./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.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_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/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_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/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_254b5d4c-8ea5-486a-a157-a53f0d1faf58/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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:37:36,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:37:36,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:37:36,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:37:36,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:37:36,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:37:36,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:37:36,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:37:36,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:37:36,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:37:36,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:37:36,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:37:36,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:37:36,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:37:36,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:37:36,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:37:36,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:37:36,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:37:36,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:37:36,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:37:36,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:37:36,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:37:36,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:37:36,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:37:36,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:37:36,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:37:36,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:37:36,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:37:36,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:37:36,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:37:36,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:37:36,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:37:36,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:37:36,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:37:36,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:37:36,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:37:36,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:37:36,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:37:36,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:37:36,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:37:36,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:37:36,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 18:37:36,467 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:37:36,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:37:36,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:37:36,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:37:36,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:37:36,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:37:36,469 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:37:36,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:37:36,469 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:37:36,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:37:36,469 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:37:36,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:37:36,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:37:36,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:37:36,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:37:36,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:37:36,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:37:36,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:37:36,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:37:36,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:37:36,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:37:36,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:37:36,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:37:36,472 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:37:36,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:37:36,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:37:36,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:37:36,472 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_254b5d4c-8ea5-486a-a157-a53f0d1faf58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2021-12-06 18:37:36,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:37:36,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:37:36,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:37:36,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:37:36,674 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:37:36,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2021-12-06 18:37:36,717 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/data/450c576c3/bd1eb7dfcb50423da458d8a147663c6f/FLAG6feb8d165 [2021-12-06 18:37:37,147 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:37:37,148 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2021-12-06 18:37:37,163 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/data/450c576c3/bd1eb7dfcb50423da458d8a147663c6f/FLAG6feb8d165 [2021-12-06 18:37:37,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/data/450c576c3/bd1eb7dfcb50423da458d8a147663c6f [2021-12-06 18:37:37,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:37:37,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:37:37,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:37:37,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:37:37,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:37:37,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fca945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37, skipping insertion in model container [2021-12-06 18:37:37,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:37:37,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:37:37,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:37:37,505 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:37:37,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:37:37,577 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:37:37,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37 WrapperNode [2021-12-06 18:37:37,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:37:37,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:37:37,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:37:37,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:37:37,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,618 INFO L137 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2021-12-06 18:37:37,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:37:37,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:37:37,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:37:37,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:37:37,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:37:37,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:37:37,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:37:37,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:37:37,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (1/1) ... [2021-12-06 18:37:37,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:37:37,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:37:37,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:37:37,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_254b5d4c-8ea5-486a-a157-a53f0d1faf58/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:37:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:37:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:37:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:37:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:37:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 18:37:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:37:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 18:37:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 18:37:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:37:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:37:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:37:37,698 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 18:37:37,798 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:37:37,800 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:37:37,977 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:37:37,985 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:37:37,986 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:37:37,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:37:37 BoogieIcfgContainer [2021-12-06 18:37:37,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:37:37,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:37:37,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:37:37,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:37:37,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:37:37" (1/3) ... [2021-12-06 18:37:37,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4238ed55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:37:37, skipping insertion in model container [2021-12-06 18:37:37,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:37:37" (2/3) ... [2021-12-06 18:37:37,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4238ed55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:37:37, skipping insertion in model container [2021-12-06 18:37:37,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:37:37" (3/3) ... [2021-12-06 18:37:37,996 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2021-12-06 18:37:38,001 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 18:37:38,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:37:38,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-12-06 18:37:38,001 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 18:37:38,028 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,028 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,028 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,028 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,029 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,030 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,031 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,032 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,033 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,034 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,035 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,036 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,037 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,038 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,039 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,040 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,041 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,042 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,043 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,044 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,045 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,046 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,047 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,048 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,048 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,048 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,048 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,049 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,049 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,049 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,049 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,049 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,049 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,049 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,050 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,050 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,057 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,057 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,057 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,057 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,058 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,058 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,058 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,058 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,061 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,061 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,061 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,061 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~v#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~mem31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,062 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_~v#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,063 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,063 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#in~m#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,063 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_munge_#t~nondet32#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:37:38,067 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-06 18:37:38,105 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:37:38,112 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 18:37:38,112 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-06 18:37:38,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 106 transitions, 220 flow [2021-12-06 18:37:38,166 INFO L129 PetriNetUnfolder]: 0/105 cut-off events. [2021-12-06 18:37:38,166 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:37:38,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 105 events. 0/105 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-12-06 18:37:38,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 106 transitions, 220 flow [2021-12-06 18:37:38,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 197 flow [2021-12-06 18:37:38,186 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-12-06 18:37:38,187 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:37:38,187 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:38,187 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 18:37:38,188 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:38,192 INFO L85 PathProgramCache]: Analyzing trace with hash -161846166, now seen corresponding path program 1 times [2021-12-06 18:37:38,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:38,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972245163] [2021-12-06 18:37:38,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:38,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:38,489 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 18:37:38,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:38,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972245163] [2021-12-06 18:37:38,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972245163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:38,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:38,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:37:38,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532459175] [2021-12-06 18:37:38,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:38,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:37:38,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:38,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:37:38,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:37:38,527 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2021-12-06 18:37:38,531 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 197 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 18:37:38,532 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:38,532 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2021-12-06 18:37:38,533 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:38,898 INFO L129 PetriNetUnfolder]: 347/961 cut-off events. [2021-12-06 18:37:38,898 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:37:38,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1701 conditions, 961 events. 347/961 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5379 event pairs, 170 based on Foata normal form. 0/861 useless extension candidates. Maximal degree in co-relation 1662. Up to 526 conditions per place. [2021-12-06 18:37:38,908 INFO L132 encePairwiseOnDemand]: 95/106 looper letters, 91 selfloop transitions, 22 changer transitions 0/175 dead transitions. [2021-12-06 18:37:38,908 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 175 transitions, 579 flow [2021-12-06 18:37:38,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:37:38,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:37:38,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2021-12-06 18:37:38,921 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.839622641509434 [2021-12-06 18:37:38,921 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2021-12-06 18:37:38,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2021-12-06 18:37:38,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:38,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2021-12-06 18:37:38,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 0 states have call successors, (0), 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 18:37:38,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 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 18:37:38,935 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 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 18:37:38,936 INFO L186 Difference]: Start difference. First operand has 101 places, 97 transitions, 197 flow. Second operand 6 states and 534 transitions. [2021-12-06 18:37:38,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 175 transitions, 579 flow [2021-12-06 18:37:38,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 175 transitions, 578 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 18:37:38,946 INFO L242 Difference]: Finished difference. Result has 110 places, 118 transitions, 346 flow [2021-12-06 18:37:38,949 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=110, PETRI_TRANSITIONS=118} [2021-12-06 18:37:38,953 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 9 predicate places. [2021-12-06 18:37:38,953 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 118 transitions, 346 flow [2021-12-06 18:37:38,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 18:37:38,954 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:38,954 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] [2021-12-06 18:37:38,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:37:38,954 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:38,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1010088859, now seen corresponding path program 1 times [2021-12-06 18:37:38,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:38,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34957312] [2021-12-06 18:37:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:38,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:39,067 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 18:37:39,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:39,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34957312] [2021-12-06 18:37:39,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34957312] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:39,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:39,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:37:39,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144971397] [2021-12-06 18:37:39,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:39,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:37:39,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:39,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:37:39,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:37:39,071 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 106 [2021-12-06 18:37:39,071 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 118 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 18:37:39,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:39,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 106 [2021-12-06 18:37:39,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:39,355 INFO L129 PetriNetUnfolder]: 332/958 cut-off events. [2021-12-06 18:37:39,355 INFO L130 PetriNetUnfolder]: For 394/400 co-relation queries the response was YES. [2021-12-06 18:37:39,357 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2095 conditions, 958 events. 332/958 cut-off events. For 394/400 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5459 event pairs, 155 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 2052. Up to 591 conditions per place. [2021-12-06 18:37:39,362 INFO L132 encePairwiseOnDemand]: 95/106 looper letters, 80 selfloop transitions, 26 changer transitions 0/168 dead transitions. [2021-12-06 18:37:39,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 168 transitions, 748 flow [2021-12-06 18:37:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:37:39,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:37:39,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 506 transitions. [2021-12-06 18:37:39,364 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7955974842767296 [2021-12-06 18:37:39,365 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 506 transitions. [2021-12-06 18:37:39,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 506 transitions. [2021-12-06 18:37:39,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:39,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 506 transitions. [2021-12-06 18:37:39,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.33333333333333) internal successors, (506), 6 states have internal predecessors, (506), 0 states have call successors, (0), 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 18:37:39,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 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 18:37:39,369 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 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 18:37:39,369 INFO L186 Difference]: Start difference. First operand has 110 places, 118 transitions, 346 flow. Second operand 6 states and 506 transitions. [2021-12-06 18:37:39,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 168 transitions, 748 flow [2021-12-06 18:37:39,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 168 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 18:37:39,375 INFO L242 Difference]: Finished difference. Result has 120 places, 139 transitions, 530 flow [2021-12-06 18:37:39,375 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=530, PETRI_PLACES=120, PETRI_TRANSITIONS=139} [2021-12-06 18:37:39,376 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 19 predicate places. [2021-12-06 18:37:39,376 INFO L470 AbstractCegarLoop]: Abstraction has has 120 places, 139 transitions, 530 flow [2021-12-06 18:37:39,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 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 18:37:39,377 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:39,377 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 18:37:39,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:37:39,377 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:39,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:39,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1644406941, now seen corresponding path program 1 times [2021-12-06 18:37:39,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:39,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162011242] [2021-12-06 18:37:39,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:39,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:39,475 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 18:37:39,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:39,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162011242] [2021-12-06 18:37:39,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162011242] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:39,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:39,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:37:39,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018904081] [2021-12-06 18:37:39,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:39,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:37:39,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:39,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:37:39,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:37:39,479 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2021-12-06 18:37:39,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 139 transitions, 530 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 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 18:37:39,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:39,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2021-12-06 18:37:39,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:39,808 INFO L129 PetriNetUnfolder]: 502/1324 cut-off events. [2021-12-06 18:37:39,808 INFO L130 PetriNetUnfolder]: For 780/786 co-relation queries the response was YES. [2021-12-06 18:37:39,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3293 conditions, 1324 events. 502/1324 cut-off events. For 780/786 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7769 event pairs, 196 based on Foata normal form. 0/1229 useless extension candidates. Maximal degree in co-relation 3245. Up to 895 conditions per place. [2021-12-06 18:37:39,821 INFO L132 encePairwiseOnDemand]: 87/106 looper letters, 94 selfloop transitions, 69 changer transitions 4/227 dead transitions. [2021-12-06 18:37:39,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 227 transitions, 1200 flow [2021-12-06 18:37:39,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:37:39,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:37:39,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2021-12-06 18:37:39,823 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8223270440251572 [2021-12-06 18:37:39,824 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 523 transitions. [2021-12-06 18:37:39,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 523 transitions. [2021-12-06 18:37:39,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:39,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 523 transitions. [2021-12-06 18:37:39,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 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 18:37:39,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 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 18:37:39,828 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 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 18:37:39,828 INFO L186 Difference]: Start difference. First operand has 120 places, 139 transitions, 530 flow. Second operand 6 states and 523 transitions. [2021-12-06 18:37:39,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 227 transitions, 1200 flow [2021-12-06 18:37:39,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 227 transitions, 1200 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-12-06 18:37:39,837 INFO L242 Difference]: Finished difference. Result has 130 places, 202 transitions, 1116 flow [2021-12-06 18:37:39,838 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1116, PETRI_PLACES=130, PETRI_TRANSITIONS=202} [2021-12-06 18:37:39,838 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 29 predicate places. [2021-12-06 18:37:39,839 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 202 transitions, 1116 flow [2021-12-06 18:37:39,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 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 18:37:39,839 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:39,839 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, 1] [2021-12-06 18:37:39,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:37:39,839 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:39,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:39,840 INFO L85 PathProgramCache]: Analyzing trace with hash -82871010, now seen corresponding path program 1 times [2021-12-06 18:37:39,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:39,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949551265] [2021-12-06 18:37:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:39,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:39,921 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 18:37:39,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:39,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949551265] [2021-12-06 18:37:39,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949551265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:39,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:39,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 18:37:39,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298543798] [2021-12-06 18:37:39,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:39,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 18:37:39,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:39,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 18:37:39,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-06 18:37:39,924 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 106 [2021-12-06 18:37:39,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 202 transitions, 1116 flow. Second operand has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 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 18:37:39,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:39,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 106 [2021-12-06 18:37:39,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:40,269 INFO L129 PetriNetUnfolder]: 545/1421 cut-off events. [2021-12-06 18:37:40,269 INFO L130 PetriNetUnfolder]: For 1828/1839 co-relation queries the response was YES. [2021-12-06 18:37:40,273 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4543 conditions, 1421 events. 545/1421 cut-off events. For 1828/1839 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 8619 event pairs, 155 based on Foata normal form. 0/1367 useless extension candidates. Maximal degree in co-relation 4490. Up to 995 conditions per place. [2021-12-06 18:37:40,280 INFO L132 encePairwiseOnDemand]: 91/106 looper letters, 145 selfloop transitions, 67 changer transitions 0/273 dead transitions. [2021-12-06 18:37:40,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 273 transitions, 1958 flow [2021-12-06 18:37:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 18:37:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-12-06 18:37:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2021-12-06 18:37:40,282 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7845911949685535 [2021-12-06 18:37:40,283 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 499 transitions. [2021-12-06 18:37:40,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 499 transitions. [2021-12-06 18:37:40,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:40,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 499 transitions. [2021-12-06 18:37:40,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.16666666666667) internal successors, (499), 6 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:37:40,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 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 18:37:40,286 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 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 18:37:40,286 INFO L186 Difference]: Start difference. First operand has 130 places, 202 transitions, 1116 flow. Second operand 6 states and 499 transitions. [2021-12-06 18:37:40,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 273 transitions, 1958 flow [2021-12-06 18:37:40,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 273 transitions, 1894 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-12-06 18:37:40,300 INFO L242 Difference]: Finished difference. Result has 140 places, 255 transitions, 1704 flow [2021-12-06 18:37:40,300 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1704, PETRI_PLACES=140, PETRI_TRANSITIONS=255} [2021-12-06 18:37:40,301 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 39 predicate places. [2021-12-06 18:37:40,301 INFO L470 AbstractCegarLoop]: Abstraction has has 140 places, 255 transitions, 1704 flow [2021-12-06 18:37:40,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.66666666666667) internal successors, (424), 6 states have internal predecessors, (424), 0 states have call successors, (0), 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 18:37:40,301 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:40,301 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:40,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:37:40,302 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:40,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:40,302 INFO L85 PathProgramCache]: Analyzing trace with hash -828484541, now seen corresponding path program 1 times [2021-12-06 18:37:40,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:40,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779116341] [2021-12-06 18:37:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:40,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:40,492 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 18:37:40,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:40,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779116341] [2021-12-06 18:37:40,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779116341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:40,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:40,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:40,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316949088] [2021-12-06 18:37:40,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:40,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:40,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:40,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:40,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:40,496 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:40,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 255 transitions, 1704 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:40,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:40,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:40,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:41,530 INFO L129 PetriNetUnfolder]: 1216/3141 cut-off events. [2021-12-06 18:37:41,530 INFO L130 PetriNetUnfolder]: For 6111/6117 co-relation queries the response was YES. [2021-12-06 18:37:41,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11141 conditions, 3141 events. 1216/3141 cut-off events. For 6111/6117 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 22346 event pairs, 152 based on Foata normal form. 11/3084 useless extension candidates. Maximal degree in co-relation 11079. Up to 1123 conditions per place. [2021-12-06 18:37:41,556 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 455 selfloop transitions, 70 changer transitions 2/581 dead transitions. [2021-12-06 18:37:41,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 581 transitions, 5158 flow [2021-12-06 18:37:41,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:37:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:37:41,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1105 transitions. [2021-12-06 18:37:41,560 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6949685534591195 [2021-12-06 18:37:41,560 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1105 transitions. [2021-12-06 18:37:41,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1105 transitions. [2021-12-06 18:37:41,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:41,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1105 transitions. [2021-12-06 18:37:41,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.66666666666667) internal successors, (1105), 15 states have internal predecessors, (1105), 0 states have call successors, (0), 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 18:37:41,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:37:41,567 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:37:41,567 INFO L186 Difference]: Start difference. First operand has 140 places, 255 transitions, 1704 flow. Second operand 15 states and 1105 transitions. [2021-12-06 18:37:41,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 581 transitions, 5158 flow [2021-12-06 18:37:41,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 581 transitions, 5010 flow, removed 74 selfloop flow, removed 0 redundant places. [2021-12-06 18:37:41,603 INFO L242 Difference]: Finished difference. Result has 162 places, 312 transitions, 2484 flow [2021-12-06 18:37:41,603 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1630, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2484, PETRI_PLACES=162, PETRI_TRANSITIONS=312} [2021-12-06 18:37:41,604 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 61 predicate places. [2021-12-06 18:37:41,604 INFO L470 AbstractCegarLoop]: Abstraction has has 162 places, 312 transitions, 2484 flow [2021-12-06 18:37:41,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:41,605 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:41,605 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, 1, 1, 1, 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 18:37:41,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:37:41,605 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:41,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:41,606 INFO L85 PathProgramCache]: Analyzing trace with hash 775345589, now seen corresponding path program 2 times [2021-12-06 18:37:41,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:41,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702587020] [2021-12-06 18:37:41,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:41,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:41,811 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 18:37:41,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:41,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702587020] [2021-12-06 18:37:41,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702587020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:41,811 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:41,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:41,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186642253] [2021-12-06 18:37:41,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:41,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:41,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:41,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:41,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:41,814 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:41,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 312 transitions, 2484 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:41,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:41,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:41,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:42,651 INFO L129 PetriNetUnfolder]: 1266/3256 cut-off events. [2021-12-06 18:37:42,651 INFO L130 PetriNetUnfolder]: For 8605/8623 co-relation queries the response was YES. [2021-12-06 18:37:42,662 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12343 conditions, 3256 events. 1266/3256 cut-off events. For 8605/8623 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 23481 event pairs, 187 based on Foata normal form. 5/3190 useless extension candidates. Maximal degree in co-relation 12270. Up to 1998 conditions per place. [2021-12-06 18:37:42,679 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 282 selfloop transitions, 95 changer transitions 0/431 dead transitions. [2021-12-06 18:37:42,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 431 transitions, 4124 flow [2021-12-06 18:37:42,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:37:42,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 18:37:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 886 transitions. [2021-12-06 18:37:42,682 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6965408805031447 [2021-12-06 18:37:42,682 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 886 transitions. [2021-12-06 18:37:42,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 886 transitions. [2021-12-06 18:37:42,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:42,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 886 transitions. [2021-12-06 18:37:42,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 73.83333333333333) internal successors, (886), 12 states have internal predecessors, (886), 0 states have call successors, (0), 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 18:37:42,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 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 18:37:42,687 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 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 18:37:42,687 INFO L186 Difference]: Start difference. First operand has 162 places, 312 transitions, 2484 flow. Second operand 12 states and 886 transitions. [2021-12-06 18:37:42,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 431 transitions, 4124 flow [2021-12-06 18:37:42,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 431 transitions, 4109 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-12-06 18:37:42,726 INFO L242 Difference]: Finished difference. Result has 175 places, 336 transitions, 3175 flow [2021-12-06 18:37:42,726 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2473, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3175, PETRI_PLACES=175, PETRI_TRANSITIONS=336} [2021-12-06 18:37:42,727 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 74 predicate places. [2021-12-06 18:37:42,727 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 336 transitions, 3175 flow [2021-12-06 18:37:42,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:42,728 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:42,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:42,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 18:37:42,728 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:42,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:42,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1044936823, now seen corresponding path program 1 times [2021-12-06 18:37:42,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:42,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803987404] [2021-12-06 18:37:42,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:42,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:42,905 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 18:37:42,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:42,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803987404] [2021-12-06 18:37:42,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803987404] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:42,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:42,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:42,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709664105] [2021-12-06 18:37:42,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:42,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:42,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:42,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:42,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:42,908 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:42,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 336 transitions, 3175 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:42,910 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:42,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:42,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:44,260 INFO L129 PetriNetUnfolder]: 1954/5075 cut-off events. [2021-12-06 18:37:44,260 INFO L130 PetriNetUnfolder]: For 17493/17510 co-relation queries the response was YES. [2021-12-06 18:37:44,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19812 conditions, 5075 events. 1954/5075 cut-off events. For 17493/17510 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 40797 event pairs, 209 based on Foata normal form. 13/4983 useless extension candidates. Maximal degree in co-relation 19734. Up to 1264 conditions per place. [2021-12-06 18:37:44,297 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 695 selfloop transitions, 107 changer transitions 7/863 dead transitions. [2021-12-06 18:37:44,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 863 transitions, 9124 flow [2021-12-06 18:37:44,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:37:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:37:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1138 transitions. [2021-12-06 18:37:44,300 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7668463611859838 [2021-12-06 18:37:44,300 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1138 transitions. [2021-12-06 18:37:44,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1138 transitions. [2021-12-06 18:37:44,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:44,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1138 transitions. [2021-12-06 18:37:44,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 81.28571428571429) internal successors, (1138), 14 states have internal predecessors, (1138), 0 states have call successors, (0), 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 18:37:44,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:37:44,306 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:37:44,306 INFO L186 Difference]: Start difference. First operand has 175 places, 336 transitions, 3175 flow. Second operand 14 states and 1138 transitions. [2021-12-06 18:37:44,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 863 transitions, 9124 flow [2021-12-06 18:37:44,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 863 transitions, 8953 flow, removed 5 selfloop flow, removed 7 redundant places. [2021-12-06 18:37:44,372 INFO L242 Difference]: Finished difference. Result has 191 places, 428 transitions, 4700 flow [2021-12-06 18:37:44,372 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3113, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4700, PETRI_PLACES=191, PETRI_TRANSITIONS=428} [2021-12-06 18:37:44,373 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 90 predicate places. [2021-12-06 18:37:44,373 INFO L470 AbstractCegarLoop]: Abstraction has has 191 places, 428 transitions, 4700 flow [2021-12-06 18:37:44,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:44,373 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:44,374 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:44,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 18:37:44,374 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:44,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:44,374 INFO L85 PathProgramCache]: Analyzing trace with hash -550026487, now seen corresponding path program 3 times [2021-12-06 18:37:44,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:44,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810443765] [2021-12-06 18:37:44,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:44,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:44,563 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 18:37:44,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:44,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810443765] [2021-12-06 18:37:44,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810443765] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:44,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:44,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:44,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981685836] [2021-12-06 18:37:44,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:44,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:44,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:44,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:44,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:44,565 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:44,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 428 transitions, 4700 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:44,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:44,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:44,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:45,925 INFO L129 PetriNetUnfolder]: 2044/5251 cut-off events. [2021-12-06 18:37:45,925 INFO L130 PetriNetUnfolder]: For 23982/24012 co-relation queries the response was YES. [2021-12-06 18:37:45,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22125 conditions, 5251 events. 2044/5251 cut-off events. For 23982/24012 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 42601 event pairs, 321 based on Foata normal form. 13/5150 useless extension candidates. Maximal degree in co-relation 22037. Up to 3165 conditions per place. [2021-12-06 18:37:45,960 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 413 selfloop transitions, 146 changer transitions 0/613 dead transitions. [2021-12-06 18:37:45,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 613 transitions, 7639 flow [2021-12-06 18:37:45,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:37:45,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:37:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1023 transitions. [2021-12-06 18:37:45,963 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6893530997304582 [2021-12-06 18:37:45,963 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1023 transitions. [2021-12-06 18:37:45,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1023 transitions. [2021-12-06 18:37:45,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:45,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1023 transitions. [2021-12-06 18:37:45,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.07142857142857) internal successors, (1023), 14 states have internal predecessors, (1023), 0 states have call successors, (0), 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 18:37:45,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:37:45,968 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:37:45,968 INFO L186 Difference]: Start difference. First operand has 191 places, 428 transitions, 4700 flow. Second operand 14 states and 1023 transitions. [2021-12-06 18:37:45,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 613 transitions, 7639 flow [2021-12-06 18:37:46,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 613 transitions, 7609 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-12-06 18:37:46,053 INFO L242 Difference]: Finished difference. Result has 208 places, 465 transitions, 5885 flow [2021-12-06 18:37:46,053 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4685, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5885, PETRI_PLACES=208, PETRI_TRANSITIONS=465} [2021-12-06 18:37:46,054 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 107 predicate places. [2021-12-06 18:37:46,054 INFO L470 AbstractCegarLoop]: Abstraction has has 208 places, 465 transitions, 5885 flow [2021-12-06 18:37:46,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:46,054 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:46,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:46,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 18:37:46,055 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:46,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:46,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1859748813, now seen corresponding path program 2 times [2021-12-06 18:37:46,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:46,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951904369] [2021-12-06 18:37:46,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:46,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:46,221 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 18:37:46,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:46,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951904369] [2021-12-06 18:37:46,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951904369] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:46,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:46,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:46,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017129002] [2021-12-06 18:37:46,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:46,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:46,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:46,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:46,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:46,225 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:46,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 465 transitions, 5885 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:46,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:46,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:46,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:47,936 INFO L129 PetriNetUnfolder]: 2164/5599 cut-off events. [2021-12-06 18:37:47,936 INFO L130 PetriNetUnfolder]: For 32447/32467 co-relation queries the response was YES. [2021-12-06 18:37:47,960 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24583 conditions, 5599 events. 2164/5599 cut-off events. For 32447/32467 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 45962 event pairs, 283 based on Foata normal form. 23/5511 useless extension candidates. Maximal degree in co-relation 24488. Up to 1436 conditions per place. [2021-12-06 18:37:47,986 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 757 selfloop transitions, 134 changer transitions 8/953 dead transitions. [2021-12-06 18:37:47,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 953 transitions, 11900 flow [2021-12-06 18:37:47,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:37:47,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:37:47,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1218 transitions. [2021-12-06 18:37:47,989 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7660377358490567 [2021-12-06 18:37:47,989 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1218 transitions. [2021-12-06 18:37:47,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1218 transitions. [2021-12-06 18:37:47,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:47,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1218 transitions. [2021-12-06 18:37:47,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.2) internal successors, (1218), 15 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:37:47,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:37:47,995 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:37:47,995 INFO L186 Difference]: Start difference. First operand has 208 places, 465 transitions, 5885 flow. Second operand 15 states and 1218 transitions. [2021-12-06 18:37:47,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 953 transitions, 11900 flow [2021-12-06 18:37:48,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 953 transitions, 11712 flow, removed 32 selfloop flow, removed 6 redundant places. [2021-12-06 18:37:48,123 INFO L242 Difference]: Finished difference. Result has 221 places, 496 transitions, 6721 flow [2021-12-06 18:37:48,124 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5784, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6721, PETRI_PLACES=221, PETRI_TRANSITIONS=496} [2021-12-06 18:37:48,124 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 120 predicate places. [2021-12-06 18:37:48,124 INFO L470 AbstractCegarLoop]: Abstraction has has 221 places, 496 transitions, 6721 flow [2021-12-06 18:37:48,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:48,125 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:48,125 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:48,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 18:37:48,125 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:48,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:48,125 INFO L85 PathProgramCache]: Analyzing trace with hash 625135215, now seen corresponding path program 4 times [2021-12-06 18:37:48,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:48,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259892872] [2021-12-06 18:37:48,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:48,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:48,275 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 18:37:48,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:48,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259892872] [2021-12-06 18:37:48,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259892872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:48,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:48,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:48,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354261076] [2021-12-06 18:37:48,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:48,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:48,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:48,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:48,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:48,277 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:48,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 496 transitions, 6721 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:48,278 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:48,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:48,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:49,883 INFO L129 PetriNetUnfolder]: 2313/5908 cut-off events. [2021-12-06 18:37:49,883 INFO L130 PetriNetUnfolder]: For 41578/41612 co-relation queries the response was YES. [2021-12-06 18:37:49,914 INFO L84 FinitePrefix]: Finished finitePrefix Result has 27376 conditions, 5908 events. 2313/5908 cut-off events. For 41578/41612 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 49045 event pairs, 365 based on Foata normal form. 15/5800 useless extension candidates. Maximal degree in co-relation 27276. Up to 3397 conditions per place. [2021-12-06 18:37:49,936 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 469 selfloop transitions, 183 changer transitions 0/706 dead transitions. [2021-12-06 18:37:49,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 706 transitions, 10421 flow [2021-12-06 18:37:49,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:37:49,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:37:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2021-12-06 18:37:49,940 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2021-12-06 18:37:49,940 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2021-12-06 18:37:49,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2021-12-06 18:37:49,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:49,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2021-12-06 18:37:49,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 0 states have call successors, (0), 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 18:37:49,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:37:49,946 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:37:49,946 INFO L186 Difference]: Start difference. First operand has 221 places, 496 transitions, 6721 flow. Second operand 14 states and 1026 transitions. [2021-12-06 18:37:49,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 706 transitions, 10421 flow [2021-12-06 18:37:50,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 706 transitions, 10233 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-12-06 18:37:50,111 INFO L242 Difference]: Finished difference. Result has 233 places, 546 transitions, 8119 flow [2021-12-06 18:37:50,111 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6601, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8119, PETRI_PLACES=233, PETRI_TRANSITIONS=546} [2021-12-06 18:37:50,112 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 132 predicate places. [2021-12-06 18:37:50,112 INFO L470 AbstractCegarLoop]: Abstraction has has 233 places, 546 transitions, 8119 flow [2021-12-06 18:37:50,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:50,113 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:50,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:50,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 18:37:50,113 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:50,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:50,113 INFO L85 PathProgramCache]: Analyzing trace with hash -424157867, now seen corresponding path program 3 times [2021-12-06 18:37:50,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:50,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829421912] [2021-12-06 18:37:50,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:50,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:50,287 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 18:37:50,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:50,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829421912] [2021-12-06 18:37:50,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829421912] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:50,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:50,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:50,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077796026] [2021-12-06 18:37:50,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:50,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:50,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:50,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:50,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:50,289 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:50,290 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 546 transitions, 8119 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:50,290 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:50,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:50,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:52,510 INFO L129 PetriNetUnfolder]: 2460/6333 cut-off events. [2021-12-06 18:37:52,510 INFO L130 PetriNetUnfolder]: For 51109/51133 co-relation queries the response was YES. [2021-12-06 18:37:52,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30249 conditions, 6333 events. 2460/6333 cut-off events. For 51109/51133 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 53346 event pairs, 332 based on Foata normal form. 25/6235 useless extension candidates. Maximal degree in co-relation 30142. Up to 1719 conditions per place. [2021-12-06 18:37:52,561 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 833 selfloop transitions, 168 changer transitions 8/1063 dead transitions. [2021-12-06 18:37:52,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1063 transitions, 15105 flow [2021-12-06 18:37:52,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:37:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:37:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2021-12-06 18:37:52,563 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2021-12-06 18:37:52,563 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2021-12-06 18:37:52,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2021-12-06 18:37:52,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:52,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2021-12-06 18:37:52,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 0 states have call successors, (0), 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 18:37:52,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:37:52,568 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:37:52,568 INFO L186 Difference]: Start difference. First operand has 233 places, 546 transitions, 8119 flow. Second operand 15 states and 1220 transitions. [2021-12-06 18:37:52,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1063 transitions, 15105 flow [2021-12-06 18:37:52,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1063 transitions, 14893 flow, removed 66 selfloop flow, removed 5 redundant places. [2021-12-06 18:37:52,760 INFO L242 Difference]: Finished difference. Result has 248 places, 591 transitions, 9391 flow [2021-12-06 18:37:52,761 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7999, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9391, PETRI_PLACES=248, PETRI_TRANSITIONS=591} [2021-12-06 18:37:52,761 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 147 predicate places. [2021-12-06 18:37:52,761 INFO L470 AbstractCegarLoop]: Abstraction has has 248 places, 591 transitions, 9391 flow [2021-12-06 18:37:52,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:52,762 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:52,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:52,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 18:37:52,762 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:52,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:52,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1835629257, now seen corresponding path program 5 times [2021-12-06 18:37:52,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:52,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869456671] [2021-12-06 18:37:52,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:52,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:52,901 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 18:37:52,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:52,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869456671] [2021-12-06 18:37:52,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869456671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:52,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:52,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:52,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806587690] [2021-12-06 18:37:52,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:52,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:52,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:52,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:52,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:52,903 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:52,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 591 transitions, 9391 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:52,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:52,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:52,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:54,861 INFO L129 PetriNetUnfolder]: 2648/6738 cut-off events. [2021-12-06 18:37:54,861 INFO L130 PetriNetUnfolder]: For 64342/64380 co-relation queries the response was YES. [2021-12-06 18:37:54,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34030 conditions, 6738 events. 2648/6738 cut-off events. For 64342/64380 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 57396 event pairs, 442 based on Foata normal form. 17/6621 useless extension candidates. Maximal degree in co-relation 33917. Up to 3666 conditions per place. [2021-12-06 18:37:54,917 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 542 selfloop transitions, 220 changer transitions 0/816 dead transitions. [2021-12-06 18:37:54,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 816 transitions, 13642 flow [2021-12-06 18:37:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:37:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:37:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1026 transitions. [2021-12-06 18:37:54,919 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6913746630727763 [2021-12-06 18:37:54,919 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1026 transitions. [2021-12-06 18:37:54,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1026 transitions. [2021-12-06 18:37:54,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:54,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1026 transitions. [2021-12-06 18:37:54,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.28571428571429) internal successors, (1026), 14 states have internal predecessors, (1026), 0 states have call successors, (0), 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 18:37:54,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:37:54,923 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:37:54,923 INFO L186 Difference]: Start difference. First operand has 248 places, 591 transitions, 9391 flow. Second operand 14 states and 1026 transitions. [2021-12-06 18:37:54,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 816 transitions, 13642 flow [2021-12-06 18:37:55,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 816 transitions, 13383 flow, removed 33 selfloop flow, removed 8 redundant places. [2021-12-06 18:37:55,155 INFO L242 Difference]: Finished difference. Result has 261 places, 644 transitions, 11008 flow [2021-12-06 18:37:55,156 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9226, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=11008, PETRI_PLACES=261, PETRI_TRANSITIONS=644} [2021-12-06 18:37:55,156 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 160 predicate places. [2021-12-06 18:37:55,156 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 644 transitions, 11008 flow [2021-12-06 18:37:55,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:55,157 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:55,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:55,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-06 18:37:55,157 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:55,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:55,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1951202871, now seen corresponding path program 4 times [2021-12-06 18:37:55,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:55,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235070589] [2021-12-06 18:37:55,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:55,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:55,306 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 18:37:55,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:55,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235070589] [2021-12-06 18:37:55,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235070589] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:55,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:55,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:55,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114260239] [2021-12-06 18:37:55,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:55,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:55,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:55,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:55,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:55,308 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:55,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 644 transitions, 11008 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:55,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:55,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:55,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:37:57,870 INFO L129 PetriNetUnfolder]: 2821/7181 cut-off events. [2021-12-06 18:37:57,871 INFO L130 PetriNetUnfolder]: For 78933/78961 co-relation queries the response was YES. [2021-12-06 18:37:57,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37614 conditions, 7181 events. 2821/7181 cut-off events. For 78933/78961 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 61977 event pairs, 500 based on Foata normal form. 27/7071 useless extension candidates. Maximal degree in co-relation 37493. Up to 2074 conditions per place. [2021-12-06 18:37:57,941 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 917 selfloop transitions, 197 changer transitions 6/1174 dead transitions. [2021-12-06 18:37:57,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 1174 transitions, 18850 flow [2021-12-06 18:37:57,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:37:57,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:37:57,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1220 transitions. [2021-12-06 18:37:57,943 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7672955974842768 [2021-12-06 18:37:57,943 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1220 transitions. [2021-12-06 18:37:57,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1220 transitions. [2021-12-06 18:37:57,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:37:57,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1220 transitions. [2021-12-06 18:37:57,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.33333333333333) internal successors, (1220), 15 states have internal predecessors, (1220), 0 states have call successors, (0), 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 18:37:57,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:37:57,947 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:37:57,947 INFO L186 Difference]: Start difference. First operand has 261 places, 644 transitions, 11008 flow. Second operand 15 states and 1220 transitions. [2021-12-06 18:37:57,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 1174 transitions, 18850 flow [2021-12-06 18:37:58,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 1174 transitions, 18726 flow, removed 50 selfloop flow, removed 4 redundant places. [2021-12-06 18:37:58,288 INFO L242 Difference]: Finished difference. Result has 278 places, 691 transitions, 12582 flow [2021-12-06 18:37:58,288 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=10900, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=644, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12582, PETRI_PLACES=278, PETRI_TRANSITIONS=691} [2021-12-06 18:37:58,289 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 177 predicate places. [2021-12-06 18:37:58,289 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 691 transitions, 12582 flow [2021-12-06 18:37:58,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:58,289 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:37:58,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:37:58,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 18:37:58,290 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:37:58,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:37:58,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2137935371, now seen corresponding path program 6 times [2021-12-06 18:37:58,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:37:58,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380640209] [2021-12-06 18:37:58,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:37:58,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:37:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:37:58,411 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 18:37:58,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:37:58,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380640209] [2021-12-06 18:37:58,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380640209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:37:58,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:37:58,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:37:58,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026923011] [2021-12-06 18:37:58,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:37:58,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:37:58,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:37:58,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:37:58,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:37:58,413 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:37:58,414 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 691 transitions, 12582 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:37:58,414 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:37:58,414 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:37:58,414 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:38:01,057 INFO L129 PetriNetUnfolder]: 3471/8835 cut-off events. [2021-12-06 18:38:01,058 INFO L130 PetriNetUnfolder]: For 103271/103292 co-relation queries the response was YES. [2021-12-06 18:38:01,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47147 conditions, 8835 events. 3471/8835 cut-off events. For 103271/103292 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 79444 event pairs, 656 based on Foata normal form. 11/8668 useless extension candidates. Maximal degree in co-relation 47019. Up to 4267 conditions per place. [2021-12-06 18:38:01,196 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 796 selfloop transitions, 213 changer transitions 1/1064 dead transitions. [2021-12-06 18:38:01,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1064 transitions, 19008 flow [2021-12-06 18:38:01,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:38:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:38:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1046 transitions. [2021-12-06 18:38:01,198 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7048517520215634 [2021-12-06 18:38:01,199 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1046 transitions. [2021-12-06 18:38:01,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1046 transitions. [2021-12-06 18:38:01,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:38:01,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1046 transitions. [2021-12-06 18:38:01,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 74.71428571428571) internal successors, (1046), 14 states have internal predecessors, (1046), 0 states have call successors, (0), 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 18:38:01,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:38:01,203 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:38:01,203 INFO L186 Difference]: Start difference. First operand has 278 places, 691 transitions, 12582 flow. Second operand 14 states and 1046 transitions. [2021-12-06 18:38:01,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1064 transitions, 19008 flow [2021-12-06 18:38:01,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1064 transitions, 18757 flow, removed 20 selfloop flow, removed 7 redundant places. [2021-12-06 18:38:01,700 INFO L242 Difference]: Finished difference. Result has 293 places, 748 transitions, 14495 flow [2021-12-06 18:38:01,701 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=12410, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=158, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=14495, PETRI_PLACES=293, PETRI_TRANSITIONS=748} [2021-12-06 18:38:01,701 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 192 predicate places. [2021-12-06 18:38:01,702 INFO L470 AbstractCegarLoop]: Abstraction has has 293 places, 748 transitions, 14495 flow [2021-12-06 18:38:01,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:38:01,702 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:38:01,702 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:01,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-06 18:38:01,702 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:38:01,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:01,703 INFO L85 PathProgramCache]: Analyzing trace with hash -2078116881, now seen corresponding path program 5 times [2021-12-06 18:38:01,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:01,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126547993] [2021-12-06 18:38:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:01,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:01,825 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 18:38:01,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:01,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126547993] [2021-12-06 18:38:01,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126547993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:01,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:01,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:38:01,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971195311] [2021-12-06 18:38:01,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:01,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:38:01,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:01,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:38:01,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:38:01,827 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:38:01,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 748 transitions, 14495 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:38:01,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:38:01,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:38:01,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:38:05,256 INFO L129 PetriNetUnfolder]: 4007/10212 cut-off events. [2021-12-06 18:38:05,256 INFO L130 PetriNetUnfolder]: For 136290/136328 co-relation queries the response was YES. [2021-12-06 18:38:05,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56240 conditions, 10212 events. 4007/10212 cut-off events. For 136290/136328 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 94790 event pairs, 729 based on Foata normal form. 31/10040 useless extension candidates. Maximal degree in co-relation 56103. Up to 3277 conditions per place. [2021-12-06 18:38:05,430 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1155 selfloop transitions, 205 changer transitions 2/1416 dead transitions. [2021-12-06 18:38:05,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 1416 transitions, 25348 flow [2021-12-06 18:38:05,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:38:05,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:38:05,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1223 transitions. [2021-12-06 18:38:05,432 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.769182389937107 [2021-12-06 18:38:05,432 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1223 transitions. [2021-12-06 18:38:05,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1223 transitions. [2021-12-06 18:38:05,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:38:05,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1223 transitions. [2021-12-06 18:38:05,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 81.53333333333333) internal successors, (1223), 15 states have internal predecessors, (1223), 0 states have call successors, (0), 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 18:38:05,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:05,435 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:05,436 INFO L186 Difference]: Start difference. First operand has 293 places, 748 transitions, 14495 flow. Second operand 15 states and 1223 transitions. [2021-12-06 18:38:05,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 1416 transitions, 25348 flow [2021-12-06 18:38:06,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 1416 transitions, 25164 flow, removed 80 selfloop flow, removed 4 redundant places. [2021-12-06 18:38:06,107 INFO L242 Difference]: Finished difference. Result has 310 places, 799 transitions, 16172 flow [2021-12-06 18:38:06,108 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=14334, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=154, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16172, PETRI_PLACES=310, PETRI_TRANSITIONS=799} [2021-12-06 18:38:06,108 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 209 predicate places. [2021-12-06 18:38:06,108 INFO L470 AbstractCegarLoop]: Abstraction has has 310 places, 799 transitions, 16172 flow [2021-12-06 18:38:06,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:38:06,108 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:38:06,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:06,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-06 18:38:06,109 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:38:06,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:06,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1775369167, now seen corresponding path program 7 times [2021-12-06 18:38:06,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:06,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896834774] [2021-12-06 18:38:06,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:06,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:06,231 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 18:38:06,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:06,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896834774] [2021-12-06 18:38:06,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896834774] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:06,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:06,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:38:06,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717141622] [2021-12-06 18:38:06,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:06,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:38:06,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:06,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:38:06,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:38:06,234 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:38:06,235 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 799 transitions, 16172 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:38:06,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:38:06,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:38:06,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:38:10,257 INFO L129 PetriNetUnfolder]: 4551/11563 cut-off events. [2021-12-06 18:38:10,257 INFO L130 PetriNetUnfolder]: For 162977/162998 co-relation queries the response was YES. [2021-12-06 18:38:10,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64816 conditions, 11563 events. 4551/11563 cut-off events. For 162977/162998 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109520 event pairs, 921 based on Foata normal form. 11/11327 useless extension candidates. Maximal degree in co-relation 64672. Up to 4251 conditions per place. [2021-12-06 18:38:10,387 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1006 selfloop transitions, 252 changer transitions 1/1313 dead transitions. [2021-12-06 18:38:10,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1313 transitions, 24969 flow [2021-12-06 18:38:10,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:38:10,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:38:10,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1139 transitions. [2021-12-06 18:38:10,389 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7163522012578616 [2021-12-06 18:38:10,389 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1139 transitions. [2021-12-06 18:38:10,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1139 transitions. [2021-12-06 18:38:10,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:38:10,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1139 transitions. [2021-12-06 18:38:10,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.93333333333334) internal successors, (1139), 15 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:38:10,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:10,392 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:10,392 INFO L186 Difference]: Start difference. First operand has 310 places, 799 transitions, 16172 flow. Second operand 15 states and 1139 transitions. [2021-12-06 18:38:10,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1313 transitions, 24969 flow [2021-12-06 18:38:11,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1313 transitions, 24689 flow, removed 41 selfloop flow, removed 7 redundant places. [2021-12-06 18:38:11,295 INFO L242 Difference]: Finished difference. Result has 326 places, 868 transitions, 18706 flow [2021-12-06 18:38:11,296 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=15958, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=799, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18706, PETRI_PLACES=326, PETRI_TRANSITIONS=868} [2021-12-06 18:38:11,297 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 225 predicate places. [2021-12-06 18:38:11,297 INFO L470 AbstractCegarLoop]: Abstraction has has 326 places, 868 transitions, 18706 flow [2021-12-06 18:38:11,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:38:11,297 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:38:11,297 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:11,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-06 18:38:11,297 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:38:11,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1120278507, now seen corresponding path program 6 times [2021-12-06 18:38:11,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:11,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469027658] [2021-12-06 18:38:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:11,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:11,429 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 18:38:11,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:11,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469027658] [2021-12-06 18:38:11,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469027658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:11,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:11,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:38:11,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951173797] [2021-12-06 18:38:11,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:11,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:38:11,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:11,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:38:11,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:38:11,432 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:38:11,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 868 transitions, 18706 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:38:11,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:38:11,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:38:11,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:38:15,749 INFO L129 PetriNetUnfolder]: 4534/11505 cut-off events. [2021-12-06 18:38:15,750 INFO L130 PetriNetUnfolder]: For 183395/183438 co-relation queries the response was YES. [2021-12-06 18:38:15,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66167 conditions, 11505 events. 4534/11505 cut-off events. For 183395/183438 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 109232 event pairs, 904 based on Foata normal form. 31/11294 useless extension candidates. Maximal degree in co-relation 66014. Up to 4270 conditions per place. [2021-12-06 18:38:15,894 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1111 selfloop transitions, 220 changer transitions 4/1389 dead transitions. [2021-12-06 18:38:15,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 1389 transitions, 27849 flow [2021-12-06 18:38:15,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:38:15,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:38:15,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1175 transitions. [2021-12-06 18:38:15,895 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7389937106918238 [2021-12-06 18:38:15,896 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1175 transitions. [2021-12-06 18:38:15,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1175 transitions. [2021-12-06 18:38:15,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:38:15,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1175 transitions. [2021-12-06 18:38:15,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.33333333333333) internal successors, (1175), 15 states have internal predecessors, (1175), 0 states have call successors, (0), 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 18:38:15,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:15,898 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:15,899 INFO L186 Difference]: Start difference. First operand has 326 places, 868 transitions, 18706 flow. Second operand 15 states and 1175 transitions. [2021-12-06 18:38:15,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 1389 transitions, 27849 flow [2021-12-06 18:38:16,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 1389 transitions, 27553 flow, removed 144 selfloop flow, removed 3 redundant places. [2021-12-06 18:38:16,871 INFO L242 Difference]: Finished difference. Result has 345 places, 902 transitions, 19910 flow [2021-12-06 18:38:16,872 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=18450, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=868, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19910, PETRI_PLACES=345, PETRI_TRANSITIONS=902} [2021-12-06 18:38:16,872 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 244 predicate places. [2021-12-06 18:38:16,872 INFO L470 AbstractCegarLoop]: Abstraction has has 345 places, 902 transitions, 19910 flow [2021-12-06 18:38:16,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:38:16,872 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:38:16,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:16,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-06 18:38:16,873 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:38:16,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:16,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1727229204, now seen corresponding path program 1 times [2021-12-06 18:38:16,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:16,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107181497] [2021-12-06 18:38:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:16,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:16,999 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 18:38:16,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:16,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107181497] [2021-12-06 18:38:16,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107181497] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:17,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:17,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:38:17,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181202273] [2021-12-06 18:38:17,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:17,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:38:17,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:17,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:38:17,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:38:17,001 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:38:17,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 902 transitions, 19910 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:38:17,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:38:17,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:38:17,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:38:21,916 INFO L129 PetriNetUnfolder]: 5123/12486 cut-off events. [2021-12-06 18:38:21,916 INFO L130 PetriNetUnfolder]: For 203901/203916 co-relation queries the response was YES. [2021-12-06 18:38:22,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72586 conditions, 12486 events. 5123/12486 cut-off events. For 203901/203916 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 116897 event pairs, 1537 based on Foata normal form. 13/12213 useless extension candidates. Maximal degree in co-relation 72425. Up to 4958 conditions per place. [2021-12-06 18:38:22,087 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1016 selfloop transitions, 258 changer transitions 7/1332 dead transitions. [2021-12-06 18:38:22,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1332 transitions, 27465 flow [2021-12-06 18:38:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:38:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:38:22,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1111 transitions. [2021-12-06 18:38:22,089 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7486522911051213 [2021-12-06 18:38:22,089 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1111 transitions. [2021-12-06 18:38:22,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1111 transitions. [2021-12-06 18:38:22,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:38:22,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1111 transitions. [2021-12-06 18:38:22,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.35714285714286) internal successors, (1111), 14 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:38:22,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:38:22,092 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:38:22,092 INFO L186 Difference]: Start difference. First operand has 345 places, 902 transitions, 19910 flow. Second operand 14 states and 1111 transitions. [2021-12-06 18:38:22,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1332 transitions, 27465 flow [2021-12-06 18:38:23,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 1332 transitions, 27147 flow, removed 95 selfloop flow, removed 6 redundant places. [2021-12-06 18:38:23,265 INFO L242 Difference]: Finished difference. Result has 361 places, 1044 transitions, 22610 flow [2021-12-06 18:38:23,266 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=19593, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22610, PETRI_PLACES=361, PETRI_TRANSITIONS=1044} [2021-12-06 18:38:23,266 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 260 predicate places. [2021-12-06 18:38:23,266 INFO L470 AbstractCegarLoop]: Abstraction has has 361 places, 1044 transitions, 22610 flow [2021-12-06 18:38:23,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:38:23,266 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:38:23,267 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:23,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-06 18:38:23,267 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:38:23,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:23,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1036598373, now seen corresponding path program 8 times [2021-12-06 18:38:23,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:23,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118749257] [2021-12-06 18:38:23,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:23,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:23,390 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 18:38:23,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:23,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118749257] [2021-12-06 18:38:23,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118749257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:23,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:23,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:38:23,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283335115] [2021-12-06 18:38:23,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:23,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:38:23,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:23,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:38:23,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:38:23,392 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:38:23,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 1044 transitions, 22610 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:38:23,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:38:23,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:38:23,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:38:28,324 INFO L129 PetriNetUnfolder]: 4562/11530 cut-off events. [2021-12-06 18:38:28,324 INFO L130 PetriNetUnfolder]: For 204387/204437 co-relation queries the response was YES. [2021-12-06 18:38:28,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70501 conditions, 11530 events. 4562/11530 cut-off events. For 204387/204437 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 109116 event pairs, 972 based on Foata normal form. 22/11299 useless extension candidates. Maximal degree in co-relation 70332. Up to 4153 conditions per place. [2021-12-06 18:38:28,489 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1189 selfloop transitions, 278 changer transitions 0/1525 dead transitions. [2021-12-06 18:38:28,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1525 transitions, 31733 flow [2021-12-06 18:38:28,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 18:38:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-06 18:38:28,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1233 transitions. [2021-12-06 18:38:28,491 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7270047169811321 [2021-12-06 18:38:28,491 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1233 transitions. [2021-12-06 18:38:28,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1233 transitions. [2021-12-06 18:38:28,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:38:28,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1233 transitions. [2021-12-06 18:38:28,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 77.0625) internal successors, (1233), 16 states have internal predecessors, (1233), 0 states have call successors, (0), 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 18:38:28,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 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 18:38:28,495 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 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 18:38:28,495 INFO L186 Difference]: Start difference. First operand has 361 places, 1044 transitions, 22610 flow. Second operand 16 states and 1233 transitions. [2021-12-06 18:38:28,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1525 transitions, 31733 flow [2021-12-06 18:38:29,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 1525 transitions, 31375 flow, removed 173 selfloop flow, removed 3 redundant places. [2021-12-06 18:38:29,900 INFO L242 Difference]: Finished difference. Result has 380 places, 1093 transitions, 24455 flow [2021-12-06 18:38:29,901 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=22414, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1044, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=775, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=24455, PETRI_PLACES=380, PETRI_TRANSITIONS=1093} [2021-12-06 18:38:29,901 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 279 predicate places. [2021-12-06 18:38:29,901 INFO L470 AbstractCegarLoop]: Abstraction has has 380 places, 1093 transitions, 24455 flow [2021-12-06 18:38:29,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:38:29,902 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:38:29,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:29,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-06 18:38:29,902 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:38:29,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:29,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1273000734, now seen corresponding path program 2 times [2021-12-06 18:38:29,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:29,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389649295] [2021-12-06 18:38:29,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:29,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:30,021 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 18:38:30,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:30,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389649295] [2021-12-06 18:38:30,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389649295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:30,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:30,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:38:30,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638392184] [2021-12-06 18:38:30,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:30,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:38:30,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:30,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:38:30,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:38:30,023 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:38:30,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1093 transitions, 24455 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:38:30,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:38:30,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:38:30,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:38:35,871 INFO L129 PetriNetUnfolder]: 5193/12668 cut-off events. [2021-12-06 18:38:35,871 INFO L130 PetriNetUnfolder]: For 233815/233854 co-relation queries the response was YES. [2021-12-06 18:38:36,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77831 conditions, 12668 events. 5193/12668 cut-off events. For 233815/233854 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 118929 event pairs, 1525 based on Foata normal form. 27/12409 useless extension candidates. Maximal degree in co-relation 77655. Up to 4958 conditions per place. [2021-12-06 18:38:36,051 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1076 selfloop transitions, 305 changer transitions 7/1439 dead transitions. [2021-12-06 18:38:36,051 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 1439 transitions, 31453 flow [2021-12-06 18:38:36,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:38:36,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:38:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1184 transitions. [2021-12-06 18:38:36,053 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7446540880503144 [2021-12-06 18:38:36,053 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1184 transitions. [2021-12-06 18:38:36,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1184 transitions. [2021-12-06 18:38:36,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:38:36,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1184 transitions. [2021-12-06 18:38:36,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.93333333333334) internal successors, (1184), 15 states have internal predecessors, (1184), 0 states have call successors, (0), 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 18:38:36,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:36,056 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:36,056 INFO L186 Difference]: Start difference. First operand has 380 places, 1093 transitions, 24455 flow. Second operand 15 states and 1184 transitions. [2021-12-06 18:38:36,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 1439 transitions, 31453 flow [2021-12-06 18:38:37,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 1439 transitions, 31171 flow, removed 138 selfloop flow, removed 3 redundant places. [2021-12-06 18:38:37,656 INFO L242 Difference]: Finished difference. Result has 396 places, 1127 transitions, 25766 flow [2021-12-06 18:38:37,657 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=24285, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1093, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=271, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=792, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25766, PETRI_PLACES=396, PETRI_TRANSITIONS=1127} [2021-12-06 18:38:37,657 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 295 predicate places. [2021-12-06 18:38:37,657 INFO L470 AbstractCegarLoop]: Abstraction has has 396 places, 1127 transitions, 25766 flow [2021-12-06 18:38:37,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:38:37,657 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:38:37,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:37,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-06 18:38:37,658 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:38:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:37,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1272503600, now seen corresponding path program 3 times [2021-12-06 18:38:37,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:37,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712814962] [2021-12-06 18:38:37,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:37,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:37,757 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 18:38:37,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:37,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712814962] [2021-12-06 18:38:37,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712814962] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:37,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:37,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:38:37,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942299362] [2021-12-06 18:38:37,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:37,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:38:37,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:37,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:38:37,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:38:37,759 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:38:37,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 1127 transitions, 25766 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:38:37,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:38:37,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:38:37,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:38:43,684 INFO L129 PetriNetUnfolder]: 5283/12830 cut-off events. [2021-12-06 18:38:43,685 INFO L130 PetriNetUnfolder]: For 243563/243628 co-relation queries the response was YES. [2021-12-06 18:38:43,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81209 conditions, 12830 events. 5283/12830 cut-off events. For 243563/243628 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 120522 event pairs, 1552 based on Foata normal form. 33/12576 useless extension candidates. Maximal degree in co-relation 81027. Up to 4958 conditions per place. [2021-12-06 18:38:43,868 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1293 selfloop transitions, 272 changer transitions 8/1624 dead transitions. [2021-12-06 18:38:43,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1624 transitions, 34990 flow [2021-12-06 18:38:43,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:38:43,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:38:43,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1199 transitions. [2021-12-06 18:38:43,870 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7540880503144655 [2021-12-06 18:38:43,870 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1199 transitions. [2021-12-06 18:38:43,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1199 transitions. [2021-12-06 18:38:43,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:38:43,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1199 transitions. [2021-12-06 18:38:43,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.93333333333334) internal successors, (1199), 15 states have internal predecessors, (1199), 0 states have call successors, (0), 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 18:38:43,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:43,873 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:43,873 INFO L186 Difference]: Start difference. First operand has 396 places, 1127 transitions, 25766 flow. Second operand 15 states and 1199 transitions. [2021-12-06 18:38:43,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 1624 transitions, 34990 flow [2021-12-06 18:38:45,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 1624 transitions, 34848 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-12-06 18:38:45,637 INFO L242 Difference]: Finished difference. Result has 409 places, 1208 transitions, 27723 flow [2021-12-06 18:38:45,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=25624, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=866, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27723, PETRI_PLACES=409, PETRI_TRANSITIONS=1208} [2021-12-06 18:38:45,638 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 308 predicate places. [2021-12-06 18:38:45,638 INFO L470 AbstractCegarLoop]: Abstraction has has 409 places, 1208 transitions, 27723 flow [2021-12-06 18:38:45,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:38:45,639 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:38:45,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:45,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-06 18:38:45,639 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:38:45,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:45,639 INFO L85 PathProgramCache]: Analyzing trace with hash -431049022, now seen corresponding path program 4 times [2021-12-06 18:38:45,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:45,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664607626] [2021-12-06 18:38:45,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:45,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:45,752 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 18:38:45,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:45,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664607626] [2021-12-06 18:38:45,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664607626] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:45,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:45,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:38:45,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950576335] [2021-12-06 18:38:45,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:45,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:38:45,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:45,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:38:45,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:38:45,754 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:38:45,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 1208 transitions, 27723 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:38:45,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:38:45,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:38:45,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:38:52,208 INFO L129 PetriNetUnfolder]: 5389/13099 cut-off events. [2021-12-06 18:38:52,209 INFO L130 PetriNetUnfolder]: For 268574/268654 co-relation queries the response was YES. [2021-12-06 18:38:52,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86198 conditions, 13099 events. 5389/13099 cut-off events. For 268574/268654 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 123723 event pairs, 1611 based on Foata normal form. 35/12846 useless extension candidates. Maximal degree in co-relation 86011. Up to 4958 conditions per place. [2021-12-06 18:38:52,402 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1172 selfloop transitions, 375 changer transitions 6/1604 dead transitions. [2021-12-06 18:38:52,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 1604 transitions, 36127 flow [2021-12-06 18:38:52,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:38:52,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:38:52,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1180 transitions. [2021-12-06 18:38:52,403 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7421383647798742 [2021-12-06 18:38:52,404 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1180 transitions. [2021-12-06 18:38:52,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1180 transitions. [2021-12-06 18:38:52,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:38:52,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1180 transitions. [2021-12-06 18:38:52,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.66666666666667) internal successors, (1180), 15 states have internal predecessors, (1180), 0 states have call successors, (0), 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 18:38:52,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:52,407 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:38:52,407 INFO L186 Difference]: Start difference. First operand has 409 places, 1208 transitions, 27723 flow. Second operand 15 states and 1180 transitions. [2021-12-06 18:38:52,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 1604 transitions, 36127 flow [2021-12-06 18:38:54,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 1604 transitions, 35674 flow, removed 61 selfloop flow, removed 10 redundant places. [2021-12-06 18:38:54,636 INFO L242 Difference]: Finished difference. Result has 419 places, 1271 transitions, 29805 flow [2021-12-06 18:38:54,637 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=27304, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=29805, PETRI_PLACES=419, PETRI_TRANSITIONS=1271} [2021-12-06 18:38:54,637 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 318 predicate places. [2021-12-06 18:38:54,637 INFO L470 AbstractCegarLoop]: Abstraction has has 419 places, 1271 transitions, 29805 flow [2021-12-06 18:38:54,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:38:54,638 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:38:54,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:38:54,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-06 18:38:54,638 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:38:54,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:38:54,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1629774679, now seen corresponding path program 1 times [2021-12-06 18:38:54,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:38:54,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684114503] [2021-12-06 18:38:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:38:54,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:38:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:38:54,740 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 18:38:54,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:38:54,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684114503] [2021-12-06 18:38:54,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684114503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:38:54,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:38:54,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:38:54,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706858432] [2021-12-06 18:38:54,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:38:54,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:38:54,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:38:54,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:38:54,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:38:54,742 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:38:54,742 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1271 transitions, 29805 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:38:54,742 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:38:54,742 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:38:54,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:39:00,873 INFO L129 PetriNetUnfolder]: 5164/12716 cut-off events. [2021-12-06 18:39:00,873 INFO L130 PetriNetUnfolder]: For 283529/283629 co-relation queries the response was YES. [2021-12-06 18:39:01,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86301 conditions, 12716 events. 5164/12716 cut-off events. For 283529/283629 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 120532 event pairs, 1429 based on Foata normal form. 65/12538 useless extension candidates. Maximal degree in co-relation 86110. Up to 5048 conditions per place. [2021-12-06 18:39:01,071 INFO L132 encePairwiseOnDemand]: 85/106 looper letters, 1503 selfloop transitions, 201 changer transitions 0/1765 dead transitions. [2021-12-06 18:39:01,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 1765 transitions, 40700 flow [2021-12-06 18:39:01,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-06 18:39:01,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-12-06 18:39:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1209 transitions. [2021-12-06 18:39:01,073 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7128537735849056 [2021-12-06 18:39:01,073 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1209 transitions. [2021-12-06 18:39:01,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1209 transitions. [2021-12-06 18:39:01,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:39:01,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1209 transitions. [2021-12-06 18:39:01,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 75.5625) internal successors, (1209), 16 states have internal predecessors, (1209), 0 states have call successors, (0), 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 18:39:01,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 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 18:39:01,076 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 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 18:39:01,076 INFO L186 Difference]: Start difference. First operand has 419 places, 1271 transitions, 29805 flow. Second operand 16 states and 1209 transitions. [2021-12-06 18:39:01,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 1765 transitions, 40700 flow [2021-12-06 18:39:03,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 1765 transitions, 40160 flow, removed 94 selfloop flow, removed 8 redundant places. [2021-12-06 18:39:03,440 INFO L242 Difference]: Finished difference. Result has 433 places, 1348 transitions, 31253 flow [2021-12-06 18:39:03,441 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=29352, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=126, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1098, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=31253, PETRI_PLACES=433, PETRI_TRANSITIONS=1348} [2021-12-06 18:39:03,441 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 332 predicate places. [2021-12-06 18:39:03,441 INFO L470 AbstractCegarLoop]: Abstraction has has 433 places, 1348 transitions, 31253 flow [2021-12-06 18:39:03,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:39:03,441 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:39:03,442 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:03,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-06 18:39:03,442 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:39:03,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash -297786752, now seen corresponding path program 5 times [2021-12-06 18:39:03,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:03,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962234510] [2021-12-06 18:39:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:03,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:03,552 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 18:39:03,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:03,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962234510] [2021-12-06 18:39:03,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962234510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:03,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:39:03,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:39:03,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750486437] [2021-12-06 18:39:03,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:03,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:39:03,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:03,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:39:03,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:39:03,554 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:39:03,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 1348 transitions, 31253 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:39:03,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:39:03,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:39:03,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:39:10,338 INFO L129 PetriNetUnfolder]: 5355/13102 cut-off events. [2021-12-06 18:39:10,338 INFO L130 PetriNetUnfolder]: For 289711/289796 co-relation queries the response was YES. [2021-12-06 18:39:10,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89457 conditions, 13102 events. 5355/13102 cut-off events. For 289711/289796 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 124146 event pairs, 1496 based on Foata normal form. 43/12858 useless extension candidates. Maximal degree in co-relation 89259. Up to 4962 conditions per place. [2021-12-06 18:39:10,541 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1272 selfloop transitions, 406 changer transitions 5/1739 dead transitions. [2021-12-06 18:39:10,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 1739 transitions, 40349 flow [2021-12-06 18:39:10,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:39:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:39:10,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1170 transitions. [2021-12-06 18:39:10,542 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7358490566037735 [2021-12-06 18:39:10,543 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1170 transitions. [2021-12-06 18:39:10,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1170 transitions. [2021-12-06 18:39:10,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:39:10,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1170 transitions. [2021-12-06 18:39:10,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 78.0) internal successors, (1170), 15 states have internal predecessors, (1170), 0 states have call successors, (0), 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 18:39:10,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:39:10,545 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:39:10,546 INFO L186 Difference]: Start difference. First operand has 433 places, 1348 transitions, 31253 flow. Second operand 15 states and 1170 transitions. [2021-12-06 18:39:10,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 1739 transitions, 40349 flow [2021-12-06 18:39:13,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 1739 transitions, 40102 flow, removed 81 selfloop flow, removed 4 redundant places. [2021-12-06 18:39:13,326 INFO L242 Difference]: Finished difference. Result has 450 places, 1407 transitions, 33831 flow [2021-12-06 18:39:13,328 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=31029, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=347, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=947, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=33831, PETRI_PLACES=450, PETRI_TRANSITIONS=1407} [2021-12-06 18:39:13,328 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 349 predicate places. [2021-12-06 18:39:13,328 INFO L470 AbstractCegarLoop]: Abstraction has has 450 places, 1407 transitions, 33831 flow [2021-12-06 18:39:13,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:39:13,328 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:39:13,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:13,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-06 18:39:13,329 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:39:13,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:13,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1128838091, now seen corresponding path program 9 times [2021-12-06 18:39:13,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:13,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975165956] [2021-12-06 18:39:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:13,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:13,466 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 18:39:13,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:13,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975165956] [2021-12-06 18:39:13,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975165956] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:13,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:39:13,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:39:13,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024698482] [2021-12-06 18:39:13,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:13,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:39:13,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:13,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:39:13,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:39:13,469 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:39:13,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 1407 transitions, 33831 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:39:13,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:39:13,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:39:13,469 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:39:19,887 INFO L129 PetriNetUnfolder]: 4842/12238 cut-off events. [2021-12-06 18:39:19,887 INFO L130 PetriNetUnfolder]: For 317702/317803 co-relation queries the response was YES. [2021-12-06 18:39:20,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88756 conditions, 12238 events. 4842/12238 cut-off events. For 317702/317803 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 117841 event pairs, 1039 based on Foata normal form. 29/12010 useless extension candidates. Maximal degree in co-relation 88551. Up to 4157 conditions per place. [2021-12-06 18:39:20,087 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1260 selfloop transitions, 422 changer transitions 0/1753 dead transitions. [2021-12-06 18:39:20,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 1753 transitions, 43016 flow [2021-12-06 18:39:20,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:39:20,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:39:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1058 transitions. [2021-12-06 18:39:20,088 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7129380053908356 [2021-12-06 18:39:20,089 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1058 transitions. [2021-12-06 18:39:20,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1058 transitions. [2021-12-06 18:39:20,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:39:20,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1058 transitions. [2021-12-06 18:39:20,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 75.57142857142857) internal successors, (1058), 14 states have internal predecessors, (1058), 0 states have call successors, (0), 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 18:39:20,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:39:20,091 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:39:20,091 INFO L186 Difference]: Start difference. First operand has 450 places, 1407 transitions, 33831 flow. Second operand 14 states and 1058 transitions. [2021-12-06 18:39:20,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 1753 transitions, 43016 flow [2021-12-06 18:39:22,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 1753 transitions, 42552 flow, removed 110 selfloop flow, removed 8 redundant places. [2021-12-06 18:39:23,029 INFO L242 Difference]: Finished difference. Result has 461 places, 1447 transitions, 36357 flow [2021-12-06 18:39:23,030 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=33404, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=382, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=996, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=36357, PETRI_PLACES=461, PETRI_TRANSITIONS=1447} [2021-12-06 18:39:23,030 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 360 predicate places. [2021-12-06 18:39:23,030 INFO L470 AbstractCegarLoop]: Abstraction has has 461 places, 1447 transitions, 36357 flow [2021-12-06 18:39:23,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:39:23,030 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:39:23,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:23,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 18:39:23,031 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:39:23,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1739690421, now seen corresponding path program 10 times [2021-12-06 18:39:23,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:23,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873178929] [2021-12-06 18:39:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:23,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:23,141 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 18:39:23,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:23,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873178929] [2021-12-06 18:39:23,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873178929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:23,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:39:23,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:39:23,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105482871] [2021-12-06 18:39:23,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:23,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:39:23,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:23,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:39:23,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:39:23,144 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:39:23,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 1447 transitions, 36357 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:39:23,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:39:23,145 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:39:23,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:39:29,851 INFO L129 PetriNetUnfolder]: 4900/12455 cut-off events. [2021-12-06 18:39:29,851 INFO L130 PetriNetUnfolder]: For 349025/349134 co-relation queries the response was YES. [2021-12-06 18:39:30,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91747 conditions, 12455 events. 4900/12455 cut-off events. For 349025/349134 co-relation queries the response was YES. Maximal size of possible extension queue 536. Compared 120148 event pairs, 1064 based on Foata normal form. 33/12233 useless extension candidates. Maximal degree in co-relation 91537. Up to 4157 conditions per place. [2021-12-06 18:39:30,114 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1370 selfloop transitions, 323 changer transitions 0/1764 dead transitions. [2021-12-06 18:39:30,114 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 1764 transitions, 44441 flow [2021-12-06 18:39:30,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:39:30,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:39:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1142 transitions. [2021-12-06 18:39:30,116 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7182389937106918 [2021-12-06 18:39:30,116 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1142 transitions. [2021-12-06 18:39:30,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1142 transitions. [2021-12-06 18:39:30,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:39:30,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1142 transitions. [2021-12-06 18:39:30,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.13333333333334) internal successors, (1142), 15 states have internal predecessors, (1142), 0 states have call successors, (0), 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 18:39:30,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:39:30,119 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:39:30,119 INFO L186 Difference]: Start difference. First operand has 461 places, 1447 transitions, 36357 flow. Second operand 15 states and 1142 transitions. [2021-12-06 18:39:30,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 1764 transitions, 44441 flow [2021-12-06 18:39:33,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 1764 transitions, 44096 flow, removed 79 selfloop flow, removed 6 redundant places. [2021-12-06 18:39:33,201 INFO L242 Difference]: Finished difference. Result has 474 places, 1472 transitions, 37461 flow [2021-12-06 18:39:33,202 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=36060, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1447, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=298, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=37461, PETRI_PLACES=474, PETRI_TRANSITIONS=1472} [2021-12-06 18:39:33,202 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 373 predicate places. [2021-12-06 18:39:33,202 INFO L470 AbstractCegarLoop]: Abstraction has has 474 places, 1472 transitions, 37461 flow [2021-12-06 18:39:33,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:39:33,203 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:39:33,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:33,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 18:39:33,203 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:39:33,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:33,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1193177109, now seen corresponding path program 11 times [2021-12-06 18:39:33,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:33,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957311913] [2021-12-06 18:39:33,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:33,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:33,319 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 18:39:33,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:33,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957311913] [2021-12-06 18:39:33,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957311913] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:33,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:39:33,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:39:33,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355786201] [2021-12-06 18:39:33,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:33,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:39:33,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:33,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:39:33,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:39:33,321 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:39:33,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 1472 transitions, 37461 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:39:33,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:39:33,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:39:33,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:39:40,341 INFO L129 PetriNetUnfolder]: 4992/12631 cut-off events. [2021-12-06 18:39:40,341 INFO L130 PetriNetUnfolder]: For 372992/373089 co-relation queries the response was YES. [2021-12-06 18:39:40,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95076 conditions, 12631 events. 4992/12631 cut-off events. For 372992/373089 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 122479 event pairs, 1053 based on Foata normal form. 34/12410 useless extension candidates. Maximal degree in co-relation 94861. Up to 4157 conditions per place. [2021-12-06 18:39:40,565 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1304 selfloop transitions, 452 changer transitions 0/1827 dead transitions. [2021-12-06 18:39:40,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 1827 transitions, 47128 flow [2021-12-06 18:39:40,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:39:40,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:39:40,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1132 transitions. [2021-12-06 18:39:40,567 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7119496855345911 [2021-12-06 18:39:40,567 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1132 transitions. [2021-12-06 18:39:40,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1132 transitions. [2021-12-06 18:39:40,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:39:40,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1132 transitions. [2021-12-06 18:39:40,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.46666666666667) internal successors, (1132), 15 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:39:40,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:39:40,570 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:39:40,570 INFO L186 Difference]: Start difference. First operand has 474 places, 1472 transitions, 37461 flow. Second operand 15 states and 1132 transitions. [2021-12-06 18:39:40,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 1827 transitions, 47128 flow [2021-12-06 18:39:43,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 1827 transitions, 46304 flow, removed 128 selfloop flow, removed 10 redundant places. [2021-12-06 18:39:44,018 INFO L242 Difference]: Finished difference. Result has 483 places, 1507 transitions, 39744 flow [2021-12-06 18:39:44,019 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=36764, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=417, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1032, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=39744, PETRI_PLACES=483, PETRI_TRANSITIONS=1507} [2021-12-06 18:39:44,020 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 382 predicate places. [2021-12-06 18:39:44,020 INFO L470 AbstractCegarLoop]: Abstraction has has 483 places, 1507 transitions, 39744 flow [2021-12-06 18:39:44,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:39:44,020 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:39:44,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:44,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-12-06 18:39:44,020 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:39:44,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:44,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1152474109, now seen corresponding path program 2 times [2021-12-06 18:39:44,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:44,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886709660] [2021-12-06 18:39:44,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:44,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:44,113 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 18:39:44,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:44,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886709660] [2021-12-06 18:39:44,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886709660] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:44,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:39:44,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:39:44,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339181169] [2021-12-06 18:39:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:44,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:39:44,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:44,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:39:44,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:39:44,115 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:39:44,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 483 places, 1507 transitions, 39744 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:39:44,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:39:44,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:39:44,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:39:51,762 INFO L129 PetriNetUnfolder]: 5620/13859 cut-off events. [2021-12-06 18:39:51,762 INFO L130 PetriNetUnfolder]: For 416699/416803 co-relation queries the response was YES. [2021-12-06 18:39:52,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104756 conditions, 13859 events. 5620/13859 cut-off events. For 416699/416803 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 134186 event pairs, 1651 based on Foata normal form. 40/13652 useless extension candidates. Maximal degree in co-relation 104538. Up to 5048 conditions per place. [2021-12-06 18:39:52,089 INFO L132 encePairwiseOnDemand]: 85/106 looper letters, 1390 selfloop transitions, 448 changer transitions 0/1901 dead transitions. [2021-12-06 18:39:52,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 1901 transitions, 49865 flow [2021-12-06 18:39:52,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:39:52,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:39:52,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1111 transitions. [2021-12-06 18:39:52,091 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6987421383647798 [2021-12-06 18:39:52,091 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1111 transitions. [2021-12-06 18:39:52,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1111 transitions. [2021-12-06 18:39:52,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:39:52,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1111 transitions. [2021-12-06 18:39:52,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 74.06666666666666) internal successors, (1111), 15 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:39:52,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:39:52,094 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:39:52,094 INFO L186 Difference]: Start difference. First operand has 483 places, 1507 transitions, 39744 flow. Second operand 15 states and 1111 transitions. [2021-12-06 18:39:52,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 1901 transitions, 49865 flow [2021-12-06 18:39:56,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 490 places, 1901 transitions, 49473 flow, removed 21 selfloop flow, removed 7 redundant places. [2021-12-06 18:39:56,121 INFO L242 Difference]: Finished difference. Result has 496 places, 1630 transitions, 43361 flow [2021-12-06 18:39:56,122 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=39352, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1507, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=327, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1091, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=43361, PETRI_PLACES=496, PETRI_TRANSITIONS=1630} [2021-12-06 18:39:56,122 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 395 predicate places. [2021-12-06 18:39:56,122 INFO L470 AbstractCegarLoop]: Abstraction has has 496 places, 1630 transitions, 43361 flow [2021-12-06 18:39:56,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:39:56,122 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:39:56,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:39:56,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-12-06 18:39:56,123 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:39:56,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:39:56,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1122184801, now seen corresponding path program 12 times [2021-12-06 18:39:56,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:39:56,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292374110] [2021-12-06 18:39:56,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:39:56,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:39:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:39:56,240 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 18:39:56,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:39:56,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292374110] [2021-12-06 18:39:56,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292374110] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:39:56,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:39:56,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:39:56,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133702273] [2021-12-06 18:39:56,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:39:56,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:39:56,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:39:56,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:39:56,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:39:56,242 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:39:56,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 1630 transitions, 43361 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:39:56,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:39:56,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:39:56,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:40:04,445 INFO L129 PetriNetUnfolder]: 5291/13375 cut-off events. [2021-12-06 18:40:04,446 INFO L130 PetriNetUnfolder]: For 421220/421315 co-relation queries the response was YES. [2021-12-06 18:40:04,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104473 conditions, 13375 events. 5291/13375 cut-off events. For 421220/421315 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 131094 event pairs, 1100 based on Foata normal form. 32/13147 useless extension candidates. Maximal degree in co-relation 104249. Up to 4376 conditions per place. [2021-12-06 18:40:04,723 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1402 selfloop transitions, 458 changer transitions 0/1933 dead transitions. [2021-12-06 18:40:04,723 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 510 places, 1933 transitions, 52764 flow [2021-12-06 18:40:04,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:40:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:40:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1134 transitions. [2021-12-06 18:40:04,725 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7132075471698113 [2021-12-06 18:40:04,725 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1134 transitions. [2021-12-06 18:40:04,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1134 transitions. [2021-12-06 18:40:04,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:40:04,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1134 transitions. [2021-12-06 18:40:04,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.6) internal successors, (1134), 15 states have internal predecessors, (1134), 0 states have call successors, (0), 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 18:40:04,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:40:04,729 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:40:04,729 INFO L186 Difference]: Start difference. First operand has 496 places, 1630 transitions, 43361 flow. Second operand 15 states and 1134 transitions. [2021-12-06 18:40:04,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 510 places, 1933 transitions, 52764 flow [2021-12-06 18:40:08,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 505 places, 1933 transitions, 52532 flow, removed 89 selfloop flow, removed 5 redundant places. [2021-12-06 18:40:09,022 INFO L242 Difference]: Finished difference. Result has 511 places, 1677 transitions, 46532 flow [2021-12-06 18:40:09,023 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=43129, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=411, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=46532, PETRI_PLACES=511, PETRI_TRANSITIONS=1677} [2021-12-06 18:40:09,024 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 410 predicate places. [2021-12-06 18:40:09,024 INFO L470 AbstractCegarLoop]: Abstraction has has 511 places, 1677 transitions, 46532 flow [2021-12-06 18:40:09,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:40:09,024 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:40:09,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:09,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-12-06 18:40:09,024 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:40:09,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:09,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1057846776, now seen corresponding path program 6 times [2021-12-06 18:40:09,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:40:09,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267174502] [2021-12-06 18:40:09,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:09,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:40:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:09,121 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 18:40:09,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:40:09,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267174502] [2021-12-06 18:40:09,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267174502] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:09,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:09,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:40:09,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174004639] [2021-12-06 18:40:09,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:09,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:40:09,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:40:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:40:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:40:09,123 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:40:09,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 1677 transitions, 46532 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:40:09,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:40:09,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:40:09,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:40:18,539 INFO L129 PetriNetUnfolder]: 5869/14323 cut-off events. [2021-12-06 18:40:18,539 INFO L130 PetriNetUnfolder]: For 469758/469851 co-relation queries the response was YES. [2021-12-06 18:40:18,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111995 conditions, 14323 events. 5869/14323 cut-off events. For 469758/469851 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 138038 event pairs, 1697 based on Foata normal form. 70/14103 useless extension candidates. Maximal degree in co-relation 111764. Up to 4962 conditions per place. [2021-12-06 18:40:18,819 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1640 selfloop transitions, 327 changer transitions 7/2032 dead transitions. [2021-12-06 18:40:18,819 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 525 places, 2032 transitions, 56848 flow [2021-12-06 18:40:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:40:18,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:40:18,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1160 transitions. [2021-12-06 18:40:18,821 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7295597484276729 [2021-12-06 18:40:18,821 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1160 transitions. [2021-12-06 18:40:18,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1160 transitions. [2021-12-06 18:40:18,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:40:18,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1160 transitions. [2021-12-06 18:40:18,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 77.33333333333333) internal successors, (1160), 15 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:40:18,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:40:18,824 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:40:18,824 INFO L186 Difference]: Start difference. First operand has 511 places, 1677 transitions, 46532 flow. Second operand 15 states and 1160 transitions. [2021-12-06 18:40:18,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 525 places, 2032 transitions, 56848 flow [2021-12-06 18:40:23,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 518 places, 2032 transitions, 56205 flow, removed 133 selfloop flow, removed 7 redundant places. [2021-12-06 18:40:23,350 INFO L242 Difference]: Finished difference. Result has 525 places, 1721 transitions, 48200 flow [2021-12-06 18:40:23,351 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=46052, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1677, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=48200, PETRI_PLACES=525, PETRI_TRANSITIONS=1721} [2021-12-06 18:40:23,352 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 424 predicate places. [2021-12-06 18:40:23,352 INFO L470 AbstractCegarLoop]: Abstraction has has 525 places, 1721 transitions, 48200 flow [2021-12-06 18:40:23,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:40:23,352 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:40:23,352 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:23,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-12-06 18:40:23,352 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:40:23,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:23,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2087511681, now seen corresponding path program 3 times [2021-12-06 18:40:23,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:40:23,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636614574] [2021-12-06 18:40:23,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:23,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:40:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:23,468 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 18:40:23,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:40:23,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636614574] [2021-12-06 18:40:23,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636614574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:23,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:23,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:40:23,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858392405] [2021-12-06 18:40:23,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:23,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:40:23,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:40:23,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:40:23,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:40:23,469 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:40:23,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 1721 transitions, 48200 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:40:23,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:40:23,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:40:23,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:40:32,776 INFO L129 PetriNetUnfolder]: 5677/14067 cut-off events. [2021-12-06 18:40:32,776 INFO L130 PetriNetUnfolder]: For 491953/492058 co-relation queries the response was YES. [2021-12-06 18:40:33,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113734 conditions, 14067 events. 5677/14067 cut-off events. For 491953/492058 co-relation queries the response was YES. Maximal size of possible extension queue 586. Compared 136584 event pairs, 1560 based on Foata normal form. 39/13859 useless extension candidates. Maximal degree in co-relation 113496. Up to 5046 conditions per place. [2021-12-06 18:40:33,074 INFO L132 encePairwiseOnDemand]: 85/106 looper letters, 1679 selfloop transitions, 231 changer transitions 1/1977 dead transitions. [2021-12-06 18:40:33,074 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 1977 transitions, 55815 flow [2021-12-06 18:40:33,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:40:33,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:40:33,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1116 transitions. [2021-12-06 18:40:33,076 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7018867924528301 [2021-12-06 18:40:33,076 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1116 transitions. [2021-12-06 18:40:33,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1116 transitions. [2021-12-06 18:40:33,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:40:33,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1116 transitions. [2021-12-06 18:40:33,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 74.4) internal successors, (1116), 15 states have internal predecessors, (1116), 0 states have call successors, (0), 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 18:40:33,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:40:33,078 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:40:33,079 INFO L186 Difference]: Start difference. First operand has 525 places, 1721 transitions, 48200 flow. Second operand 15 states and 1116 transitions. [2021-12-06 18:40:33,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 1977 transitions, 55815 flow [2021-12-06 18:40:37,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 1977 transitions, 55235 flow, removed 221 selfloop flow, removed 5 redundant places. [2021-12-06 18:40:37,921 INFO L242 Difference]: Finished difference. Result has 538 places, 1748 transitions, 49021 flow [2021-12-06 18:40:37,922 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=47756, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1721, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=49021, PETRI_PLACES=538, PETRI_TRANSITIONS=1748} [2021-12-06 18:40:37,923 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 437 predicate places. [2021-12-06 18:40:37,923 INFO L470 AbstractCegarLoop]: Abstraction has has 538 places, 1748 transitions, 49021 flow [2021-12-06 18:40:37,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:40:37,923 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:40:37,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:37,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-12-06 18:40:37,923 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:40:37,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:37,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1894826415, now seen corresponding path program 13 times [2021-12-06 18:40:37,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:40:37,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286760367] [2021-12-06 18:40:37,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:37,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:40:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:38,039 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 18:40:38,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:40:38,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286760367] [2021-12-06 18:40:38,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286760367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:38,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:38,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:40:38,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148755426] [2021-12-06 18:40:38,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:38,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:40:38,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:40:38,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:40:38,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:40:38,041 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:40:38,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 1748 transitions, 49021 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:40:38,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:40:38,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:40:38,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:40:46,978 INFO L129 PetriNetUnfolder]: 5269/13352 cut-off events. [2021-12-06 18:40:46,978 INFO L130 PetriNetUnfolder]: For 483009/483102 co-relation queries the response was YES. [2021-12-06 18:40:47,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109580 conditions, 13352 events. 5269/13352 cut-off events. For 483009/483102 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 131070 event pairs, 1059 based on Foata normal form. 31/13124 useless extension candidates. Maximal degree in co-relation 109338. Up to 4406 conditions per place. [2021-12-06 18:40:47,258 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1461 selfloop transitions, 502 changer transitions 0/2040 dead transitions. [2021-12-06 18:40:47,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 2040 transitions, 58366 flow [2021-12-06 18:40:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:40:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:40:47,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1130 transitions. [2021-12-06 18:40:47,261 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.710691823899371 [2021-12-06 18:40:47,261 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1130 transitions. [2021-12-06 18:40:47,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1130 transitions. [2021-12-06 18:40:47,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:40:47,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1130 transitions. [2021-12-06 18:40:47,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 75.33333333333333) internal successors, (1130), 15 states have internal predecessors, (1130), 0 states have call successors, (0), 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 18:40:47,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:40:47,265 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:40:47,266 INFO L186 Difference]: Start difference. First operand has 538 places, 1748 transitions, 49021 flow. Second operand 15 states and 1130 transitions. [2021-12-06 18:40:47,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 2040 transitions, 58366 flow [2021-12-06 18:40:52,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 2040 transitions, 58128 flow, removed 67 selfloop flow, removed 8 redundant places. [2021-12-06 18:40:52,363 INFO L242 Difference]: Finished difference. Result has 549 places, 1781 transitions, 52003 flow [2021-12-06 18:40:52,364 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=48783, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1748, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=469, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=52003, PETRI_PLACES=549, PETRI_TRANSITIONS=1781} [2021-12-06 18:40:52,364 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 448 predicate places. [2021-12-06 18:40:52,364 INFO L470 AbstractCegarLoop]: Abstraction has has 549 places, 1781 transitions, 52003 flow [2021-12-06 18:40:52,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:40:52,365 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:40:52,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:40:52,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-12-06 18:40:52,365 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:40:52,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:40:52,365 INFO L85 PathProgramCache]: Analyzing trace with hash -44395209, now seen corresponding path program 4 times [2021-12-06 18:40:52,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:40:52,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648558898] [2021-12-06 18:40:52,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:40:52,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:40:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:40:52,470 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 18:40:52,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:40:52,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648558898] [2021-12-06 18:40:52,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648558898] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:40:52,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:40:52,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:40:52,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248369370] [2021-12-06 18:40:52,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:40:52,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:40:52,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:40:52,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:40:52,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:40:52,472 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:40:52,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 1781 transitions, 52003 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:40:52,473 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:40:52,473 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:40:52,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:41:02,552 INFO L129 PetriNetUnfolder]: 5813/14389 cut-off events. [2021-12-06 18:41:02,552 INFO L130 PetriNetUnfolder]: For 548516/548621 co-relation queries the response was YES. [2021-12-06 18:41:02,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119026 conditions, 14389 events. 5813/14389 cut-off events. For 548516/548621 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 140509 event pairs, 1667 based on Foata normal form. 39/14178 useless extension candidates. Maximal degree in co-relation 118779. Up to 5314 conditions per place. [2021-12-06 18:41:02,867 INFO L132 encePairwiseOnDemand]: 85/106 looper letters, 1462 selfloop transitions, 523 changer transitions 1/2052 dead transitions. [2021-12-06 18:41:02,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 2052 transitions, 60265 flow [2021-12-06 18:41:02,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:41:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:41:02,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1108 transitions. [2021-12-06 18:41:02,869 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6968553459119496 [2021-12-06 18:41:02,869 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1108 transitions. [2021-12-06 18:41:02,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1108 transitions. [2021-12-06 18:41:02,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:41:02,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1108 transitions. [2021-12-06 18:41:02,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.86666666666666) internal successors, (1108), 15 states have internal predecessors, (1108), 0 states have call successors, (0), 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 18:41:02,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:41:02,872 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:41:02,872 INFO L186 Difference]: Start difference. First operand has 549 places, 1781 transitions, 52003 flow. Second operand 15 states and 1108 transitions. [2021-12-06 18:41:02,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 2052 transitions, 60265 flow [2021-12-06 18:41:08,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 2052 transitions, 59712 flow, removed 67 selfloop flow, removed 8 redundant places. [2021-12-06 18:41:08,051 INFO L242 Difference]: Finished difference. Result has 561 places, 1819 transitions, 54013 flow [2021-12-06 18:41:08,052 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=51450, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=485, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=54013, PETRI_PLACES=561, PETRI_TRANSITIONS=1819} [2021-12-06 18:41:08,052 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 460 predicate places. [2021-12-06 18:41:08,053 INFO L470 AbstractCegarLoop]: Abstraction has has 561 places, 1819 transitions, 54013 flow [2021-12-06 18:41:08,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:41:08,053 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:41:08,053 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:41:08,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-12-06 18:41:08,053 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:41:08,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:41:08,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1856759421, now seen corresponding path program 5 times [2021-12-06 18:41:08,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:41:08,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706059771] [2021-12-06 18:41:08,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:41:08,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:41:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:41:08,174 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 18:41:08,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:41:08,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706059771] [2021-12-06 18:41:08,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706059771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:41:08,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:41:08,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:41:08,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211441205] [2021-12-06 18:41:08,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:41:08,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:41:08,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:41:08,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:41:08,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:41:08,175 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:41:08,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 1819 transitions, 54013 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:41:08,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:41:08,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:41:08,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:41:18,760 INFO L129 PetriNetUnfolder]: 5852/14454 cut-off events. [2021-12-06 18:41:18,760 INFO L130 PetriNetUnfolder]: For 565050/565155 co-relation queries the response was YES. [2021-12-06 18:41:19,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121737 conditions, 14454 events. 5852/14454 cut-off events. For 565050/565155 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 141258 event pairs, 1730 based on Foata normal form. 28/14231 useless extension candidates. Maximal degree in co-relation 121484. Up to 5543 conditions per place. [2021-12-06 18:41:19,073 INFO L132 encePairwiseOnDemand]: 85/106 looper letters, 1414 selfloop transitions, 552 changer transitions 0/2032 dead transitions. [2021-12-06 18:41:19,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 2032 transitions, 61213 flow [2021-12-06 18:41:19,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:41:19,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:41:19,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1037 transitions. [2021-12-06 18:41:19,075 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6987870619946092 [2021-12-06 18:41:19,075 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1037 transitions. [2021-12-06 18:41:19,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1037 transitions. [2021-12-06 18:41:19,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:41:19,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1037 transitions. [2021-12-06 18:41:19,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 74.07142857142857) internal successors, (1037), 14 states have internal predecessors, (1037), 0 states have call successors, (0), 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 18:41:19,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:41:19,079 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:41:19,079 INFO L186 Difference]: Start difference. First operand has 561 places, 1819 transitions, 54013 flow. Second operand 14 states and 1037 transitions. [2021-12-06 18:41:19,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 2032 transitions, 61213 flow [2021-12-06 18:41:24,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 2032 transitions, 60942 flow, removed 93 selfloop flow, removed 7 redundant places. [2021-12-06 18:41:24,658 INFO L242 Difference]: Finished difference. Result has 572 places, 1834 transitions, 56119 flow [2021-12-06 18:41:24,659 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=53758, PETRI_DIFFERENCE_MINUEND_PLACES=554, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=537, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=56119, PETRI_PLACES=572, PETRI_TRANSITIONS=1834} [2021-12-06 18:41:24,659 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 471 predicate places. [2021-12-06 18:41:24,659 INFO L470 AbstractCegarLoop]: Abstraction has has 572 places, 1834 transitions, 56119 flow [2021-12-06 18:41:24,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:41:24,660 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:41:24,660 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:41:24,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-12-06 18:41:24,660 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:41:24,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:41:24,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1356082477, now seen corresponding path program 6 times [2021-12-06 18:41:24,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:41:24,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525995686] [2021-12-06 18:41:24,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:41:24,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:41:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:41:24,756 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 18:41:24,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:41:24,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525995686] [2021-12-06 18:41:24,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525995686] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:41:24,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:41:24,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:41:24,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758456153] [2021-12-06 18:41:24,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:41:24,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:41:24,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:41:24,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:41:24,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:41:24,758 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:41:24,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 1834 transitions, 56119 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:41:24,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:41:24,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:41:24,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:41:35,273 INFO L129 PetriNetUnfolder]: 5870/14519 cut-off events. [2021-12-06 18:41:35,273 INFO L130 PetriNetUnfolder]: For 586415/586520 co-relation queries the response was YES. [2021-12-06 18:41:35,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124792 conditions, 14519 events. 5870/14519 cut-off events. For 586415/586520 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 142192 event pairs, 1722 based on Foata normal form. 39/14307 useless extension candidates. Maximal degree in co-relation 124534. Up to 5498 conditions per place. [2021-12-06 18:41:35,589 INFO L132 encePairwiseOnDemand]: 85/106 looper letters, 1440 selfloop transitions, 566 changer transitions 0/2072 dead transitions. [2021-12-06 18:41:35,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 586 places, 2072 transitions, 63901 flow [2021-12-06 18:41:35,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:41:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:41:35,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1108 transitions. [2021-12-06 18:41:35,591 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6968553459119496 [2021-12-06 18:41:35,591 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1108 transitions. [2021-12-06 18:41:35,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1108 transitions. [2021-12-06 18:41:35,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:41:35,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1108 transitions. [2021-12-06 18:41:35,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 73.86666666666666) internal successors, (1108), 15 states have internal predecessors, (1108), 0 states have call successors, (0), 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 18:41:35,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:41:35,593 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:41:35,594 INFO L186 Difference]: Start difference. First operand has 572 places, 1834 transitions, 56119 flow. Second operand 15 states and 1108 transitions. [2021-12-06 18:41:35,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 586 places, 2072 transitions, 63901 flow [2021-12-06 18:41:41,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 2072 transitions, 63800 flow, removed 8 selfloop flow, removed 7 redundant places. [2021-12-06 18:41:41,580 INFO L242 Difference]: Finished difference. Result has 583 places, 1856 transitions, 58128 flow [2021-12-06 18:41:41,582 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=56018, PETRI_DIFFERENCE_MINUEND_PLACES=565, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1834, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=544, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=58128, PETRI_PLACES=583, PETRI_TRANSITIONS=1856} [2021-12-06 18:41:41,582 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 482 predicate places. [2021-12-06 18:41:41,582 INFO L470 AbstractCegarLoop]: Abstraction has has 583 places, 1856 transitions, 58128 flow [2021-12-06 18:41:41,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:41:41,582 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:41:41,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:41:41,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-12-06 18:41:41,582 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:41:41,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:41:41,583 INFO L85 PathProgramCache]: Analyzing trace with hash 49958354, now seen corresponding path program 7 times [2021-12-06 18:41:41,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:41:41,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312782853] [2021-12-06 18:41:41,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:41:41,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:41:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:41:41,697 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 18:41:41,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:41:41,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312782853] [2021-12-06 18:41:41,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312782853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:41:41,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:41:41,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:41:41,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900947777] [2021-12-06 18:41:41,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:41:41,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:41:41,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:41:41,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:41:41,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:41:41,698 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:41:41,699 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 1856 transitions, 58128 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:41:41,699 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:41:41,699 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:41:41,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:41:52,669 INFO L129 PetriNetUnfolder]: 6057/14957 cut-off events. [2021-12-06 18:41:52,669 INFO L130 PetriNetUnfolder]: For 606319/606395 co-relation queries the response was YES. [2021-12-06 18:41:52,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128676 conditions, 14957 events. 6057/14957 cut-off events. For 606319/606395 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 146599 event pairs, 1484 based on Foata normal form. 35/14709 useless extension candidates. Maximal degree in co-relation 128414. Up to 9748 conditions per place. [2021-12-06 18:41:53,004 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1114 selfloop transitions, 890 changer transitions 6/2075 dead transitions. [2021-12-06 18:41:53,004 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 2075 transitions, 67595 flow [2021-12-06 18:41:53,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:41:53,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 18:41:53,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 902 transitions. [2021-12-06 18:41:53,006 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7091194968553459 [2021-12-06 18:41:53,006 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 902 transitions. [2021-12-06 18:41:53,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 902 transitions. [2021-12-06 18:41:53,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:41:53,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 902 transitions. [2021-12-06 18:41:53,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 75.16666666666667) internal successors, (902), 12 states have internal predecessors, (902), 0 states have call successors, (0), 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 18:41:53,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 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 18:41:53,008 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 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 18:41:53,008 INFO L186 Difference]: Start difference. First operand has 583 places, 1856 transitions, 58128 flow. Second operand 12 states and 902 transitions. [2021-12-06 18:41:53,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 2075 transitions, 67595 flow [2021-12-06 18:41:59,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 585 places, 2075 transitions, 67044 flow, removed 68 selfloop flow, removed 9 redundant places. [2021-12-06 18:41:59,649 INFO L242 Difference]: Finished difference. Result has 589 places, 1874 transitions, 61069 flow [2021-12-06 18:41:59,650 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=57622, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1856, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=872, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=969, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=61069, PETRI_PLACES=589, PETRI_TRANSITIONS=1874} [2021-12-06 18:41:59,650 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 488 predicate places. [2021-12-06 18:41:59,650 INFO L470 AbstractCegarLoop]: Abstraction has has 589 places, 1874 transitions, 61069 flow [2021-12-06 18:41:59,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:41:59,651 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:41:59,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:41:59,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-12-06 18:41:59,651 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:41:59,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:41:59,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1424778822, now seen corresponding path program 8 times [2021-12-06 18:41:59,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:41:59,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692321371] [2021-12-06 18:41:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:41:59,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:41:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:41:59,742 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 18:41:59,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:41:59,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692321371] [2021-12-06 18:41:59,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692321371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:41:59,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:41:59,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:41:59,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268864866] [2021-12-06 18:41:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:41:59,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:41:59,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:41:59,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:41:59,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:41:59,745 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:41:59,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 1874 transitions, 61069 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:41:59,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:41:59,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:41:59,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:10,885 INFO L129 PetriNetUnfolder]: 6139/15158 cut-off events. [2021-12-06 18:42:10,886 INFO L130 PetriNetUnfolder]: For 651487/651604 co-relation queries the response was YES. [2021-12-06 18:42:11,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134680 conditions, 15158 events. 6139/15158 cut-off events. For 651487/651604 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 148772 event pairs, 1513 based on Foata normal form. 65/14937 useless extension candidates. Maximal degree in co-relation 134414. Up to 10040 conditions per place. [2021-12-06 18:42:11,252 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1759 selfloop transitions, 331 changer transitions 7/2162 dead transitions. [2021-12-06 18:42:11,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 2162 transitions, 70794 flow [2021-12-06 18:42:11,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:42:11,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:42:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1060 transitions. [2021-12-06 18:42:11,254 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2021-12-06 18:42:11,254 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1060 transitions. [2021-12-06 18:42:11,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1060 transitions. [2021-12-06 18:42:11,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:11,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1060 transitions. [2021-12-06 18:42:11,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 75.71428571428571) internal successors, (1060), 14 states have internal predecessors, (1060), 0 states have call successors, (0), 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 18:42:11,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:42:11,256 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:42:11,256 INFO L186 Difference]: Start difference. First operand has 589 places, 1874 transitions, 61069 flow. Second operand 14 states and 1060 transitions. [2021-12-06 18:42:11,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 2162 transitions, 70794 flow [2021-12-06 18:42:18,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 2162 transitions, 70202 flow, removed 37 selfloop flow, removed 6 redundant places. [2021-12-06 18:42:18,311 INFO L242 Difference]: Finished difference. Result has 601 places, 1931 transitions, 62925 flow [2021-12-06 18:42:18,312 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=60537, PETRI_DIFFERENCE_MINUEND_PLACES=583, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1874, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=62925, PETRI_PLACES=601, PETRI_TRANSITIONS=1931} [2021-12-06 18:42:18,312 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 500 predicate places. [2021-12-06 18:42:18,312 INFO L470 AbstractCegarLoop]: Abstraction has has 601 places, 1931 transitions, 62925 flow [2021-12-06 18:42:18,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:42:18,313 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:18,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:18,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-12-06 18:42:18,313 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:42:18,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:18,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1396651598, now seen corresponding path program 9 times [2021-12-06 18:42:18,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:18,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199059957] [2021-12-06 18:42:18,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:18,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:18,438 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 18:42:18,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:18,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199059957] [2021-12-06 18:42:18,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199059957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:18,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:18,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:42:18,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66721604] [2021-12-06 18:42:18,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:18,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:42:18,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:18,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:42:18,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:42:18,440 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:42:18,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 1931 transitions, 62925 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:42:18,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:18,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:42:18,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:29,879 INFO L129 PetriNetUnfolder]: 6197/15291 cut-off events. [2021-12-06 18:42:29,880 INFO L130 PetriNetUnfolder]: For 688596/688688 co-relation queries the response was YES. [2021-12-06 18:42:30,190 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138822 conditions, 15291 events. 6197/15291 cut-off events. For 688596/688688 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 150489 event pairs, 1497 based on Foata normal form. 35/15043 useless extension candidates. Maximal degree in co-relation 138551. Up to 9923 conditions per place. [2021-12-06 18:42:30,261 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1167 selfloop transitions, 922 changer transitions 6/2160 dead transitions. [2021-12-06 18:42:30,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 2160 transitions, 72900 flow [2021-12-06 18:42:30,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 18:42:30,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 18:42:30,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 967 transitions. [2021-12-06 18:42:30,263 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7017416545718432 [2021-12-06 18:42:30,263 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 967 transitions. [2021-12-06 18:42:30,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 967 transitions. [2021-12-06 18:42:30,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:30,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 967 transitions. [2021-12-06 18:42:30,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.38461538461539) internal successors, (967), 13 states have internal predecessors, (967), 0 states have call successors, (0), 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 18:42:30,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 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 18:42:30,265 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 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 18:42:30,265 INFO L186 Difference]: Start difference. First operand has 601 places, 1931 transitions, 62925 flow. Second operand 13 states and 967 transitions. [2021-12-06 18:42:30,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 2160 transitions, 72900 flow [2021-12-06 18:42:38,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 608 places, 2160 transitions, 72429 flow, removed 202 selfloop flow, removed 5 redundant places. [2021-12-06 18:42:38,474 INFO L242 Difference]: Finished difference. Result has 613 places, 1955 transitions, 66467 flow [2021-12-06 18:42:38,476 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=62504, PETRI_DIFFERENCE_MINUEND_PLACES=596, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1931, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=900, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1017, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=66467, PETRI_PLACES=613, PETRI_TRANSITIONS=1955} [2021-12-06 18:42:38,476 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 512 predicate places. [2021-12-06 18:42:38,476 INFO L470 AbstractCegarLoop]: Abstraction has has 613 places, 1955 transitions, 66467 flow [2021-12-06 18:42:38,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:42:38,476 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:38,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:38,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-12-06 18:42:38,477 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:42:38,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:38,477 INFO L85 PathProgramCache]: Analyzing trace with hash -87949803, now seen corresponding path program 7 times [2021-12-06 18:42:38,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:38,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51626829] [2021-12-06 18:42:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:38,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:38,600 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 18:42:38,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:38,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51626829] [2021-12-06 18:42:38,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51626829] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:38,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:38,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:42:38,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814522243] [2021-12-06 18:42:38,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:38,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:42:38,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:38,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:42:38,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:42:38,602 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:42:38,603 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 1955 transitions, 66467 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:42:38,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:38,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:42:38,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:42:50,277 INFO L129 PetriNetUnfolder]: 5838/14989 cut-off events. [2021-12-06 18:42:50,277 INFO L130 PetriNetUnfolder]: For 732462/732646 co-relation queries the response was YES. [2021-12-06 18:42:50,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141028 conditions, 14989 events. 5838/14989 cut-off events. For 732462/732646 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 151008 event pairs, 848 based on Foata normal form. 59/14792 useless extension candidates. Maximal degree in co-relation 140752. Up to 8200 conditions per place. [2021-12-06 18:42:50,676 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1901 selfloop transitions, 318 changer transitions 2/2312 dead transitions. [2021-12-06 18:42:50,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 2312 transitions, 77994 flow [2021-12-06 18:42:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:42:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:42:50,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1121 transitions. [2021-12-06 18:42:50,678 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7553908355795148 [2021-12-06 18:42:50,678 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1121 transitions. [2021-12-06 18:42:50,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1121 transitions. [2021-12-06 18:42:50,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:42:50,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1121 transitions. [2021-12-06 18:42:50,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 80.07142857142857) internal successors, (1121), 14 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 18:42:50,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:42:50,680 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:42:50,680 INFO L186 Difference]: Start difference. First operand has 613 places, 1955 transitions, 66467 flow. Second operand 14 states and 1121 transitions. [2021-12-06 18:42:50,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 2312 transitions, 77994 flow [2021-12-06 18:42:58,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 2312 transitions, 77247 flow, removed 28 selfloop flow, removed 7 redundant places. [2021-12-06 18:42:58,660 INFO L242 Difference]: Finished difference. Result has 626 places, 2021 transitions, 68563 flow [2021-12-06 18:42:58,661 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=65753, PETRI_DIFFERENCE_MINUEND_PLACES=606, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1955, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1652, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=68563, PETRI_PLACES=626, PETRI_TRANSITIONS=2021} [2021-12-06 18:42:58,662 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 525 predicate places. [2021-12-06 18:42:58,662 INFO L470 AbstractCegarLoop]: Abstraction has has 626 places, 2021 transitions, 68563 flow [2021-12-06 18:42:58,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:42:58,662 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:42:58,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:42:58,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-12-06 18:42:58,662 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:42:58,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:42:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash 738541394, now seen corresponding path program 10 times [2021-12-06 18:42:58,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:42:58,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945052034] [2021-12-06 18:42:58,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:42:58,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:42:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:42:58,765 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 18:42:58,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:42:58,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945052034] [2021-12-06 18:42:58,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945052034] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:42:58,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:42:58,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:42:58,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846560916] [2021-12-06 18:42:58,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:42:58,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:42:58,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:42:58,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:42:58,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:42:58,767 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:42:58,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 2021 transitions, 68563 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:42:58,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:42:58,767 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:42:58,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:43:12,241 INFO L129 PetriNetUnfolder]: 6692/16464 cut-off events. [2021-12-06 18:43:12,241 INFO L130 PetriNetUnfolder]: For 801071/801241 co-relation queries the response was YES. [2021-12-06 18:43:12,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155851 conditions, 16464 events. 6692/16464 cut-off events. For 801071/801241 co-relation queries the response was YES. Maximal size of possible extension queue 670. Compared 163827 event pairs, 1611 based on Foata normal form. 87/16245 useless extension candidates. Maximal degree in co-relation 155568. Up to 10595 conditions per place. [2021-12-06 18:43:12,728 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1316 selfloop transitions, 926 changer transitions 5/2312 dead transitions. [2021-12-06 18:43:12,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 2312 transitions, 80446 flow [2021-12-06 18:43:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:43:12,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:43:12,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1033 transitions. [2021-12-06 18:43:12,730 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6960916442048517 [2021-12-06 18:43:12,730 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1033 transitions. [2021-12-06 18:43:12,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1033 transitions. [2021-12-06 18:43:12,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:43:12,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1033 transitions. [2021-12-06 18:43:12,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.78571428571429) internal successors, (1033), 14 states have internal predecessors, (1033), 0 states have call successors, (0), 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 18:43:12,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:43:12,732 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:43:12,732 INFO L186 Difference]: Start difference. First operand has 626 places, 2021 transitions, 68563 flow. Second operand 14 states and 1033 transitions. [2021-12-06 18:43:12,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 2312 transitions, 80446 flow [2021-12-06 18:43:22,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 2312 transitions, 80182 flow, removed 108 selfloop flow, removed 4 redundant places. [2021-12-06 18:43:22,510 INFO L242 Difference]: Finished difference. Result has 642 places, 2079 transitions, 72771 flow [2021-12-06 18:43:22,512 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=68299, PETRI_DIFFERENCE_MINUEND_PLACES=622, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2021, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=870, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=72771, PETRI_PLACES=642, PETRI_TRANSITIONS=2079} [2021-12-06 18:43:22,512 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 541 predicate places. [2021-12-06 18:43:22,512 INFO L470 AbstractCegarLoop]: Abstraction has has 642 places, 2079 transitions, 72771 flow [2021-12-06 18:43:22,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:43:22,512 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:43:22,512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:43:22,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-12-06 18:43:22,513 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:43:22,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:43:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1382833587, now seen corresponding path program 8 times [2021-12-06 18:43:22,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:43:22,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516454775] [2021-12-06 18:43:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:43:22,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:43:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:43:22,636 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 18:43:22,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:43:22,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516454775] [2021-12-06 18:43:22,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516454775] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:43:22,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:43:22,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:43:22,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029532437] [2021-12-06 18:43:22,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:43:22,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:43:22,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:43:22,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:43:22,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:43:22,638 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:43:22,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 2079 transitions, 72771 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:43:22,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:43:22,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:43:22,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:43:36,050 INFO L129 PetriNetUnfolder]: 6266/15982 cut-off events. [2021-12-06 18:43:36,050 INFO L130 PetriNetUnfolder]: For 853935/854175 co-relation queries the response was YES. [2021-12-06 18:43:36,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157600 conditions, 15982 events. 6266/15982 cut-off events. For 853935/854175 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 162841 event pairs, 717 based on Foata normal form. 65/15774 useless extension candidates. Maximal degree in co-relation 157310. Up to 8780 conditions per place. [2021-12-06 18:43:36,548 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 1838 selfloop transitions, 508 changer transitions 2/2442 dead transitions. [2021-12-06 18:43:36,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 655 places, 2442 transitions, 85787 flow [2021-12-06 18:43:36,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:43:36,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:43:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1074 transitions. [2021-12-06 18:43:36,549 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7237196765498652 [2021-12-06 18:43:36,549 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1074 transitions. [2021-12-06 18:43:36,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1074 transitions. [2021-12-06 18:43:36,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:43:36,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1074 transitions. [2021-12-06 18:43:36,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 76.71428571428571) internal successors, (1074), 14 states have internal predecessors, (1074), 0 states have call successors, (0), 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 18:43:36,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:43:36,552 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:43:36,552 INFO L186 Difference]: Start difference. First operand has 642 places, 2079 transitions, 72771 flow. Second operand 14 states and 1074 transitions. [2021-12-06 18:43:36,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 655 places, 2442 transitions, 85787 flow [2021-12-06 18:43:46,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 647 places, 2442 transitions, 84530 flow, removed 228 selfloop flow, removed 8 redundant places. [2021-12-06 18:43:46,738 INFO L242 Difference]: Finished difference. Result has 655 places, 2148 transitions, 75842 flow [2021-12-06 18:43:46,740 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=71544, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2079, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=440, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=75842, PETRI_PLACES=655, PETRI_TRANSITIONS=2148} [2021-12-06 18:43:46,740 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 554 predicate places. [2021-12-06 18:43:46,740 INFO L470 AbstractCegarLoop]: Abstraction has has 655 places, 2148 transitions, 75842 flow [2021-12-06 18:43:46,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:43:46,740 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:43:46,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:43:46,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-12-06 18:43:46,741 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:43:46,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:43:46,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1342491804, now seen corresponding path program 11 times [2021-12-06 18:43:46,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:43:46,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563663965] [2021-12-06 18:43:46,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:43:46,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:43:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:43:46,835 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 18:43:46,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:43:46,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563663965] [2021-12-06 18:43:46,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563663965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:43:46,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:43:46,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:43:46,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358631554] [2021-12-06 18:43:46,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:43:46,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:43:46,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:43:46,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:43:46,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:43:46,837 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:43:46,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 2148 transitions, 75842 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:43:46,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:43:46,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:43:46,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:44:02,147 INFO L129 PetriNetUnfolder]: 7240/17780 cut-off events. [2021-12-06 18:44:02,147 INFO L130 PetriNetUnfolder]: For 946766/946900 co-relation queries the response was YES. [2021-12-06 18:44:02,629 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175851 conditions, 17780 events. 7240/17780 cut-off events. For 946766/946900 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 179075 event pairs, 1812 based on Foata normal form. 69/17518 useless extension candidates. Maximal degree in co-relation 175555. Up to 11230 conditions per place. [2021-12-06 18:44:02,729 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1427 selfloop transitions, 957 changer transitions 4/2453 dead transitions. [2021-12-06 18:44:02,729 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 2453 transitions, 88567 flow [2021-12-06 18:44:02,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:44:02,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:44:02,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1027 transitions. [2021-12-06 18:44:02,730 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6920485175202157 [2021-12-06 18:44:02,730 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1027 transitions. [2021-12-06 18:44:02,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1027 transitions. [2021-12-06 18:44:02,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:44:02,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1027 transitions. [2021-12-06 18:44:02,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 73.35714285714286) internal successors, (1027), 14 states have internal predecessors, (1027), 0 states have call successors, (0), 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 18:44:02,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:44:02,733 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:44:02,733 INFO L186 Difference]: Start difference. First operand has 655 places, 2148 transitions, 75842 flow. Second operand 14 states and 1027 transitions. [2021-12-06 18:44:02,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 668 places, 2453 transitions, 88567 flow [2021-12-06 18:44:14,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 662 places, 2453 transitions, 88026 flow, removed 140 selfloop flow, removed 6 redundant places. [2021-12-06 18:44:14,970 INFO L242 Difference]: Finished difference. Result has 670 places, 2222 transitions, 80901 flow [2021-12-06 18:44:14,972 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=75301, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=888, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=80901, PETRI_PLACES=670, PETRI_TRANSITIONS=2222} [2021-12-06 18:44:14,972 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 569 predicate places. [2021-12-06 18:44:14,972 INFO L470 AbstractCegarLoop]: Abstraction has has 670 places, 2222 transitions, 80901 flow [2021-12-06 18:44:14,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:44:14,972 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:44:14,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:44:14,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-12-06 18:44:14,972 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:44:14,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:44:14,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1569289461, now seen corresponding path program 9 times [2021-12-06 18:44:14,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:44:14,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290038978] [2021-12-06 18:44:14,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:44:14,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:44:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:44:15,090 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 18:44:15,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:44:15,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290038978] [2021-12-06 18:44:15,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290038978] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:44:15,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:44:15,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:44:15,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354941035] [2021-12-06 18:44:15,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:44:15,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:44:15,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:44:15,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:44:15,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:44:15,092 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:44:15,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 670 places, 2222 transitions, 80901 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:44:15,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:44:15,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:44:15,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:44:29,987 INFO L129 PetriNetUnfolder]: 6471/16522 cut-off events. [2021-12-06 18:44:29,987 INFO L130 PetriNetUnfolder]: For 965824/966083 co-relation queries the response was YES. [2021-12-06 18:44:30,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169437 conditions, 16522 events. 6471/16522 cut-off events. For 965824/966083 co-relation queries the response was YES. Maximal size of possible extension queue 712. Compared 168891 event pairs, 990 based on Foata normal form. 66/16312 useless extension candidates. Maximal degree in co-relation 169135. Up to 8200 conditions per place. [2021-12-06 18:44:30,460 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 2024 selfloop transitions, 352 changer transitions 2/2475 dead transitions. [2021-12-06 18:44:30,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 683 places, 2475 transitions, 90038 flow [2021-12-06 18:44:30,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:44:30,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:44:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1081 transitions. [2021-12-06 18:44:30,461 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7284366576819407 [2021-12-06 18:44:30,462 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1081 transitions. [2021-12-06 18:44:30,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1081 transitions. [2021-12-06 18:44:30,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:44:30,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1081 transitions. [2021-12-06 18:44:30,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 77.21428571428571) internal successors, (1081), 14 states have internal predecessors, (1081), 0 states have call successors, (0), 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 18:44:30,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:44:30,464 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:44:30,464 INFO L186 Difference]: Start difference. First operand has 670 places, 2222 transitions, 80901 flow. Second operand 14 states and 1081 transitions. [2021-12-06 18:44:30,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 683 places, 2475 transitions, 90038 flow [2021-12-06 18:44:43,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 681 places, 2475 transitions, 89423 flow, removed 306 selfloop flow, removed 2 redundant places. [2021-12-06 18:44:43,155 INFO L242 Difference]: Finished difference. Result has 686 places, 2239 transitions, 81659 flow [2021-12-06 18:44:43,157 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=80286, PETRI_DIFFERENCE_MINUEND_PLACES=668, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=335, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1870, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=81659, PETRI_PLACES=686, PETRI_TRANSITIONS=2239} [2021-12-06 18:44:43,157 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 585 predicate places. [2021-12-06 18:44:43,157 INFO L470 AbstractCegarLoop]: Abstraction has has 686 places, 2239 transitions, 81659 flow [2021-12-06 18:44:43,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:44:43,158 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:44:43,158 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:44:43,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-12-06 18:44:43,158 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:44:43,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:44:43,158 INFO L85 PathProgramCache]: Analyzing trace with hash 843474338, now seen corresponding path program 12 times [2021-12-06 18:44:43,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:44:43,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047781087] [2021-12-06 18:44:43,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:44:43,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:44:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:44:43,260 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 18:44:43,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:44:43,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047781087] [2021-12-06 18:44:43,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047781087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:44:43,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:44:43,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:44:43,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803149782] [2021-12-06 18:44:43,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:44:43,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:44:43,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:44:43,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:44:43,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:44:43,262 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:44:43,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 686 places, 2239 transitions, 81659 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:44:43,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:44:43,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:44:43,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:44:59,280 INFO L129 PetriNetUnfolder]: 7315/17914 cut-off events. [2021-12-06 18:44:59,280 INFO L130 PetriNetUnfolder]: For 1044334/1044559 co-relation queries the response was YES. [2021-12-06 18:44:59,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184237 conditions, 17914 events. 7315/17914 cut-off events. For 1044334/1044559 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 180256 event pairs, 1860 based on Foata normal form. 71/17652 useless extension candidates. Maximal degree in co-relation 183929. Up to 10040 conditions per place. [2021-12-06 18:44:59,833 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1883 selfloop transitions, 482 changer transitions 7/2437 dead transitions. [2021-12-06 18:44:59,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 698 places, 2437 transitions, 90472 flow [2021-12-06 18:44:59,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 18:44:59,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 18:44:59,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1009 transitions. [2021-12-06 18:44:59,835 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7322206095791002 [2021-12-06 18:44:59,835 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1009 transitions. [2021-12-06 18:44:59,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1009 transitions. [2021-12-06 18:44:59,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:44:59,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1009 transitions. [2021-12-06 18:44:59,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.61538461538461) internal successors, (1009), 13 states have internal predecessors, (1009), 0 states have call successors, (0), 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 18:44:59,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 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 18:44:59,837 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 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 18:44:59,837 INFO L186 Difference]: Start difference. First operand has 686 places, 2239 transitions, 81659 flow. Second operand 13 states and 1009 transitions. [2021-12-06 18:44:59,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 698 places, 2437 transitions, 90472 flow [2021-12-06 18:45:13,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 693 places, 2437 transitions, 89939 flow, removed 132 selfloop flow, removed 5 redundant places. [2021-12-06 18:45:13,575 INFO L242 Difference]: Finished difference. Result has 699 places, 2283 transitions, 83995 flow [2021-12-06 18:45:13,577 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=81126, PETRI_DIFFERENCE_MINUEND_PLACES=681, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=438, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1763, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=83995, PETRI_PLACES=699, PETRI_TRANSITIONS=2283} [2021-12-06 18:45:13,577 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 598 predicate places. [2021-12-06 18:45:13,577 INFO L470 AbstractCegarLoop]: Abstraction has has 699 places, 2283 transitions, 83995 flow [2021-12-06 18:45:13,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:45:13,577 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:45:13,577 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:45:13,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-12-06 18:45:13,577 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:45:13,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:45:13,578 INFO L85 PathProgramCache]: Analyzing trace with hash -755677595, now seen corresponding path program 7 times [2021-12-06 18:45:13,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:45:13,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063716378] [2021-12-06 18:45:13,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:45:13,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:45:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:45:13,676 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 18:45:13,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:45:13,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063716378] [2021-12-06 18:45:13,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063716378] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:45:13,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:45:13,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:45:13,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75292104] [2021-12-06 18:45:13,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:45:13,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:45:13,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:45:13,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:45:13,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:45:13,678 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:45:13,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 699 places, 2283 transitions, 83995 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:45:13,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:45:13,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:45:13,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:45:29,895 INFO L129 PetriNetUnfolder]: 7048/17496 cut-off events. [2021-12-06 18:45:29,895 INFO L130 PetriNetUnfolder]: For 1066793/1067039 co-relation queries the response was YES. [2021-12-06 18:45:30,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184362 conditions, 17496 events. 7048/17496 cut-off events. For 1066793/1067039 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 177008 event pairs, 1665 based on Foata normal form. 86/17302 useless extension candidates. Maximal degree in co-relation 184048. Up to 9954 conditions per place. [2021-12-06 18:45:30,388 INFO L132 encePairwiseOnDemand]: 85/106 looper letters, 2166 selfloop transitions, 318 changer transitions 2/2576 dead transitions. [2021-12-06 18:45:30,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 713 places, 2576 transitions, 94891 flow [2021-12-06 18:45:30,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 18:45:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-12-06 18:45:30,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1086 transitions. [2021-12-06 18:45:30,390 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6830188679245283 [2021-12-06 18:45:30,390 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1086 transitions. [2021-12-06 18:45:30,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1086 transitions. [2021-12-06 18:45:30,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:45:30,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1086 transitions. [2021-12-06 18:45:30,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 72.4) internal successors, (1086), 15 states have internal predecessors, (1086), 0 states have call successors, (0), 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 18:45:30,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:45:30,392 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 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 18:45:30,392 INFO L186 Difference]: Start difference. First operand has 699 places, 2283 transitions, 83995 flow. Second operand 15 states and 1086 transitions. [2021-12-06 18:45:30,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 713 places, 2576 transitions, 94891 flow [2021-12-06 18:45:44,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 708 places, 2576 transitions, 94486 flow, removed 77 selfloop flow, removed 5 redundant places. [2021-12-06 18:45:44,284 INFO L242 Difference]: Finished difference. Result has 713 places, 2296 transitions, 84758 flow [2021-12-06 18:45:44,286 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=83642, PETRI_DIFFERENCE_MINUEND_PLACES=694, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=305, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1970, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=84758, PETRI_PLACES=713, PETRI_TRANSITIONS=2296} [2021-12-06 18:45:44,286 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 612 predicate places. [2021-12-06 18:45:44,286 INFO L470 AbstractCegarLoop]: Abstraction has has 713 places, 2296 transitions, 84758 flow [2021-12-06 18:45:44,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:45:44,286 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:45:44,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:45:44,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-12-06 18:45:44,286 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:45:44,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:45:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash 867084540, now seen corresponding path program 13 times [2021-12-06 18:45:44,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:45:44,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700333466] [2021-12-06 18:45:44,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:45:44,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:45:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:45:44,382 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 18:45:44,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:45:44,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700333466] [2021-12-06 18:45:44,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700333466] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:45:44,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:45:44,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:45:44,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200699110] [2021-12-06 18:45:44,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:45:44,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:45:44,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:45:44,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:45:44,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:45:44,384 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:45:44,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 713 places, 2296 transitions, 84758 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:45:44,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:45:44,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:45:44,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:46:00,933 INFO L129 PetriNetUnfolder]: 7331/17988 cut-off events. [2021-12-06 18:46:00,933 INFO L130 PetriNetUnfolder]: For 1103334/1103565 co-relation queries the response was YES. [2021-12-06 18:46:01,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189985 conditions, 17988 events. 7331/17988 cut-off events. For 1103334/1103565 co-relation queries the response was YES. Maximal size of possible extension queue 729. Compared 181310 event pairs, 1841 based on Foata normal form. 81/17735 useless extension candidates. Maximal degree in co-relation 189666. Up to 10042 conditions per place. [2021-12-06 18:46:01,466 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1915 selfloop transitions, 503 changer transitions 7/2493 dead transitions. [2021-12-06 18:46:01,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 726 places, 2493 transitions, 94151 flow [2021-12-06 18:46:01,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:46:01,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:46:01,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1076 transitions. [2021-12-06 18:46:01,468 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7250673854447439 [2021-12-06 18:46:01,468 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1076 transitions. [2021-12-06 18:46:01,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1076 transitions. [2021-12-06 18:46:01,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:46:01,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1076 transitions. [2021-12-06 18:46:01,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 76.85714285714286) internal successors, (1076), 14 states have internal predecessors, (1076), 0 states have call successors, (0), 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 18:46:01,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:46:01,470 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:46:01,470 INFO L186 Difference]: Start difference. First operand has 713 places, 2296 transitions, 84758 flow. Second operand 14 states and 1076 transitions. [2021-12-06 18:46:01,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 726 places, 2493 transitions, 94151 flow [2021-12-06 18:46:16,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 720 places, 2493 transitions, 93922 flow, removed 63 selfloop flow, removed 6 redundant places. [2021-12-06 18:46:16,172 INFO L242 Difference]: Finished difference. Result has 725 places, 2333 transitions, 87656 flow [2021-12-06 18:46:16,174 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=84608, PETRI_DIFFERENCE_MINUEND_PLACES=707, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=466, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1797, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=87656, PETRI_PLACES=725, PETRI_TRANSITIONS=2333} [2021-12-06 18:46:16,174 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 624 predicate places. [2021-12-06 18:46:16,174 INFO L470 AbstractCegarLoop]: Abstraction has has 725 places, 2333 transitions, 87656 flow [2021-12-06 18:46:16,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:46:16,174 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:46:16,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:46:16,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-12-06 18:46:16,175 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:46:16,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:46:16,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1330979859, now seen corresponding path program 10 times [2021-12-06 18:46:16,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:46:16,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833524066] [2021-12-06 18:46:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:46:16,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:46:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:16,289 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 18:46:16,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:46:16,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833524066] [2021-12-06 18:46:16,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833524066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:46:16,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:46:16,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:46:16,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522094396] [2021-12-06 18:46:16,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:46:16,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:46:16,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:46:16,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:46:16,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:46:16,291 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:46:16,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 725 places, 2333 transitions, 87656 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:46:16,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:46:16,292 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:46:16,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:46:32,761 INFO L129 PetriNetUnfolder]: 6659/17080 cut-off events. [2021-12-06 18:46:32,761 INFO L130 PetriNetUnfolder]: For 1112054/1112348 co-relation queries the response was YES. [2021-12-06 18:46:33,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183549 conditions, 17080 events. 6659/17080 cut-off events. For 1112054/1112348 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 176398 event pairs, 944 based on Foata normal form. 66/16859 useless extension candidates. Maximal degree in co-relation 183225. Up to 8202 conditions per place. [2021-12-06 18:46:33,290 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 2129 selfloop transitions, 380 changer transitions 2/2623 dead transitions. [2021-12-06 18:46:33,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 738 places, 2623 transitions, 99010 flow [2021-12-06 18:46:33,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:46:33,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:46:33,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1114 transitions. [2021-12-06 18:46:33,292 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7506738544474394 [2021-12-06 18:46:33,292 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1114 transitions. [2021-12-06 18:46:33,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1114 transitions. [2021-12-06 18:46:33,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:46:33,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1114 transitions. [2021-12-06 18:46:33,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.57142857142857) internal successors, (1114), 14 states have internal predecessors, (1114), 0 states have call successors, (0), 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 18:46:33,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:46:33,294 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:46:33,294 INFO L186 Difference]: Start difference. First operand has 725 places, 2333 transitions, 87656 flow. Second operand 14 states and 1114 transitions. [2021-12-06 18:46:33,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 738 places, 2623 transitions, 99010 flow [2021-12-06 18:46:48,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 731 places, 2623 transitions, 98257 flow, removed 133 selfloop flow, removed 7 redundant places. [2021-12-06 18:46:48,565 INFO L242 Difference]: Finished difference. Result has 737 places, 2378 transitions, 89948 flow [2021-12-06 18:46:48,567 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=86903, PETRI_DIFFERENCE_MINUEND_PLACES=718, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=335, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=89948, PETRI_PLACES=737, PETRI_TRANSITIONS=2378} [2021-12-06 18:46:48,567 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 636 predicate places. [2021-12-06 18:46:48,567 INFO L470 AbstractCegarLoop]: Abstraction has has 737 places, 2378 transitions, 89948 flow [2021-12-06 18:46:48,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:46:48,567 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:46:48,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:46:48,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-12-06 18:46:48,568 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:46:48,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:46:48,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1907139132, now seen corresponding path program 14 times [2021-12-06 18:46:48,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:46:48,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153140087] [2021-12-06 18:46:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:46:48,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:46:48,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:46:48,665 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 18:46:48,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:46:48,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153140087] [2021-12-06 18:46:48,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153140087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:46:48,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:46:48,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:46:48,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676576652] [2021-12-06 18:46:48,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:46:48,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:46:48,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:46:48,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:46:48,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:46:48,667 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:46:48,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 737 places, 2378 transitions, 89948 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:46:48,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:46:48,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:46:48,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:47:06,886 INFO L129 PetriNetUnfolder]: 7582/18582 cut-off events. [2021-12-06 18:47:06,886 INFO L130 PetriNetUnfolder]: For 1203185/1203421 co-relation queries the response was YES. [2021-12-06 18:47:07,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199903 conditions, 18582 events. 7582/18582 cut-off events. For 1203185/1203421 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 188223 event pairs, 1910 based on Foata normal form. 93/18328 useless extension candidates. Maximal degree in co-relation 199573. Up to 10042 conditions per place. [2021-12-06 18:47:07,495 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 2035 selfloop transitions, 547 changer transitions 5/2655 dead transitions. [2021-12-06 18:47:07,496 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 750 places, 2655 transitions, 102278 flow [2021-12-06 18:47:07,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:47:07,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:47:07,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1068 transitions. [2021-12-06 18:47:07,497 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7196765498652291 [2021-12-06 18:47:07,497 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1068 transitions. [2021-12-06 18:47:07,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1068 transitions. [2021-12-06 18:47:07,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:47:07,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1068 transitions. [2021-12-06 18:47:07,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 76.28571428571429) internal successors, (1068), 14 states have internal predecessors, (1068), 0 states have call successors, (0), 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 18:47:07,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:47:07,499 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:47:07,499 INFO L186 Difference]: Start difference. First operand has 737 places, 2378 transitions, 89948 flow. Second operand 14 states and 1068 transitions. [2021-12-06 18:47:07,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 750 places, 2655 transitions, 102278 flow [2021-12-06 18:47:23,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 745 places, 2655 transitions, 101849 flow, removed 95 selfloop flow, removed 5 redundant places. [2021-12-06 18:47:23,089 INFO L242 Difference]: Finished difference. Result has 751 places, 2436 transitions, 93548 flow [2021-12-06 18:47:23,091 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=89519, PETRI_DIFFERENCE_MINUEND_PLACES=732, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=492, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=93548, PETRI_PLACES=751, PETRI_TRANSITIONS=2436} [2021-12-06 18:47:23,091 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 650 predicate places. [2021-12-06 18:47:23,091 INFO L470 AbstractCegarLoop]: Abstraction has has 751 places, 2436 transitions, 93548 flow [2021-12-06 18:47:23,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:47:23,091 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:47:23,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:47:23,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-12-06 18:47:23,092 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:47:23,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:47:23,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1016689927, now seen corresponding path program 11 times [2021-12-06 18:47:23,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:47:23,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82378966] [2021-12-06 18:47:23,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:47:23,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:47:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:23,210 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 18:47:23,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:47:23,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82378966] [2021-12-06 18:47:23,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82378966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:47:23,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:47:23,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:47:23,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69244754] [2021-12-06 18:47:23,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:47:23,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:47:23,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:47:23,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:47:23,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:47:23,212 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:47:23,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 751 places, 2436 transitions, 93548 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:47:23,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:47:23,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:47:23,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:47:40,366 INFO L129 PetriNetUnfolder]: 6815/17476 cut-off events. [2021-12-06 18:47:40,366 INFO L130 PetriNetUnfolder]: For 1202418/1202740 co-relation queries the response was YES. [2021-12-06 18:47:40,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192374 conditions, 17476 events. 6815/17476 cut-off events. For 1202418/1202740 co-relation queries the response was YES. Maximal size of possible extension queue 755. Compared 181198 event pairs, 941 based on Foata normal form. 75/17261 useless extension candidates. Maximal degree in co-relation 192038. Up to 8202 conditions per place. [2021-12-06 18:47:40,931 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 2178 selfloop transitions, 401 changer transitions 2/2695 dead transitions. [2021-12-06 18:47:40,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 764 places, 2695 transitions, 104327 flow [2021-12-06 18:47:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:47:40,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:47:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1112 transitions. [2021-12-06 18:47:40,932 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7493261455525606 [2021-12-06 18:47:40,932 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1112 transitions. [2021-12-06 18:47:40,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1112 transitions. [2021-12-06 18:47:40,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:47:40,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1112 transitions. [2021-12-06 18:47:40,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 79.42857142857143) internal successors, (1112), 14 states have internal predecessors, (1112), 0 states have call successors, (0), 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 18:47:40,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:47:40,934 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:47:40,935 INFO L186 Difference]: Start difference. First operand has 751 places, 2436 transitions, 93548 flow. Second operand 14 states and 1112 transitions. [2021-12-06 18:47:40,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 764 places, 2695 transitions, 104327 flow [2021-12-06 18:47:57,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 757 places, 2695 transitions, 103020 flow, removed 308 selfloop flow, removed 7 redundant places. [2021-12-06 18:47:57,227 INFO L242 Difference]: Finished difference. Result has 762 places, 2473 transitions, 95206 flow [2021-12-06 18:47:57,229 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=92241, PETRI_DIFFERENCE_MINUEND_PLACES=744, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=95206, PETRI_PLACES=762, PETRI_TRANSITIONS=2473} [2021-12-06 18:47:57,229 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 661 predicate places. [2021-12-06 18:47:57,229 INFO L470 AbstractCegarLoop]: Abstraction has has 762 places, 2473 transitions, 95206 flow [2021-12-06 18:47:57,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:47:57,229 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:47:57,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:47:57,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-12-06 18:47:57,230 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:47:57,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:47:57,230 INFO L85 PathProgramCache]: Analyzing trace with hash 687662602, now seen corresponding path program 15 times [2021-12-06 18:47:57,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:47:57,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672488024] [2021-12-06 18:47:57,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:47:57,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:47:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:47:57,332 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 18:47:57,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:47:57,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672488024] [2021-12-06 18:47:57,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672488024] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:47:57,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:47:57,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:47:57,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252051013] [2021-12-06 18:47:57,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:47:57,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:47:57,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:47:57,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:47:57,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:47:57,334 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:47:57,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 762 places, 2473 transitions, 95206 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:47:57,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:47:57,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:47:57,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:48:16,846 INFO L129 PetriNetUnfolder]: 7694/18861 cut-off events. [2021-12-06 18:48:16,846 INFO L130 PetriNetUnfolder]: For 1273701/1273935 co-relation queries the response was YES. [2021-12-06 18:48:17,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 206074 conditions, 18861 events. 7694/18861 cut-off events. For 1273701/1273935 co-relation queries the response was YES. Maximal size of possible extension queue 767. Compared 191652 event pairs, 1948 based on Foata normal form. 93/18601 useless extension candidates. Maximal degree in co-relation 205733. Up to 10042 conditions per place. [2021-12-06 18:48:17,482 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 2050 selfloop transitions, 578 changer transitions 6/2702 dead transitions. [2021-12-06 18:48:17,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 775 places, 2702 transitions, 106018 flow [2021-12-06 18:48:17,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 18:48:17,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-12-06 18:48:17,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1072 transitions. [2021-12-06 18:48:17,483 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7223719676549866 [2021-12-06 18:48:17,483 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1072 transitions. [2021-12-06 18:48:17,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1072 transitions. [2021-12-06 18:48:17,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:48:17,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1072 transitions. [2021-12-06 18:48:17,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 76.57142857142857) internal successors, (1072), 14 states have internal predecessors, (1072), 0 states have call successors, (0), 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 18:48:17,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:48:17,485 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 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 18:48:17,486 INFO L186 Difference]: Start difference. First operand has 762 places, 2473 transitions, 95206 flow. Second operand 14 states and 1072 transitions. [2021-12-06 18:48:17,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 775 places, 2702 transitions, 106018 flow [2021-12-06 18:48:35,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 768 places, 2702 transitions, 105306 flow, removed 117 selfloop flow, removed 7 redundant places. [2021-12-06 18:48:35,514 INFO L242 Difference]: Finished difference. Result has 773 places, 2524 transitions, 98274 flow [2021-12-06 18:48:35,515 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=94548, PETRI_DIFFERENCE_MINUEND_PLACES=755, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=528, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1899, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=98274, PETRI_PLACES=773, PETRI_TRANSITIONS=2524} [2021-12-06 18:48:35,515 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 672 predicate places. [2021-12-06 18:48:35,515 INFO L470 AbstractCegarLoop]: Abstraction has has 773 places, 2524 transitions, 98274 flow [2021-12-06 18:48:35,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:48:35,515 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:48:35,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:48:35,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-12-06 18:48:35,516 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:48:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:48:35,516 INFO L85 PathProgramCache]: Analyzing trace with hash 48578031, now seen corresponding path program 12 times [2021-12-06 18:48:35,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:48:35,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140873835] [2021-12-06 18:48:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:48:35,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:48:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:48:35,650 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 18:48:35,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:48:35,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140873835] [2021-12-06 18:48:35,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140873835] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:48:35,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:48:35,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:48:35,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071293908] [2021-12-06 18:48:35,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:48:35,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:48:35,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:48:35,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:48:35,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:48:35,651 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:48:35,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 773 places, 2524 transitions, 98274 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:48:35,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:48:35,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:48:35,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:48:54,065 INFO L129 PetriNetUnfolder]: 6954/17781 cut-off events. [2021-12-06 18:48:54,066 INFO L130 PetriNetUnfolder]: For 1262750/1263075 co-relation queries the response was YES. [2021-12-06 18:48:54,572 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198881 conditions, 17781 events. 6954/17781 cut-off events. For 1262750/1263075 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 185298 event pairs, 691 based on Foata normal form. 86/17580 useless extension candidates. Maximal degree in co-relation 198535. Up to 9992 conditions per place. [2021-12-06 18:48:54,760 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 2182 selfloop transitions, 607 changer transitions 2/2907 dead transitions. [2021-12-06 18:48:54,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 784 places, 2907 transitions, 113615 flow [2021-12-06 18:48:54,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 18:48:54,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-12-06 18:48:54,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 928 transitions. [2021-12-06 18:48:54,761 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7295597484276729 [2021-12-06 18:48:54,761 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 928 transitions. [2021-12-06 18:48:54,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 928 transitions. [2021-12-06 18:48:54,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:48:54,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 928 transitions. [2021-12-06 18:48:54,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 77.33333333333333) internal successors, (928), 12 states have internal predecessors, (928), 0 states have call successors, (0), 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 18:48:54,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 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 18:48:54,763 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 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 18:48:54,763 INFO L186 Difference]: Start difference. First operand has 773 places, 2524 transitions, 98274 flow. Second operand 12 states and 928 transitions. [2021-12-06 18:48:54,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 784 places, 2907 transitions, 113615 flow [2021-12-06 18:49:11,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 776 places, 2907 transitions, 112364 flow, removed 243 selfloop flow, removed 8 redundant places. [2021-12-06 18:49:11,527 INFO L242 Difference]: Finished difference. Result has 780 places, 2564 transitions, 101888 flow [2021-12-06 18:49:11,528 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=97086, PETRI_DIFFERENCE_MINUEND_PLACES=765, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=567, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1935, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=101888, PETRI_PLACES=780, PETRI_TRANSITIONS=2564} [2021-12-06 18:49:11,528 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 679 predicate places. [2021-12-06 18:49:11,528 INFO L470 AbstractCegarLoop]: Abstraction has has 780 places, 2564 transitions, 101888 flow [2021-12-06 18:49:11,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:49:11,528 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:49:11,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:11,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-12-06 18:49:11,528 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:49:11,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:11,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1499587948, now seen corresponding path program 16 times [2021-12-06 18:49:11,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:49:11,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970914062] [2021-12-06 18:49:11,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:11,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:49:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:11,629 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 18:49:11,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:49:11,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970914062] [2021-12-06 18:49:11,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970914062] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:11,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:11,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:49:11,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345289613] [2021-12-06 18:49:11,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:11,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:49:11,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:49:11,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:49:11,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:49:11,631 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 106 [2021-12-06 18:49:11,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 780 places, 2564 transitions, 101888 flow. Second operand has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:49:11,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:49:11,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 106 [2021-12-06 18:49:11,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:49:32,167 INFO L129 PetriNetUnfolder]: 7898/19406 cut-off events. [2021-12-06 18:49:32,168 INFO L130 PetriNetUnfolder]: For 1392059/1392302 co-relation queries the response was YES. [2021-12-06 18:49:32,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215579 conditions, 19406 events. 7898/19406 cut-off events. For 1392059/1392302 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 198614 event pairs, 1995 based on Foata normal form. 90/19128 useless extension candidates. Maximal degree in co-relation 215229. Up to 12825 conditions per place. [2021-12-06 18:49:32,948 INFO L132 encePairwiseOnDemand]: 81/106 looper letters, 1509 selfloop transitions, 1137 changer transitions 4/2718 dead transitions. [2021-12-06 18:49:32,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 2718 transitions, 111140 flow [2021-12-06 18:49:32,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 18:49:32,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 18:49:32,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 934 transitions. [2021-12-06 18:49:32,950 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6777939042089985 [2021-12-06 18:49:32,950 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 934 transitions. [2021-12-06 18:49:32,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 934 transitions. [2021-12-06 18:49:32,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:49:32,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 934 transitions. [2021-12-06 18:49:32,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 71.84615384615384) internal successors, (934), 13 states have internal predecessors, (934), 0 states have call successors, (0), 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 18:49:32,952 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 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 18:49:32,952 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 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 18:49:32,952 INFO L186 Difference]: Start difference. First operand has 780 places, 2564 transitions, 101888 flow. Second operand 13 states and 934 transitions. [2021-12-06 18:49:32,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 2718 transitions, 111140 flow [2021-12-06 18:49:51,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 788 places, 2718 transitions, 111054 flow, removed 18 selfloop flow, removed 4 redundant places. [2021-12-06 18:49:51,387 INFO L242 Difference]: Finished difference. Result has 795 places, 2587 transitions, 106669 flow [2021-12-06 18:49:51,388 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=101802, PETRI_DIFFERENCE_MINUEND_PLACES=776, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=106669, PETRI_PLACES=795, PETRI_TRANSITIONS=2587} [2021-12-06 18:49:51,388 INFO L334 CegarLoopForPetriNet]: 101 programPoint places, 694 predicate places. [2021-12-06 18:49:51,388 INFO L470 AbstractCegarLoop]: Abstraction has has 795 places, 2587 transitions, 106669 flow [2021-12-06 18:49:51,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 60.0) internal successors, (780), 13 states have internal predecessors, (780), 0 states have call successors, (0), 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 18:49:51,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:49:51,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 18:49:51,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-12-06 18:49:51,388 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:49:51,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:49:51,389 INFO L85 PathProgramCache]: Analyzing trace with hash 798160349, now seen corresponding path program 13 times [2021-12-06 18:49:51,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:49:51,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203052938] [2021-12-06 18:49:51,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:49:51,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:49:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:49:51,519 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 18:49:51,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:49:51,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203052938] [2021-12-06 18:49:51,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203052938] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:49:51,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:49:51,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 18:49:51,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238680992] [2021-12-06 18:49:51,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:49:51,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 18:49:51,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:49:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 18:49:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-06 18:49:51,521 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 106 [2021-12-06 18:49:51,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 795 places, 2587 transitions, 106669 flow. Second operand has 13 states, 13 states have (on average 61.92307692307692) internal successors, (805), 13 states have internal predecessors, (805), 0 states have call successors, (0), 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 18:49:51,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:49:51,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 106 [2021-12-06 18:49:51,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:50:11,166 INFO L129 PetriNetUnfolder]: 7082/18143 cut-off events. [2021-12-06 18:50:11,166 INFO L130 PetriNetUnfolder]: For 1439414/1439754 co-relation queries the response was YES. [2021-12-06 18:50:11,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210429 conditions, 18143 events. 7082/18143 cut-off events. For 1439414/1439754 co-relation queries the response was YES. Maximal size of possible extension queue 780. Compared 189655 event pairs, 757 based on Foata normal form. 90/17927 useless extension candidates. Maximal degree in co-relation 210072. Up to 10094 conditions per place. [2021-12-06 18:50:11,801 INFO L132 encePairwiseOnDemand]: 89/106 looper letters, 2130 selfloop transitions, 599 changer transitions 2/2853 dead transitions. [2021-12-06 18:50:11,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 807 places, 2853 transitions, 118767 flow [2021-12-06 18:50:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 18:50:11,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-12-06 18:50:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 988 transitions. [2021-12-06 18:50:11,803 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7169811320754716 [2021-12-06 18:50:11,803 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 988 transitions. [2021-12-06 18:50:11,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 988 transitions. [2021-12-06 18:50:11,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:50:11,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 988 transitions. [2021-12-06 18:50:11,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.0) internal successors, (988), 13 states have internal predecessors, (988), 0 states have call successors, (0), 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 18:50:11,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 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 18:50:11,805 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 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 18:50:11,805 INFO L186 Difference]: Start difference. First operand has 795 places, 2587 transitions, 106669 flow. Second operand 13 states and 988 transitions. [2021-12-06 18:50:11,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 807 places, 2853 transitions, 118767 flow