./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa --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 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:36:23,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:36:23,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:36:23,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:36:23,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:36:23,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:36:23,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:36:23,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:36:23,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:36:23,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:36:23,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:36:23,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:36:23,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:36:23,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:36:23,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:36:23,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:36:23,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:36:23,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:36:23,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:36:23,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:36:23,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:36:23,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:36:23,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:36:23,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:36:23,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:36:23,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:36:23,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:36:23,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:36:23,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:36:23,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:36:23,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:36:23,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:36:23,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:36:23,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:36:23,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:36:23,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:36:23,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:36:23,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:36:23,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:36:23,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:36:23,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:36:23,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 19:36:23,482 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:36:23,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:36:23,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:36:23,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:36:23,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:36:23,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:36:23,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:36:23,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:36:23,484 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:36:23,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:36:23,484 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:36:23,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:36:23,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:36:23,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:36:23,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:36:23,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:36:23,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:36:23,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:36:23,485 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 19:36:23,485 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:36:23,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:36:23,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:36:23,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:36:23,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:36:23,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:36:23,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:36:23,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:36:23,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:36:23,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:36:23,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:36:23,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:36:23,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:36:23,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 19:36:23,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 19:36:23,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:36:23,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:36:23,488 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_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 [2021-12-06 19:36:23,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:36:23,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:36:23,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:36:23,677 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:36:23,678 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:36:23,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/pthread-atomic/dekker-b.i [2021-12-06 19:36:23,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/data/0c8b2d2a3/d9df0f62334d482bbd117890657ece9e/FLAG64c96e17c [2021-12-06 19:36:24,157 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:36:24,157 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/sv-benchmarks/c/pthread-atomic/dekker-b.i [2021-12-06 19:36:24,168 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/data/0c8b2d2a3/d9df0f62334d482bbd117890657ece9e/FLAG64c96e17c [2021-12-06 19:36:24,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/data/0c8b2d2a3/d9df0f62334d482bbd117890657ece9e [2021-12-06 19:36:24,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:36:24,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:36:24,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:36:24,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:36:24,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:36:24,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8b1e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24, skipping insertion in model container [2021-12-06 19:36:24,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:36:24,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:36:24,424 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_ad5fe517-d460-4d9c-ac60-16baba2cf92a/sv-benchmarks/c/pthread-atomic/dekker-b.i[30165,30178] [2021-12-06 19:36:24,427 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_ad5fe517-d460-4d9c-ac60-16baba2cf92a/sv-benchmarks/c/pthread-atomic/dekker-b.i[30411,30424] [2021-12-06 19:36:24,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:36:24,437 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:36:24,463 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_ad5fe517-d460-4d9c-ac60-16baba2cf92a/sv-benchmarks/c/pthread-atomic/dekker-b.i[30165,30178] [2021-12-06 19:36:24,465 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_ad5fe517-d460-4d9c-ac60-16baba2cf92a/sv-benchmarks/c/pthread-atomic/dekker-b.i[30411,30424] [2021-12-06 19:36:24,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:36:24,496 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:36:24,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24 WrapperNode [2021-12-06 19:36:24,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:36:24,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:36:24,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:36:24,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:36:24,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,529 INFO L137 Inliner]: procedures = 168, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2021-12-06 19:36:24,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:36:24,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:36:24,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:36:24,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:36:24,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:36:24,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:36:24,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:36:24,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:36:24,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (1/1) ... [2021-12-06 19:36:24,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:36:24,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:36:24,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:36:24,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:36:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 19:36:24,621 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-12-06 19:36:24,621 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-12-06 19:36:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-12-06 19:36:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-12-06 19:36:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 19:36:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:36:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 19:36:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 19:36:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:36:24,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:36:24,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:36:24,623 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 19:36:24,706 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:36:24,708 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:36:24,907 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:36:24,917 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:36:24,918 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-06 19:36:24,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:36:24 BoogieIcfgContainer [2021-12-06 19:36:24,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:36:24,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:36:24,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:36:24,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:36:24,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:36:24" (1/3) ... [2021-12-06 19:36:24,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6492e2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:36:24, skipping insertion in model container [2021-12-06 19:36:24,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:36:24" (2/3) ... [2021-12-06 19:36:24,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6492e2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:36:24, skipping insertion in model container [2021-12-06 19:36:24,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:36:24" (3/3) ... [2021-12-06 19:36:24,928 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker-b.i [2021-12-06 19:36:24,933 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 19:36:24,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:36:24,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2021-12-06 19:36:24,933 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 19:36:24,960 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,960 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,960 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,960 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,961 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,961 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,961 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,961 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,961 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,961 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,961 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,962 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,962 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,962 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,962 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,962 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,962 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,962 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,963 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,963 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,963 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,963 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,963 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,963 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,963 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,963 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,964 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,964 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,964 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,964 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,964 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,964 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,966 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,966 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,966 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,966 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,966 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,966 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,966 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,967 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,967 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,967 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,967 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,967 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,967 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,967 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,967 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,967 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,968 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,968 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,968 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,968 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,968 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,968 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,968 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,968 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,968 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,969 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,969 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,969 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,969 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,969 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,969 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,969 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,970 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,970 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,970 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,971 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,971 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,971 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,972 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,973 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,974 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,975 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,977 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,978 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,978 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,978 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,978 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,978 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,978 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,978 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,978 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,978 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,979 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,979 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,981 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,981 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,982 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,985 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,985 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 19:36:24,987 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-12-06 19:36:25,041 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:36:25,048 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:36:25,048 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-12-06 19:36:25,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 196 places, 203 transitions, 422 flow [2021-12-06 19:36:25,123 INFO L129 PetriNetUnfolder]: 14/201 cut-off events. [2021-12-06 19:36:25,123 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-12-06 19:36:25,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 201 events. 14/201 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 454 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2021-12-06 19:36:25,128 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 203 transitions, 422 flow [2021-12-06 19:36:25,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 191 transitions, 391 flow [2021-12-06 19:36:25,137 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-12-06 19:36:25,137 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 19:36:25,137 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:25,138 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:36:25,138 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash -468392683, now seen corresponding path program 1 times [2021-12-06 19:36:25,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:25,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914708803] [2021-12-06 19:36:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:25,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:25,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:25,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914708803] [2021-12-06 19:36:25,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914708803] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:25,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:25,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:36:25,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266332763] [2021-12-06 19:36:25,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:25,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:25,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:25,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:25,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:25,313 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 203 [2021-12-06 19:36:25,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 191 transitions, 391 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 19:36:25,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 203 [2021-12-06 19:36:25,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 19:36:25,545 INFO L129 PetriNetUnfolder]: 166/1083 cut-off events. [2021-12-06 19:36:25,545 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-12-06 19:36:25,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1379 conditions, 1083 events. 166/1083 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7645 event pairs, 39 based on Foata normal form. 67/907 useless extension candidates. Maximal degree in co-relation 1169. Up to 149 conditions per place. [2021-12-06 19:36:25,556 INFO L132 encePairwiseOnDemand]: 179/203 looper letters, 30 selfloop transitions, 11 changer transitions 1/196 dead transitions. [2021-12-06 19:36:25,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 196 transitions, 489 flow [2021-12-06 19:36:25,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:25,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 19:36:25,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2021-12-06 19:36:25,569 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.916256157635468 [2021-12-06 19:36:25,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2021-12-06 19:36:25,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2021-12-06 19:36:25,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:36:25,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2021-12-06 19:36:25,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,587 INFO L186 Difference]: Start difference. First operand has 184 places, 191 transitions, 391 flow. Second operand 3 states and 558 transitions. [2021-12-06 19:36:25,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 196 transitions, 489 flow [2021-12-06 19:36:25,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 196 transitions, 481 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-12-06 19:36:25,598 INFO L242 Difference]: Finished difference. Result has 181 places, 189 transitions, 454 flow [2021-12-06 19:36:25,601 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=181, PETRI_TRANSITIONS=189} [2021-12-06 19:36:25,604 INFO L334 CegarLoopForPetriNet]: 184 programPoint places, -3 predicate places. [2021-12-06 19:36:25,604 INFO L470 AbstractCegarLoop]: Abstraction has has 181 places, 189 transitions, 454 flow [2021-12-06 19:36:25,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,605 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:25,605 INFO L254 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] [2021-12-06 19:36:25,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:36:25,605 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:25,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:25,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1905730905, now seen corresponding path program 1 times [2021-12-06 19:36:25,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:25,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920128759] [2021-12-06 19:36:25,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:25,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:25,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:25,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920128759] [2021-12-06 19:36:25,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920128759] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:25,677 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:25,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:36:25,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250731961] [2021-12-06 19:36:25,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:25,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:36:25,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:25,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:36:25,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:36:25,681 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 203 [2021-12-06 19:36:25,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 189 transitions, 454 flow. Second operand has 4 states, 4 states have (on average 173.75) internal successors, (695), 4 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 19:36:25,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 203 [2021-12-06 19:36:25,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 19:36:25,818 INFO L129 PetriNetUnfolder]: 90/763 cut-off events. [2021-12-06 19:36:25,818 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2021-12-06 19:36:25,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 763 events. 90/763 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4760 event pairs, 18 based on Foata normal form. 0/609 useless extension candidates. Maximal degree in co-relation 927. Up to 71 conditions per place. [2021-12-06 19:36:25,824 INFO L132 encePairwiseOnDemand]: 192/203 looper letters, 19 selfloop transitions, 7 changer transitions 0/194 dead transitions. [2021-12-06 19:36:25,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 194 transitions, 518 flow [2021-12-06 19:36:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:36:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-12-06 19:36:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 718 transitions. [2021-12-06 19:36:25,827 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8842364532019704 [2021-12-06 19:36:25,827 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 718 transitions. [2021-12-06 19:36:25,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 718 transitions. [2021-12-06 19:36:25,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:36:25,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 718 transitions. [2021-12-06 19:36:25,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 179.5) internal successors, (718), 4 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,833 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,833 INFO L186 Difference]: Start difference. First operand has 181 places, 189 transitions, 454 flow. Second operand 4 states and 718 transitions. [2021-12-06 19:36:25,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 194 transitions, 518 flow [2021-12-06 19:36:25,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 194 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 19:36:25,839 INFO L242 Difference]: Finished difference. Result has 183 places, 191 transitions, 474 flow [2021-12-06 19:36:25,840 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=474, PETRI_PLACES=183, PETRI_TRANSITIONS=191} [2021-12-06 19:36:25,840 INFO L334 CegarLoopForPetriNet]: 184 programPoint places, -1 predicate places. [2021-12-06 19:36:25,840 INFO L470 AbstractCegarLoop]: Abstraction has has 183 places, 191 transitions, 474 flow [2021-12-06 19:36:25,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 173.75) internal successors, (695), 4 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,841 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:25,841 INFO L254 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] [2021-12-06 19:36:25,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:36:25,841 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:25,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:25,842 INFO L85 PathProgramCache]: Analyzing trace with hash 719811529, now seen corresponding path program 1 times [2021-12-06 19:36:25,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:25,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229662432] [2021-12-06 19:36:25,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:25,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:25,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:25,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:25,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229662432] [2021-12-06 19:36:25,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229662432] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:25,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:25,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:36:25,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762438145] [2021-12-06 19:36:25,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:25,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:25,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:25,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:25,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:25,885 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 203 [2021-12-06 19:36:25,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 191 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:25,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 19:36:25,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 203 [2021-12-06 19:36:25,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 19:36:26,008 INFO L129 PetriNetUnfolder]: 103/958 cut-off events. [2021-12-06 19:36:26,009 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2021-12-06 19:36:26,012 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 958 events. 103/958 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6419 event pairs, 46 based on Foata normal form. 0/783 useless extension candidates. Maximal degree in co-relation 1150. Up to 136 conditions per place. [2021-12-06 19:36:26,016 INFO L132 encePairwiseOnDemand]: 198/203 looper letters, 22 selfloop transitions, 4 changer transitions 0/197 dead transitions. [2021-12-06 19:36:26,016 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 197 transitions, 540 flow [2021-12-06 19:36:26,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 19:36:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions. [2021-12-06 19:36:26,018 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2021-12-06 19:36:26,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 546 transitions. [2021-12-06 19:36:26,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 546 transitions. [2021-12-06 19:36:26,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:36:26,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 546 transitions. [2021-12-06 19:36:26,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,022 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,022 INFO L186 Difference]: Start difference. First operand has 183 places, 191 transitions, 474 flow. Second operand 3 states and 546 transitions. [2021-12-06 19:36:26,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 197 transitions, 540 flow [2021-12-06 19:36:26,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 197 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 19:36:26,027 INFO L242 Difference]: Finished difference. Result has 186 places, 194 transitions, 502 flow [2021-12-06 19:36:26,027 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=502, PETRI_PLACES=186, PETRI_TRANSITIONS=194} [2021-12-06 19:36:26,028 INFO L334 CegarLoopForPetriNet]: 184 programPoint places, 2 predicate places. [2021-12-06 19:36:26,028 INFO L470 AbstractCegarLoop]: Abstraction has has 186 places, 194 transitions, 502 flow [2021-12-06 19:36:26,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,029 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:26,029 INFO L254 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] [2021-12-06 19:36:26,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:36:26,029 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:26,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:26,029 INFO L85 PathProgramCache]: Analyzing trace with hash -865887377, now seen corresponding path program 1 times [2021-12-06 19:36:26,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:26,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549790842] [2021-12-06 19:36:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:26,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:26,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:26,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549790842] [2021-12-06 19:36:26,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549790842] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:26,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:26,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:36:26,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670594041] [2021-12-06 19:36:26,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:26,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:26,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:26,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:26,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:26,067 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2021-12-06 19:36:26,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 194 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 19:36:26,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2021-12-06 19:36:26,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 19:36:26,327 INFO L129 PetriNetUnfolder]: 226/1912 cut-off events. [2021-12-06 19:36:26,328 INFO L130 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2021-12-06 19:36:26,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2611 conditions, 1912 events. 226/1912 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 16604 event pairs, 40 based on Foata normal form. 0/1558 useless extension candidates. Maximal degree in co-relation 2502. Up to 191 conditions per place. [2021-12-06 19:36:26,348 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 26 selfloop transitions, 6 changer transitions 0/208 dead transitions. [2021-12-06 19:36:26,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 208 transitions, 597 flow [2021-12-06 19:36:26,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 19:36:26,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 558 transitions. [2021-12-06 19:36:26,351 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.916256157635468 [2021-12-06 19:36:26,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 558 transitions. [2021-12-06 19:36:26,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 558 transitions. [2021-12-06 19:36:26,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:36:26,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 558 transitions. [2021-12-06 19:36:26,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,357 INFO L186 Difference]: Start difference. First operand has 186 places, 194 transitions, 502 flow. Second operand 3 states and 558 transitions. [2021-12-06 19:36:26,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 208 transitions, 597 flow [2021-12-06 19:36:26,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 208 transitions, 589 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 19:36:26,364 INFO L242 Difference]: Finished difference. Result has 188 places, 200 transitions, 544 flow [2021-12-06 19:36:26,365 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=544, PETRI_PLACES=188, PETRI_TRANSITIONS=200} [2021-12-06 19:36:26,365 INFO L334 CegarLoopForPetriNet]: 184 programPoint places, 4 predicate places. [2021-12-06 19:36:26,365 INFO L470 AbstractCegarLoop]: Abstraction has has 188 places, 200 transitions, 544 flow [2021-12-06 19:36:26,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,366 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:26,366 INFO L254 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] [2021-12-06 19:36:26,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:36:26,367 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:26,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:26,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1284984723, now seen corresponding path program 1 times [2021-12-06 19:36:26,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:26,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252068781] [2021-12-06 19:36:26,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:26,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:26,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:26,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252068781] [2021-12-06 19:36:26,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252068781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:26,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:26,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:36:26,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231462834] [2021-12-06 19:36:26,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:26,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:26,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:26,411 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 203 [2021-12-06 19:36:26,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 200 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 19:36:26,412 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 203 [2021-12-06 19:36:26,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 19:36:26,588 INFO L129 PetriNetUnfolder]: 231/1822 cut-off events. [2021-12-06 19:36:26,589 INFO L130 PetriNetUnfolder]: For 344/370 co-relation queries the response was YES. [2021-12-06 19:36:26,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2770 conditions, 1822 events. 231/1822 cut-off events. For 344/370 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 15670 event pairs, 72 based on Foata normal form. 1/1501 useless extension candidates. Maximal degree in co-relation 1606. Up to 317 conditions per place. [2021-12-06 19:36:26,601 INFO L132 encePairwiseOnDemand]: 198/203 looper letters, 28 selfloop transitions, 6 changer transitions 0/208 dead transitions. [2021-12-06 19:36:26,601 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 208 transitions, 643 flow [2021-12-06 19:36:26,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:26,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 19:36:26,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions. [2021-12-06 19:36:26,603 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.896551724137931 [2021-12-06 19:36:26,603 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 546 transitions. [2021-12-06 19:36:26,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 546 transitions. [2021-12-06 19:36:26,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:36:26,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 546 transitions. [2021-12-06 19:36:26,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,607 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,607 INFO L186 Difference]: Start difference. First operand has 188 places, 200 transitions, 544 flow. Second operand 3 states and 546 transitions. [2021-12-06 19:36:26,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 208 transitions, 643 flow [2021-12-06 19:36:26,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 208 transitions, 627 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 19:36:26,612 INFO L242 Difference]: Finished difference. Result has 190 places, 204 transitions, 578 flow [2021-12-06 19:36:26,613 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=578, PETRI_PLACES=190, PETRI_TRANSITIONS=204} [2021-12-06 19:36:26,613 INFO L334 CegarLoopForPetriNet]: 184 programPoint places, 6 predicate places. [2021-12-06 19:36:26,613 INFO L470 AbstractCegarLoop]: Abstraction has has 190 places, 204 transitions, 578 flow [2021-12-06 19:36:26,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,614 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:26,614 INFO L254 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] [2021-12-06 19:36:26,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 19:36:26,614 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:26,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:26,615 INFO L85 PathProgramCache]: Analyzing trace with hash -694775757, now seen corresponding path program 1 times [2021-12-06 19:36:26,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:26,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987056812] [2021-12-06 19:36:26,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:26,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:26,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:26,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987056812] [2021-12-06 19:36:26,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987056812] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:26,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:26,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:36:26,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794927451] [2021-12-06 19:36:26,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:26,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:26,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:26,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:26,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:26,645 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 203 [2021-12-06 19:36:26,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 204 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,646 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 19:36:26,646 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 203 [2021-12-06 19:36:26,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 19:36:26,872 INFO L129 PetriNetUnfolder]: 318/2037 cut-off events. [2021-12-06 19:36:26,872 INFO L130 PetriNetUnfolder]: For 140/143 co-relation queries the response was YES. [2021-12-06 19:36:26,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3087 conditions, 2037 events. 318/2037 cut-off events. For 140/143 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 18063 event pairs, 117 based on Foata normal form. 0/1644 useless extension candidates. Maximal degree in co-relation 2157. Up to 382 conditions per place. [2021-12-06 19:36:26,888 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 21 selfloop transitions, 5 changer transitions 0/213 dead transitions. [2021-12-06 19:36:26,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 213 transitions, 650 flow [2021-12-06 19:36:26,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:26,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 19:36:26,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 555 transitions. [2021-12-06 19:36:26,890 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9113300492610837 [2021-12-06 19:36:26,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 555 transitions. [2021-12-06 19:36:26,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 555 transitions. [2021-12-06 19:36:26,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:36:26,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 555 transitions. [2021-12-06 19:36:26,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,896 INFO L186 Difference]: Start difference. First operand has 190 places, 204 transitions, 578 flow. Second operand 3 states and 555 transitions. [2021-12-06 19:36:26,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 213 transitions, 650 flow [2021-12-06 19:36:26,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 213 transitions, 638 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 19:36:26,901 INFO L242 Difference]: Finished difference. Result has 192 places, 208 transitions, 604 flow [2021-12-06 19:36:26,901 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=604, PETRI_PLACES=192, PETRI_TRANSITIONS=208} [2021-12-06 19:36:26,902 INFO L334 CegarLoopForPetriNet]: 184 programPoint places, 8 predicate places. [2021-12-06 19:36:26,902 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 208 transitions, 604 flow [2021-12-06 19:36:26,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:26,903 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:26,903 INFO L254 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] [2021-12-06 19:36:26,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 19:36:26,903 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:26,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:26,904 INFO L85 PathProgramCache]: Analyzing trace with hash -269862313, now seen corresponding path program 1 times [2021-12-06 19:36:26,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:26,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599834308] [2021-12-06 19:36:26,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:26,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:27,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:27,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599834308] [2021-12-06 19:36:27,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599834308] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:27,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:27,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 19:36:27,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412998645] [2021-12-06 19:36:27,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:27,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 19:36:27,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:27,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 19:36:27,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 19:36:27,038 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 203 [2021-12-06 19:36:27,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 208 transitions, 604 flow. Second operand has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 19:36:27,039 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 203 [2021-12-06 19:36:27,039 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 19:36:27,211 INFO L129 PetriNetUnfolder]: 172/1605 cut-off events. [2021-12-06 19:36:27,211 INFO L130 PetriNetUnfolder]: For 112/224 co-relation queries the response was YES. [2021-12-06 19:36:27,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2394 conditions, 1605 events. 172/1605 cut-off events. For 112/224 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 13638 event pairs, 22 based on Foata normal form. 72/1401 useless extension candidates. Maximal degree in co-relation 2329. Up to 129 conditions per place. [2021-12-06 19:36:27,225 INFO L132 encePairwiseOnDemand]: 198/203 looper letters, 14 selfloop transitions, 4 changer transitions 0/207 dead transitions. [2021-12-06 19:36:27,226 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 207 transitions, 638 flow [2021-12-06 19:36:27,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:36:27,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 19:36:27,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1051 transitions. [2021-12-06 19:36:27,229 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8628899835796388 [2021-12-06 19:36:27,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1051 transitions. [2021-12-06 19:36:27,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1051 transitions. [2021-12-06 19:36:27,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:36:27,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1051 transitions. [2021-12-06 19:36:27,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.16666666666666) internal successors, (1051), 6 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,243 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,243 INFO L186 Difference]: Start difference. First operand has 192 places, 208 transitions, 604 flow. Second operand 6 states and 1051 transitions. [2021-12-06 19:36:27,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 207 transitions, 638 flow [2021-12-06 19:36:27,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 207 transitions, 628 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 19:36:27,248 INFO L242 Difference]: Finished difference. Result has 194 places, 207 transitions, 600 flow [2021-12-06 19:36:27,249 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=600, PETRI_PLACES=194, PETRI_TRANSITIONS=207} [2021-12-06 19:36:27,249 INFO L334 CegarLoopForPetriNet]: 184 programPoint places, 10 predicate places. [2021-12-06 19:36:27,249 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 207 transitions, 600 flow [2021-12-06 19:36:27,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.83333333333334) internal successors, (1043), 6 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,250 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:27,250 INFO L254 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] [2021-12-06 19:36:27,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 19:36:27,250 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:27,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:27,251 INFO L85 PathProgramCache]: Analyzing trace with hash -63127802, now seen corresponding path program 1 times [2021-12-06 19:36:27,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:27,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225246781] [2021-12-06 19:36:27,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:27,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:27,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:27,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:27,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225246781] [2021-12-06 19:36:27,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225246781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:27,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:27,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:36:27,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83752892] [2021-12-06 19:36:27,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:27,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:27,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:27,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:27,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:27,284 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 203 [2021-12-06 19:36:27,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 207 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 19:36:27,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 203 [2021-12-06 19:36:27,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 19:36:27,555 INFO L129 PetriNetUnfolder]: 369/2985 cut-off events. [2021-12-06 19:36:27,555 INFO L130 PetriNetUnfolder]: For 190/203 co-relation queries the response was YES. [2021-12-06 19:36:27,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4370 conditions, 2985 events. 369/2985 cut-off events. For 190/203 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 29975 event pairs, 56 based on Foata normal form. 2/2453 useless extension candidates. Maximal degree in co-relation 4231. Up to 231 conditions per place. [2021-12-06 19:36:27,577 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 23 selfloop transitions, 6 changer transitions 0/216 dead transitions. [2021-12-06 19:36:27,577 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 216 transitions, 683 flow [2021-12-06 19:36:27,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:27,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 19:36:27,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2021-12-06 19:36:27,579 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9080459770114943 [2021-12-06 19:36:27,579 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 553 transitions. [2021-12-06 19:36:27,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 553 transitions. [2021-12-06 19:36:27,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:36:27,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 553 transitions. [2021-12-06 19:36:27,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,582 INFO L186 Difference]: Start difference. First operand has 194 places, 207 transitions, 600 flow. Second operand 3 states and 553 transitions. [2021-12-06 19:36:27,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 216 transitions, 683 flow [2021-12-06 19:36:27,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 216 transitions, 676 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-12-06 19:36:27,597 INFO L242 Difference]: Finished difference. Result has 194 places, 212 transitions, 643 flow [2021-12-06 19:36:27,598 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=593, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=643, PETRI_PLACES=194, PETRI_TRANSITIONS=212} [2021-12-06 19:36:27,598 INFO L334 CegarLoopForPetriNet]: 184 programPoint places, 10 predicate places. [2021-12-06 19:36:27,598 INFO L470 AbstractCegarLoop]: Abstraction has has 194 places, 212 transitions, 643 flow [2021-12-06 19:36:27,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,598 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:27,599 INFO L254 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] [2021-12-06 19:36:27,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 19:36:27,599 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:27,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:27,599 INFO L85 PathProgramCache]: Analyzing trace with hash -616601324, now seen corresponding path program 1 times [2021-12-06 19:36:27,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:27,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383597252] [2021-12-06 19:36:27,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:27,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:36:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:36:27,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:36:27,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383597252] [2021-12-06 19:36:27,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383597252] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:36:27,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:36:27,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:36:27,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827016207] [2021-12-06 19:36:27,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:36:27,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:36:27,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:36:27,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:36:27,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:36:27,623 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 203 [2021-12-06 19:36:27,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 212 transitions, 643 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 19:36:27,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 203 [2021-12-06 19:36:27,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 19:36:27,762 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([482] L709-->L709-1: Formula: (= |v_#race~turn~0_1| 0) InVars {} OutVars{#race~turn~0=|v_#race~turn~0_1|} AuxVars[] AssignedVars[#race~turn~0][145], [Black: 220#true, 205#true, 247#(= |#race~flag1~0| 0), 44#L702-2true, thr2Thread1of1ForFork1InUse, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 199#true, Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), 152#L709-1true, 146#L725-4true, 253#(= |#race~x~0| 0), Black: 207#(= ~turn~0 0), Black: 245#true, Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|)]) [2021-12-06 19:36:27,762 INFO L384 tUnfolder$Statistics]: this new event has 78 ancestors and is cut-off event [2021-12-06 19:36:27,762 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2021-12-06 19:36:27,762 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2021-12-06 19:36:27,763 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2021-12-06 19:36:27,773 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L702-1-->L702-2: Formula: (= |v_#race~turn~0_10| |v_thr1Thread1of1ForFork0_#t~nondet7_3|) InVars {thr1Thread1of1ForFork0_#t~nondet7=|v_thr1Thread1of1ForFork0_#t~nondet7_3|} OutVars{#race~turn~0=|v_#race~turn~0_10|, thr1Thread1of1ForFork0_#t~nondet7=|v_thr1Thread1of1ForFork0_#t~nondet7_3|} AuxVars[] AssignedVars[#race~turn~0][111], [Black: 220#true, 205#true, 247#(= |#race~flag1~0| 0), 44#L702-2true, thr2Thread1of1ForFork1InUse, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 201#(= |#race~turn~0| 0), Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), 152#L709-1true, 146#L725-4true, 253#(= |#race~x~0| 0), Black: 207#(= ~turn~0 0), Black: 245#true, Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|)]) [2021-12-06 19:36:27,773 INFO L384 tUnfolder$Statistics]: this new event has 78 ancestors and is cut-off event [2021-12-06 19:36:27,773 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2021-12-06 19:36:27,773 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2021-12-06 19:36:27,773 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2021-12-06 19:36:27,783 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([568] L702-1-->L702-2: Formula: (= |v_#race~turn~0_10| |v_thr1Thread1of1ForFork0_#t~nondet7_3|) InVars {thr1Thread1of1ForFork0_#t~nondet7=|v_thr1Thread1of1ForFork0_#t~nondet7_3|} OutVars{#race~turn~0=|v_#race~turn~0_10|, thr1Thread1of1ForFork0_#t~nondet7=|v_thr1Thread1of1ForFork0_#t~nondet7_3|} AuxVars[] AssignedVars[#race~turn~0][111], [Black: 220#true, 205#true, 247#(= |#race~flag1~0| 0), 44#L702-2true, thr2Thread1of1ForFork1InUse, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 131#L709-2true, Black: 201#(= |#race~turn~0| 0), Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), 146#L725-4true, 253#(= |#race~x~0| 0), Black: 207#(= ~turn~0 0), Black: 245#true, Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|)]) [2021-12-06 19:36:27,783 INFO L384 tUnfolder$Statistics]: this new event has 79 ancestors and is cut-off event [2021-12-06 19:36:27,783 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2021-12-06 19:36:27,784 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2021-12-06 19:36:27,784 INFO L387 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2021-12-06 19:36:27,784 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([489] L709-2-->L709-4: Formula: (= v_~turn~0_4 1) InVars {~turn~0=v_~turn~0_4} OutVars{~turn~0=v_~turn~0_4} AuxVars[] AssignedVars[][148], [Black: 220#true, 205#true, 247#(= |#race~flag1~0| 0), 29#L702true, thr2Thread1of1ForFork1InUse, 32#L709-4true, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), Black: 199#true, 146#L725-4true, 253#(= |#race~x~0| 0), Black: 207#(= ~turn~0 0), Black: 245#true, Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|)]) [2021-12-06 19:36:27,784 INFO L384 tUnfolder$Statistics]: this new event has 78 ancestors and is cut-off event [2021-12-06 19:36:27,784 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2021-12-06 19:36:27,784 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2021-12-06 19:36:27,784 INFO L387 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2021-12-06 19:36:27,785 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([585] L703-2-->L703-3: Formula: (= |v_#race~flag1~0_7| |v_thr1Thread1of1ForFork0_#t~nondet8_3|) InVars {thr1Thread1of1ForFork0_#t~nondet8=|v_thr1Thread1of1ForFork0_#t~nondet8_3|} OutVars{thr1Thread1of1ForFork0_#t~nondet8=|v_thr1Thread1of1ForFork0_#t~nondet8_3|, #race~flag1~0=|v_#race~flag1~0_7|} AuxVars[] AssignedVars[#race~flag1~0][154], [Black: 220#true, 205#true, thr2Thread1of1ForFork1InUse, Black: 228#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 201#(= |#race~turn~0| 0), Black: 234#(= |thr1Thread1of1ForFork0_#t~nondet6| |#race~x~0|), 125#L703-3true, 167#L708-2true, 146#L725-4true, 253#(= |#race~x~0| 0), Black: 207#(= ~turn~0 0), Black: 247#(= |#race~flag1~0| 0), Black: 216#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 245#true]) [2021-12-06 19:36:27,785 INFO L384 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2021-12-06 19:36:27,785 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2021-12-06 19:36:27,785 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2021-12-06 19:36:27,785 INFO L387 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2021-12-06 19:36:27,941 INFO L129 PetriNetUnfolder]: 463/3316 cut-off events. [2021-12-06 19:36:27,941 INFO L130 PetriNetUnfolder]: For 443/481 co-relation queries the response was YES. [2021-12-06 19:36:27,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5222 conditions, 3316 events. 463/3316 cut-off events. For 443/481 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 34314 event pairs, 90 based on Foata normal form. 1/2758 useless extension candidates. Maximal degree in co-relation 4229. Up to 293 conditions per place. [2021-12-06 19:36:27,958 INFO L132 encePairwiseOnDemand]: 195/203 looper letters, 24 selfloop transitions, 7 changer transitions 0/225 dead transitions. [2021-12-06 19:36:27,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 225 transitions, 746 flow [2021-12-06 19:36:27,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:36:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 19:36:27,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 563 transitions. [2021-12-06 19:36:27,960 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9244663382594417 [2021-12-06 19:36:27,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 563 transitions. [2021-12-06 19:36:27,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 563 transitions. [2021-12-06 19:36:27,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 19:36:27,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 563 transitions. [2021-12-06 19:36:27,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,963 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,964 INFO L186 Difference]: Start difference. First operand has 194 places, 212 transitions, 643 flow. Second operand 3 states and 563 transitions. [2021-12-06 19:36:27,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 225 transitions, 746 flow [2021-12-06 19:36:27,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 225 transitions, 734 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 19:36:27,969 INFO L242 Difference]: Finished difference. Result has 196 places, 218 transitions, 693 flow [2021-12-06 19:36:27,969 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=196, PETRI_TRANSITIONS=218} [2021-12-06 19:36:27,970 INFO L334 CegarLoopForPetriNet]: 184 programPoint places, 12 predicate places. [2021-12-06 19:36:27,970 INFO L470 AbstractCegarLoop]: Abstraction has has 196 places, 218 transitions, 693 flow [2021-12-06 19:36:27,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:36:27,970 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 19:36:27,970 INFO L254 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] [2021-12-06 19:36:27,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 19:36:27,970 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2021-12-06 19:36:27,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:36:27,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1262388266, now seen corresponding path program 1 times [2021-12-06 19:36:27,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:36:27,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190195066] [2021-12-06 19:36:27,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:36:27,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:36:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:36:27,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:36:27,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:36:28,009 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:36:28,009 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 19:36:28,010 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2021-12-06 19:36:28,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2021-12-06 19:36:28,011 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2021-12-06 19:36:28,012 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2021-12-06 19:36:28,013 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (20 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (19 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2021-12-06 19:36:28,014 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2021-12-06 19:36:28,015 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2021-12-06 19:36:28,016 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2021-12-06 19:36:28,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 19:36:28,019 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:36:28,023 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 19:36:28,023 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:36:28,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:36:28 BasicIcfg [2021-12-06 19:36:28,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:36:28,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:36:28,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:36:28,058 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:36:28,058 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:36:24" (3/4) ... [2021-12-06 19:36:28,060 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:36:28,060 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:36:28,061 INFO L158 Benchmark]: Toolchain (without parser) took 3879.99ms. Allocated memory was 100.7MB in the beginning and 192.9MB in the end (delta: 92.3MB). Free memory was 64.4MB in the beginning and 90.6MB in the end (delta: -26.2MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2021-12-06 19:36:28,061 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:36:28,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.53ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 68.5MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 19:36:28,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.76ms. Allocated memory is still 100.7MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:36:28,062 INFO L158 Benchmark]: Boogie Preprocessor took 30.50ms. Allocated memory is still 100.7MB. Free memory was 66.4MB in the beginning and 64.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:36:28,062 INFO L158 Benchmark]: RCFGBuilder took 358.56ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 49.0MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 19:36:28,062 INFO L158 Benchmark]: TraceAbstraction took 3135.63ms. Allocated memory was 100.7MB in the beginning and 192.9MB in the end (delta: 92.3MB). Free memory was 48.5MB in the beginning and 90.6MB in the end (delta: -42.0MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2021-12-06 19:36:28,062 INFO L158 Benchmark]: Witness Printer took 2.38ms. Allocated memory is still 192.9MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:36:28,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.53ms. Allocated memory is still 100.7MB. Free memory was 64.2MB in the beginning and 68.5MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.76ms. Allocated memory is still 100.7MB. Free memory was 68.5MB in the beginning and 66.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.50ms. Allocated memory is still 100.7MB. Free memory was 66.4MB in the beginning and 64.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.56ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 49.0MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3135.63ms. Allocated memory was 100.7MB in the beginning and 192.9MB in the end (delta: 92.3MB). Free memory was 48.5MB in the beginning and 90.6MB in the end (delta: -42.0MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Witness Printer took 2.38ms. Allocated memory is still 192.9MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int flag1 = 0, flag2 = 0; VAL [flag1=0, flag2=0] [L689] 0 int turn; VAL [flag1=0, flag2=0, turn=0] [L690] 0 int x; VAL [flag1=0, flag2=0, turn=0, x=0] [L722] 0 pthread_t t1, t2; VAL [flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] EXPR 0 0<=turn VAL [flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] EXPR 0 0<=turn && turn<=1 VAL [0<=turn && turn<=1=1, flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] EXPR 0 turn<=1 VAL [0<=turn && turn<=1=1, flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] EXPR 0 0<=turn && turn<=1 VAL [0<=turn && turn<=1=1, flag1=0, flag2=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L723] CALL 0 assume_abort_if_not(0<=turn && turn<=1) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, flag1=0, flag2=0, turn=0, x=0] [L723] RET 0 assume_abort_if_not(0<=turn && turn<=1) [L724] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, turn=0, x=0] [L725] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, flag1=0, flag2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=0, flag2=1, turn=0, x=0] [L692] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=0, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [707] and C: flag2 >= 1 [693] - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 308 locations, 46 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 127 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=693occurred in iteration=9, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 445 NumberOfCodeBlocks, 445 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 382 ConstructedInterpolants, 0 QuantifiedInterpolants, 497 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 19:36:28,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad5fe517-d460-4d9c-ac60-16baba2cf92a/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE