difference]: Start difference. First operand has 181 places, 177 transitions, 362 flow. Second operand 3 states and 505 transitions. [2022-11-02 21:00:45,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 177 transitions, 398 flow [2022-11-02 21:00:45,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 177 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:45,721 INFO L231 Difference]: Finished difference. Result has 179 places, 175 transitions, 358 flow [2022-11-02 21:00:45,722 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=179, PETRI_TRANSITIONS=175} [2022-11-02 21:00:45,722 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -11 predicate places. [2022-11-02 21:00:45,723 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 175 transitions, 358 flow [2022-11-02 21:00:45,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:45,724 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] [2022-11-02 21:00:45,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:00:45,724 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:45,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:45,725 INFO L85 PathProgramCache]: Analyzing trace with hash -418600324, now seen corresponding path program 1 times [2022-11-02 21:00:45,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:45,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196329000] [2022-11-02 21:00:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:45,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:45,780 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 21:00:45,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:45,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196329000] [2022-11-02 21:00:45,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196329000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:45,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:45,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:45,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712416758] [2022-11-02 21:00:45,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:45,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:45,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:45,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:45,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:45,784 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-02 21:00:45,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 175 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:45,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-02 21:00:45,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:45,868 INFO L130 PetriNetUnfolder]: 22/303 cut-off events. [2022-11-02 21:00:45,868 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:45,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 303 events. 22/303 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1172 event pairs, 13 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 360. Up to 44 conditions per place. [2022-11-02 21:00:45,874 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 18 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2022-11-02 21:00:45,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 175 transitions, 398 flow [2022-11-02 21:00:45,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:45,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 501 transitions. [2022-11-02 21:00:45,876 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8652849740932642 [2022-11-02 21:00:45,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 501 transitions. [2022-11-02 21:00:45,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 501 transitions. [2022-11-02 21:00:45,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:45,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 501 transitions. [2022-11-02 21:00:45,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,882 INFO L175 Difference]: Start difference. First operand has 179 places, 175 transitions, 358 flow. Second operand 3 states and 501 transitions. [2022-11-02 21:00:45,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 175 transitions, 398 flow [2022-11-02 21:00:45,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 175 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:45,886 INFO L231 Difference]: Finished difference. Result has 178 places, 174 transitions, 356 flow [2022-11-02 21:00:45,886 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=178, PETRI_TRANSITIONS=174} [2022-11-02 21:00:45,887 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -12 predicate places. [2022-11-02 21:00:45,887 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 174 transitions, 356 flow [2022-11-02 21:00:45,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:45,888 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] [2022-11-02 21:00:45,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:00:45,889 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:45,890 INFO L85 PathProgramCache]: Analyzing trace with hash 2063316520, now seen corresponding path program 1 times [2022-11-02 21:00:45,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:45,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695239613] [2022-11-02 21:00:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:45,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:45,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:45,938 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 21:00:45,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:45,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695239613] [2022-11-02 21:00:45,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695239613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:45,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:45,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:45,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513288565] [2022-11-02 21:00:45,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:45,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:45,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:45,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:45,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:45,942 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-02 21:00:45,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 174 transitions, 356 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:45,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:45,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-02 21:00:45,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:46,028 INFO L130 PetriNetUnfolder]: 18/295 cut-off events. [2022-11-02 21:00:46,029 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 21:00:46,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 295 events. 18/295 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1104 event pairs, 6 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 342. Up to 23 conditions per place. [2022-11-02 21:00:46,033 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-02 21:00:46,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 173 transitions, 386 flow [2022-11-02 21:00:46,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-02 21:00:46,035 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-02 21:00:46,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-02 21:00:46,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-02 21:00:46,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:46,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-02 21:00:46,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,039 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,040 INFO L175 Difference]: Start difference. First operand has 178 places, 174 transitions, 356 flow. Second operand 3 states and 504 transitions. [2022-11-02 21:00:46,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 173 transitions, 386 flow [2022-11-02 21:00:46,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 173 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:46,043 INFO L231 Difference]: Finished difference. Result has 176 places, 172 transitions, 352 flow [2022-11-02 21:00:46,044 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=176, PETRI_TRANSITIONS=172} [2022-11-02 21:00:46,047 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -14 predicate places. [2022-11-02 21:00:46,048 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 172 transitions, 352 flow [2022-11-02 21:00:46,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:46,049 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] [2022-11-02 21:00:46,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:00:46,049 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:46,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:46,051 INFO L85 PathProgramCache]: Analyzing trace with hash 940500773, now seen corresponding path program 1 times [2022-11-02 21:00:46,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:46,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663003317] [2022-11-02 21:00:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:46,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:46,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:46,139 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 21:00:46,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:46,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663003317] [2022-11-02 21:00:46,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663003317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:46,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:46,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:46,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050344821] [2022-11-02 21:00:46,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:46,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:46,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:46,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:46,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:46,144 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 193 [2022-11-02 21:00:46,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:46,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 193 [2022-11-02 21:00:46,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:46,282 INFO L130 PetriNetUnfolder]: 69/506 cut-off events. [2022-11-02 21:00:46,283 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:46,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 506 events. 69/506 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2819 event pairs, 50 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 638. Up to 107 conditions per place. [2022-11-02 21:00:46,291 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 20 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-02 21:00:46,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 173 transitions, 398 flow [2022-11-02 21:00:46,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:46,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2022-11-02 21:00:46,293 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8635578583765112 [2022-11-02 21:00:46,293 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 500 transitions. [2022-11-02 21:00:46,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 500 transitions. [2022-11-02 21:00:46,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:46,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 500 transitions. [2022-11-02 21:00:46,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,297 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,297 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 352 flow. Second operand 3 states and 500 transitions. [2022-11-02 21:00:46,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 173 transitions, 398 flow [2022-11-02 21:00:46,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 173 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:46,303 INFO L231 Difference]: Finished difference. Result has 175 places, 171 transitions, 350 flow [2022-11-02 21:00:46,303 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=175, PETRI_TRANSITIONS=171} [2022-11-02 21:00:46,306 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -15 predicate places. [2022-11-02 21:00:46,306 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 171 transitions, 350 flow [2022-11-02 21:00:46,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:46,308 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] [2022-11-02 21:00:46,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:00:46,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:46,310 INFO L85 PathProgramCache]: Analyzing trace with hash 193157200, now seen corresponding path program 1 times [2022-11-02 21:00:46,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:46,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721772505] [2022-11-02 21:00:46,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:46,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:46,403 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 21:00:46,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:46,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721772505] [2022-11-02 21:00:46,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721772505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:46,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:46,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:46,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876159547] [2022-11-02 21:00:46,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:46,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:46,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:46,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:46,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:46,416 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-02 21:00:46,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 171 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:46,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-02 21:00:46,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:46,502 INFO L130 PetriNetUnfolder]: 26/228 cut-off events. [2022-11-02 21:00:46,502 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:46,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 228 events. 26/228 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 809 event pairs, 16 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 312. Up to 49 conditions per place. [2022-11-02 21:00:46,506 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 16 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2022-11-02 21:00:46,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 172 transitions, 390 flow [2022-11-02 21:00:46,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:46,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:46,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2022-11-02 21:00:46,509 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8618307426597582 [2022-11-02 21:00:46,510 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 499 transitions. [2022-11-02 21:00:46,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 499 transitions. [2022-11-02 21:00:46,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:46,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 499 transitions. [2022-11-02 21:00:46,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,515 INFO L175 Difference]: Start difference. First operand has 175 places, 171 transitions, 350 flow. Second operand 3 states and 499 transitions. [2022-11-02 21:00:46,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 172 transitions, 390 flow [2022-11-02 21:00:46,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 172 transitions, 386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:46,519 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 348 flow [2022-11-02 21:00:46,519 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2022-11-02 21:00:46,520 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -16 predicate places. [2022-11-02 21:00:46,521 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 348 flow [2022-11-02 21:00:46,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:46,521 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] [2022-11-02 21:00:46,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:00:46,522 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:46,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:46,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1907786638, now seen corresponding path program 1 times [2022-11-02 21:00:46,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:46,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414711801] [2022-11-02 21:00:46,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:46,577 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 21:00:46,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:46,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414711801] [2022-11-02 21:00:46,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414711801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:46,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:46,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:46,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963328946] [2022-11-02 21:00:46,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:46,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:46,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:46,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:46,584 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-02 21:00:46,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:46,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-02 21:00:46,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:46,691 INFO L130 PetriNetUnfolder]: 49/471 cut-off events. [2022-11-02 21:00:46,691 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:46,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 471 events. 49/471 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2365 event pairs, 22 based on Foata normal form. 0/405 useless extension candidates. Maximal degree in co-relation 561. Up to 51 conditions per place. [2022-11-02 21:00:46,696 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2022-11-02 21:00:46,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 170 transitions, 382 flow [2022-11-02 21:00:46,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:46,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2022-11-02 21:00:46,698 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8721934369602763 [2022-11-02 21:00:46,699 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2022-11-02 21:00:46,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2022-11-02 21:00:46,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:46,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2022-11-02 21:00:46,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,702 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,703 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 348 flow. Second operand 3 states and 505 transitions. [2022-11-02 21:00:46,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 170 transitions, 382 flow [2022-11-02 21:00:46,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 170 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:46,706 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 344 flow [2022-11-02 21:00:46,706 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2022-11-02 21:00:46,707 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -18 predicate places. [2022-11-02 21:00:46,707 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 344 flow [2022-11-02 21:00:46,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:46,708 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] [2022-11-02 21:00:46,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:00:46,708 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:46,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:46,709 INFO L85 PathProgramCache]: Analyzing trace with hash 430849023, now seen corresponding path program 1 times [2022-11-02 21:00:46,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:46,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312673582] [2022-11-02 21:00:46,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:46,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:46,780 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 21:00:46,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:46,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312673582] [2022-11-02 21:00:46,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312673582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:46,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:46,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:00:46,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628492851] [2022-11-02 21:00:46,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:46,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:46,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:46,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:46,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:46,784 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 193 [2022-11-02 21:00:46,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:46,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 193 [2022-11-02 21:00:46,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:46,887 INFO L130 PetriNetUnfolder]: 41/615 cut-off events. [2022-11-02 21:00:46,887 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:46,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 615 events. 41/615 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2895 event pairs, 14 based on Foata normal form. 0/523 useless extension candidates. Maximal degree in co-relation 704. Up to 37 conditions per place. [2022-11-02 21:00:46,894 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-02 21:00:46,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 173 transitions, 388 flow [2022-11-02 21:00:46,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:46,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:46,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 522 transitions. [2022-11-02 21:00:46,896 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9015544041450777 [2022-11-02 21:00:46,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 522 transitions. [2022-11-02 21:00:46,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 522 transitions. [2022-11-02 21:00:46,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:46,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 522 transitions. [2022-11-02 21:00:46,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,900 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,901 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 344 flow. Second operand 3 states and 522 transitions. [2022-11-02 21:00:46,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 173 transitions, 388 flow [2022-11-02 21:00:46,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 173 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:46,905 INFO L231 Difference]: Finished difference. Result has 173 places, 169 transitions, 352 flow [2022-11-02 21:00:46,905 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=173, PETRI_TRANSITIONS=169} [2022-11-02 21:00:46,906 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -17 predicate places. [2022-11-02 21:00:46,906 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 169 transitions, 352 flow [2022-11-02 21:00:46,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:46,907 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] [2022-11-02 21:00:46,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:00:46,907 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:46,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:46,907 INFO L85 PathProgramCache]: Analyzing trace with hash 430848325, now seen corresponding path program 1 times [2022-11-02 21:00:46,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:46,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739424364] [2022-11-02 21:00:46,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:46,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:46,944 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 21:00:46,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:46,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739424364] [2022-11-02 21:00:46,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739424364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:46,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:46,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:46,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021842234] [2022-11-02 21:00:46,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:46,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:46,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:46,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:46,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:46,947 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-02 21:00:46,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 169 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:46,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:46,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-02 21:00:46,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:47,078 INFO L130 PetriNetUnfolder]: 81/659 cut-off events. [2022-11-02 21:00:47,078 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:00:47,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 659 events. 81/659 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3234 event pairs, 26 based on Foata normal form. 0/575 useless extension candidates. Maximal degree in co-relation 808. Up to 71 conditions per place. [2022-11-02 21:00:47,085 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 3 changer transitions 0/169 dead transitions. [2022-11-02 21:00:47,085 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 169 transitions, 382 flow [2022-11-02 21:00:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:47,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:47,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-02 21:00:47,087 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-02 21:00:47,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-02 21:00:47,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-02 21:00:47,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:47,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-02 21:00:47,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,091 INFO L175 Difference]: Start difference. First operand has 173 places, 169 transitions, 352 flow. Second operand 3 states and 512 transitions. [2022-11-02 21:00:47,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 169 transitions, 382 flow [2022-11-02 21:00:47,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 169 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:00:47,095 INFO L231 Difference]: Finished difference. Result has 172 places, 167 transitions, 352 flow [2022-11-02 21:00:47,096 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=172, PETRI_TRANSITIONS=167} [2022-11-02 21:00:47,097 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -18 predicate places. [2022-11-02 21:00:47,097 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 167 transitions, 352 flow [2022-11-02 21:00:47,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:47,097 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] [2022-11-02 21:00:47,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:00:47,098 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:47,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1728395284, now seen corresponding path program 1 times [2022-11-02 21:00:47,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:47,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982853571] [2022-11-02 21:00:47,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:47,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:47,163 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 21:00:47,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:47,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982853571] [2022-11-02 21:00:47,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982853571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:47,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:47,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:47,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313558712] [2022-11-02 21:00:47,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:47,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:47,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:47,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:47,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:47,166 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-02 21:00:47,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 167 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:47,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-02 21:00:47,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:47,289 INFO L130 PetriNetUnfolder]: 89/647 cut-off events. [2022-11-02 21:00:47,289 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:47,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 647 events. 89/647 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3245 event pairs, 26 based on Foata normal form. 0/579 useless extension candidates. Maximal degree in co-relation 826. Up to 72 conditions per place. [2022-11-02 21:00:47,297 INFO L137 encePairwiseOnDemand]: 189/193 looper letters, 13 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2022-11-02 21:00:47,297 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 167 transitions, 382 flow [2022-11-02 21:00:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:47,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:47,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-02 21:00:47,300 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-02 21:00:47,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-02 21:00:47,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-02 21:00:47,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:47,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-02 21:00:47,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,304 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,304 INFO L175 Difference]: Start difference. First operand has 172 places, 167 transitions, 352 flow. Second operand 3 states and 512 transitions. [2022-11-02 21:00:47,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 167 transitions, 382 flow [2022-11-02 21:00:47,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 167 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:47,308 INFO L231 Difference]: Finished difference. Result has 170 places, 165 transitions, 346 flow [2022-11-02 21:00:47,308 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=170, PETRI_TRANSITIONS=165} [2022-11-02 21:00:47,309 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -20 predicate places. [2022-11-02 21:00:47,309 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 165 transitions, 346 flow [2022-11-02 21:00:47,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.0) internal successors, (501), 3 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:47,310 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] [2022-11-02 21:00:47,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 21:00:47,310 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:47,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:47,311 INFO L85 PathProgramCache]: Analyzing trace with hash -215926811, now seen corresponding path program 1 times [2022-11-02 21:00:47,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:47,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189237052] [2022-11-02 21:00:47,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:47,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:47,383 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 21:00:47,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:47,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189237052] [2022-11-02 21:00:47,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189237052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:47,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:47,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:47,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744088288] [2022-11-02 21:00:47,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:47,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:47,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:47,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:47,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:47,386 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 193 [2022-11-02 21:00:47,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 165 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:47,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 193 [2022-11-02 21:00:47,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:47,477 INFO L130 PetriNetUnfolder]: 18/346 cut-off events. [2022-11-02 21:00:47,478 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:47,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 346 events. 18/346 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1007 event pairs, 9 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 406. Up to 34 conditions per place. [2022-11-02 21:00:47,482 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-11-02 21:00:47,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 165 transitions, 380 flow [2022-11-02 21:00:47,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:47,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:47,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2022-11-02 21:00:47,484 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8601036269430051 [2022-11-02 21:00:47,484 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 498 transitions. [2022-11-02 21:00:47,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 498 transitions. [2022-11-02 21:00:47,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:47,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 498 transitions. [2022-11-02 21:00:47,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,488 INFO L175 Difference]: Start difference. First operand has 170 places, 165 transitions, 346 flow. Second operand 3 states and 498 transitions. [2022-11-02 21:00:47,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 165 transitions, 380 flow [2022-11-02 21:00:47,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 165 transitions, 376 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:47,497 INFO L231 Difference]: Finished difference. Result has 169 places, 164 transitions, 344 flow [2022-11-02 21:00:47,497 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=169, PETRI_TRANSITIONS=164} [2022-11-02 21:00:47,498 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -21 predicate places. [2022-11-02 21:00:47,499 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 164 transitions, 344 flow [2022-11-02 21:00:47,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:47,499 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] [2022-11-02 21:00:47,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 21:00:47,500 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:47,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:47,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1939820954, now seen corresponding path program 1 times [2022-11-02 21:00:47,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:47,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119203853] [2022-11-02 21:00:47,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:47,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:47,565 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 21:00:47,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:47,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119203853] [2022-11-02 21:00:47,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119203853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:47,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:47,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:47,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512088734] [2022-11-02 21:00:47,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:47,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:47,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:47,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:47,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:47,569 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 193 [2022-11-02 21:00:47,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 164 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:47,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 193 [2022-11-02 21:00:47,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:47,691 INFO L130 PetriNetUnfolder]: 73/611 cut-off events. [2022-11-02 21:00:47,691 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:47,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 611 events. 73/611 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3042 event pairs, 46 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 764. Up to 99 conditions per place. [2022-11-02 21:00:47,698 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 14 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-11-02 21:00:47,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 165 transitions, 378 flow [2022-11-02 21:00:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2022-11-02 21:00:47,700 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8842832469775475 [2022-11-02 21:00:47,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 512 transitions. [2022-11-02 21:00:47,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 512 transitions. [2022-11-02 21:00:47,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:47,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 512 transitions. [2022-11-02 21:00:47,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,704 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,705 INFO L175 Difference]: Start difference. First operand has 169 places, 164 transitions, 344 flow. Second operand 3 states and 512 transitions. [2022-11-02 21:00:47,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 165 transitions, 378 flow [2022-11-02 21:00:47,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:47,709 INFO L231 Difference]: Finished difference. Result has 168 places, 163 transitions, 342 flow [2022-11-02 21:00:47,709 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=168, PETRI_TRANSITIONS=163} [2022-11-02 21:00:47,710 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -22 predicate places. [2022-11-02 21:00:47,710 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 163 transitions, 342 flow [2022-11-02 21:00:47,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:47,711 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] [2022-11-02 21:00:47,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 21:00:47,711 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:47,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:47,712 INFO L85 PathProgramCache]: Analyzing trace with hash -596713196, now seen corresponding path program 1 times [2022-11-02 21:00:47,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:47,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819299663] [2022-11-02 21:00:47,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:47,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:47,750 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 21:00:47,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:47,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819299663] [2022-11-02 21:00:47,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819299663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:47,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:47,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:47,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902721944] [2022-11-02 21:00:47,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:47,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:47,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:47,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:47,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:47,753 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-02 21:00:47,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 163 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:47,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-02 21:00:47,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:47,869 INFO L130 PetriNetUnfolder]: 73/603 cut-off events. [2022-11-02 21:00:47,869 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:47,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 773 conditions, 603 events. 73/603 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2983 event pairs, 46 based on Foata normal form. 0/561 useless extension candidates. Maximal degree in co-relation 768. Up to 99 conditions per place. [2022-11-02 21:00:47,876 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-02 21:00:47,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 164 transitions, 378 flow [2022-11-02 21:00:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:47,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:47,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-02 21:00:47,878 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-02 21:00:47,879 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-02 21:00:47,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-02 21:00:47,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:47,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-02 21:00:47,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,896 INFO L175 Difference]: Start difference. First operand has 168 places, 163 transitions, 342 flow. Second operand 3 states and 504 transitions. [2022-11-02 21:00:47,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 164 transitions, 378 flow [2022-11-02 21:00:47,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 164 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:47,901 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 340 flow [2022-11-02 21:00:47,902 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-02 21:00:47,903 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-02 21:00:47,903 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 340 flow [2022-11-02 21:00:47,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:47,905 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] [2022-11-02 21:00:47,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 21:00:47,905 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:47,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:47,906 INFO L85 PathProgramCache]: Analyzing trace with hash 187265853, now seen corresponding path program 1 times [2022-11-02 21:00:47,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:47,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694354485] [2022-11-02 21:00:47,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:47,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:47,953 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 21:00:47,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:47,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694354485] [2022-11-02 21:00:47,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694354485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:47,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:47,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:47,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472917973] [2022-11-02 21:00:47,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:47,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:47,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:47,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:47,957 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 193 [2022-11-02 21:00:47,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 340 flow. Second operand has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:47,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:47,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 193 [2022-11-02 21:00:47,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:48,077 INFO L130 PetriNetUnfolder]: 61/583 cut-off events. [2022-11-02 21:00:48,077 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:48,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 583 events. 61/583 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2567 event pairs, 18 based on Foata normal form. 0/543 useless extension candidates. Maximal degree in co-relation 708. Up to 51 conditions per place. [2022-11-02 21:00:48,084 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 11 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2022-11-02 21:00:48,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 370 flow [2022-11-02 21:00:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:48,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:48,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2022-11-02 21:00:48,086 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8946459412780656 [2022-11-02 21:00:48,087 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 518 transitions. [2022-11-02 21:00:48,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 518 transitions. [2022-11-02 21:00:48,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:48,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 518 transitions. [2022-11-02 21:00:48,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,090 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 340 flow. Second operand 3 states and 518 transitions. [2022-11-02 21:00:48,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 370 flow [2022-11-02 21:00:48,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:48,094 INFO L231 Difference]: Finished difference. Result has 167 places, 162 transitions, 344 flow [2022-11-02 21:00:48,094 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=167, PETRI_TRANSITIONS=162} [2022-11-02 21:00:48,095 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-02 21:00:48,095 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 162 transitions, 344 flow [2022-11-02 21:00:48,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.66666666666666) internal successors, (512), 3 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:48,096 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] [2022-11-02 21:00:48,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 21:00:48,096 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:48,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:48,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1490312150, now seen corresponding path program 1 times [2022-11-02 21:00:48,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:48,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136946581] [2022-11-02 21:00:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:48,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:48,140 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 21:00:48,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:48,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136946581] [2022-11-02 21:00:48,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136946581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:48,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:48,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:48,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253885016] [2022-11-02 21:00:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:48,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:48,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:48,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:48,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:48,145 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 193 [2022-11-02 21:00:48,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 162 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:48,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 193 [2022-11-02 21:00:48,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:48,254 INFO L130 PetriNetUnfolder]: 81/595 cut-off events. [2022-11-02 21:00:48,255 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-02 21:00:48,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 595 events. 81/595 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3002 event pairs, 54 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 780. Up to 115 conditions per place. [2022-11-02 21:00:48,261 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 15 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2022-11-02 21:00:48,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 163 transitions, 380 flow [2022-11-02 21:00:48,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:48,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:48,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-11-02 21:00:48,264 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8704663212435233 [2022-11-02 21:00:48,264 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-11-02 21:00:48,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-11-02 21:00:48,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:48,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-11-02 21:00:48,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,269 INFO L175 Difference]: Start difference. First operand has 167 places, 162 transitions, 344 flow. Second operand 3 states and 504 transitions. [2022-11-02 21:00:48,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 163 transitions, 380 flow [2022-11-02 21:00:48,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 163 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:00:48,274 INFO L231 Difference]: Finished difference. Result has 167 places, 161 transitions, 344 flow [2022-11-02 21:00:48,274 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=167, PETRI_TRANSITIONS=161} [2022-11-02 21:00:48,275 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -23 predicate places. [2022-11-02 21:00:48,276 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 161 transitions, 344 flow [2022-11-02 21:00:48,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:48,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:00:48,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 21:00:48,277 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:48,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash -91697017, now seen corresponding path program 1 times [2022-11-02 21:00:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:48,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65743669] [2022-11-02 21:00:48,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:48,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:48,332 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 21:00:48,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:48,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65743669] [2022-11-02 21:00:48,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65743669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:48,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:00:48,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:00:48,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181490903] [2022-11-02 21:00:48,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:48,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:48,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:48,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:00:48,335 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 193 [2022-11-02 21:00:48,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 161 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:48,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 193 [2022-11-02 21:00:48,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:48,455 INFO L130 PetriNetUnfolder]: 73/583 cut-off events. [2022-11-02 21:00:48,455 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:48,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 583 events. 73/583 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2766 event pairs, 54 based on Foata normal form. 0/557 useless extension candidates. Maximal degree in co-relation 764. Up to 115 conditions per place. [2022-11-02 21:00:48,461 INFO L137 encePairwiseOnDemand]: 190/193 looper letters, 17 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2022-11-02 21:00:48,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 162 transitions, 384 flow [2022-11-02 21:00:48,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:48,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:48,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 497 transitions. [2022-11-02 21:00:48,463 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8583765112262521 [2022-11-02 21:00:48,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 497 transitions. [2022-11-02 21:00:48,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 497 transitions. [2022-11-02 21:00:48,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:48,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 497 transitions. [2022-11-02 21:00:48,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,467 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,467 INFO L175 Difference]: Start difference. First operand has 167 places, 161 transitions, 344 flow. Second operand 3 states and 497 transitions. [2022-11-02 21:00:48,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 162 transitions, 384 flow [2022-11-02 21:00:48,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 162 transitions, 380 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:48,470 INFO L231 Difference]: Finished difference. Result has 166 places, 160 transitions, 342 flow [2022-11-02 21:00:48,471 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=166, PETRI_TRANSITIONS=160} [2022-11-02 21:00:48,472 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -24 predicate places. [2022-11-02 21:00:48,473 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 160 transitions, 342 flow [2022-11-02 21:00:48,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:48,473 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:48,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 21:00:48,474 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:48,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:48,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1186677298, now seen corresponding path program 1 times [2022-11-02 21:00:48,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:48,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150184518] [2022-11-02 21:00:48,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:48,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:48,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:48,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150184518] [2022-11-02 21:00:48,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150184518] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:00:48,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067517468] [2022-11-02 21:00:48,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:48,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:00:48,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:00:48,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:00:48,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:00:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:48,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:00:48,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:00:48,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 21:00:48,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:00:48,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067517468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:48,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:00:48,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-02 21:00:48,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701510233] [2022-11-02 21:00:48,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:48,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:48,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:48,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:48,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:00:48,790 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-02 21:00:48,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 160 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:48,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-02 21:00:48,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:48,875 INFO L130 PetriNetUnfolder]: 36/496 cut-off events. [2022-11-02 21:00:48,875 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:00:48,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 496 events. 36/496 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1860 event pairs, 1 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 574. Up to 31 conditions per place. [2022-11-02 21:00:48,882 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 9 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2022-11-02 21:00:48,882 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 164 transitions, 376 flow [2022-11-02 21:00:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:48,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 527 transitions. [2022-11-02 21:00:48,884 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9101899827288429 [2022-11-02 21:00:48,884 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 527 transitions. [2022-11-02 21:00:48,885 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 527 transitions. [2022-11-02 21:00:48,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:48,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 527 transitions. [2022-11-02 21:00:48,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,889 INFO L175 Difference]: Start difference. First operand has 166 places, 160 transitions, 342 flow. Second operand 3 states and 527 transitions. [2022-11-02 21:00:48,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 164 transitions, 376 flow [2022-11-02 21:00:48,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 164 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:48,893 INFO L231 Difference]: Finished difference. Result has 168 places, 164 transitions, 372 flow [2022-11-02 21:00:48,893 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=168, PETRI_TRANSITIONS=164} [2022-11-02 21:00:48,894 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -22 predicate places. [2022-11-02 21:00:48,894 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 164 transitions, 372 flow [2022-11-02 21:00:48,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:48,894 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:48,895 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:48,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:00:49,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-02 21:00:49,110 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:49,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:49,110 INFO L85 PathProgramCache]: Analyzing trace with hash -359410964, now seen corresponding path program 1 times [2022-11-02 21:00:49,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:49,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539910416] [2022-11-02 21:00:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:49,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:49,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:49,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:49,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539910416] [2022-11-02 21:00:49,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539910416] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:00:49,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314477550] [2022-11-02 21:00:49,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:49,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:00:49,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:00:49,227 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:00:49,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:00:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:49,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-02 21:00:49,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:00:49,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-02 21:00:49,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:00:49,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314477550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:00:49,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:00:49,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-02 21:00:49,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992526584] [2022-11-02 21:00:49,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:00:49,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:00:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:49,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:00:49,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:00:49,371 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 193 [2022-11-02 21:00:49,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 164 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:49,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:49,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 193 [2022-11-02 21:00:49,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:49,481 INFO L130 PetriNetUnfolder]: 78/616 cut-off events. [2022-11-02 21:00:49,481 INFO L131 PetriNetUnfolder]: For 138/151 co-relation queries the response was YES. [2022-11-02 21:00:49,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 616 events. 78/616 cut-off events. For 138/151 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 2799 event pairs, 0 based on Foata normal form. 8/579 useless extension candidates. Maximal degree in co-relation 880. Up to 59 conditions per place. [2022-11-02 21:00:49,490 INFO L137 encePairwiseOnDemand]: 188/193 looper letters, 12 selfloop transitions, 6 changer transitions 0/171 dead transitions. [2022-11-02 21:00:49,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 171 transitions, 436 flow [2022-11-02 21:00:49,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:00:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:00:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2022-11-02 21:00:49,492 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9119170984455959 [2022-11-02 21:00:49,492 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2022-11-02 21:00:49,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2022-11-02 21:00:49,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:49,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2022-11-02 21:00:49,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:49,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:49,495 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:49,495 INFO L175 Difference]: Start difference. First operand has 168 places, 164 transitions, 372 flow. Second operand 3 states and 528 transitions. [2022-11-02 21:00:49,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 171 transitions, 436 flow [2022-11-02 21:00:49,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 171 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:49,499 INFO L231 Difference]: Finished difference. Result has 170 places, 170 transitions, 422 flow [2022-11-02 21:00:49,499 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=170, PETRI_TRANSITIONS=170} [2022-11-02 21:00:49,500 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -20 predicate places. [2022-11-02 21:00:49,500 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 170 transitions, 422 flow [2022-11-02 21:00:49,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.0) internal successors, (519), 3 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:49,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:49,501 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:49,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:00:49,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:00:49,726 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:49,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:49,727 INFO L85 PathProgramCache]: Analyzing trace with hash -598637021, now seen corresponding path program 1 times [2022-11-02 21:00:49,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:49,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109846641] [2022-11-02 21:00:49,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:49,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:49,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:49,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109846641] [2022-11-02 21:00:49,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109846641] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:00:49,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946367602] [2022-11-02 21:00:49,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:49,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:00:49,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:00:49,862 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:00:49,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:00:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:49,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:00:49,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:00:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:50,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:00:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:50,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946367602] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:00:50,197 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:00:50,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-02 21:00:50,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581910159] [2022-11-02 21:00:50,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:00:50,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 21:00:50,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:50,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 21:00:50,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:00:50,200 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-02 21:00:50,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 170 transitions, 422 flow. Second operand has 10 states, 10 states have (on average 168.3) internal successors, (1683), 10 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:50,202 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:50,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-02 21:00:50,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:50,565 INFO L130 PetriNetUnfolder]: 232/1316 cut-off events. [2022-11-02 21:00:50,565 INFO L131 PetriNetUnfolder]: For 997/1025 co-relation queries the response was YES. [2022-11-02 21:00:50,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2320 conditions, 1316 events. 232/1316 cut-off events. For 997/1025 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6537 event pairs, 13 based on Foata normal form. 16/1275 useless extension candidates. Maximal degree in co-relation 2312. Up to 133 conditions per place. [2022-11-02 21:00:50,585 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 62 selfloop transitions, 9 changer transitions 0/220 dead transitions. [2022-11-02 21:00:50,585 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 220 transitions, 876 flow [2022-11-02 21:00:50,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:00:50,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-02 21:00:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1533 transitions. [2022-11-02 21:00:50,589 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8825561312607945 [2022-11-02 21:00:50,589 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1533 transitions. [2022-11-02 21:00:50,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1533 transitions. [2022-11-02 21:00:50,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:50,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1533 transitions. [2022-11-02 21:00:50,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 170.33333333333334) internal successors, (1533), 9 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:50,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:50,599 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 193.0) internal successors, (1930), 10 states have internal predecessors, (1930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:50,599 INFO L175 Difference]: Start difference. First operand has 170 places, 170 transitions, 422 flow. Second operand 9 states and 1533 transitions. [2022-11-02 21:00:50,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 220 transitions, 876 flow [2022-11-02 21:00:50,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 220 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:00:50,605 INFO L231 Difference]: Finished difference. Result has 179 places, 176 transitions, 460 flow [2022-11-02 21:00:50,606 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=460, PETRI_PLACES=179, PETRI_TRANSITIONS=176} [2022-11-02 21:00:50,606 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, -11 predicate places. [2022-11-02 21:00:50,606 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 176 transitions, 460 flow [2022-11-02 21:00:50,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.3) internal successors, (1683), 10 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:50,608 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:50,608 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:50,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:00:50,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:00:50,834 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:50,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:50,835 INFO L85 PathProgramCache]: Analyzing trace with hash 327415809, now seen corresponding path program 2 times [2022-11-02 21:00:50,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:50,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474293823] [2022-11-02 21:00:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:50,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:51,093 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:51,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:51,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474293823] [2022-11-02 21:00:51,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474293823] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:00:51,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481708049] [2022-11-02 21:00:51,095 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:00:51,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:00:51,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:00:51,096 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:00:51,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:00:51,233 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 21:00:51,233 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:00:51,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-02 21:00:51,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:00:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:51,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:00:51,700 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:51,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481708049] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:00:51,700 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:00:51,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-02 21:00:51,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459755027] [2022-11-02 21:00:51,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:00:51,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-02 21:00:51,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:51,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-02 21:00:51,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:00:51,705 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-02 21:00:51,715 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 176 transitions, 460 flow. Second operand has 18 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:51,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:51,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-02 21:00:51,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:52,570 INFO L130 PetriNetUnfolder]: 392/2176 cut-off events. [2022-11-02 21:00:52,571 INFO L131 PetriNetUnfolder]: For 1508/1536 co-relation queries the response was YES. [2022-11-02 21:00:52,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3892 conditions, 2176 events. 392/2176 cut-off events. For 1508/1536 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 10489 event pairs, 13 based on Foata normal form. 26/2143 useless extension candidates. Maximal degree in co-relation 3882. Up to 213 conditions per place. [2022-11-02 21:00:52,602 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 138 selfloop transitions, 21 changer transitions 0/308 dead transitions. [2022-11-02 21:00:52,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 308 transitions, 1558 flow [2022-11-02 21:00:52,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-02 21:00:52,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-02 21:00:52,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3567 transitions. [2022-11-02 21:00:52,613 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8800888230940045 [2022-11-02 21:00:52,613 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3567 transitions. [2022-11-02 21:00:52,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3567 transitions. [2022-11-02 21:00:52,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:52,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3567 transitions. [2022-11-02 21:00:52,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 169.85714285714286) internal successors, (3567), 21 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:52,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:52,638 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 193.0) internal successors, (4246), 22 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:52,639 INFO L175 Difference]: Start difference. First operand has 179 places, 176 transitions, 460 flow. Second operand 21 states and 3567 transitions. [2022-11-02 21:00:52,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 308 transitions, 1558 flow [2022-11-02 21:00:52,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 308 transitions, 1544 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-02 21:00:52,651 INFO L231 Difference]: Finished difference. Result has 203 places, 189 transitions, 584 flow [2022-11-02 21:00:52,651 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=584, PETRI_PLACES=203, PETRI_TRANSITIONS=189} [2022-11-02 21:00:52,652 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, 13 predicate places. [2022-11-02 21:00:52,652 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 189 transitions, 584 flow [2022-11-02 21:00:52,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 168.16666666666666) internal successors, (3027), 18 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:52,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:52,654 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:52,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:00:52,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:00:52,870 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:52,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:52,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1096529341, now seen corresponding path program 3 times [2022-11-02 21:00:52,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:52,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565666312] [2022-11-02 21:00:52,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:52,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:52,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:00:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:53,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:00:53,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565666312] [2022-11-02 21:00:53,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565666312] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:00:53,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877195572] [2022-11-02 21:00:53,672 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 21:00:53,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:00:53,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:00:53,673 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:00:53,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:00:53,854 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-02 21:00:53,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:00:53,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-02 21:00:53,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:00:54,261 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:54,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:00:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:00:55,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877195572] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:00:55,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:00:55,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-11-02 21:00:55,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363863429] [2022-11-02 21:00:55,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:00:55,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-02 21:00:55,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:00:55,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-02 21:00:55,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-11-02 21:00:55,035 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-02 21:00:55,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 189 transitions, 584 flow. Second operand has 34 states, 34 states have (on average 168.08823529411765) internal successors, (5715), 34 states have internal predecessors, (5715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:55,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:00:55,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-02 21:00:55,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:00:57,368 INFO L130 PetriNetUnfolder]: 712/3896 cut-off events. [2022-11-02 21:00:57,368 INFO L131 PetriNetUnfolder]: For 4546/4574 co-relation queries the response was YES. [2022-11-02 21:00:57,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7443 conditions, 3896 events. 712/3896 cut-off events. For 4546/4574 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 18429 event pairs, 13 based on Foata normal form. 46/3883 useless extension candidates. Maximal degree in co-relation 7428. Up to 373 conditions per place. [2022-11-02 21:00:57,435 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 290 selfloop transitions, 45 changer transitions 0/484 dead transitions. [2022-11-02 21:00:57,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 484 transitions, 3090 flow [2022-11-02 21:00:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-02 21:00:57,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-02 21:00:57,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 7635 transitions. [2022-11-02 21:00:57,451 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8791018998272885 [2022-11-02 21:00:57,452 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 7635 transitions. [2022-11-02 21:00:57,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 7635 transitions. [2022-11-02 21:00:57,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:00:57,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 7635 transitions. [2022-11-02 21:00:57,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 169.66666666666666) internal successors, (7635), 45 states have internal predecessors, (7635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:57,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 193.0) internal successors, (8878), 46 states have internal predecessors, (8878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:57,491 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 193.0) internal successors, (8878), 46 states have internal predecessors, (8878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:57,491 INFO L175 Difference]: Start difference. First operand has 203 places, 189 transitions, 584 flow. Second operand 45 states and 7635 transitions. [2022-11-02 21:00:57,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 484 transitions, 3090 flow [2022-11-02 21:00:57,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 484 transitions, 3050 flow, removed 14 selfloop flow, removed 6 redundant places. [2022-11-02 21:00:57,507 INFO L231 Difference]: Finished difference. Result has 250 places, 214 transitions, 862 flow [2022-11-02 21:00:57,507 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=862, PETRI_PLACES=250, PETRI_TRANSITIONS=214} [2022-11-02 21:00:57,508 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, 60 predicate places. [2022-11-02 21:00:57,508 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 214 transitions, 862 flow [2022-11-02 21:00:57,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 168.08823529411765) internal successors, (5715), 34 states have internal predecessors, (5715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:00:57,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:00:57,511 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:00:57,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:00:57,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-02 21:00:57,726 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:00:57,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:00:57,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1622679613, now seen corresponding path program 4 times [2022-11-02 21:00:57,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:00:57,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151460972] [2022-11-02 21:00:57,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:00:57,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:00:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:01:00,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 3720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:00,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:01:00,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151460972] [2022-11-02 21:01:00,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151460972] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:01:00,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100600494] [2022-11-02 21:01:00,434 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-02 21:01:00,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:01:00,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:01:00,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:01:00,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 21:01:00,682 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-02 21:01:00,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:01:00,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-02 21:01:00,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:01:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 3720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:01,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:01:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 3720 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:01:02,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100600494] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:01:02,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:01:02,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 35 [2022-11-02 21:01:02,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506594623] [2022-11-02 21:01:02,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:01:02,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-02 21:01:02,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:01:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-02 21:01:02,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=867, Unknown=0, NotChecked=0, Total=1190 [2022-11-02 21:01:02,827 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 193 [2022-11-02 21:01:02,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 214 transitions, 862 flow. Second operand has 35 states, 35 states have (on average 168.0857142857143) internal successors, (5883), 35 states have internal predecessors, (5883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:02,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:01:02,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 193 [2022-11-02 21:01:02,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:01:05,280 INFO L130 PetriNetUnfolder]: 752/4111 cut-off events. [2022-11-02 21:01:05,280 INFO L131 PetriNetUnfolder]: For 5345/5373 co-relation queries the response was YES. [2022-11-02 21:01:05,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8163 conditions, 4111 events. 752/4111 cut-off events. For 5345/5373 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 19669 event pairs, 13 based on Foata normal form. 11/4063 useless extension candidates. Maximal degree in co-relation 8139. Up to 393 conditions per place. [2022-11-02 21:01:05,331 INFO L137 encePairwiseOnDemand]: 187/193 looper letters, 309 selfloop transitions, 48 changer transitions 0/506 dead transitions. [2022-11-02 21:01:05,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 506 transitions, 3390 flow [2022-11-02 21:01:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-02 21:01:05,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2022-11-02 21:01:05,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 8136 transitions. [2022-11-02 21:01:05,342 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8782383419689119 [2022-11-02 21:01:05,343 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 8136 transitions. [2022-11-02 21:01:05,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 8136 transitions. [2022-11-02 21:01:05,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:01:05,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 8136 transitions. [2022-11-02 21:01:05,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 169.5) internal successors, (8136), 48 states have internal predecessors, (8136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:05,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 193.0) internal successors, (9457), 49 states have internal predecessors, (9457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:05,375 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 193.0) internal successors, (9457), 49 states have internal predecessors, (9457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:05,376 INFO L175 Difference]: Start difference. First operand has 250 places, 214 transitions, 862 flow. Second operand 48 states and 8136 transitions. [2022-11-02 21:01:05,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 506 transitions, 3390 flow [2022-11-02 21:01:05,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 506 transitions, 3332 flow, removed 11 selfloop flow, removed 18 redundant places. [2022-11-02 21:01:05,397 INFO L231 Difference]: Finished difference. Result has 283 places, 218 transitions, 960 flow [2022-11-02 21:01:05,398 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=960, PETRI_PLACES=283, PETRI_TRANSITIONS=218} [2022-11-02 21:01:05,399 INFO L287 CegarLoopForPetriNet]: 190 programPoint places, 93 predicate places. [2022-11-02 21:01:05,399 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 218 transitions, 960 flow [2022-11-02 21:01:05,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 168.0857142857143) internal successors, (5883), 35 states have internal predecessors, (5883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:01:05,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:01:05,401 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:01:05,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 21:01:05,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-02 21:01:05,626 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-02 21:01:05,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:01:05,627 INFO L85 PathProgramCache]: Analyzing trace with hash 993345884, now seen corresponding path program 5 times [2022-11-02 21:01:05,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:01:05,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057967112] [2022-11-02 21:01:05,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:01:05,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:01:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:05,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 21:01:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 21:01:06,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 21:01:06,325 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 21:01:06,326 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-02 21:01:06,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-02 21:01:06,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-02 21:01:06,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-02 21:01:06,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-02 21:01:06,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-02 21:01:06,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-02 21:01:06,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-02 21:01:06,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-02 21:01:06,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-02 21:01:06,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-02 21:01:06,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-02 21:01:06,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-02 21:01:06,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-02 21:01:06,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-02 21:01:06,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-02 21:01:06,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 46 remaining) [2022-11-02 21:01:06,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 46 remaining) [2022-11-02 21:01:06,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-02 21:01:06,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-02 21:01:06,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-02 21:01:06,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-02 21:01:06,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-02 21:01:06,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-02 21:01:06,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-02 21:01:06,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2022-11-02 21:01:06,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2022-11-02 21:01:06,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-02 21:01:06,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-02 21:01:06,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-02 21:01:06,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-02 21:01:06,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-02 21:01:06,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-02 21:01:06,402 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-02 21:01:06,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err2ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-02 21:01:06,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err3ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-02 21:01:06,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err4ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-02 21:01:06,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err5ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-02 21:01:06,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-02 21:01:06,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-02 21:01:06,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-02 21:01:06,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err2ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-02 21:01:06,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err3ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-02 21:01:06,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-02 21:01:06,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-02 21:01:06,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err6ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-02 21:01:06,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 21:01:06,404 INFO L444 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:01:06,418 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:01:06,418 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:01:06,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:01:06 BasicIcfg [2022-11-02 21:01:06,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:01:06,797 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:01:06,797 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:01:06,798 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:01:06,798 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:00:44" (3/4) ... [2022-11-02 21:01:06,801 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-02 21:01:06,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:01:06,802 INFO L158 Benchmark]: Toolchain (without parser) took 24061.59ms. Allocated memory was 130.0MB in the beginning and 528.5MB in the end (delta: 398.5MB). Free memory was 93.4MB in the beginning and 272.4MB in the end (delta: -179.0MB). Peak memory consumption was 219.3MB. Max. memory is 16.1GB. [2022-11-02 21:01:06,803 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 101.3MB in the beginning and 101.3MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:01:06,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.88ms. Allocated memory is still 130.0MB. Free memory was 93.2MB in the beginning and 93.7MB in the end (delta: -517.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 21:01:06,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.55ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 91.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:01:06,804 INFO L158 Benchmark]: Boogie Preprocessor took 36.27ms. Allocated memory is still 130.0MB. Free memory was 91.6MB in the beginning and 90.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:01:06,804 INFO L158 Benchmark]: RCFGBuilder took 777.79ms. Allocated memory is still 130.0MB. Free memory was 89.5MB in the beginning and 68.6MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-02 21:01:06,804 INFO L158 Benchmark]: TraceAbstraction took 22507.82ms. Allocated memory was 130.0MB in the beginning and 528.5MB in the end (delta: 398.5MB). Free memory was 67.8MB in the beginning and 273.4MB in the end (delta: -205.6MB). Peak memory consumption was 349.8MB. Max. memory is 16.1GB. [2022-11-02 21:01:06,805 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 528.5MB. Free memory was 273.4MB in the beginning and 272.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:01:06,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 101.3MB in the beginning and 101.3MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.88ms. Allocated memory is still 130.0MB. Free memory was 93.2MB in the beginning and 93.7MB in the end (delta: -517.7kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.55ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 91.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.27ms. Allocated memory is still 130.0MB. Free memory was 91.6MB in the beginning and 90.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 777.79ms. Allocated memory is still 130.0MB. Free memory was 89.5MB in the beginning and 68.6MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 22507.82ms. Allocated memory was 130.0MB in the beginning and 528.5MB in the end (delta: 398.5MB). Free memory was 67.8MB in the beginning and 273.4MB in the end (delta: -205.6MB). Peak memory consumption was 349.8MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 528.5MB. Free memory was 273.4MB in the beginning and 272.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 725]: Data race detected Data race detected The following path leads to a data race: [L683] 0 int i, j; VAL [i=0, j=0] [L686] 0 int p, q; VAL [i=0, j=0, p=0, q=0] [L703] 0 int cur = 1, prev = 0, next = 0; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0] [L704] 0 int x; VAL [cur=1, i=0, j=0, next=0, p=0, prev=0, q=0, x=0] [L714] 0 pthread_t id1, id2; VAL [\old(argc)=1656, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=0, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L716] 0 i = 1 VAL [\old(argc)=1656, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=1, id1={5:0}, id2={3:0}, j=0, next=0, p=0, prev=0, q=0, x=0] [L719] 0 j = 1 VAL [\old(argc)=1656, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, q=0, x=0] [L721] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(argc)=1656, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id1, ((void *)0), t1, ((void *)0))=-1, q=0, x=0] [L722] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(argc)=1656, arg={0:0}, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, cur=1, i=1, id1={5:0}, id2={3:0}, j=1, next=0, p=0, prev=0, pthread_create(&id2, ((void *)0), t2, ((void *)0))=0, q=0, x=0] [L723] CALL, EXPR 0 fib() [L706] 0 x = 0 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=0, p=0, prev=0, q=0, x=0] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=0, q=0, x=0] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=0] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=1, p=0, prev=1, q=0, x=1] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=1, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=1] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=2, p=0, prev=1, q=0, x=2] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=1, q=0, x=2] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=2, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=2] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=3, p=0, prev=2, q=0, x=3] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=2, q=0, x=3] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=3, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=3] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=5, p=0, prev=3, q=0, x=4] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=3, q=0, x=4] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=5, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=4] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=8, p=0, prev=5, q=0, x=5] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=5, q=0, x=5] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=8, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=5] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=13, p=0, prev=8, q=0, x=6] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=8, q=0, x=6] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=13, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=6] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=21, p=0, prev=13, q=0, x=7] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=13, q=0, x=7] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=21, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=7] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=34, p=0, prev=21, q=0, x=8] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=21, q=0, x=8] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=34, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=8] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=55, p=0, prev=34, q=0, x=9] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=34, q=0, x=9] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=55, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=9] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=89, p=0, prev=55, q=0, x=10] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=55, q=0, x=10] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=89, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=10] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=144, p=0, prev=89, q=0, x=11] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=89, q=0, x=11] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=144, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=11] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=233, p=0, prev=144, q=0, x=12] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=377, p=0, prev=144, q=0, x=12] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=233, i=1, j=1, next=377, p=0, prev=233, q=0, x=12] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=12] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=377, p=0, prev=233, q=0, x=13] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=610, p=0, prev=233, q=0, x=13] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=377, i=1, j=1, next=610, p=0, prev=377, q=0, x=13] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=13] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=610, p=0, prev=377, q=0, x=14] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=987, p=0, prev=377, q=0, x=14] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=610, i=1, j=1, next=987, p=0, prev=610, q=0, x=14] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=14] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L706] COND TRUE 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L707] EXPR 0 prev + cur VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=987, p=0, prev=610, q=0, x=15] [L707] 0 next = prev + cur VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=1597, p=0, prev=610, q=0, x=15] [L708] 0 prev = cur VAL [arg={0:0}, arg={0:0}, cur=987, i=1, j=1, next=1597, p=0, prev=987, q=0, x=15] [L709] 0 cur = next VAL [arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=15] [L706] 0 x++ VAL [arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] 0 x < 16 VAL [arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L706] COND FALSE 0 !(x < 16) VAL [arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L711] 0 return prev; VAL [\result=987, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L723] RET, EXPR 0 fib() [L723] 0 int correct = fib(); VAL [\old(argc)=1656, arg={0:0}, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, correct=987, cur=1597, fib()=987, i=1, id1={5:0}, id2={3:0}, j=1, next=1597, p=0, prev=987, q=0, x=16] [L725] 0 i < correct VAL [\old(argc)=1656, arg={0:0}, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, correct=987, cur=1597, i=1, id1={5:0}, id2={3:0}, j=1, next=1597, p=0, prev=987, q=0, x=16] [L688] 1 p = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L688] 1 p < 7 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L688] COND TRUE 1 p < 7 VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=1, j=1, next=1597, p=0, prev=987, q=0, x=16] [L690] EXPR 1 i + j [L690] 1 i = i + j VAL [arg={0:0}, arg={0:0}, arg={0:0}, cur=1597, i=2, j=1, next=1597, p=0, prev=987, q=0, x=16] [L725] 0 i < correct VAL [\old(argc)=1656, arg={0:0}, arg={0:0}, arg={0:0}, argc=1656, argv={1644:1600}, argv={1644:1600}, correct=987, cur=1597, i=2, id1={5:0}, id2={3:0}, j=1, next=1597, p=0, prev=987, q=0, x=16] Now there is a data race on ~i~0 between C: i = i + j [690] and C: i < correct [725] - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 46 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: 21.9s, OverallIterations: 24, TraceHistogramMax: 17, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1034 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1034 mSDsluCounter, 233 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 407 mSDsCounter, 135 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 911 IncrementalHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 135 mSolverCounterUnsat, 152 mSDtfsCounter, 911 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2756 GetRequests, 2538 SyntacticMatches, 31 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2620 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=960occurred in iteration=23, InterpolantAutomatonStates: 179, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 4314 NumberOfCodeBlocks, 4314 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 4844 ConstructedInterpolants, 0 QuantifiedInterpolants, 10688 SizeOfPredicates, 52 NumberOfNonLiveVariables, 2700 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 33 InterpolantComputations, 19 PerfectInterpolantSequences, 6/13791 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-02 21:01:07,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dcf392-9a7e-407d-be70-5dcb5cc9a7f1/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE