./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/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_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/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_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/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 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d --- 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 19:54:05,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 19:54:05,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 19:54:05,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 19:54:05,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 19:54:05,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 19:54:05,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 19:54:05,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 19:54:05,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 19:54:05,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 19:54:05,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 19:54:05,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 19:54:05,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 19:54:05,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 19:54:05,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 19:54:05,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 19:54:05,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 19:54:05,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 19:54:05,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 19:54:05,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 19:54:05,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 19:54:05,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 19:54:05,450 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 19:54:05,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 19:54:05,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 19:54:05,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 19:54:05,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 19:54:05,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 19:54:05,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 19:54:05,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 19:54:05,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 19:54:05,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 19:54:05,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 19:54:05,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 19:54:05,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 19:54:05,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 19:54:05,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 19:54:05,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 19:54:05,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 19:54:05,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 19:54:05,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 19:54:05,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 19:54:05,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 19:54:05,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 19:54:05,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 19:54:05,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 19:54:05,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 19:54:05,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 19:54:05,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 19:54:05,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 19:54:05,535 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 19:54:05,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 19:54:05,537 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 19:54:05,537 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 19:54:05,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 19:54:05,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 19:54:05,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 19:54:05,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 19:54:05,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 19:54:05,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 19:54:05,538 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 19:54:05,539 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 19:54:05,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 19:54:05,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 19:54:05,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 19:54:05,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 19:54:05,540 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 19:54:05,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 19:54:05,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:54:05,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 19:54:05,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 19:54:05,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 19:54:05,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 19:54:05,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 19:54:05,544 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 19:54:05,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 19:54:05,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 19:54:05,545 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_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d [2022-11-02 19:54:05,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 19:54:05,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 19:54:05,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 19:54:05,883 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 19:54:05,884 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 19:54:05,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2022-11-02 19:54:05,979 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/data/d60ded8ec/43242d4e1eaa47039743de4fdec38372/FLAGc72b32ece [2022-11-02 19:54:06,639 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 19:54:06,640 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2022-11-02 19:54:06,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/data/d60ded8ec/43242d4e1eaa47039743de4fdec38372/FLAGc72b32ece [2022-11-02 19:54:06,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/data/d60ded8ec/43242d4e1eaa47039743de4fdec38372 [2022-11-02 19:54:06,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 19:54:06,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 19:54:07,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 19:54:07,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 19:54:07,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 19:54:07,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:54:06" (1/1) ... [2022-11-02 19:54:07,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30fa3276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07, skipping insertion in model container [2022-11-02 19:54:07,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:54:06" (1/1) ... [2022-11-02 19:54:07,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 19:54:07,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 19:54:07,286 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-11-02 19:54:07,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:54:07,297 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 19:54:07,337 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_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-11-02 19:54:07,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:54:07,356 INFO L208 MainTranslator]: Completed translation [2022-11-02 19:54:07,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07 WrapperNode [2022-11-02 19:54:07,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 19:54:07,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 19:54:07,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 19:54:07,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 19:54:07,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,423 INFO L138 Inliner]: procedures = 23, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 408 [2022-11-02 19:54:07,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 19:54:07,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 19:54:07,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 19:54:07,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 19:54:07,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,479 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 19:54:07,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 19:54:07,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 19:54:07,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 19:54:07,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (1/1) ... [2022-11-02 19:54:07,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:54:07,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:54:07,586 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 19:54:07,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_297a5cb9-25a5-423d-9a88-0ad0fdd97e88/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 19:54:07,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 19:54:07,654 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 19:54:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 19:54:07,655 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 19:54:07,655 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 19:54:07,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 19:54:07,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 19:54:07,658 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-02 19:54:07,658 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-02 19:54:07,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 19:54:07,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 19:54:07,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 19:54:07,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-02 19:54:07,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-02 19:54:07,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 19:54:07,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 19:54:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 19:54:07,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 19:54:07,662 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 19:54:07,853 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 19:54:07,856 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 19:54:08,570 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 19:54:08,884 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 19:54:08,884 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 19:54:08,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:54:08 BoogieIcfgContainer [2022-11-02 19:54:08,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 19:54:08,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 19:54:08,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 19:54:08,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 19:54:08,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:54:06" (1/3) ... [2022-11-02 19:54:08,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49769ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:54:08, skipping insertion in model container [2022-11-02 19:54:08,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:54:07" (2/3) ... [2022-11-02 19:54:08,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49769ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:54:08, skipping insertion in model container [2022-11-02 19:54:08,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:54:08" (3/3) ... [2022-11-02 19:54:08,898 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2022-11-02 19:54:08,909 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 19:54:08,922 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 19:54:08,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2022-11-02 19:54:08,923 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 19:54:09,055 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 19:54:09,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 284 transitions, 600 flow [2022-11-02 19:54:09,267 INFO L130 PetriNetUnfolder]: 5/280 cut-off events. [2022-11-02 19:54:09,267 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 19:54:09,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 280 events. 5/280 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 294 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 206. Up to 2 conditions per place. [2022-11-02 19:54:09,271 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 284 transitions, 600 flow [2022-11-02 19:54:09,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 267 places, 258 transitions, 540 flow [2022-11-02 19:54:09,291 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:54:09,298 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;@77cf958f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:54:09,299 INFO L358 AbstractCegarLoop]: Starting to check reachability of 109 error locations. [2022-11-02 19:54:09,306 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-02 19:54:09,306 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 19:54:09,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:09,307 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] [2022-11-02 19:54:09,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:09,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:09,314 INFO L85 PathProgramCache]: Analyzing trace with hash 586584571, now seen corresponding path program 1 times [2022-11-02 19:54:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:09,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111704290] [2022-11-02 19:54:09,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:09,630 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 19:54:09,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:09,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111704290] [2022-11-02 19:54:09,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111704290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:09,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:09,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:09,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070584584] [2022-11-02 19:54:09,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:09,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:09,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:09,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:09,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:09,694 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-02 19:54:09,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 258 transitions, 540 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:09,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:09,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-02 19:54:09,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:11,359 INFO L130 PetriNetUnfolder]: 2442/4251 cut-off events. [2022-11-02 19:54:11,359 INFO L131 PetriNetUnfolder]: For 675/1134 co-relation queries the response was YES. [2022-11-02 19:54:11,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8323 conditions, 4251 events. 2442/4251 cut-off events. For 675/1134 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24922 event pairs, 2439 based on Foata normal form. 1/4123 useless extension candidates. Maximal degree in co-relation 7924. Up to 3535 conditions per place. [2022-11-02 19:54:11,425 INFO L137 encePairwiseOnDemand]: 237/284 looper letters, 28 selfloop transitions, 2 changer transitions 1/213 dead transitions. [2022-11-02 19:54:11,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 213 transitions, 510 flow [2022-11-02 19:54:11,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:11,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2022-11-02 19:54:11,457 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8169014084507042 [2022-11-02 19:54:11,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 696 transitions. [2022-11-02 19:54:11,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 696 transitions. [2022-11-02 19:54:11,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:11,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 696 transitions. [2022-11-02 19:54:11,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:11,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:11,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:11,493 INFO L175 Difference]: Start difference. First operand has 267 places, 258 transitions, 540 flow. Second operand 3 states and 696 transitions. [2022-11-02 19:54:11,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 213 transitions, 510 flow [2022-11-02 19:54:11,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 213 transitions, 494 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-02 19:54:11,510 INFO L231 Difference]: Finished difference. Result has 217 places, 212 transitions, 436 flow [2022-11-02 19:54:11,513 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=217, PETRI_TRANSITIONS=212} [2022-11-02 19:54:11,521 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -50 predicate places. [2022-11-02 19:54:11,521 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 212 transitions, 436 flow [2022-11-02 19:54:11,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:11,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:11,523 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] [2022-11-02 19:54:11,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 19:54:11,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:11,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:11,525 INFO L85 PathProgramCache]: Analyzing trace with hash 908172581, now seen corresponding path program 1 times [2022-11-02 19:54:11,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:11,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071249090] [2022-11-02 19:54:11,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:11,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:11,702 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 19:54:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:11,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071249090] [2022-11-02 19:54:11,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071249090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:11,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:11,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:11,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118102671] [2022-11-02 19:54:11,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:11,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:11,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:11,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:11,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:11,710 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-02 19:54:11,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 212 transitions, 436 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:11,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:11,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-02 19:54:11,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:12,861 INFO L130 PetriNetUnfolder]: 2442/4249 cut-off events. [2022-11-02 19:54:12,861 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-02 19:54:12,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7977 conditions, 4249 events. 2442/4249 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25050 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7940. Up to 3535 conditions per place. [2022-11-02 19:54:12,907 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 28 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-11-02 19:54:12,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 211 transitions, 494 flow [2022-11-02 19:54:12,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-02 19:54:12,910 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7652582159624414 [2022-11-02 19:54:12,910 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-02 19:54:12,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-02 19:54:12,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:12,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-02 19:54:12,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:12,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:12,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:12,917 INFO L175 Difference]: Start difference. First operand has 217 places, 212 transitions, 436 flow. Second operand 3 states and 652 transitions. [2022-11-02 19:54:12,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 211 transitions, 494 flow [2022-11-02 19:54:12,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 211 transitions, 490 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:54:12,924 INFO L231 Difference]: Finished difference. Result has 215 places, 211 transitions, 434 flow [2022-11-02 19:54:12,924 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=215, PETRI_TRANSITIONS=211} [2022-11-02 19:54:12,925 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -52 predicate places. [2022-11-02 19:54:12,925 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 211 transitions, 434 flow [2022-11-02 19:54:12,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:12,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:12,927 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 19:54:12,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 19:54:12,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:12,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:12,928 INFO L85 PathProgramCache]: Analyzing trace with hash -164532754, now seen corresponding path program 1 times [2022-11-02 19:54:12,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:12,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225554732] [2022-11-02 19:54:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:12,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:12,983 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 19:54:12,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:12,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225554732] [2022-11-02 19:54:12,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225554732] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:12,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:12,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:12,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509784778] [2022-11-02 19:54:12,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:12,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:12,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:12,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:12,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:12,988 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-02 19:54:12,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 211 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:12,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:12,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-02 19:54:12,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:13,939 INFO L130 PetriNetUnfolder]: 2442/4248 cut-off events. [2022-11-02 19:54:13,939 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-02 19:54:13,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 4248 events. 2442/4248 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25089 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7932. Up to 3535 conditions per place. [2022-11-02 19:54:13,978 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 28 selfloop transitions, 2 changer transitions 0/210 dead transitions. [2022-11-02 19:54:13,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 210 transitions, 492 flow [2022-11-02 19:54:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:13,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-02 19:54:13,981 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7652582159624414 [2022-11-02 19:54:13,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-02 19:54:13,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-02 19:54:13,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:13,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-02 19:54:13,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:13,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:13,988 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:13,988 INFO L175 Difference]: Start difference. First operand has 215 places, 211 transitions, 434 flow. Second operand 3 states and 652 transitions. [2022-11-02 19:54:13,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 210 transitions, 492 flow [2022-11-02 19:54:13,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 210 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:54:13,995 INFO L231 Difference]: Finished difference. Result has 214 places, 210 transitions, 432 flow [2022-11-02 19:54:13,996 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=214, PETRI_TRANSITIONS=210} [2022-11-02 19:54:13,997 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -53 predicate places. [2022-11-02 19:54:13,997 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 210 transitions, 432 flow [2022-11-02 19:54:13,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:13,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:13,998 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 19:54:13,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 19:54:13,999 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:14,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:14,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1333568690, now seen corresponding path program 1 times [2022-11-02 19:54:14,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:14,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348747702] [2022-11-02 19:54:14,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:14,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:14,069 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 19:54:14,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:14,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348747702] [2022-11-02 19:54:14,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348747702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:14,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:14,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:14,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330262256] [2022-11-02 19:54:14,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:14,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:14,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:14,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:14,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:14,074 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-02 19:54:14,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 210 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:14,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:14,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-02 19:54:14,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:15,065 INFO L130 PetriNetUnfolder]: 2442/4247 cut-off events. [2022-11-02 19:54:15,066 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-02 19:54:15,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7975 conditions, 4247 events. 2442/4247 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25077 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7924. Up to 3535 conditions per place. [2022-11-02 19:54:15,110 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 28 selfloop transitions, 2 changer transitions 0/209 dead transitions. [2022-11-02 19:54:15,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 209 transitions, 490 flow [2022-11-02 19:54:15,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:15,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-02 19:54:15,117 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7652582159624414 [2022-11-02 19:54:15,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-02 19:54:15,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-02 19:54:15,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:15,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-02 19:54:15,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:15,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:15,124 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:15,125 INFO L175 Difference]: Start difference. First operand has 214 places, 210 transitions, 432 flow. Second operand 3 states and 652 transitions. [2022-11-02 19:54:15,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 209 transitions, 490 flow [2022-11-02 19:54:15,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 209 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:54:15,136 INFO L231 Difference]: Finished difference. Result has 213 places, 209 transitions, 430 flow [2022-11-02 19:54:15,136 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=213, PETRI_TRANSITIONS=209} [2022-11-02 19:54:15,138 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -54 predicate places. [2022-11-02 19:54:15,138 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 209 transitions, 430 flow [2022-11-02 19:54:15,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:15,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:15,139 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] [2022-11-02 19:54:15,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 19:54:15,140 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:15,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:15,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2126199649, now seen corresponding path program 1 times [2022-11-02 19:54:15,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:15,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586665447] [2022-11-02 19:54:15,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:15,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:54:15,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:15,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586665447] [2022-11-02 19:54:15,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586665447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:15,231 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:15,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:15,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312905402] [2022-11-02 19:54:15,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:15,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:15,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:15,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:15,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:15,234 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 284 [2022-11-02 19:54:15,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 209 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:15,236 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:15,236 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 284 [2022-11-02 19:54:15,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:16,140 INFO L130 PetriNetUnfolder]: 2442/4246 cut-off events. [2022-11-02 19:54:16,141 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-02 19:54:16,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7983 conditions, 4246 events. 2442/4246 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25040 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7925. Up to 3544 conditions per place. [2022-11-02 19:54:16,182 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 37 selfloop transitions, 2 changer transitions 0/208 dead transitions. [2022-11-02 19:54:16,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 208 transitions, 506 flow [2022-11-02 19:54:16,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:16,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:16,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 634 transitions. [2022-11-02 19:54:16,185 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.744131455399061 [2022-11-02 19:54:16,185 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 634 transitions. [2022-11-02 19:54:16,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 634 transitions. [2022-11-02 19:54:16,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:16,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 634 transitions. [2022-11-02 19:54:16,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:16,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:16,343 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:16,344 INFO L175 Difference]: Start difference. First operand has 213 places, 209 transitions, 430 flow. Second operand 3 states and 634 transitions. [2022-11-02 19:54:16,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 208 transitions, 506 flow [2022-11-02 19:54:16,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 208 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:54:16,347 INFO L231 Difference]: Finished difference. Result has 212 places, 208 transitions, 428 flow [2022-11-02 19:54:16,348 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=212, PETRI_TRANSITIONS=208} [2022-11-02 19:54:16,349 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -55 predicate places. [2022-11-02 19:54:16,349 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 208 transitions, 428 flow [2022-11-02 19:54:16,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:16,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:16,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:54:16,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 19:54:16,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:16,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:16,351 INFO L85 PathProgramCache]: Analyzing trace with hash -438653172, now seen corresponding path program 1 times [2022-11-02 19:54:16,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:16,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639410827] [2022-11-02 19:54:16,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:16,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:16,403 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 19:54:16,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:16,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639410827] [2022-11-02 19:54:16,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639410827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:16,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:16,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:16,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84935763] [2022-11-02 19:54:16,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:16,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:16,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:16,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:16,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:16,407 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2022-11-02 19:54:16,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 208 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:16,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:16,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2022-11-02 19:54:16,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:17,321 INFO L130 PetriNetUnfolder]: 2442/4245 cut-off events. [2022-11-02 19:54:17,321 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-02 19:54:17,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 4245 events. 2442/4245 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25065 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7911. Up to 3538 conditions per place. [2022-11-02 19:54:17,349 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 31 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2022-11-02 19:54:17,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 207 transitions, 492 flow [2022-11-02 19:54:17,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:17,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:17,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2022-11-02 19:54:17,352 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7582159624413145 [2022-11-02 19:54:17,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 646 transitions. [2022-11-02 19:54:17,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 646 transitions. [2022-11-02 19:54:17,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:17,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 646 transitions. [2022-11-02 19:54:17,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:17,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:17,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:17,357 INFO L175 Difference]: Start difference. First operand has 212 places, 208 transitions, 428 flow. Second operand 3 states and 646 transitions. [2022-11-02 19:54:17,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 207 transitions, 492 flow [2022-11-02 19:54:17,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 207 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:54:17,362 INFO L231 Difference]: Finished difference. Result has 211 places, 207 transitions, 426 flow [2022-11-02 19:54:17,362 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=211, PETRI_TRANSITIONS=207} [2022-11-02 19:54:17,364 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -56 predicate places. [2022-11-02 19:54:17,365 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 207 transitions, 426 flow [2022-11-02 19:54:17,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:17,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:17,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:54:17,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 19:54:17,367 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:17,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:17,367 INFO L85 PathProgramCache]: Analyzing trace with hash 41560757, now seen corresponding path program 1 times [2022-11-02 19:54:17,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:17,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34351093] [2022-11-02 19:54:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:17,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:17,462 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 19:54:17,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:17,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34351093] [2022-11-02 19:54:17,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34351093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:17,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:17,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:17,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892576168] [2022-11-02 19:54:17,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:17,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:17,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:17,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:17,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:17,466 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2022-11-02 19:54:17,467 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 207 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:17,467 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:17,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2022-11-02 19:54:17,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:18,374 INFO L130 PetriNetUnfolder]: 2442/4244 cut-off events. [2022-11-02 19:54:18,375 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-02 19:54:18,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7975 conditions, 4244 events. 2442/4244 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24984 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7903. Up to 3538 conditions per place. [2022-11-02 19:54:18,420 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 31 selfloop transitions, 2 changer transitions 0/206 dead transitions. [2022-11-02 19:54:18,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 206 transitions, 490 flow [2022-11-02 19:54:18,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:18,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2022-11-02 19:54:18,424 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7582159624413145 [2022-11-02 19:54:18,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 646 transitions. [2022-11-02 19:54:18,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 646 transitions. [2022-11-02 19:54:18,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:18,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 646 transitions. [2022-11-02 19:54:18,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:18,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:18,430 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:18,431 INFO L175 Difference]: Start difference. First operand has 211 places, 207 transitions, 426 flow. Second operand 3 states and 646 transitions. [2022-11-02 19:54:18,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 206 transitions, 490 flow [2022-11-02 19:54:18,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 206 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:54:18,437 INFO L231 Difference]: Finished difference. Result has 210 places, 206 transitions, 424 flow [2022-11-02 19:54:18,438 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=210, PETRI_TRANSITIONS=206} [2022-11-02 19:54:18,439 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -57 predicate places. [2022-11-02 19:54:18,439 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 206 transitions, 424 flow [2022-11-02 19:54:18,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:18,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:18,440 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] [2022-11-02 19:54:18,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 19:54:18,441 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:18,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:18,442 INFO L85 PathProgramCache]: Analyzing trace with hash 205530130, now seen corresponding path program 1 times [2022-11-02 19:54:18,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:18,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174036028] [2022-11-02 19:54:18,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:18,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:18,497 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 19:54:18,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:18,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174036028] [2022-11-02 19:54:18,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174036028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:18,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:18,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:18,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251347207] [2022-11-02 19:54:18,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:18,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:18,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:18,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:18,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:18,501 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 284 [2022-11-02 19:54:18,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 206 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:18,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:18,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 284 [2022-11-02 19:54:18,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:19,541 INFO L130 PetriNetUnfolder]: 2442/4243 cut-off events. [2022-11-02 19:54:19,542 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-02 19:54:19,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 4243 events. 2442/4243 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25071 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7897. Up to 3540 conditions per place. [2022-11-02 19:54:19,580 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 33 selfloop transitions, 2 changer transitions 0/205 dead transitions. [2022-11-02 19:54:19,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 205 transitions, 492 flow [2022-11-02 19:54:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:19,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2022-11-02 19:54:19,599 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-11-02 19:54:19,599 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 639 transitions. [2022-11-02 19:54:19,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 639 transitions. [2022-11-02 19:54:19,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:19,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 639 transitions. [2022-11-02 19:54:19,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:19,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:19,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:19,616 INFO L175 Difference]: Start difference. First operand has 210 places, 206 transitions, 424 flow. Second operand 3 states and 639 transitions. [2022-11-02 19:54:19,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 205 transitions, 492 flow [2022-11-02 19:54:19,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 205 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:54:19,621 INFO L231 Difference]: Finished difference. Result has 209 places, 205 transitions, 422 flow [2022-11-02 19:54:19,621 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=209, PETRI_TRANSITIONS=205} [2022-11-02 19:54:19,622 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-02 19:54:19,622 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 205 transitions, 422 flow [2022-11-02 19:54:19,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:19,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:19,623 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 19:54:19,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 19:54:19,623 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:19,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:19,624 INFO L85 PathProgramCache]: Analyzing trace with hash -366239060, now seen corresponding path program 1 times [2022-11-02 19:54:19,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:19,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872726225] [2022-11-02 19:54:19,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:19,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:19,717 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 19:54:19,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:19,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872726225] [2022-11-02 19:54:19,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872726225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:19,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:19,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:19,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117042933] [2022-11-02 19:54:19,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:19,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:19,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:19,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:19,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:19,721 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 284 [2022-11-02 19:54:19,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 205 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:19,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:19,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 284 [2022-11-02 19:54:19,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:21,097 INFO L130 PetriNetUnfolder]: 3446/7553 cut-off events. [2022-11-02 19:54:21,097 INFO L131 PetriNetUnfolder]: For 272/2206 co-relation queries the response was YES. [2022-11-02 19:54:21,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12881 conditions, 7553 events. 3446/7553 cut-off events. For 272/2206 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 60599 event pairs, 1640 based on Foata normal form. 5/7269 useless extension candidates. Maximal degree in co-relation 12795. Up to 2848 conditions per place. [2022-11-02 19:54:21,173 INFO L137 encePairwiseOnDemand]: 272/284 looper letters, 47 selfloop transitions, 9 changer transitions 0/225 dead transitions. [2022-11-02 19:54:21,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 225 transitions, 580 flow [2022-11-02 19:54:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:21,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2022-11-02 19:54:21,176 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7769953051643192 [2022-11-02 19:54:21,177 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 662 transitions. [2022-11-02 19:54:21,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 662 transitions. [2022-11-02 19:54:21,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:21,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 662 transitions. [2022-11-02 19:54:21,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:21,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:21,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:21,184 INFO L175 Difference]: Start difference. First operand has 209 places, 205 transitions, 422 flow. Second operand 3 states and 662 transitions. [2022-11-02 19:54:21,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 225 transitions, 580 flow [2022-11-02 19:54:21,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 225 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:54:21,198 INFO L231 Difference]: Finished difference. Result has 208 places, 210 transitions, 480 flow [2022-11-02 19:54:21,199 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=480, PETRI_PLACES=208, PETRI_TRANSITIONS=210} [2022-11-02 19:54:21,201 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -59 predicate places. [2022-11-02 19:54:21,201 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 210 transitions, 480 flow [2022-11-02 19:54:21,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:21,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:21,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:54:21,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 19:54:21,203 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:21,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:21,204 INFO L85 PathProgramCache]: Analyzing trace with hash 231612809, now seen corresponding path program 1 times [2022-11-02 19:54:21,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:21,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998021142] [2022-11-02 19:54:21,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:21,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:21,315 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 19:54:21,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:21,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998021142] [2022-11-02 19:54:21,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998021142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:21,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:21,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:21,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911572842] [2022-11-02 19:54:21,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:21,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:21,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:21,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:21,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:21,332 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-02 19:54:21,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 210 transitions, 480 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:21,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:21,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-02 19:54:21,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:22,733 INFO L130 PetriNetUnfolder]: 3446/6246 cut-off events. [2022-11-02 19:54:22,733 INFO L131 PetriNetUnfolder]: For 2353/2851 co-relation queries the response was YES. [2022-11-02 19:54:22,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14882 conditions, 6246 events. 3446/6246 cut-off events. For 2353/2851 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 42387 event pairs, 2186 based on Foata normal form. 1/6068 useless extension candidates. Maximal degree in co-relation 9854. Up to 5071 conditions per place. [2022-11-02 19:54:22,785 INFO L137 encePairwiseOnDemand]: 278/284 looper letters, 39 selfloop transitions, 5 changer transitions 0/216 dead transitions. [2022-11-02 19:54:22,785 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 216 transitions, 583 flow [2022-11-02 19:54:22,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:22,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2022-11-02 19:54:22,787 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7723004694835681 [2022-11-02 19:54:22,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2022-11-02 19:54:22,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2022-11-02 19:54:22,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:22,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2022-11-02 19:54:22,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:22,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:22,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:22,792 INFO L175 Difference]: Start difference. First operand has 208 places, 210 transitions, 480 flow. Second operand 3 states and 658 transitions. [2022-11-02 19:54:22,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 216 transitions, 583 flow [2022-11-02 19:54:22,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 216 transitions, 565 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:54:22,820 INFO L231 Difference]: Finished difference. Result has 208 places, 213 transitions, 491 flow [2022-11-02 19:54:22,820 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=491, PETRI_PLACES=208, PETRI_TRANSITIONS=213} [2022-11-02 19:54:22,821 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -59 predicate places. [2022-11-02 19:54:22,821 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 213 transitions, 491 flow [2022-11-02 19:54:22,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:22,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:22,822 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:54:22,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 19:54:22,822 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:22,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:22,823 INFO L85 PathProgramCache]: Analyzing trace with hash -515389240, now seen corresponding path program 1 times [2022-11-02 19:54:22,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:22,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832160016] [2022-11-02 19:54:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:22,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:22,907 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 19:54:22,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:22,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832160016] [2022-11-02 19:54:22,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832160016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:22,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:22,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:22,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281012133] [2022-11-02 19:54:22,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:22,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:22,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:22,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:22,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:22,910 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-02 19:54:22,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 213 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:22,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:22,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-02 19:54:22,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:24,443 INFO L130 PetriNetUnfolder]: 4871/8649 cut-off events. [2022-11-02 19:54:24,444 INFO L131 PetriNetUnfolder]: For 2480/2978 co-relation queries the response was YES. [2022-11-02 19:54:24,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20717 conditions, 8649 events. 4871/8649 cut-off events. For 2480/2978 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 61153 event pairs, 3163 based on Foata normal form. 0/8407 useless extension candidates. Maximal degree in co-relation 10763. Up to 5302 conditions per place. [2022-11-02 19:54:24,524 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 69 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-11-02 19:54:24,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 242 transitions, 743 flow [2022-11-02 19:54:24,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:24,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2022-11-02 19:54:24,527 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7863849765258216 [2022-11-02 19:54:24,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2022-11-02 19:54:24,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2022-11-02 19:54:24,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:24,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2022-11-02 19:54:24,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:24,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:24,533 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:24,534 INFO L175 Difference]: Start difference. First operand has 208 places, 213 transitions, 491 flow. Second operand 3 states and 670 transitions. [2022-11-02 19:54:24,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 242 transitions, 743 flow [2022-11-02 19:54:24,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 242 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 19:54:24,541 INFO L231 Difference]: Finished difference. Result has 209 places, 213 transitions, 494 flow [2022-11-02 19:54:24,541 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=209, PETRI_TRANSITIONS=213} [2022-11-02 19:54:24,542 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-02 19:54:24,542 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 213 transitions, 494 flow [2022-11-02 19:54:24,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:24,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:24,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:54:24,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 19:54:24,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:24,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:24,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1268404796, now seen corresponding path program 1 times [2022-11-02 19:54:24,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:24,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940269851] [2022-11-02 19:54:24,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:24,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:24,607 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 19:54:24,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:24,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940269851] [2022-11-02 19:54:24,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940269851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:24,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:24,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:54:24,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018546659] [2022-11-02 19:54:24,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:24,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:54:24,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:24,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:54:24,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:54:24,611 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2022-11-02 19:54:24,612 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 213 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:24,612 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:24,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2022-11-02 19:54:24,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:26,450 INFO L130 PetriNetUnfolder]: 6053/10489 cut-off events. [2022-11-02 19:54:26,451 INFO L131 PetriNetUnfolder]: For 3395/4032 co-relation queries the response was YES. [2022-11-02 19:54:26,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26013 conditions, 10489 events. 6053/10489 cut-off events. For 3395/4032 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 73930 event pairs, 3785 based on Foata normal form. 1/10125 useless extension candidates. Maximal degree in co-relation 18234. Up to 7524 conditions per place. [2022-11-02 19:54:26,547 INFO L137 encePairwiseOnDemand]: 277/284 looper letters, 64 selfloop transitions, 4 changer transitions 3/238 dead transitions. [2022-11-02 19:54:26,547 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 238 transitions, 726 flow [2022-11-02 19:54:26,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:54:26,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:54:26,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions. [2022-11-02 19:54:26,550 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.778169014084507 [2022-11-02 19:54:26,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 663 transitions. [2022-11-02 19:54:26,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 663 transitions. [2022-11-02 19:54:26,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:26,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 663 transitions. [2022-11-02 19:54:26,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:26,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:26,555 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:26,555 INFO L175 Difference]: Start difference. First operand has 209 places, 213 transitions, 494 flow. Second operand 3 states and 663 transitions. [2022-11-02 19:54:26,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 238 transitions, 726 flow [2022-11-02 19:54:26,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 238 transitions, 723 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 19:54:26,562 INFO L231 Difference]: Finished difference. Result has 209 places, 211 transitions, 505 flow [2022-11-02 19:54:26,562 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=505, PETRI_PLACES=209, PETRI_TRANSITIONS=211} [2022-11-02 19:54:26,563 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-02 19:54:26,563 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 211 transitions, 505 flow [2022-11-02 19:54:26,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:26,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:26,564 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:54:26,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 19:54:26,564 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash 228408117, now seen corresponding path program 1 times [2022-11-02 19:54:26,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:26,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34388868] [2022-11-02 19:54:26,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:26,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:27,292 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 19:54:27,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:27,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34388868] [2022-11-02 19:54:27,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34388868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:27,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:27,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 19:54:27,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311991666] [2022-11-02 19:54:27,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:27,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 19:54:27,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:27,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 19:54:27,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 19:54:27,296 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 284 [2022-11-02 19:54:27,297 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 211 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:27,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:27,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 284 [2022-11-02 19:54:27,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:37,555 INFO L130 PetriNetUnfolder]: 47225/65914 cut-off events. [2022-11-02 19:54:37,555 INFO L131 PetriNetUnfolder]: For 41300/41300 co-relation queries the response was YES. [2022-11-02 19:54:37,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179518 conditions, 65914 events. 47225/65914 cut-off events. For 41300/41300 co-relation queries the response was YES. Maximal size of possible extension queue 1822. Compared 402551 event pairs, 7597 based on Foata normal form. 0/65314 useless extension candidates. Maximal degree in co-relation 148128. Up to 23527 conditions per place. [2022-11-02 19:54:38,013 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 194 selfloop transitions, 4 changer transitions 1/342 dead transitions. [2022-11-02 19:54:38,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 342 transitions, 1433 flow [2022-11-02 19:54:38,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 19:54:38,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 19:54:38,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1218 transitions. [2022-11-02 19:54:38,017 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7147887323943662 [2022-11-02 19:54:38,018 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1218 transitions. [2022-11-02 19:54:38,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1218 transitions. [2022-11-02 19:54:38,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:38,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1218 transitions. [2022-11-02 19:54:38,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:38,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:38,027 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:38,028 INFO L175 Difference]: Start difference. First operand has 209 places, 211 transitions, 505 flow. Second operand 6 states and 1218 transitions. [2022-11-02 19:54:38,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 342 transitions, 1433 flow [2022-11-02 19:54:38,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 342 transitions, 1417 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 19:54:38,041 INFO L231 Difference]: Finished difference. Result has 209 places, 209 transitions, 505 flow [2022-11-02 19:54:38,041 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=505, PETRI_PLACES=209, PETRI_TRANSITIONS=209} [2022-11-02 19:54:38,042 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-02 19:54:38,042 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 209 transitions, 505 flow [2022-11-02 19:54:38,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:38,043 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:38,043 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:54:38,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 19:54:38,044 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:38,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash -829726871, now seen corresponding path program 1 times [2022-11-02 19:54:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:38,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85542110] [2022-11-02 19:54:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:38,573 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 19:54:38,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:38,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85542110] [2022-11-02 19:54:38,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85542110] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:38,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:38,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 19:54:38,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746101505] [2022-11-02 19:54:38,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:38,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 19:54:38,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:38,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 19:54:38,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 19:54:38,577 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 284 [2022-11-02 19:54:38,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 209 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:38,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:38,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 284 [2022-11-02 19:54:38,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:54:48,463 INFO L130 PetriNetUnfolder]: 41131/58449 cut-off events. [2022-11-02 19:54:48,463 INFO L131 PetriNetUnfolder]: For 38978/38978 co-relation queries the response was YES. [2022-11-02 19:54:48,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163436 conditions, 58449 events. 41131/58449 cut-off events. For 38978/38978 co-relation queries the response was YES. Maximal size of possible extension queue 1869. Compared 368004 event pairs, 25981 based on Foata normal form. 0/57772 useless extension candidates. Maximal degree in co-relation 55372. Up to 49614 conditions per place. [2022-11-02 19:54:48,891 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 145 selfloop transitions, 4 changer transitions 0/292 dead transitions. [2022-11-02 19:54:48,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 292 transitions, 1137 flow [2022-11-02 19:54:48,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 19:54:48,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 19:54:48,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1196 transitions. [2022-11-02 19:54:48,896 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7018779342723005 [2022-11-02 19:54:48,896 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1196 transitions. [2022-11-02 19:54:48,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1196 transitions. [2022-11-02 19:54:48,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:54:48,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1196 transitions. [2022-11-02 19:54:48,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.33333333333334) internal successors, (1196), 6 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:48,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:48,908 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:48,908 INFO L175 Difference]: Start difference. First operand has 209 places, 209 transitions, 505 flow. Second operand 6 states and 1196 transitions. [2022-11-02 19:54:48,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 292 transitions, 1137 flow [2022-11-02 19:54:48,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 292 transitions, 1130 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 19:54:48,959 INFO L231 Difference]: Finished difference. Result has 208 places, 208 transitions, 504 flow [2022-11-02 19:54:48,960 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=208, PETRI_TRANSITIONS=208} [2022-11-02 19:54:48,961 INFO L287 CegarLoopForPetriNet]: 267 programPoint places, -59 predicate places. [2022-11-02 19:54:48,961 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 208 transitions, 504 flow [2022-11-02 19:54:48,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:48,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:54:48,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:54:48,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 19:54:48,963 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-02 19:54:48,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:54:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash -869766904, now seen corresponding path program 1 times [2022-11-02 19:54:48,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:54:48,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855559712] [2022-11-02 19:54:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:54:48,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:54:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:54:50,038 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 19:54:50,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:54:50,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855559712] [2022-11-02 19:54:50,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855559712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:54:50,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:54:50,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 19:54:50,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474305973] [2022-11-02 19:54:50,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:54:50,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 19:54:50,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:54:50,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 19:54:50,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 19:54:50,043 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 284 [2022-11-02 19:54:50,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 208 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 19:54:50,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:54:50,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 284 [2022-11-02 19:54:50,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand