./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/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_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/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_8d8a01e8-a389-49ae-a902-0e88abcd7679/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 b2b2bb654bf56c4e17e833d277e8505998c0901a0fe529242a0e0db923034741 --- 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 20:26:27,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:26:27,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:26:27,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:26:27,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:26:27,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:26:27,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:26:27,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:26:27,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:26:27,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:26:27,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:26:27,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:26:27,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:26:27,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:26:27,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:26:27,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:26:27,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:26:27,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:26:27,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:26:27,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:26:27,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:26:27,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:26:27,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:26:27,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:26:27,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:26:27,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:26:27,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:26:27,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:26:27,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:26:27,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:26:27,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:26:27,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:26:27,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:26:27,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:26:27,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:26:27,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:26:27,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:26:27,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:26:27,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:26:27,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:26:27,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:26:27,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:26:27,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:26:27,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:26:27,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:26:27,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:26:27,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:26:27,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:26:27,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:26:27,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:26:27,440 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:26:27,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:26:27,441 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:26:27,442 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:26:27,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:26:27,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:26:27,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:26:27,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:26:27,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:26:27,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:26:27,444 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:26:27,444 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:26:27,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:26:27,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:26:27,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:26:27,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:26:27,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:26:27,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:26:27,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:26:27,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:26:27,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:26:27,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:26:27,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:26:27,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:26:27,448 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:26:27,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:26:27,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:26:27,449 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_8d8a01e8-a389-49ae-a902-0e88abcd7679/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2b2bb654bf56c4e17e833d277e8505998c0901a0fe529242a0e0db923034741 [2022-11-02 20:26:27,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:26:27,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:26:27,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:26:27,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:26:27,841 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:26:27,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2022-11-02 20:26:27,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/data/c79673cca/f85a98acf3f74efe830b3eddbeb277fc/FLAGca612919e [2022-11-02 20:26:28,466 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:26:28,467 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2022-11-02 20:26:28,476 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/data/c79673cca/f85a98acf3f74efe830b3eddbeb277fc/FLAGca612919e [2022-11-02 20:26:28,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/data/c79673cca/f85a98acf3f74efe830b3eddbeb277fc [2022-11-02 20:26:28,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:26:28,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:26:28,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:26:28,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:26:28,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:26:28,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:26:28" (1/1) ... [2022-11-02 20:26:28,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385e7ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:28, skipping insertion in model container [2022-11-02 20:26:28,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:26:28" (1/1) ... [2022-11-02 20:26:28,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:26:28,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:26:29,224 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_8d8a01e8-a389-49ae-a902-0e88abcd7679/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c[2975,2988] [2022-11-02 20:26:29,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:26:29,247 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:26:29,293 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_8d8a01e8-a389-49ae-a902-0e88abcd7679/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c[2975,2988] [2022-11-02 20:26:29,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:26:29,316 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:26:29,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29 WrapperNode [2022-11-02 20:26:29,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:26:29,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:26:29,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:26:29,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:26:29,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,407 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 483 [2022-11-02 20:26:29,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:26:29,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:26:29,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:26:29,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:26:29,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,467 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:26:29,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:26:29,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:26:29,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:26:29,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (1/1) ... [2022-11-02 20:26:29,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:26:29,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:26:29,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:26:29,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d8a01e8-a389-49ae-a902-0e88abcd7679/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:26:29,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:26:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:26:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:26:29,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:26:29,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:26:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:26:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:26:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:26:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:26:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:26:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:26:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:26:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:26:29,622 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 20:26:29,808 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:26:29,812 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:26:31,183 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:26:31,211 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:26:31,214 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-02 20:26:31,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:26:31 BoogieIcfgContainer [2022-11-02 20:26:31,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:26:31,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:26:31,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:26:31,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:26:31,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:26:28" (1/3) ... [2022-11-02 20:26:31,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51287d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:26:31, skipping insertion in model container [2022-11-02 20:26:31,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:26:29" (2/3) ... [2022-11-02 20:26:31,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51287d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:26:31, skipping insertion in model container [2022-11-02 20:26:31,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:26:31" (3/3) ... [2022-11-02 20:26:31,233 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-5.wvr.c [2022-11-02 20:26:31,245 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:26:31,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:26:31,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2022-11-02 20:26:31,259 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:26:31,444 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-02 20:26:31,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 643 transitions, 1302 flow [2022-11-02 20:26:31,807 INFO L130 PetriNetUnfolder]: 34/641 cut-off events. [2022-11-02 20:26:31,807 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:26:31,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 641 events. 34/641 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1893 event pairs, 0 based on Foata normal form. 0/521 useless extension candidates. Maximal degree in co-relation 507. Up to 2 conditions per place. [2022-11-02 20:26:31,827 INFO L82 GeneralOperation]: Start removeDead. Operand has 616 places, 643 transitions, 1302 flow [2022-11-02 20:26:31,850 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 623 transitions, 1258 flow [2022-11-02 20:26:31,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:26:31,891 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;@7687d9c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:26:31,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 164 error locations. [2022-11-02 20:26:31,896 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-02 20:26:31,896 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:26:31,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:31,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:31,899 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:31,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:31,907 INFO L85 PathProgramCache]: Analyzing trace with hash 670203470, now seen corresponding path program 1 times [2022-11-02 20:26:31,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:31,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161844501] [2022-11-02 20:26:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:31,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:32,187 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 20:26:32,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:32,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161844501] [2022-11-02 20:26:32,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161844501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:32,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:32,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:26:32,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448391318] [2022-11-02 20:26:32,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:32,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:26:32,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:32,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:26:32,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:26:32,301 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 643 [2022-11-02 20:26:32,313 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 623 transitions, 1258 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:32,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:32,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 643 [2022-11-02 20:26:32,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:33,168 INFO L130 PetriNetUnfolder]: 154/2488 cut-off events. [2022-11-02 20:26:33,169 INFO L131 PetriNetUnfolder]: For 56/101 co-relation queries the response was YES. [2022-11-02 20:26:33,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2692 conditions, 2488 events. 154/2488 cut-off events. For 56/101 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 17504 event pairs, 63 based on Foata normal form. 57/2009 useless extension candidates. Maximal degree in co-relation 2497. Up to 172 conditions per place. [2022-11-02 20:26:33,203 INFO L137 encePairwiseOnDemand]: 624/643 looper letters, 25 selfloop transitions, 2 changer transitions 3/606 dead transitions. [2022-11-02 20:26:33,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 606 transitions, 1278 flow [2022-11-02 20:26:33,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:26:33,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:26:33,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-02 20:26:33,239 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9512700881285641 [2022-11-02 20:26:33,240 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-02 20:26:33,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-02 20:26:33,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:33,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-02 20:26:33,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:33,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:33,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:33,315 INFO L175 Difference]: Start difference. First operand has 597 places, 623 transitions, 1258 flow. Second operand 3 states and 1835 transitions. [2022-11-02 20:26:33,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 606 transitions, 1278 flow [2022-11-02 20:26:33,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 594 places, 606 transitions, 1270 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:26:33,350 INFO L231 Difference]: Finished difference. Result has 594 places, 603 transitions, 1214 flow [2022-11-02 20:26:33,354 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=592, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1214, PETRI_PLACES=594, PETRI_TRANSITIONS=603} [2022-11-02 20:26:33,361 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -3 predicate places. [2022-11-02 20:26:33,362 INFO L495 AbstractCegarLoop]: Abstraction has has 594 places, 603 transitions, 1214 flow [2022-11-02 20:26:33,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:33,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:33,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:33,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:26:33,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash -633026369, now seen corresponding path program 1 times [2022-11-02 20:26:33,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:33,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998060516] [2022-11-02 20:26:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:33,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:33,474 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 20:26:33,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:33,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998060516] [2022-11-02 20:26:33,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998060516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:33,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:33,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:26:33,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750014721] [2022-11-02 20:26:33,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:33,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:26:33,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:33,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:26:33,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:26:33,483 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 579 out of 643 [2022-11-02 20:26:33,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 603 transitions, 1214 flow. Second operand has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:33,486 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:33,486 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 579 of 643 [2022-11-02 20:26:33,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:34,531 INFO L130 PetriNetUnfolder]: 275/3054 cut-off events. [2022-11-02 20:26:34,531 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2022-11-02 20:26:34,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3415 conditions, 3054 events. 275/3054 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 21872 event pairs, 111 based on Foata normal form. 0/2380 useless extension candidates. Maximal degree in co-relation 3384. Up to 350 conditions per place. [2022-11-02 20:26:34,598 INFO L137 encePairwiseOnDemand]: 640/643 looper letters, 43 selfloop transitions, 2 changer transitions 0/602 dead transitions. [2022-11-02 20:26:34,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 602 transitions, 1302 flow [2022-11-02 20:26:34,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:26:34,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:26:34,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1783 transitions. [2022-11-02 20:26:34,606 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9243131156039399 [2022-11-02 20:26:34,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1783 transitions. [2022-11-02 20:26:34,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1783 transitions. [2022-11-02 20:26:34,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:34,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1783 transitions. [2022-11-02 20:26:34,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:34,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:34,621 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:34,622 INFO L175 Difference]: Start difference. First operand has 594 places, 603 transitions, 1214 flow. Second operand 3 states and 1783 transitions. [2022-11-02 20:26:34,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 602 transitions, 1302 flow [2022-11-02 20:26:34,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 602 transitions, 1298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:26:34,637 INFO L231 Difference]: Finished difference. Result has 590 places, 602 transitions, 1212 flow [2022-11-02 20:26:34,638 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1208, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1212, PETRI_PLACES=590, PETRI_TRANSITIONS=602} [2022-11-02 20:26:34,639 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -7 predicate places. [2022-11-02 20:26:34,640 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 602 transitions, 1212 flow [2022-11-02 20:26:34,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 580.3333333333334) internal successors, (1741), 3 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:34,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:34,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:34,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:26:34,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:34,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:34,644 INFO L85 PathProgramCache]: Analyzing trace with hash 660505903, now seen corresponding path program 1 times [2022-11-02 20:26:34,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:34,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726341053] [2022-11-02 20:26:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:34,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:34,830 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 20:26:34,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:34,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726341053] [2022-11-02 20:26:34,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726341053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:34,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:34,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:26:34,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343132532] [2022-11-02 20:26:34,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:34,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:26:34,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:34,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:26:34,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:26:34,836 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 582 out of 643 [2022-11-02 20:26:34,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 602 transitions, 1212 flow. Second operand has 3 states, 3 states have (on average 583.3333333333334) internal successors, (1750), 3 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:34,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:34,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 582 of 643 [2022-11-02 20:26:34,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:35,605 INFO L130 PetriNetUnfolder]: 180/2509 cut-off events. [2022-11-02 20:26:35,605 INFO L131 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2022-11-02 20:26:35,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 2509 events. 180/2509 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16860 event pairs, 56 based on Foata normal form. 0/2020 useless extension candidates. Maximal degree in co-relation 2678. Up to 197 conditions per place. [2022-11-02 20:26:35,651 INFO L137 encePairwiseOnDemand]: 630/643 looper letters, 29 selfloop transitions, 1 changer transitions 0/590 dead transitions. [2022-11-02 20:26:35,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 590 transitions, 1248 flow [2022-11-02 20:26:35,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:26:35,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:26:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1788 transitions. [2022-11-02 20:26:35,656 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.926905132192846 [2022-11-02 20:26:35,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1788 transitions. [2022-11-02 20:26:35,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1788 transitions. [2022-11-02 20:26:35,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:35,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1788 transitions. [2022-11-02 20:26:35,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 596.0) internal successors, (1788), 3 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:35,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:35,671 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:35,671 INFO L175 Difference]: Start difference. First operand has 590 places, 602 transitions, 1212 flow. Second operand 3 states and 1788 transitions. [2022-11-02 20:26:35,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 590 transitions, 1248 flow [2022-11-02 20:26:35,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 590 transitions, 1244 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:26:35,738 INFO L231 Difference]: Finished difference. Result has 578 places, 590 transitions, 1186 flow [2022-11-02 20:26:35,740 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1184, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1186, PETRI_PLACES=578, PETRI_TRANSITIONS=590} [2022-11-02 20:26:35,743 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -19 predicate places. [2022-11-02 20:26:35,744 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 590 transitions, 1186 flow [2022-11-02 20:26:35,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 583.3333333333334) internal successors, (1750), 3 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:35,745 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:35,746 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 20:26:35,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:26:35,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:35,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:35,748 INFO L85 PathProgramCache]: Analyzing trace with hash 746786877, now seen corresponding path program 1 times [2022-11-02 20:26:35,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:35,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650330028] [2022-11-02 20:26:35,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:35,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:35,943 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 20:26:35,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:35,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650330028] [2022-11-02 20:26:35,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650330028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:35,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:35,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:26:35,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276749945] [2022-11-02 20:26:35,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:35,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:26:35,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:35,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:26:35,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:26:35,949 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 585 out of 643 [2022-11-02 20:26:35,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 590 transitions, 1186 flow. Second operand has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:35,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:35,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 585 of 643 [2022-11-02 20:26:35,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:36,763 INFO L130 PetriNetUnfolder]: 259/2763 cut-off events. [2022-11-02 20:26:36,764 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2022-11-02 20:26:36,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3105 conditions, 2763 events. 259/2763 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 19505 event pairs, 111 based on Foata normal form. 0/2213 useless extension candidates. Maximal degree in co-relation 3067. Up to 332 conditions per place. [2022-11-02 20:26:36,810 INFO L137 encePairwiseOnDemand]: 640/643 looper letters, 37 selfloop transitions, 2 changer transitions 0/589 dead transitions. [2022-11-02 20:26:36,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 589 transitions, 1262 flow [2022-11-02 20:26:36,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:26:36,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:26:36,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1795 transitions. [2022-11-02 20:26:36,817 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9305339554173147 [2022-11-02 20:26:36,818 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1795 transitions. [2022-11-02 20:26:36,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1795 transitions. [2022-11-02 20:26:36,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:36,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1795 transitions. [2022-11-02 20:26:36,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:36,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:36,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:36,837 INFO L175 Difference]: Start difference. First operand has 578 places, 590 transitions, 1186 flow. Second operand 3 states and 1795 transitions. [2022-11-02 20:26:36,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 589 transitions, 1262 flow [2022-11-02 20:26:36,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 589 transitions, 1261 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:26:36,857 INFO L231 Difference]: Finished difference. Result has 578 places, 589 transitions, 1187 flow [2022-11-02 20:26:36,859 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1183, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1187, PETRI_PLACES=578, PETRI_TRANSITIONS=589} [2022-11-02 20:26:36,860 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -19 predicate places. [2022-11-02 20:26:36,861 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 589 transitions, 1187 flow [2022-11-02 20:26:36,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 586.3333333333334) internal successors, (1759), 3 states have internal predecessors, (1759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:36,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:36,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:26:36,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:26:36,864 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:36,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:36,865 INFO L85 PathProgramCache]: Analyzing trace with hash 203055823, now seen corresponding path program 1 times [2022-11-02 20:26:36,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:36,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505958994] [2022-11-02 20:26:36,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:36,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:37,645 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 20:26:37,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:37,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505958994] [2022-11-02 20:26:37,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505958994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:37,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:37,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:26:37,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501156653] [2022-11-02 20:26:37,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:37,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:26:37,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:26:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:26:37,655 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 532 out of 643 [2022-11-02 20:26:37,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 589 transitions, 1187 flow. Second operand has 6 states, 6 states have (on average 533.8333333333334) internal successors, (3203), 6 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:37,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:37,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 532 of 643 [2022-11-02 20:26:37,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:45,677 INFO L130 PetriNetUnfolder]: 6442/30929 cut-off events. [2022-11-02 20:26:45,677 INFO L131 PetriNetUnfolder]: For 105/105 co-relation queries the response was YES. [2022-11-02 20:26:45,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39714 conditions, 30929 events. 6442/30929 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 367147 event pairs, 4956 based on Foata normal form. 0/24641 useless extension candidates. Maximal degree in co-relation 39677. Up to 8767 conditions per place. [2022-11-02 20:26:46,037 INFO L137 encePairwiseOnDemand]: 637/643 looper letters, 87 selfloop transitions, 5 changer transitions 0/588 dead transitions. [2022-11-02 20:26:46,038 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 582 places, 588 transitions, 1369 flow [2022-11-02 20:26:46,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:26:46,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:26:46,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3285 transitions. [2022-11-02 20:26:46,049 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8514774494556765 [2022-11-02 20:26:46,050 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3285 transitions. [2022-11-02 20:26:46,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3285 transitions. [2022-11-02 20:26:46,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:46,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3285 transitions. [2022-11-02 20:26:46,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 547.5) internal successors, (3285), 6 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,081 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,081 INFO L175 Difference]: Start difference. First operand has 578 places, 589 transitions, 1187 flow. Second operand 6 states and 3285 transitions. [2022-11-02 20:26:46,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 582 places, 588 transitions, 1369 flow [2022-11-02 20:26:46,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 588 transitions, 1365 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:26:46,100 INFO L231 Difference]: Finished difference. Result has 580 places, 588 transitions, 1191 flow [2022-11-02 20:26:46,101 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1191, PETRI_PLACES=580, PETRI_TRANSITIONS=588} [2022-11-02 20:26:46,104 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -17 predicate places. [2022-11-02 20:26:46,105 INFO L495 AbstractCegarLoop]: Abstraction has has 580 places, 588 transitions, 1191 flow [2022-11-02 20:26:46,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 533.8333333333334) internal successors, (3203), 6 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,110 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:46,111 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] [2022-11-02 20:26:46,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:26:46,112 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:46,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:46,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2125542702, now seen corresponding path program 1 times [2022-11-02 20:26:46,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:46,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342565086] [2022-11-02 20:26:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:46,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:46,219 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 20:26:46,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:46,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342565086] [2022-11-02 20:26:46,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342565086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:46,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:46,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:26:46,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552131286] [2022-11-02 20:26:46,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:46,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:26:46,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:46,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:26:46,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:26:46,230 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 643 [2022-11-02 20:26:46,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 588 transitions, 1191 flow. Second operand has 3 states, 3 states have (on average 601.6666666666666) internal successors, (1805), 3 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:46,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 643 [2022-11-02 20:26:46,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:46,771 INFO L130 PetriNetUnfolder]: 103/1906 cut-off events. [2022-11-02 20:26:46,772 INFO L131 PetriNetUnfolder]: For 12/23 co-relation queries the response was YES. [2022-11-02 20:26:46,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2017 conditions, 1906 events. 103/1906 cut-off events. For 12/23 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 11894 event pairs, 20 based on Foata normal form. 1/1563 useless extension candidates. Maximal degree in co-relation 1999. Up to 94 conditions per place. [2022-11-02 20:26:46,794 INFO L137 encePairwiseOnDemand]: 635/643 looper letters, 19 selfloop transitions, 2 changer transitions 0/585 dead transitions. [2022-11-02 20:26:46,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 585 transitions, 1228 flow [2022-11-02 20:26:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:26:46,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:26:46,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1827 transitions. [2022-11-02 20:26:46,800 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9471228615863142 [2022-11-02 20:26:46,800 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1827 transitions. [2022-11-02 20:26:46,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1827 transitions. [2022-11-02 20:26:46,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:46,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1827 transitions. [2022-11-02 20:26:46,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,814 INFO L175 Difference]: Start difference. First operand has 580 places, 588 transitions, 1191 flow. Second operand 3 states and 1827 transitions. [2022-11-02 20:26:46,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 585 transitions, 1228 flow [2022-11-02 20:26:46,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 571 places, 585 transitions, 1218 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:26:46,829 INFO L231 Difference]: Finished difference. Result has 572 places, 584 transitions, 1183 flow [2022-11-02 20:26:46,830 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1183, PETRI_PLACES=572, PETRI_TRANSITIONS=584} [2022-11-02 20:26:46,831 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -25 predicate places. [2022-11-02 20:26:46,831 INFO L495 AbstractCegarLoop]: Abstraction has has 572 places, 584 transitions, 1183 flow [2022-11-02 20:26:46,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 601.6666666666666) internal successors, (1805), 3 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:46,834 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 20:26:46,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:26:46,834 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:46,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:46,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1338338554, now seen corresponding path program 1 times [2022-11-02 20:26:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:46,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388458140] [2022-11-02 20:26:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:46,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:46,888 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 20:26:46,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:46,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388458140] [2022-11-02 20:26:46,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388458140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:46,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:46,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:26:46,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791868118] [2022-11-02 20:26:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:46,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:26:46,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:46,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:26:46,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:26:46,894 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 606 out of 643 [2022-11-02 20:26:46,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 584 transitions, 1183 flow. Second operand has 3 states, 3 states have (on average 607.0) internal successors, (1821), 3 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:46,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:46,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 606 of 643 [2022-11-02 20:26:46,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:47,525 INFO L130 PetriNetUnfolder]: 102/2724 cut-off events. [2022-11-02 20:26:47,525 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:26:47,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2791 conditions, 2724 events. 102/2724 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 20044 event pairs, 5 based on Foata normal form. 0/2242 useless extension candidates. Maximal degree in co-relation 2754. Up to 22 conditions per place. [2022-11-02 20:26:47,551 INFO L137 encePairwiseOnDemand]: 636/643 looper letters, 13 selfloop transitions, 3 changer transitions 0/581 dead transitions. [2022-11-02 20:26:47,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 581 transitions, 1210 flow [2022-11-02 20:26:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:26:47,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:26:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1838 transitions. [2022-11-02 20:26:47,558 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9528252980819077 [2022-11-02 20:26:47,558 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1838 transitions. [2022-11-02 20:26:47,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1838 transitions. [2022-11-02 20:26:47,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:47,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1838 transitions. [2022-11-02 20:26:47,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.6666666666666) internal successors, (1838), 3 states have internal predecessors, (1838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:47,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:47,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:47,582 INFO L175 Difference]: Start difference. First operand has 572 places, 584 transitions, 1183 flow. Second operand 3 states and 1838 transitions. [2022-11-02 20:26:47,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 581 transitions, 1210 flow [2022-11-02 20:26:47,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 570 places, 581 transitions, 1210 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:26:47,596 INFO L231 Difference]: Finished difference. Result has 570 places, 580 transitions, 1181 flow [2022-11-02 20:26:47,597 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1175, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1181, PETRI_PLACES=570, PETRI_TRANSITIONS=580} [2022-11-02 20:26:47,598 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -27 predicate places. [2022-11-02 20:26:47,599 INFO L495 AbstractCegarLoop]: Abstraction has has 570 places, 580 transitions, 1181 flow [2022-11-02 20:26:47,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 607.0) internal successors, (1821), 3 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:47,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:47,601 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 20:26:47,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:26:47,602 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:47,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:47,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1701451502, now seen corresponding path program 1 times [2022-11-02 20:26:47,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:47,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656919976] [2022-11-02 20:26:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:47,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:47,670 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 20:26:47,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:47,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656919976] [2022-11-02 20:26:47,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656919976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:47,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:47,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:26:47,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933054130] [2022-11-02 20:26:47,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:47,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:26:47,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:47,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:26:47,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:26:47,676 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 643 [2022-11-02 20:26:47,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 570 places, 580 transitions, 1181 flow. Second operand has 3 states, 3 states have (on average 511.3333333333333) internal successors, (1534), 3 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:47,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:47,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 643 [2022-11-02 20:26:47,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:48,139 INFO L130 PetriNetUnfolder]: 133/1430 cut-off events. [2022-11-02 20:26:48,139 INFO L131 PetriNetUnfolder]: For 84/89 co-relation queries the response was YES. [2022-11-02 20:26:48,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1786 conditions, 1430 events. 133/1430 cut-off events. For 84/89 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8947 event pairs, 27 based on Foata normal form. 2/1266 useless extension candidates. Maximal degree in co-relation 1748. Up to 222 conditions per place. [2022-11-02 20:26:48,158 INFO L137 encePairwiseOnDemand]: 596/643 looper letters, 67 selfloop transitions, 18 changer transitions 5/553 dead transitions. [2022-11-02 20:26:48,159 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 553 transitions, 1302 flow [2022-11-02 20:26:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:26:48,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:26:48,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1645 transitions. [2022-11-02 20:26:48,166 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8527734577501296 [2022-11-02 20:26:48,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1645 transitions. [2022-11-02 20:26:48,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1645 transitions. [2022-11-02 20:26:48,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:48,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1645 transitions. [2022-11-02 20:26:48,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:48,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:48,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:48,184 INFO L175 Difference]: Start difference. First operand has 570 places, 580 transitions, 1181 flow. Second operand 3 states and 1645 transitions. [2022-11-02 20:26:48,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 553 transitions, 1302 flow [2022-11-02 20:26:48,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 553 transitions, 1296 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:26:48,200 INFO L231 Difference]: Finished difference. Result has 542 places, 547 transitions, 1144 flow [2022-11-02 20:26:48,201 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1119, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1144, PETRI_PLACES=542, PETRI_TRANSITIONS=547} [2022-11-02 20:26:48,204 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -55 predicate places. [2022-11-02 20:26:48,205 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 547 transitions, 1144 flow [2022-11-02 20:26:48,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 511.3333333333333) internal successors, (1534), 3 states have internal predecessors, (1534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:48,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:48,206 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 20:26:48,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:26:48,207 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:48,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:48,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1612672808, now seen corresponding path program 1 times [2022-11-02 20:26:48,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:48,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012915564] [2022-11-02 20:26:48,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:48,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:48,668 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 20:26:48,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:48,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012915564] [2022-11-02 20:26:48,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012915564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:48,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:48,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:26:48,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437468414] [2022-11-02 20:26:48,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:48,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:26:48,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:48,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:26:48,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:26:48,676 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 537 out of 643 [2022-11-02 20:26:48,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 547 transitions, 1144 flow. Second operand has 6 states, 6 states have (on average 538.8333333333334) internal successors, (3233), 6 states have internal predecessors, (3233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:48,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:48,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 537 of 643 [2022-11-02 20:26:48,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:53,505 INFO L130 PetriNetUnfolder]: 5925/17496 cut-off events. [2022-11-02 20:26:53,505 INFO L131 PetriNetUnfolder]: For 1/5 co-relation queries the response was YES. [2022-11-02 20:26:53,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27051 conditions, 17496 events. 5925/17496 cut-off events. For 1/5 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 164615 event pairs, 1418 based on Foata normal form. 3/15163 useless extension candidates. Maximal degree in co-relation 27011. Up to 3269 conditions per place. [2022-11-02 20:26:53,638 INFO L137 encePairwiseOnDemand]: 638/643 looper letters, 319 selfloop transitions, 4 changer transitions 0/786 dead transitions. [2022-11-02 20:26:53,639 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 786 transitions, 2268 flow [2022-11-02 20:26:53,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:26:53,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:26:53,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3546 transitions. [2022-11-02 20:26:53,648 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9191290824261276 [2022-11-02 20:26:53,649 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3546 transitions. [2022-11-02 20:26:53,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3546 transitions. [2022-11-02 20:26:53,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:53,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3546 transitions. [2022-11-02 20:26:53,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 591.0) internal successors, (3546), 6 states have internal predecessors, (3546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:53,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:53,671 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:53,671 INFO L175 Difference]: Start difference. First operand has 542 places, 547 transitions, 1144 flow. Second operand 6 states and 3546 transitions. [2022-11-02 20:26:53,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 786 transitions, 2268 flow [2022-11-02 20:26:53,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 786 transitions, 2232 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:26:53,694 INFO L231 Difference]: Finished difference. Result has 539 places, 546 transitions, 1114 flow [2022-11-02 20:26:53,695 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1114, PETRI_PLACES=539, PETRI_TRANSITIONS=546} [2022-11-02 20:26:53,696 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -58 predicate places. [2022-11-02 20:26:53,696 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 546 transitions, 1114 flow [2022-11-02 20:26:53,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 538.8333333333334) internal successors, (3233), 6 states have internal predecessors, (3233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:53,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:53,698 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] [2022-11-02 20:26:53,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:26:53,699 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:53,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:53,700 INFO L85 PathProgramCache]: Analyzing trace with hash -2098529122, now seen corresponding path program 1 times [2022-11-02 20:26:53,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:53,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338174054] [2022-11-02 20:26:53,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:53,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:53,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:53,753 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 20:26:53,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:53,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338174054] [2022-11-02 20:26:53,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338174054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:53,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:53,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:26:53,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490531029] [2022-11-02 20:26:53,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:53,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:26:53,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:53,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:26:53,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:26:53,759 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 643 [2022-11-02 20:26:53,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 546 transitions, 1114 flow. Second operand has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:53,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:53,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 643 [2022-11-02 20:26:53,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:54,576 INFO L130 PetriNetUnfolder]: 174/2518 cut-off events. [2022-11-02 20:26:54,577 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-02 20:26:54,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2738 conditions, 2518 events. 174/2518 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 17309 event pairs, 19 based on Foata normal form. 0/2243 useless extension candidates. Maximal degree in co-relation 2700. Up to 180 conditions per place. [2022-11-02 20:26:54,603 INFO L137 encePairwiseOnDemand]: 627/643 looper letters, 27 selfloop transitions, 6 changer transitions 0/544 dead transitions. [2022-11-02 20:26:54,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 544 transitions, 1178 flow [2022-11-02 20:26:54,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:26:54,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:26:54,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1807 transitions. [2022-11-02 20:26:54,610 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9367547952306895 [2022-11-02 20:26:54,610 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1807 transitions. [2022-11-02 20:26:54,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1807 transitions. [2022-11-02 20:26:54,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:54,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1807 transitions. [2022-11-02 20:26:54,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:54,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:54,623 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:54,623 INFO L175 Difference]: Start difference. First operand has 539 places, 546 transitions, 1114 flow. Second operand 3 states and 1807 transitions. [2022-11-02 20:26:54,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 544 transitions, 1178 flow [2022-11-02 20:26:54,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 527 places, 544 transitions, 1171 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:26:54,636 INFO L231 Difference]: Finished difference. Result has 528 places, 542 transitions, 1129 flow [2022-11-02 20:26:54,639 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1087, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=536, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1129, PETRI_PLACES=528, PETRI_TRANSITIONS=542} [2022-11-02 20:26:54,640 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -69 predicate places. [2022-11-02 20:26:54,640 INFO L495 AbstractCegarLoop]: Abstraction has has 528 places, 542 transitions, 1129 flow [2022-11-02 20:26:54,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:54,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:54,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:26:54,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:26:54,642 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:54,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:54,643 INFO L85 PathProgramCache]: Analyzing trace with hash -831708604, now seen corresponding path program 1 times [2022-11-02 20:26:54,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:54,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291984527] [2022-11-02 20:26:54,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:54,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:54,818 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 20:26:54,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:54,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291984527] [2022-11-02 20:26:54,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291984527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:54,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:54,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:26:54,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342208977] [2022-11-02 20:26:54,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:54,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:26:54,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:54,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:26:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:26:54,825 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 643 [2022-11-02 20:26:54,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 542 transitions, 1129 flow. Second operand has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:54,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:54,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 643 [2022-11-02 20:26:54,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:26:55,807 INFO L130 PetriNetUnfolder]: 209/4026 cut-off events. [2022-11-02 20:26:55,808 INFO L131 PetriNetUnfolder]: For 2/4 co-relation queries the response was YES. [2022-11-02 20:26:55,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4328 conditions, 4026 events. 209/4026 cut-off events. For 2/4 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 31717 event pairs, 16 based on Foata normal form. 1/3591 useless extension candidates. Maximal degree in co-relation 4289. Up to 88 conditions per place. [2022-11-02 20:26:55,854 INFO L137 encePairwiseOnDemand]: 637/643 looper letters, 29 selfloop transitions, 6 changer transitions 0/559 dead transitions. [2022-11-02 20:26:55,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 559 transitions, 1237 flow [2022-11-02 20:26:55,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:26:55,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:26:55,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3061 transitions. [2022-11-02 20:26:55,866 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.952099533437014 [2022-11-02 20:26:55,866 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3061 transitions. [2022-11-02 20:26:55,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3061 transitions. [2022-11-02 20:26:55,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:26:55,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3061 transitions. [2022-11-02 20:26:55,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 612.2) internal successors, (3061), 5 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:55,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 643.0) internal successors, (3858), 6 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:55,890 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 643.0) internal successors, (3858), 6 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:55,890 INFO L175 Difference]: Start difference. First operand has 528 places, 542 transitions, 1129 flow. Second operand 5 states and 3061 transitions. [2022-11-02 20:26:55,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 559 transitions, 1237 flow [2022-11-02 20:26:55,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 559 transitions, 1237 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:26:55,908 INFO L231 Difference]: Finished difference. Result has 535 places, 546 transitions, 1167 flow [2022-11-02 20:26:55,909 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1129, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1167, PETRI_PLACES=535, PETRI_TRANSITIONS=546} [2022-11-02 20:26:55,910 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -62 predicate places. [2022-11-02 20:26:55,910 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 546 transitions, 1167 flow [2022-11-02 20:26:55,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 608.0) internal successors, (2432), 4 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:55,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:26:55,912 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] [2022-11-02 20:26:55,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:26:55,913 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:26:55,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:26:55,913 INFO L85 PathProgramCache]: Analyzing trace with hash -111871074, now seen corresponding path program 1 times [2022-11-02 20:26:55,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:26:55,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198189839] [2022-11-02 20:26:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:26:55,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:26:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:26:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:26:56,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:26:56,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198189839] [2022-11-02 20:26:56,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198189839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:26:56,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:26:56,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:26:56,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598622749] [2022-11-02 20:26:56,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:26:56,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:26:56,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:26:56,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:26:56,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:26:56,502 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 537 out of 643 [2022-11-02 20:26:56,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 546 transitions, 1167 flow. Second operand has 6 states, 6 states have (on average 539.8333333333334) internal successors, (3239), 6 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:26:56,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:26:56,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 537 of 643 [2022-11-02 20:26:56,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:27:07,629 INFO L130 PetriNetUnfolder]: 11169/48604 cut-off events. [2022-11-02 20:27:07,629 INFO L131 PetriNetUnfolder]: For 172/172 co-relation queries the response was YES. [2022-11-02 20:27:07,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66283 conditions, 48604 events. 11169/48604 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 581880 event pairs, 8680 based on Foata normal form. 0/43083 useless extension candidates. Maximal degree in co-relation 66238. Up to 14521 conditions per place. [2022-11-02 20:27:08,089 INFO L137 encePairwiseOnDemand]: 638/643 looper letters, 294 selfloop transitions, 4 changer transitions 0/761 dead transitions. [2022-11-02 20:27:08,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 761 transitions, 2193 flow [2022-11-02 20:27:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:27:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:27:08,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3521 transitions. [2022-11-02 20:27:08,100 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9126490409538621 [2022-11-02 20:27:08,101 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3521 transitions. [2022-11-02 20:27:08,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3521 transitions. [2022-11-02 20:27:08,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:08,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3521 transitions. [2022-11-02 20:27:08,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 586.8333333333334) internal successors, (3521), 6 states have internal predecessors, (3521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:08,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:08,125 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:08,125 INFO L175 Difference]: Start difference. First operand has 535 places, 546 transitions, 1167 flow. Second operand 6 states and 3521 transitions. [2022-11-02 20:27:08,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 761 transitions, 2193 flow [2022-11-02 20:27:08,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 761 transitions, 2193 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:27:08,143 INFO L231 Difference]: Finished difference. Result has 539 places, 545 transitions, 1173 flow [2022-11-02 20:27:08,144 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1173, PETRI_PLACES=539, PETRI_TRANSITIONS=545} [2022-11-02 20:27:08,145 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -58 predicate places. [2022-11-02 20:27:08,145 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 545 transitions, 1173 flow [2022-11-02 20:27:08,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 539.8333333333334) internal successors, (3239), 6 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:08,147 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:27:08,147 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] [2022-11-02 20:27:08,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:27:08,148 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:27:08,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:08,148 INFO L85 PathProgramCache]: Analyzing trace with hash 722145874, now seen corresponding path program 1 times [2022-11-02 20:27:08,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:08,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461566510] [2022-11-02 20:27:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:08,625 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 20:27:08,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:08,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461566510] [2022-11-02 20:27:08,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461566510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:08,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:08,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:27:08,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543488231] [2022-11-02 20:27:08,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:08,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:27:08,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:08,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:27:08,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:27:08,638 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 526 out of 643 [2022-11-02 20:27:08,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 545 transitions, 1173 flow. Second operand has 6 states, 6 states have (on average 528.0) internal successors, (3168), 6 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:08,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:27:08,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 526 of 643 [2022-11-02 20:27:08,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:27:20,323 INFO L130 PetriNetUnfolder]: 16126/51538 cut-off events. [2022-11-02 20:27:20,323 INFO L131 PetriNetUnfolder]: For 4834/4834 co-relation queries the response was YES. [2022-11-02 20:27:20,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82136 conditions, 51538 events. 16126/51538 cut-off events. For 4834/4834 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 574680 event pairs, 6566 based on Foata normal form. 0/46858 useless extension candidates. Maximal degree in co-relation 82090. Up to 12402 conditions per place. [2022-11-02 20:27:20,700 INFO L137 encePairwiseOnDemand]: 637/643 looper letters, 366 selfloop transitions, 6 changer transitions 0/820 dead transitions. [2022-11-02 20:27:20,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 820 transitions, 2475 flow [2022-11-02 20:27:20,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:27:20,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:27:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3526 transitions. [2022-11-02 20:27:20,710 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9139450492483152 [2022-11-02 20:27:20,711 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3526 transitions. [2022-11-02 20:27:20,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3526 transitions. [2022-11-02 20:27:20,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:20,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3526 transitions. [2022-11-02 20:27:20,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 587.6666666666666) internal successors, (3526), 6 states have internal predecessors, (3526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:20,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:20,734 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 643.0) internal successors, (4501), 7 states have internal predecessors, (4501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:20,735 INFO L175 Difference]: Start difference. First operand has 539 places, 545 transitions, 1173 flow. Second operand 6 states and 3526 transitions. [2022-11-02 20:27:20,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 820 transitions, 2475 flow [2022-11-02 20:27:20,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 820 transitions, 2468 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 20:27:20,760 INFO L231 Difference]: Finished difference. Result has 539 places, 544 transitions, 1176 flow [2022-11-02 20:27:20,761 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1164, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1176, PETRI_PLACES=539, PETRI_TRANSITIONS=544} [2022-11-02 20:27:20,762 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -58 predicate places. [2022-11-02 20:27:20,762 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 544 transitions, 1176 flow [2022-11-02 20:27:20,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 528.0) internal successors, (3168), 6 states have internal predecessors, (3168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:20,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:27:20,764 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] [2022-11-02 20:27:20,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:27:20,764 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:27:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1934675625, now seen corresponding path program 1 times [2022-11-02 20:27:20,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:20,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492832388] [2022-11-02 20:27:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:20,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:20,885 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 20:27:20,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:20,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492832388] [2022-11-02 20:27:20,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492832388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:20,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:20,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:27:20,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918705655] [2022-11-02 20:27:20,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:20,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:27:20,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:20,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:27:20,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:27:20,891 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 643 [2022-11-02 20:27:20,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 544 transitions, 1176 flow. Second operand has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:20,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:27:20,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 643 [2022-11-02 20:27:20,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:27:22,011 INFO L130 PetriNetUnfolder]: 424/3873 cut-off events. [2022-11-02 20:27:22,011 INFO L131 PetriNetUnfolder]: For 278/281 co-relation queries the response was YES. [2022-11-02 20:27:22,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5267 conditions, 3873 events. 424/3873 cut-off events. For 278/281 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 31574 event pairs, 96 based on Foata normal form. 1/3516 useless extension candidates. Maximal degree in co-relation 5222. Up to 757 conditions per place. [2022-11-02 20:27:22,045 INFO L137 encePairwiseOnDemand]: 633/643 looper letters, 144 selfloop transitions, 10 changer transitions 0/600 dead transitions. [2022-11-02 20:27:22,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 600 transitions, 1599 flow [2022-11-02 20:27:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:27:22,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:27:22,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2780 transitions. [2022-11-02 20:27:22,053 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.864696734059098 [2022-11-02 20:27:22,053 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2780 transitions. [2022-11-02 20:27:22,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2780 transitions. [2022-11-02 20:27:22,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:22,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2780 transitions. [2022-11-02 20:27:22,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 556.0) internal successors, (2780), 5 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 643.0) internal successors, (3858), 6 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,071 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 643.0) internal successors, (3858), 6 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,072 INFO L175 Difference]: Start difference. First operand has 539 places, 544 transitions, 1176 flow. Second operand 5 states and 2780 transitions. [2022-11-02 20:27:22,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 600 transitions, 1599 flow [2022-11-02 20:27:22,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 600 transitions, 1587 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:27:22,086 INFO L231 Difference]: Finished difference. Result has 541 places, 552 transitions, 1234 flow [2022-11-02 20:27:22,088 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1164, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1234, PETRI_PLACES=541, PETRI_TRANSITIONS=552} [2022-11-02 20:27:22,089 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -56 predicate places. [2022-11-02 20:27:22,089 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 552 transitions, 1234 flow [2022-11-02 20:27:22,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:27:22,090 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] [2022-11-02 20:27:22,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:27:22,091 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:27:22,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:22,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1300937771, now seen corresponding path program 1 times [2022-11-02 20:27:22,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:22,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185194415] [2022-11-02 20:27:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:22,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:22,144 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 20:27:22,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:22,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185194415] [2022-11-02 20:27:22,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185194415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:22,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:22,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:27:22,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506767959] [2022-11-02 20:27:22,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:22,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:27:22,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:22,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:27:22,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:27:22,150 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 643 [2022-11-02 20:27:22,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 552 transitions, 1234 flow. Second operand has 3 states, 3 states have (on average 607.3333333333334) internal successors, (1822), 3 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:27:22,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 643 [2022-11-02 20:27:22,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:27:22,687 INFO L130 PetriNetUnfolder]: 140/2577 cut-off events. [2022-11-02 20:27:22,687 INFO L131 PetriNetUnfolder]: For 42/44 co-relation queries the response was YES. [2022-11-02 20:27:22,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2969 conditions, 2577 events. 140/2577 cut-off events. For 42/44 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 15932 event pairs, 26 based on Foata normal form. 0/2335 useless extension candidates. Maximal degree in co-relation 2921. Up to 87 conditions per place. [2022-11-02 20:27:22,713 INFO L137 encePairwiseOnDemand]: 640/643 looper letters, 12 selfloop transitions, 2 changer transitions 0/552 dead transitions. [2022-11-02 20:27:22,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 552 transitions, 1263 flow [2022-11-02 20:27:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:27:22,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:27:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1827 transitions. [2022-11-02 20:27:22,718 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9471228615863142 [2022-11-02 20:27:22,719 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1827 transitions. [2022-11-02 20:27:22,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1827 transitions. [2022-11-02 20:27:22,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:22,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1827 transitions. [2022-11-02 20:27:22,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 609.0) internal successors, (1827), 3 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,730 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 643.0) internal successors, (2572), 4 states have internal predecessors, (2572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,730 INFO L175 Difference]: Start difference. First operand has 541 places, 552 transitions, 1234 flow. Second operand 3 states and 1827 transitions. [2022-11-02 20:27:22,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 552 transitions, 1263 flow [2022-11-02 20:27:22,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 552 transitions, 1263 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:27:22,743 INFO L231 Difference]: Finished difference. Result has 542 places, 551 transitions, 1236 flow [2022-11-02 20:27:22,745 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1232, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1236, PETRI_PLACES=542, PETRI_TRANSITIONS=551} [2022-11-02 20:27:22,745 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -55 predicate places. [2022-11-02 20:27:22,746 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 551 transitions, 1236 flow [2022-11-02 20:27:22,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 607.3333333333334) internal successors, (1822), 3 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:27:22,747 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] [2022-11-02 20:27:22,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:27:22,748 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err42ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:27:22,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:22,748 INFO L85 PathProgramCache]: Analyzing trace with hash 56641217, now seen corresponding path program 1 times [2022-11-02 20:27:22,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:22,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839386972] [2022-11-02 20:27:22,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:22,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:22,864 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 20:27:22,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:22,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839386972] [2022-11-02 20:27:22,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839386972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:22,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:22,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:27:22,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570207945] [2022-11-02 20:27:22,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:22,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:27:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:27:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:27:22,870 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 525 out of 643 [2022-11-02 20:27:22,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 551 transitions, 1236 flow. Second operand has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:22,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:27:22,873 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 525 of 643 [2022-11-02 20:27:22,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:27:24,159 INFO L130 PetriNetUnfolder]: 421/3863 cut-off events. [2022-11-02 20:27:24,159 INFO L131 PetriNetUnfolder]: For 354/356 co-relation queries the response was YES. [2022-11-02 20:27:24,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5368 conditions, 3863 events. 421/3863 cut-off events. For 354/356 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 31331 event pairs, 98 based on Foata normal form. 0/3527 useless extension candidates. Maximal degree in co-relation 5318. Up to 757 conditions per place. [2022-11-02 20:27:24,187 INFO L137 encePairwiseOnDemand]: 633/643 looper letters, 144 selfloop transitions, 10 changer transitions 0/600 dead transitions. [2022-11-02 20:27:24,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 600 transitions, 1645 flow [2022-11-02 20:27:24,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:27:24,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:27:24,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2780 transitions. [2022-11-02 20:27:24,195 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.864696734059098 [2022-11-02 20:27:24,195 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2780 transitions. [2022-11-02 20:27:24,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2780 transitions. [2022-11-02 20:27:24,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:27:24,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2780 transitions. [2022-11-02 20:27:24,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 556.0) internal successors, (2780), 5 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:24,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 643.0) internal successors, (3858), 6 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:24,210 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 643.0) internal successors, (3858), 6 states have internal predecessors, (3858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:24,210 INFO L175 Difference]: Start difference. First operand has 542 places, 551 transitions, 1236 flow. Second operand 5 states and 2780 transitions. [2022-11-02 20:27:24,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 600 transitions, 1645 flow [2022-11-02 20:27:24,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 600 transitions, 1641 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:27:24,225 INFO L231 Difference]: Finished difference. Result has 547 places, 554 transitions, 1282 flow [2022-11-02 20:27:24,226 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=643, PETRI_DIFFERENCE_MINUEND_FLOW=1232, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=551, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1282, PETRI_PLACES=547, PETRI_TRANSITIONS=554} [2022-11-02 20:27:24,227 INFO L287 CegarLoopForPetriNet]: 597 programPoint places, -50 predicate places. [2022-11-02 20:27:24,228 INFO L495 AbstractCegarLoop]: Abstraction has has 547 places, 554 transitions, 1282 flow [2022-11-02 20:27:24,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 528.25) internal successors, (2113), 4 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:24,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:27:24,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:27:24,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:27:24,229 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 160 more)] === [2022-11-02 20:27:24,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:27:24,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1020938330, now seen corresponding path program 1 times [2022-11-02 20:27:24,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:27:24,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344532624] [2022-11-02 20:27:24,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:27:24,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:27:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:27:24,667 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 20:27:24,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:27:24,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344532624] [2022-11-02 20:27:24,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344532624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:27:24,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:27:24,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:27:24,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048951615] [2022-11-02 20:27:24,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:27:24,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:27:24,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:27:24,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:27:24,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:27:24,674 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 502 out of 643 [2022-11-02 20:27:24,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 554 transitions, 1282 flow. Second operand has 6 states, 6 states have (on average 504.1666666666667) internal successors, (3025), 6 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:27:24,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:27:24,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 502 of 643 [2022-11-02 20:27:24,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand