./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:02:40,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:02:40,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:02:40,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:02:40,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:02:40,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:02:40,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:02:40,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:02:40,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:02:40,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:02:40,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:02:40,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:02:40,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:02:40,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:02:40,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:02:40,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:02:40,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:02:40,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:02:40,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:02:40,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:02:40,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:02:40,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:02:40,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:02:40,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:02:40,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:02:40,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:02:40,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:02:40,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:02:40,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:02:40,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:02:40,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:02:40,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:02:40,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:02:40,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:02:40,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:02:40,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:02:40,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:02:40,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:02:40,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:02:40,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:02:40,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:02:40,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:02:40,557 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:02:40,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:02:40,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:02:40,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:02:40,559 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:02:40,559 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:02:40,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:02:40,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:02:40,560 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:02:40,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:02:40,561 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:02:40,561 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:02:40,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:02:40,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:02:40,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:02:40,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:02:40,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:02:40,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:02:40,563 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:02:40,563 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:02:40,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:02:40,563 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:02:40,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:02:40,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:02:40,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:02:40,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:02:40,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:02:40,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:02:40,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:02:40,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:02:40,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:02:40,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:02:40,565 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:02:40,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:02:40,565 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:02:40,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:02:40,566 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:02:40,566 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:02:40,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:02:40,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:02:40,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:02:40,890 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:02:40,891 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:02:40,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-08-31 19:02:42,084 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:02:42,398 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:02:42,398 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-08-31 19:02:42,416 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1f9ec54/64ae927961514e0fb4f3a8416c29c0db/FLAG503238eab [2023-08-31 19:02:42,433 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1f9ec54/64ae927961514e0fb4f3a8416c29c0db [2023-08-31 19:02:42,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:02:42,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:02:42,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:02:42,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:02:42,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:02:42,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:02:42" (1/1) ... [2023-08-31 19:02:42,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c42a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:42, skipping insertion in model container [2023-08-31 19:02:42,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:02:42" (1/1) ... [2023-08-31 19:02:42,450 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:02:42,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:02:42,629 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-31 19:02:43,014 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2023-08-31 19:02:43,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:02:43,063 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:02:43,073 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-31 19:02:43,096 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2023-08-31 19:02:43,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:02:43,244 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:02:43,245 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:02:43,245 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:02:43,251 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:02:43,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43 WrapperNode [2023-08-31 19:02:43,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:02:43,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:02:43,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:02:43,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:02:43,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,346 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 174 [2023-08-31 19:02:43,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:02:43,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:02:43,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:02:43,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:02:43,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:02:43,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:02:43,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:02:43,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:02:43,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (1/1) ... [2023-08-31 19:02:43,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:02:43,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:02:43,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:02:43,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:02:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-31 19:02:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:02:43,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-31 19:02:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:02:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:02:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 19:02:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:02:43,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:02:43,516 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-31 19:02:43,516 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-31 19:02:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:02:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:02:43,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:02:43,518 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:02:43,837 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:02:43,839 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:02:44,203 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:02:44,270 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:02:44,271 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:02:44,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:02:44 BoogieIcfgContainer [2023-08-31 19:02:44,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:02:44,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:02:44,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:02:44,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:02:44,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:02:42" (1/3) ... [2023-08-31 19:02:44,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468621d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:02:44, skipping insertion in model container [2023-08-31 19:02:44,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:02:43" (2/3) ... [2023-08-31 19:02:44,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468621d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:02:44, skipping insertion in model container [2023-08-31 19:02:44,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:02:44" (3/3) ... [2023-08-31 19:02:44,282 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-08-31 19:02:44,289 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:02:44,313 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:02:44,314 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-08-31 19:02:44,314 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:02:44,381 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 19:02:44,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 217 transitions, 450 flow [2023-08-31 19:02:44,553 INFO L130 PetriNetUnfolder]: 8/287 cut-off events. [2023-08-31 19:02:44,556 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 19:02:44,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 287 events. 8/287 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 538 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 152. Up to 4 conditions per place. [2023-08-31 19:02:44,561 INFO L82 GeneralOperation]: Start removeDead. Operand has 217 places, 217 transitions, 450 flow [2023-08-31 19:02:44,570 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 214 transitions, 440 flow [2023-08-31 19:02:44,574 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:02:44,587 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 214 transitions, 440 flow [2023-08-31 19:02:44,591 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 214 transitions, 440 flow [2023-08-31 19:02:44,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 214 transitions, 440 flow [2023-08-31 19:02:44,654 INFO L130 PetriNetUnfolder]: 7/286 cut-off events. [2023-08-31 19:02:44,654 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 19:02:44,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 286 events. 7/286 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 547 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 151. Up to 4 conditions per place. [2023-08-31 19:02:44,660 INFO L119 LiptonReduction]: Number of co-enabled transitions 4680 [2023-08-31 19:03:09,786 WARN L222 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 181 DAG size of output: 178 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-31 19:03:28,530 INFO L134 LiptonReduction]: Checked pairs total: 27136 [2023-08-31 19:03:28,530 INFO L136 LiptonReduction]: Total number of compositions: 201 [2023-08-31 19:03:28,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:03:28,546 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d2993cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:03:28,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-31 19:03:28,548 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 19:03:28,548 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:03:28,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:28,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:03:28,549 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:28,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:28,553 INFO L85 PathProgramCache]: Analyzing trace with hash 738, now seen corresponding path program 1 times [2023-08-31 19:03:28,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:28,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784850440] [2023-08-31 19:03:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:28,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:28,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:28,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:28,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784850440] [2023-08-31 19:03:28,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784850440] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:28,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:28,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:03:28,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772842572] [2023-08-31 19:03:28,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:28,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:03:28,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:28,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:03:28,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:03:28,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 418 [2023-08-31 19:03:28,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 154 flow. Second operand has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:28,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:28,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 418 [2023-08-31 19:03:28,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:29,073 INFO L130 PetriNetUnfolder]: 265/860 cut-off events. [2023-08-31 19:03:29,074 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-08-31 19:03:29,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1352 conditions, 860 events. 265/860 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4986 event pairs, 264 based on Foata normal form. 34/810 useless extension candidates. Maximal degree in co-relation 1220. Up to 474 conditions per place. [2023-08-31 19:03:29,082 INFO L137 encePairwiseOnDemand]: 406/418 looper letters, 24 selfloop transitions, 0 changer transitions 2/59 dead transitions. [2023-08-31 19:03:29,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 182 flow [2023-08-31 19:03:29,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:03:29,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:03:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 424 transitions. [2023-08-31 19:03:29,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.507177033492823 [2023-08-31 19:03:29,102 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 424 transitions. [2023-08-31 19:03:29,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 424 transitions. [2023-08-31 19:03:29,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:29,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 424 transitions. [2023-08-31 19:03:29,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 212.0) internal successors, (424), 2 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) [2023-08-31 19:03:29,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:29,117 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:29,119 INFO L175 Difference]: Start difference. First operand has 74 places, 71 transitions, 154 flow. Second operand 2 states and 424 transitions. [2023-08-31 19:03:29,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 182 flow [2023-08-31 19:03:29,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 59 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 19:03:29,125 INFO L231 Difference]: Finished difference. Result has 61 places, 57 transitions, 118 flow [2023-08-31 19:03:29,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=118, PETRI_PLACES=61, PETRI_TRANSITIONS=57} [2023-08-31 19:03:29,130 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -13 predicate places. [2023-08-31 19:03:29,133 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 57 transitions, 118 flow [2023-08-31 19:03:29,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 193.5) internal successors, (387), 2 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:29,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:29,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:29,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:03:29,135 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:29,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:29,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2004010624, now seen corresponding path program 1 times [2023-08-31 19:03:29,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:29,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915008823] [2023-08-31 19:03:29,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:29,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:29,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:29,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:29,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915008823] [2023-08-31 19:03:29,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915008823] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:29,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:29,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:03:29,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750341613] [2023-08-31 19:03:29,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:29,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:03:29,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:29,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:03:29,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:03:30,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 418 [2023-08-31 19:03:30,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 118 flow. Second operand has 6 states, 6 states have (on average 157.16666666666666) internal successors, (943), 6 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:30,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:30,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 418 [2023-08-31 19:03:30,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:30,567 INFO L130 PetriNetUnfolder]: 673/1395 cut-off events. [2023-08-31 19:03:30,567 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2023-08-31 19:03:30,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2577 conditions, 1395 events. 673/1395 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6978 event pairs, 474 based on Foata normal form. 0/1327 useless extension candidates. Maximal degree in co-relation 2574. Up to 1074 conditions per place. [2023-08-31 19:03:30,572 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 40 selfloop transitions, 31 changer transitions 0/86 dead transitions. [2023-08-31 19:03:30,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 86 transitions, 318 flow [2023-08-31 19:03:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:03:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:03:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1008 transitions. [2023-08-31 19:03:30,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4019138755980861 [2023-08-31 19:03:30,577 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1008 transitions. [2023-08-31 19:03:30,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1008 transitions. [2023-08-31 19:03:30,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:30,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1008 transitions. [2023-08-31 19:03:30,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:30,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:30,587 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:30,587 INFO L175 Difference]: Start difference. First operand has 61 places, 57 transitions, 118 flow. Second operand 6 states and 1008 transitions. [2023-08-31 19:03:30,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 86 transitions, 318 flow [2023-08-31 19:03:30,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 86 transitions, 318 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:03:30,589 INFO L231 Difference]: Finished difference. Result has 69 places, 86 transitions, 324 flow [2023-08-31 19:03:30,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=69, PETRI_TRANSITIONS=86} [2023-08-31 19:03:30,590 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -5 predicate places. [2023-08-31 19:03:30,590 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 86 transitions, 324 flow [2023-08-31 19:03:30,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.16666666666666) internal successors, (943), 6 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:30,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:30,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:30,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:03:30,592 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:30,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:30,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1547817059, now seen corresponding path program 1 times [2023-08-31 19:03:30,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:30,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355877645] [2023-08-31 19:03:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:30,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:30,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:30,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:30,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355877645] [2023-08-31 19:03:30,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355877645] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:30,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:30,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:03:30,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084596315] [2023-08-31 19:03:30,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:30,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:03:30,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:30,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:03:30,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:03:30,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 418 [2023-08-31 19:03:30,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 86 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:30,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:30,715 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 418 [2023-08-31 19:03:30,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:30,995 INFO L130 PetriNetUnfolder]: 447/1122 cut-off events. [2023-08-31 19:03:30,995 INFO L131 PetriNetUnfolder]: For 493/493 co-relation queries the response was YES. [2023-08-31 19:03:30,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2645 conditions, 1122 events. 447/1122 cut-off events. For 493/493 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6130 event pairs, 261 based on Foata normal form. 0/1074 useless extension candidates. Maximal degree in co-relation 2637. Up to 635 conditions per place. [2023-08-31 19:03:31,002 INFO L137 encePairwiseOnDemand]: 415/418 looper letters, 48 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2023-08-31 19:03:31,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 87 transitions, 426 flow [2023-08-31 19:03:31,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:03:31,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:03:31,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2023-08-31 19:03:31,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47527910685805425 [2023-08-31 19:03:31,007 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2023-08-31 19:03:31,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2023-08-31 19:03:31,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:31,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2023-08-31 19:03:31,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:31,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 418.0) internal successors, (1672), 4 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:31,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 418.0) internal successors, (1672), 4 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:31,015 INFO L175 Difference]: Start difference. First operand has 69 places, 86 transitions, 324 flow. Second operand 3 states and 596 transitions. [2023-08-31 19:03:31,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 87 transitions, 426 flow [2023-08-31 19:03:31,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 87 transitions, 426 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:03:31,025 INFO L231 Difference]: Finished difference. Result has 72 places, 87 transitions, 336 flow [2023-08-31 19:03:31,025 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=72, PETRI_TRANSITIONS=87} [2023-08-31 19:03:31,026 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2023-08-31 19:03:31,027 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 87 transitions, 336 flow [2023-08-31 19:03:31,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:31,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:31,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:31,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:03:31,028 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:31,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:31,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1538200307, now seen corresponding path program 1 times [2023-08-31 19:03:31,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:31,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827942488] [2023-08-31 19:03:31,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:31,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:31,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:31,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:31,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827942488] [2023-08-31 19:03:31,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827942488] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:31,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:31,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:03:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735907161] [2023-08-31 19:03:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:31,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:03:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:03:31,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:03:31,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 418 [2023-08-31 19:03:31,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 87 transitions, 336 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:31,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:31,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 418 [2023-08-31 19:03:31,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:32,381 INFO L130 PetriNetUnfolder]: 766/1594 cut-off events. [2023-08-31 19:03:32,381 INFO L131 PetriNetUnfolder]: For 585/586 co-relation queries the response was YES. [2023-08-31 19:03:32,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4155 conditions, 1594 events. 766/1594 cut-off events. For 585/586 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 8342 event pairs, 394 based on Foata normal form. 1/1540 useless extension candidates. Maximal degree in co-relation 4145. Up to 1151 conditions per place. [2023-08-31 19:03:32,391 INFO L137 encePairwiseOnDemand]: 407/418 looper letters, 77 selfloop transitions, 22 changer transitions 0/120 dead transitions. [2023-08-31 19:03:32,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 120 transitions, 654 flow [2023-08-31 19:03:32,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:03:32,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:03:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1091 transitions. [2023-08-31 19:03:32,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4350079744816587 [2023-08-31 19:03:32,397 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1091 transitions. [2023-08-31 19:03:32,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1091 transitions. [2023-08-31 19:03:32,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:32,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1091 transitions. [2023-08-31 19:03:32,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:32,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:32,406 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:32,406 INFO L175 Difference]: Start difference. First operand has 72 places, 87 transitions, 336 flow. Second operand 6 states and 1091 transitions. [2023-08-31 19:03:32,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 120 transitions, 654 flow [2023-08-31 19:03:32,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 120 transitions, 652 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:03:32,413 INFO L231 Difference]: Finished difference. Result has 81 places, 108 transitions, 520 flow [2023-08-31 19:03:32,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=520, PETRI_PLACES=81, PETRI_TRANSITIONS=108} [2023-08-31 19:03:32,415 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2023-08-31 19:03:32,415 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 108 transitions, 520 flow [2023-08-31 19:03:32,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:32,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:32,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:32,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:03:32,417 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:32,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:32,417 INFO L85 PathProgramCache]: Analyzing trace with hash -817520329, now seen corresponding path program 1 times [2023-08-31 19:03:32,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:32,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304769324] [2023-08-31 19:03:32,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:32,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:32,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:32,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:32,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304769324] [2023-08-31 19:03:32,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304769324] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:32,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:32,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:03:32,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019314365] [2023-08-31 19:03:32,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:32,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:03:32,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:32,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:03:32,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:03:32,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 418 [2023-08-31 19:03:32,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 108 transitions, 520 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:32,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:32,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 418 [2023-08-31 19:03:32,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:32,777 INFO L130 PetriNetUnfolder]: 222/523 cut-off events. [2023-08-31 19:03:32,777 INFO L131 PetriNetUnfolder]: For 658/743 co-relation queries the response was YES. [2023-08-31 19:03:32,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1649 conditions, 523 events. 222/523 cut-off events. For 658/743 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2421 event pairs, 88 based on Foata normal form. 0/502 useless extension candidates. Maximal degree in co-relation 1635. Up to 303 conditions per place. [2023-08-31 19:03:32,781 INFO L137 encePairwiseOnDemand]: 415/418 looper letters, 45 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2023-08-31 19:03:32,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 83 transitions, 472 flow [2023-08-31 19:03:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:03:32,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:03:32,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 601 transitions. [2023-08-31 19:03:32,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47926634768740034 [2023-08-31 19:03:32,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 601 transitions. [2023-08-31 19:03:32,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 601 transitions. [2023-08-31 19:03:32,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:32,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 601 transitions. [2023-08-31 19:03:32,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:32,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 418.0) internal successors, (1672), 4 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:32,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 418.0) internal successors, (1672), 4 states have internal predecessors, (1672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:32,790 INFO L175 Difference]: Start difference. First operand has 81 places, 108 transitions, 520 flow. Second operand 3 states and 601 transitions. [2023-08-31 19:03:32,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 83 transitions, 472 flow [2023-08-31 19:03:32,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 83 transitions, 446 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-31 19:03:32,794 INFO L231 Difference]: Finished difference. Result has 73 places, 77 transitions, 324 flow [2023-08-31 19:03:32,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=73, PETRI_TRANSITIONS=77} [2023-08-31 19:03:32,795 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -1 predicate places. [2023-08-31 19:03:32,795 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 77 transitions, 324 flow [2023-08-31 19:03:32,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:32,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:32,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:32,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:03:32,796 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:32,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:32,796 INFO L85 PathProgramCache]: Analyzing trace with hash 447756112, now seen corresponding path program 1 times [2023-08-31 19:03:32,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:32,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316345592] [2023-08-31 19:03:32,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:32,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:33,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:33,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316345592] [2023-08-31 19:03:33,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316345592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:33,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:33,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:03:33,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189988192] [2023-08-31 19:03:33,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:33,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:03:33,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:33,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:03:33,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:03:33,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 418 [2023-08-31 19:03:33,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 77 transitions, 324 flow. Second operand has 10 states, 10 states have (on average 166.2) internal successors, (1662), 10 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:33,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:33,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 418 [2023-08-31 19:03:33,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:34,966 INFO L130 PetriNetUnfolder]: 359/731 cut-off events. [2023-08-31 19:03:34,966 INFO L131 PetriNetUnfolder]: For 647/648 co-relation queries the response was YES. [2023-08-31 19:03:34,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2457 conditions, 731 events. 359/731 cut-off events. For 647/648 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3029 event pairs, 132 based on Foata normal form. 9/731 useless extension candidates. Maximal degree in co-relation 2446. Up to 417 conditions per place. [2023-08-31 19:03:34,971 INFO L137 encePairwiseOnDemand]: 405/418 looper letters, 58 selfloop transitions, 36 changer transitions 0/113 dead transitions. [2023-08-31 19:03:34,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 113 transitions, 661 flow [2023-08-31 19:03:34,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 19:03:34,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 19:03:34,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1399 transitions. [2023-08-31 19:03:34,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41836124401913877 [2023-08-31 19:03:34,975 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1399 transitions. [2023-08-31 19:03:34,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1399 transitions. [2023-08-31 19:03:34,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:34,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1399 transitions. [2023-08-31 19:03:34,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 174.875) internal successors, (1399), 8 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:34,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:34,984 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:34,984 INFO L175 Difference]: Start difference. First operand has 73 places, 77 transitions, 324 flow. Second operand 8 states and 1399 transitions. [2023-08-31 19:03:34,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 113 transitions, 661 flow [2023-08-31 19:03:34,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 113 transitions, 651 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-31 19:03:34,988 INFO L231 Difference]: Finished difference. Result has 82 places, 93 transitions, 559 flow [2023-08-31 19:03:34,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=559, PETRI_PLACES=82, PETRI_TRANSITIONS=93} [2023-08-31 19:03:34,989 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 8 predicate places. [2023-08-31 19:03:34,989 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 93 transitions, 559 flow [2023-08-31 19:03:34,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.2) internal successors, (1662), 10 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:34,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:34,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:34,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:03:34,991 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:34,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:34,991 INFO L85 PathProgramCache]: Analyzing trace with hash 447934858, now seen corresponding path program 1 times [2023-08-31 19:03:34,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:34,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125249047] [2023-08-31 19:03:34,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:34,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:35,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:35,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125249047] [2023-08-31 19:03:35,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125249047] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:35,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:35,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:03:35,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924946993] [2023-08-31 19:03:35,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:35,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:03:35,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:35,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:03:35,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:03:36,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 418 [2023-08-31 19:03:36,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 93 transitions, 559 flow. Second operand has 10 states, 10 states have (on average 166.2) internal successors, (1662), 10 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:36,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:36,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 418 [2023-08-31 19:03:36,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:36,690 INFO L130 PetriNetUnfolder]: 405/823 cut-off events. [2023-08-31 19:03:36,690 INFO L131 PetriNetUnfolder]: For 1597/1598 co-relation queries the response was YES. [2023-08-31 19:03:36,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3314 conditions, 823 events. 405/823 cut-off events. For 1597/1598 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3602 event pairs, 83 based on Foata normal form. 9/820 useless extension candidates. Maximal degree in co-relation 3299. Up to 468 conditions per place. [2023-08-31 19:03:36,696 INFO L137 encePairwiseOnDemand]: 405/418 looper letters, 76 selfloop transitions, 37 changer transitions 0/132 dead transitions. [2023-08-31 19:03:36,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 132 transitions, 978 flow [2023-08-31 19:03:36,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 19:03:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 19:03:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1402 transitions. [2023-08-31 19:03:36,701 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4192583732057416 [2023-08-31 19:03:36,701 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1402 transitions. [2023-08-31 19:03:36,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1402 transitions. [2023-08-31 19:03:36,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:36,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1402 transitions. [2023-08-31 19:03:36,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 175.25) internal successors, (1402), 8 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:36,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:36,709 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:36,709 INFO L175 Difference]: Start difference. First operand has 82 places, 93 transitions, 559 flow. Second operand 8 states and 1402 transitions. [2023-08-31 19:03:36,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 132 transitions, 978 flow [2023-08-31 19:03:36,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 132 transitions, 961 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-08-31 19:03:36,717 INFO L231 Difference]: Finished difference. Result has 92 places, 111 transitions, 835 flow [2023-08-31 19:03:36,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=835, PETRI_PLACES=92, PETRI_TRANSITIONS=111} [2023-08-31 19:03:36,718 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 18 predicate places. [2023-08-31 19:03:36,718 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 111 transitions, 835 flow [2023-08-31 19:03:36,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.2) internal successors, (1662), 10 states have internal predecessors, (1662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:36,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:36,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:36,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:03:36,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:36,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1965198277, now seen corresponding path program 1 times [2023-08-31 19:03:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792028924] [2023-08-31 19:03:36,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:36,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:37,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:37,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792028924] [2023-08-31 19:03:37,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792028924] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:37,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:37,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:03:37,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416394600] [2023-08-31 19:03:37,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:37,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:03:37,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:37,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:03:37,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:03:38,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 418 [2023-08-31 19:03:38,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 111 transitions, 835 flow. Second operand has 11 states, 11 states have (on average 169.1818181818182) internal successors, (1861), 11 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:38,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:38,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 418 [2023-08-31 19:03:38,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:38,810 INFO L130 PetriNetUnfolder]: 397/811 cut-off events. [2023-08-31 19:03:38,810 INFO L131 PetriNetUnfolder]: For 2569/2570 co-relation queries the response was YES. [2023-08-31 19:03:38,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3775 conditions, 811 events. 397/811 cut-off events. For 2569/2570 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3522 event pairs, 55 based on Foata normal form. 5/804 useless extension candidates. Maximal degree in co-relation 3755. Up to 441 conditions per place. [2023-08-31 19:03:38,816 INFO L137 encePairwiseOnDemand]: 405/418 looper letters, 74 selfloop transitions, 51 changer transitions 0/144 dead transitions. [2023-08-31 19:03:38,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 144 transitions, 1260 flow [2023-08-31 19:03:38,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:03:38,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:03:38,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1594 transitions. [2023-08-31 19:03:38,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42371079213184476 [2023-08-31 19:03:38,821 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1594 transitions. [2023-08-31 19:03:38,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1594 transitions. [2023-08-31 19:03:38,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:38,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1594 transitions. [2023-08-31 19:03:38,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 177.11111111111111) internal successors, (1594), 9 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:38,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 418.0) internal successors, (4180), 10 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:38,830 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 418.0) internal successors, (4180), 10 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:38,830 INFO L175 Difference]: Start difference. First operand has 92 places, 111 transitions, 835 flow. Second operand 9 states and 1594 transitions. [2023-08-31 19:03:38,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 144 transitions, 1260 flow [2023-08-31 19:03:38,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 144 transitions, 1254 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-31 19:03:38,840 INFO L231 Difference]: Finished difference. Result has 104 places, 123 transitions, 1152 flow [2023-08-31 19:03:38,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1152, PETRI_PLACES=104, PETRI_TRANSITIONS=123} [2023-08-31 19:03:38,841 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 30 predicate places. [2023-08-31 19:03:38,841 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 123 transitions, 1152 flow [2023-08-31 19:03:38,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 169.1818181818182) internal successors, (1861), 11 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:38,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:38,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:38,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 19:03:38,843 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:38,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:38,843 INFO L85 PathProgramCache]: Analyzing trace with hash -554068678, now seen corresponding path program 1 times [2023-08-31 19:03:38,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:38,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035250065] [2023-08-31 19:03:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:38,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:39,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:39,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035250065] [2023-08-31 19:03:39,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035250065] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:39,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:39,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:03:39,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298730748] [2023-08-31 19:03:39,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:39,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:03:39,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:39,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:03:39,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:03:39,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 418 [2023-08-31 19:03:39,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 123 transitions, 1152 flow. Second operand has 6 states, 6 states have (on average 157.33333333333334) internal successors, (944), 6 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:39,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:39,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 418 [2023-08-31 19:03:39,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:39,643 INFO L130 PetriNetUnfolder]: 415/833 cut-off events. [2023-08-31 19:03:39,644 INFO L131 PetriNetUnfolder]: For 4696/4696 co-relation queries the response was YES. [2023-08-31 19:03:39,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4508 conditions, 833 events. 415/833 cut-off events. For 4696/4696 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3586 event pairs, 182 based on Foata normal form. 0/822 useless extension candidates. Maximal degree in co-relation 4483. Up to 736 conditions per place. [2023-08-31 19:03:39,650 INFO L137 encePairwiseOnDemand]: 412/418 looper letters, 98 selfloop transitions, 5 changer transitions 0/122 dead transitions. [2023-08-31 19:03:39,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 122 transitions, 1356 flow [2023-08-31 19:03:39,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:03:39,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:03:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 977 transitions. [2023-08-31 19:03:39,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38955342902711326 [2023-08-31 19:03:39,654 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 977 transitions. [2023-08-31 19:03:39,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 977 transitions. [2023-08-31 19:03:39,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:39,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 977 transitions. [2023-08-31 19:03:39,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:39,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:39,661 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:39,661 INFO L175 Difference]: Start difference. First operand has 104 places, 123 transitions, 1152 flow. Second operand 6 states and 977 transitions. [2023-08-31 19:03:39,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 122 transitions, 1356 flow [2023-08-31 19:03:39,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 122 transitions, 1333 flow, removed 8 selfloop flow, removed 3 redundant places. [2023-08-31 19:03:39,675 INFO L231 Difference]: Finished difference. Result has 105 places, 122 transitions, 1137 flow [2023-08-31 19:03:39,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=1127, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1137, PETRI_PLACES=105, PETRI_TRANSITIONS=122} [2023-08-31 19:03:39,676 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 31 predicate places. [2023-08-31 19:03:39,676 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 122 transitions, 1137 flow [2023-08-31 19:03:39,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 157.33333333333334) internal successors, (944), 6 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:39,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:39,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:39,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 19:03:39,677 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:39,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:39,677 INFO L85 PathProgramCache]: Analyzing trace with hash 761725707, now seen corresponding path program 1 times [2023-08-31 19:03:39,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:39,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997990441] [2023-08-31 19:03:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:39,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:40,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:40,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997990441] [2023-08-31 19:03:40,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997990441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:40,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:40,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:03:40,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214732116] [2023-08-31 19:03:40,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:40,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:03:40,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:40,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:03:40,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:03:40,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-08-31 19:03:40,748 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 122 transitions, 1137 flow. Second operand has 10 states, 10 states have (on average 164.4) internal successors, (1644), 10 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:40,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:40,748 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-08-31 19:03:40,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:41,547 INFO L130 PetriNetUnfolder]: 415/862 cut-off events. [2023-08-31 19:03:41,547 INFO L131 PetriNetUnfolder]: For 4196/4197 co-relation queries the response was YES. [2023-08-31 19:03:41,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4524 conditions, 862 events. 415/862 cut-off events. For 4196/4197 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3923 event pairs, 89 based on Foata normal form. 5/856 useless extension candidates. Maximal degree in co-relation 4499. Up to 479 conditions per place. [2023-08-31 19:03:41,554 INFO L137 encePairwiseOnDemand]: 405/418 looper letters, 127 selfloop transitions, 50 changer transitions 0/195 dead transitions. [2023-08-31 19:03:41,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 195 transitions, 2151 flow [2023-08-31 19:03:41,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:03:41,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:03:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1722 transitions. [2023-08-31 19:03:41,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41196172248803825 [2023-08-31 19:03:41,558 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1722 transitions. [2023-08-31 19:03:41,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1722 transitions. [2023-08-31 19:03:41,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:41,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1722 transitions. [2023-08-31 19:03:41,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 172.2) internal successors, (1722), 10 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:41,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:41,569 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:41,569 INFO L175 Difference]: Start difference. First operand has 105 places, 122 transitions, 1137 flow. Second operand 10 states and 1722 transitions. [2023-08-31 19:03:41,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 195 transitions, 2151 flow [2023-08-31 19:03:41,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 195 transitions, 2088 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-31 19:03:41,585 INFO L231 Difference]: Finished difference. Result has 113 places, 157 transitions, 1763 flow [2023-08-31 19:03:41,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=1103, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1763, PETRI_PLACES=113, PETRI_TRANSITIONS=157} [2023-08-31 19:03:41,587 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 39 predicate places. [2023-08-31 19:03:41,588 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 157 transitions, 1763 flow [2023-08-31 19:03:41,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 164.4) internal successors, (1644), 10 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:41,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:41,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:41,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 19:03:41,595 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:41,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:41,595 INFO L85 PathProgramCache]: Analyzing trace with hash 901083729, now seen corresponding path program 2 times [2023-08-31 19:03:41,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:41,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134825591] [2023-08-31 19:03:41,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:41,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:42,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:42,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134825591] [2023-08-31 19:03:42,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134825591] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:42,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:42,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:03:42,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421034237] [2023-08-31 19:03:42,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:42,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:03:42,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:42,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:03:42,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:03:42,885 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-08-31 19:03:42,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 157 transitions, 1763 flow. Second operand has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:42,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:42,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-08-31 19:03:42,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:44,160 INFO L130 PetriNetUnfolder]: 527/1128 cut-off events. [2023-08-31 19:03:44,160 INFO L131 PetriNetUnfolder]: For 7119/7120 co-relation queries the response was YES. [2023-08-31 19:03:44,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6265 conditions, 1128 events. 527/1128 cut-off events. For 7119/7120 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5792 event pairs, 84 based on Foata normal form. 5/1114 useless extension candidates. Maximal degree in co-relation 6236. Up to 587 conditions per place. [2023-08-31 19:03:44,168 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 120 selfloop transitions, 89 changer transitions 0/227 dead transitions. [2023-08-31 19:03:44,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 227 transitions, 2828 flow [2023-08-31 19:03:44,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:03:44,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:03:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1729 transitions. [2023-08-31 19:03:44,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41363636363636364 [2023-08-31 19:03:44,173 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1729 transitions. [2023-08-31 19:03:44,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1729 transitions. [2023-08-31 19:03:44,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:44,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1729 transitions. [2023-08-31 19:03:44,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 172.9) internal successors, (1729), 10 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:44,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:44,181 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:44,182 INFO L175 Difference]: Start difference. First operand has 113 places, 157 transitions, 1763 flow. Second operand 10 states and 1729 transitions. [2023-08-31 19:03:44,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 227 transitions, 2828 flow [2023-08-31 19:03:44,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 227 transitions, 2811 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 19:03:44,202 INFO L231 Difference]: Finished difference. Result has 123 places, 194 transitions, 2539 flow [2023-08-31 19:03:44,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=1746, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2539, PETRI_PLACES=123, PETRI_TRANSITIONS=194} [2023-08-31 19:03:44,203 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 49 predicate places. [2023-08-31 19:03:44,203 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 194 transitions, 2539 flow [2023-08-31 19:03:44,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:44,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:44,204 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:44,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 19:03:44,204 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:44,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:44,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1236393406, now seen corresponding path program 1 times [2023-08-31 19:03:44,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:44,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34090487] [2023-08-31 19:03:44,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:44,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:44,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:44,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:44,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34090487] [2023-08-31 19:03:44,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34090487] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:44,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:44,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:03:44,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151834317] [2023-08-31 19:03:44,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:44,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:03:44,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:44,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:03:44,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:03:45,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-08-31 19:03:45,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 194 transitions, 2539 flow. Second operand has 10 states, 10 states have (on average 164.4) internal successors, (1644), 10 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:45,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:45,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-08-31 19:03:45,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:46,060 INFO L130 PetriNetUnfolder]: 539/1175 cut-off events. [2023-08-31 19:03:46,060 INFO L131 PetriNetUnfolder]: For 8636/8636 co-relation queries the response was YES. [2023-08-31 19:03:46,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7101 conditions, 1175 events. 539/1175 cut-off events. For 8636/8636 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6177 event pairs, 85 based on Foata normal form. 4/1158 useless extension candidates. Maximal degree in co-relation 7068. Up to 621 conditions per place. [2023-08-31 19:03:46,068 INFO L137 encePairwiseOnDemand]: 405/418 looper letters, 183 selfloop transitions, 92 changer transitions 0/293 dead transitions. [2023-08-31 19:03:46,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 293 transitions, 4220 flow [2023-08-31 19:03:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:03:46,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:03:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1729 transitions. [2023-08-31 19:03:46,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41363636363636364 [2023-08-31 19:03:46,073 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1729 transitions. [2023-08-31 19:03:46,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1729 transitions. [2023-08-31 19:03:46,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:46,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1729 transitions. [2023-08-31 19:03:46,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 172.9) internal successors, (1729), 10 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:46,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:46,081 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:46,081 INFO L175 Difference]: Start difference. First operand has 123 places, 194 transitions, 2539 flow. Second operand 10 states and 1729 transitions. [2023-08-31 19:03:46,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 293 transitions, 4220 flow [2023-08-31 19:03:46,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 293 transitions, 4163 flow, removed 16 selfloop flow, removed 3 redundant places. [2023-08-31 19:03:46,110 INFO L231 Difference]: Finished difference. Result has 135 places, 240 transitions, 3667 flow [2023-08-31 19:03:46,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=2499, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3667, PETRI_PLACES=135, PETRI_TRANSITIONS=240} [2023-08-31 19:03:46,112 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 61 predicate places. [2023-08-31 19:03:46,113 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 240 transitions, 3667 flow [2023-08-31 19:03:46,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 164.4) internal successors, (1644), 10 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:46,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:46,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:46,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 19:03:46,114 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:46,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:46,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1528402961, now seen corresponding path program 3 times [2023-08-31 19:03:46,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:46,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463960019] [2023-08-31 19:03:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:46,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:46,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:46,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463960019] [2023-08-31 19:03:46,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463960019] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:46,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:46,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:03:46,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49581175] [2023-08-31 19:03:46,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:46,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:03:46,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:46,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:03:46,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:03:47,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-08-31 19:03:47,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 240 transitions, 3667 flow. Second operand has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:47,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:47,299 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-08-31 19:03:47,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:48,444 INFO L130 PetriNetUnfolder]: 580/1312 cut-off events. [2023-08-31 19:03:48,444 INFO L131 PetriNetUnfolder]: For 12661/12662 co-relation queries the response was YES. [2023-08-31 19:03:48,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8374 conditions, 1312 events. 580/1312 cut-off events. For 12661/12662 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7316 event pairs, 118 based on Foata normal form. 5/1289 useless extension candidates. Maximal degree in co-relation 8335. Up to 694 conditions per place. [2023-08-31 19:03:48,453 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 150 selfloop transitions, 115 changer transitions 0/283 dead transitions. [2023-08-31 19:03:48,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 283 transitions, 4624 flow [2023-08-31 19:03:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-31 19:03:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-31 19:03:48,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1557 transitions. [2023-08-31 19:03:48,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4138755980861244 [2023-08-31 19:03:48,459 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1557 transitions. [2023-08-31 19:03:48,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1557 transitions. [2023-08-31 19:03:48,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:48,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1557 transitions. [2023-08-31 19:03:48,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 173.0) internal successors, (1557), 9 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:48,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 418.0) internal successors, (4180), 10 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:48,469 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 418.0) internal successors, (4180), 10 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:48,469 INFO L175 Difference]: Start difference. First operand has 135 places, 240 transitions, 3667 flow. Second operand 9 states and 1557 transitions. [2023-08-31 19:03:48,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 283 transitions, 4624 flow [2023-08-31 19:03:48,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 283 transitions, 4579 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-31 19:03:48,511 INFO L231 Difference]: Finished difference. Result has 143 places, 255 transitions, 4337 flow [2023-08-31 19:03:48,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=3626, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4337, PETRI_PLACES=143, PETRI_TRANSITIONS=255} [2023-08-31 19:03:48,513 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 69 predicate places. [2023-08-31 19:03:48,513 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 255 transitions, 4337 flow [2023-08-31 19:03:48,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:48,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:48,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:48,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 19:03:48,514 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:48,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash 653576368, now seen corresponding path program 2 times [2023-08-31 19:03:48,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:48,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156263792] [2023-08-31 19:03:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:48,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:49,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:49,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:49,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156263792] [2023-08-31 19:03:49,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156263792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:49,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:49,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:03:49,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621163390] [2023-08-31 19:03:49,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:49,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:03:49,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:49,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:03:49,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:03:50,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-08-31 19:03:50,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 255 transitions, 4337 flow. Second operand has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:50,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:50,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-08-31 19:03:50,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:51,371 INFO L130 PetriNetUnfolder]: 653/1490 cut-off events. [2023-08-31 19:03:51,371 INFO L131 PetriNetUnfolder]: For 17150/17151 co-relation queries the response was YES. [2023-08-31 19:03:51,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10053 conditions, 1490 events. 653/1490 cut-off events. For 17150/17151 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8809 event pairs, 129 based on Foata normal form. 5/1463 useless extension candidates. Maximal degree in co-relation 10011. Up to 755 conditions per place. [2023-08-31 19:03:51,382 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 183 selfloop transitions, 121 changer transitions 0/322 dead transitions. [2023-08-31 19:03:51,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 322 transitions, 5681 flow [2023-08-31 19:03:51,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:03:51,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:03:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1733 transitions. [2023-08-31 19:03:51,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4145933014354067 [2023-08-31 19:03:51,385 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1733 transitions. [2023-08-31 19:03:51,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1733 transitions. [2023-08-31 19:03:51,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:51,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1733 transitions. [2023-08-31 19:03:51,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 173.3) internal successors, (1733), 10 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:51,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:51,393 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:51,393 INFO L175 Difference]: Start difference. First operand has 143 places, 255 transitions, 4337 flow. Second operand 10 states and 1733 transitions. [2023-08-31 19:03:51,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 322 transitions, 5681 flow [2023-08-31 19:03:51,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 322 transitions, 5609 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 19:03:51,432 INFO L231 Difference]: Finished difference. Result has 152 places, 287 transitions, 5211 flow [2023-08-31 19:03:51,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=4265, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5211, PETRI_PLACES=152, PETRI_TRANSITIONS=287} [2023-08-31 19:03:51,433 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 78 predicate places. [2023-08-31 19:03:51,433 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 287 transitions, 5211 flow [2023-08-31 19:03:51,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:51,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:51,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:51,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-31 19:03:51,434 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:51,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:51,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1799577941, now seen corresponding path program 4 times [2023-08-31 19:03:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:51,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398481353] [2023-08-31 19:03:51,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:51,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:51,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:51,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:51,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398481353] [2023-08-31 19:03:51,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398481353] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:51,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:51,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:03:51,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079565024] [2023-08-31 19:03:51,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:51,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:03:51,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:51,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:03:51,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:03:52,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-08-31 19:03:52,892 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 287 transitions, 5211 flow. Second operand has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:52,892 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:52,893 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-08-31 19:03:52,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:54,285 INFO L130 PetriNetUnfolder]: 674/1591 cut-off events. [2023-08-31 19:03:54,285 INFO L131 PetriNetUnfolder]: For 21266/21268 co-relation queries the response was YES. [2023-08-31 19:03:54,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11037 conditions, 1591 events. 674/1591 cut-off events. For 21266/21268 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9848 event pairs, 130 based on Foata normal form. 6/1558 useless extension candidates. Maximal degree in co-relation 10990. Up to 811 conditions per place. [2023-08-31 19:03:54,295 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 176 selfloop transitions, 137 changer transitions 0/331 dead transitions. [2023-08-31 19:03:54,295 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 331 transitions, 6259 flow [2023-08-31 19:03:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:03:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:03:54,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1726 transitions. [2023-08-31 19:03:54,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41291866028708135 [2023-08-31 19:03:54,299 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1726 transitions. [2023-08-31 19:03:54,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1726 transitions. [2023-08-31 19:03:54,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:54,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1726 transitions. [2023-08-31 19:03:54,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 172.6) internal successors, (1726), 10 states have internal predecessors, (1726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:54,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:54,307 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:54,307 INFO L175 Difference]: Start difference. First operand has 152 places, 287 transitions, 5211 flow. Second operand 10 states and 1726 transitions. [2023-08-31 19:03:54,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 331 transitions, 6259 flow [2023-08-31 19:03:54,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 331 transitions, 6112 flow, removed 25 selfloop flow, removed 3 redundant places. [2023-08-31 19:03:54,374 INFO L231 Difference]: Finished difference. Result has 162 places, 303 transitions, 5816 flow [2023-08-31 19:03:54,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=5069, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5816, PETRI_PLACES=162, PETRI_TRANSITIONS=303} [2023-08-31 19:03:54,375 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 88 predicate places. [2023-08-31 19:03:54,375 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 303 transitions, 5816 flow [2023-08-31 19:03:54,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:54,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:54,376 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:54,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-31 19:03:54,376 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:54,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1805506288, now seen corresponding path program 3 times [2023-08-31 19:03:54,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:54,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759476447] [2023-08-31 19:03:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:54,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:54,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:54,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:54,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759476447] [2023-08-31 19:03:54,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759476447] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:54,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:54,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:03:54,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765875596] [2023-08-31 19:03:54,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:54,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:03:54,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:54,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:03:54,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:03:55,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-08-31 19:03:55,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 303 transitions, 5816 flow. Second operand has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:55,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:55,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-08-31 19:03:55,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:57,194 INFO L130 PetriNetUnfolder]: 720/1715 cut-off events. [2023-08-31 19:03:57,194 INFO L131 PetriNetUnfolder]: For 25436/25438 co-relation queries the response was YES. [2023-08-31 19:03:57,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12395 conditions, 1715 events. 720/1715 cut-off events. For 25436/25438 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 10981 event pairs, 121 based on Foata normal form. 6/1678 useless extension candidates. Maximal degree in co-relation 12344. Up to 879 conditions per place. [2023-08-31 19:03:57,208 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 198 selfloop transitions, 140 changer transitions 0/356 dead transitions. [2023-08-31 19:03:57,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 356 transitions, 7114 flow [2023-08-31 19:03:57,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:03:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:03:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1729 transitions. [2023-08-31 19:03:57,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41363636363636364 [2023-08-31 19:03:57,211 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1729 transitions. [2023-08-31 19:03:57,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1729 transitions. [2023-08-31 19:03:57,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:03:57,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1729 transitions. [2023-08-31 19:03:57,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 172.9) internal successors, (1729), 10 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:57,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:57,219 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:57,219 INFO L175 Difference]: Start difference. First operand has 162 places, 303 transitions, 5816 flow. Second operand 10 states and 1729 transitions. [2023-08-31 19:03:57,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 356 transitions, 7114 flow [2023-08-31 19:03:57,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 356 transitions, 7052 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-08-31 19:03:57,315 INFO L231 Difference]: Finished difference. Result has 172 places, 325 transitions, 6767 flow [2023-08-31 19:03:57,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=5754, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6767, PETRI_PLACES=172, PETRI_TRANSITIONS=325} [2023-08-31 19:03:57,316 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 98 predicate places. [2023-08-31 19:03:57,316 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 325 transitions, 6767 flow [2023-08-31 19:03:57,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:57,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:03:57,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:03:57,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-31 19:03:57,317 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:03:57,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:03:57,318 INFO L85 PathProgramCache]: Analyzing trace with hash -748657323, now seen corresponding path program 5 times [2023-08-31 19:03:57,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:03:57,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176511944] [2023-08-31 19:03:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:03:57,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:03:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:03:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:03:57,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:03:57,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176511944] [2023-08-31 19:03:57,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176511944] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:03:57,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:03:57,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:03:57,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666765910] [2023-08-31 19:03:57,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:03:57,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:03:57,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:03:57,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:03:57,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:03:58,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-08-31 19:03:58,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 325 transitions, 6767 flow. Second operand has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:03:58,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:03:58,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-08-31 19:03:58,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:03:59,993 INFO L130 PetriNetUnfolder]: 751/1841 cut-off events. [2023-08-31 19:03:59,994 INFO L131 PetriNetUnfolder]: For 31785/31788 co-relation queries the response was YES. [2023-08-31 19:04:00,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13813 conditions, 1841 events. 751/1841 cut-off events. For 31785/31788 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 12220 event pairs, 146 based on Foata normal form. 7/1798 useless extension candidates. Maximal degree in co-relation 13757. Up to 883 conditions per place. [2023-08-31 19:04:00,009 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 196 selfloop transitions, 160 changer transitions 0/374 dead transitions. [2023-08-31 19:04:00,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 374 transitions, 8011 flow [2023-08-31 19:04:00,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:04:00,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:04:00,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1729 transitions. [2023-08-31 19:04:00,012 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41363636363636364 [2023-08-31 19:04:00,012 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1729 transitions. [2023-08-31 19:04:00,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1729 transitions. [2023-08-31 19:04:00,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:00,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1729 transitions. [2023-08-31 19:04:00,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 172.9) internal successors, (1729), 10 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:00,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:00,019 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:00,019 INFO L175 Difference]: Start difference. First operand has 172 places, 325 transitions, 6767 flow. Second operand 10 states and 1729 transitions. [2023-08-31 19:04:00,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 374 transitions, 8011 flow [2023-08-31 19:04:00,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 374 transitions, 7948 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-08-31 19:04:00,142 INFO L231 Difference]: Finished difference. Result has 183 places, 345 transitions, 7753 flow [2023-08-31 19:04:00,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=6704, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7753, PETRI_PLACES=183, PETRI_TRANSITIONS=345} [2023-08-31 19:04:00,143 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 109 predicate places. [2023-08-31 19:04:00,143 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 345 transitions, 7753 flow [2023-08-31 19:04:00,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:00,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:00,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:00,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-31 19:04:00,144 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:00,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:00,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1084864346, now seen corresponding path program 4 times [2023-08-31 19:04:00,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:00,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880296590] [2023-08-31 19:04:00,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:00,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:00,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:00,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880296590] [2023-08-31 19:04:00,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880296590] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:00,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:00,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-31 19:04:00,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051988379] [2023-08-31 19:04:00,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:00,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-31 19:04:00,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:00,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-31 19:04:00,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-31 19:04:01,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 418 [2023-08-31 19:04:01,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 345 transitions, 7753 flow. Second operand has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:01,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:01,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 418 [2023-08-31 19:04:01,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:02,778 INFO L130 PetriNetUnfolder]: 760/1906 cut-off events. [2023-08-31 19:04:02,778 INFO L131 PetriNetUnfolder]: For 39561/39563 co-relation queries the response was YES. [2023-08-31 19:04:02,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14930 conditions, 1906 events. 760/1906 cut-off events. For 39561/39563 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 13010 event pairs, 142 based on Foata normal form. 6/1857 useless extension candidates. Maximal degree in co-relation 14868. Up to 911 conditions per place. [2023-08-31 19:04:02,793 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 220 selfloop transitions, 158 changer transitions 0/396 dead transitions. [2023-08-31 19:04:02,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 396 transitions, 9131 flow [2023-08-31 19:04:02,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:04:02,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:04:02,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1731 transitions. [2023-08-31 19:04:02,796 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41411483253588516 [2023-08-31 19:04:02,796 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1731 transitions. [2023-08-31 19:04:02,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1731 transitions. [2023-08-31 19:04:02,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:02,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1731 transitions. [2023-08-31 19:04:02,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 173.1) internal successors, (1731), 10 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:02,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:02,803 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:02,803 INFO L175 Difference]: Start difference. First operand has 183 places, 345 transitions, 7753 flow. Second operand 10 states and 1731 transitions. [2023-08-31 19:04:02,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 396 transitions, 9131 flow [2023-08-31 19:04:02,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 396 transitions, 9002 flow, removed 38 selfloop flow, removed 5 redundant places. [2023-08-31 19:04:02,985 INFO L231 Difference]: Finished difference. Result has 192 places, 366 transitions, 8654 flow [2023-08-31 19:04:02,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=7624, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8654, PETRI_PLACES=192, PETRI_TRANSITIONS=366} [2023-08-31 19:04:02,985 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 118 predicate places. [2023-08-31 19:04:02,986 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 366 transitions, 8654 flow [2023-08-31 19:04:02,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:02,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:02,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:02,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-31 19:04:02,986 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:02,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:02,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1741553104, now seen corresponding path program 1 times [2023-08-31 19:04:02,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:02,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513319537] [2023-08-31 19:04:02,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:02,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:03,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:03,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513319537] [2023-08-31 19:04:03,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513319537] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:03,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:03,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:03,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489832584] [2023-08-31 19:04:03,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:03,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:03,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:03,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:03,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:04,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:04,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 366 transitions, 8654 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:04,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:04,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:04,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:05,488 INFO L130 PetriNetUnfolder]: 1084/2717 cut-off events. [2023-08-31 19:04:05,488 INFO L131 PetriNetUnfolder]: For 62469/62479 co-relation queries the response was YES. [2023-08-31 19:04:05,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22005 conditions, 2717 events. 1084/2717 cut-off events. For 62469/62479 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 20123 event pairs, 152 based on Foata normal form. 12/2656 useless extension candidates. Maximal degree in co-relation 21941. Up to 1286 conditions per place. [2023-08-31 19:04:05,506 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 359 selfloop transitions, 201 changer transitions 0/578 dead transitions. [2023-08-31 19:04:05,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 578 transitions, 13772 flow [2023-08-31 19:04:05,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-31 19:04:05,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-31 19:04:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2636 transitions. [2023-08-31 19:04:05,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.420414673046252 [2023-08-31 19:04:05,509 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2636 transitions. [2023-08-31 19:04:05,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2636 transitions. [2023-08-31 19:04:05,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:05,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2636 transitions. [2023-08-31 19:04:05,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 175.73333333333332) internal successors, (2636), 15 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:05,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 418.0) internal successors, (6688), 16 states have internal predecessors, (6688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:05,518 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 418.0) internal successors, (6688), 16 states have internal predecessors, (6688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:05,518 INFO L175 Difference]: Start difference. First operand has 192 places, 366 transitions, 8654 flow. Second operand 15 states and 2636 transitions. [2023-08-31 19:04:05,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 578 transitions, 13772 flow [2023-08-31 19:04:05,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 578 transitions, 13616 flow, removed 60 selfloop flow, removed 3 redundant places. [2023-08-31 19:04:05,758 INFO L231 Difference]: Finished difference. Result has 212 places, 436 transitions, 11242 flow [2023-08-31 19:04:05,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=8583, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11242, PETRI_PLACES=212, PETRI_TRANSITIONS=436} [2023-08-31 19:04:05,758 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 138 predicate places. [2023-08-31 19:04:05,759 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 436 transitions, 11242 flow [2023-08-31 19:04:05,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:05,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:05,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:05,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-31 19:04:05,760 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:05,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:05,760 INFO L85 PathProgramCache]: Analyzing trace with hash -692240750, now seen corresponding path program 2 times [2023-08-31 19:04:05,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:05,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091307627] [2023-08-31 19:04:05,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:05,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:06,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:06,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091307627] [2023-08-31 19:04:06,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091307627] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:06,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:06,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:06,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536917263] [2023-08-31 19:04:06,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:06,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:06,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:06,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:06,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:06,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:06,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 436 transitions, 11242 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:06,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:06,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:06,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:08,365 INFO L130 PetriNetUnfolder]: 1092/2757 cut-off events. [2023-08-31 19:04:08,365 INFO L131 PetriNetUnfolder]: For 73271/73279 co-relation queries the response was YES. [2023-08-31 19:04:08,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23296 conditions, 2757 events. 1092/2757 cut-off events. For 73271/73279 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 20552 event pairs, 157 based on Foata normal form. 10/2690 useless extension candidates. Maximal degree in co-relation 23223. Up to 1294 conditions per place. [2023-08-31 19:04:08,387 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 377 selfloop transitions, 176 changer transitions 0/571 dead transitions. [2023-08-31 19:04:08,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 571 transitions, 14531 flow [2023-08-31 19:04:08,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:04:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:04:08,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1941 transitions. [2023-08-31 19:04:08,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4221400608960418 [2023-08-31 19:04:08,389 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1941 transitions. [2023-08-31 19:04:08,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1941 transitions. [2023-08-31 19:04:08,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:08,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1941 transitions. [2023-08-31 19:04:08,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 176.45454545454547) internal successors, (1941), 11 states have internal predecessors, (1941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:08,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:08,394 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:08,395 INFO L175 Difference]: Start difference. First operand has 212 places, 436 transitions, 11242 flow. Second operand 11 states and 1941 transitions. [2023-08-31 19:04:08,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 571 transitions, 14531 flow [2023-08-31 19:04:08,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 571 transitions, 14443 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-31 19:04:08,657 INFO L231 Difference]: Finished difference. Result has 225 places, 472 transitions, 12827 flow [2023-08-31 19:04:08,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=11154, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12827, PETRI_PLACES=225, PETRI_TRANSITIONS=472} [2023-08-31 19:04:08,657 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 151 predicate places. [2023-08-31 19:04:08,658 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 472 transitions, 12827 flow [2023-08-31 19:04:08,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:08,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:08,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:08,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-31 19:04:08,659 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:08,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:08,659 INFO L85 PathProgramCache]: Analyzing trace with hash -72947377, now seen corresponding path program 1 times [2023-08-31 19:04:08,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:08,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965529825] [2023-08-31 19:04:08,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:08,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:09,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:09,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:09,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965529825] [2023-08-31 19:04:09,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965529825] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:09,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:09,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:09,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685119022] [2023-08-31 19:04:09,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:09,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:09,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:09,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:09,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:09,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:09,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 472 transitions, 12827 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:09,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:09,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:09,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:11,036 INFO L130 PetriNetUnfolder]: 1100/2797 cut-off events. [2023-08-31 19:04:11,037 INFO L131 PetriNetUnfolder]: For 84055/84055 co-relation queries the response was YES. [2023-08-31 19:04:11,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24581 conditions, 2797 events. 1100/2797 cut-off events. For 84055/84055 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 20993 event pairs, 172 based on Foata normal form. 2/2718 useless extension candidates. Maximal degree in co-relation 24501. Up to 1302 conditions per place. [2023-08-31 19:04:11,059 INFO L137 encePairwiseOnDemand]: 405/418 looper letters, 337 selfloop transitions, 187 changer transitions 0/542 dead transitions. [2023-08-31 19:04:11,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 542 transitions, 14632 flow [2023-08-31 19:04:11,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:04:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:04:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1924 transitions. [2023-08-31 19:04:11,061 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4184428012179208 [2023-08-31 19:04:11,061 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1924 transitions. [2023-08-31 19:04:11,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1924 transitions. [2023-08-31 19:04:11,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:11,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1924 transitions. [2023-08-31 19:04:11,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 174.9090909090909) internal successors, (1924), 11 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:11,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:11,065 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:11,065 INFO L175 Difference]: Start difference. First operand has 225 places, 472 transitions, 12827 flow. Second operand 11 states and 1924 transitions. [2023-08-31 19:04:11,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 542 transitions, 14632 flow [2023-08-31 19:04:11,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 542 transitions, 14566 flow, removed 29 selfloop flow, removed 3 redundant places. [2023-08-31 19:04:11,379 INFO L231 Difference]: Finished difference. Result has 237 places, 498 transitions, 13968 flow [2023-08-31 19:04:11,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=12763, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13968, PETRI_PLACES=237, PETRI_TRANSITIONS=498} [2023-08-31 19:04:11,380 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 163 predicate places. [2023-08-31 19:04:11,380 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 498 transitions, 13968 flow [2023-08-31 19:04:11,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:11,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:11,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:11,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-31 19:04:11,381 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:11,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:11,381 INFO L85 PathProgramCache]: Analyzing trace with hash -145757618, now seen corresponding path program 3 times [2023-08-31 19:04:11,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:11,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74655905] [2023-08-31 19:04:11,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:11,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:11,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:11,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:11,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74655905] [2023-08-31 19:04:11,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74655905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:11,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:11,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:11,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051126836] [2023-08-31 19:04:11,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:11,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:11,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:11,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:11,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:12,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:12,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 498 transitions, 13968 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:12,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:12,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:12,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:14,347 INFO L130 PetriNetUnfolder]: 1162/2941 cut-off events. [2023-08-31 19:04:14,347 INFO L131 PetriNetUnfolder]: For 98670/98678 co-relation queries the response was YES. [2023-08-31 19:04:14,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26509 conditions, 2941 events. 1162/2941 cut-off events. For 98670/98678 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 22400 event pairs, 186 based on Foata normal form. 10/2866 useless extension candidates. Maximal degree in co-relation 26424. Up to 1380 conditions per place. [2023-08-31 19:04:14,374 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 297 selfloop transitions, 241 changer transitions 0/556 dead transitions. [2023-08-31 19:04:14,374 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 556 transitions, 15879 flow [2023-08-31 19:04:14,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:04:14,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:04:14,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1929 transitions. [2023-08-31 19:04:14,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4195302305350152 [2023-08-31 19:04:14,376 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1929 transitions. [2023-08-31 19:04:14,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1929 transitions. [2023-08-31 19:04:14,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:14,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1929 transitions. [2023-08-31 19:04:14,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 175.36363636363637) internal successors, (1929), 11 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:14,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:14,380 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:14,380 INFO L175 Difference]: Start difference. First operand has 237 places, 498 transitions, 13968 flow. Second operand 11 states and 1929 transitions. [2023-08-31 19:04:14,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 556 transitions, 15879 flow [2023-08-31 19:04:14,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 556 transitions, 15857 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-31 19:04:14,778 INFO L231 Difference]: Finished difference. Result has 249 places, 520 transitions, 15264 flow [2023-08-31 19:04:14,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=13946, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=221, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15264, PETRI_PLACES=249, PETRI_TRANSITIONS=520} [2023-08-31 19:04:14,778 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 175 predicate places. [2023-08-31 19:04:14,778 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 520 transitions, 15264 flow [2023-08-31 19:04:14,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:14,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:14,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:14,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-31 19:04:14,779 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:14,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:14,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1080257763, now seen corresponding path program 2 times [2023-08-31 19:04:14,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:14,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246614166] [2023-08-31 19:04:14,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:14,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:15,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:15,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:15,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246614166] [2023-08-31 19:04:15,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246614166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:15,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:15,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:15,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371474912] [2023-08-31 19:04:15,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:15,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:15,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:15,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:15,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:16,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:16,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 520 transitions, 15264 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:16,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:16,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:16,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:17,744 INFO L130 PetriNetUnfolder]: 1262/3097 cut-off events. [2023-08-31 19:04:17,744 INFO L131 PetriNetUnfolder]: For 120442/120446 co-relation queries the response was YES. [2023-08-31 19:04:17,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29314 conditions, 3097 events. 1262/3097 cut-off events. For 120442/120446 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 23445 event pairs, 169 based on Foata normal form. 6/3020 useless extension candidates. Maximal degree in co-relation 29224. Up to 1496 conditions per place. [2023-08-31 19:04:17,774 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 306 selfloop transitions, 267 changer transitions 0/591 dead transitions. [2023-08-31 19:04:17,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 591 transitions, 17639 flow [2023-08-31 19:04:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:04:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:04:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1928 transitions. [2023-08-31 19:04:17,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41931274467159635 [2023-08-31 19:04:17,776 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1928 transitions. [2023-08-31 19:04:17,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1928 transitions. [2023-08-31 19:04:17,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:17,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1928 transitions. [2023-08-31 19:04:17,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 175.27272727272728) internal successors, (1928), 11 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:17,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:17,782 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:17,782 INFO L175 Difference]: Start difference. First operand has 249 places, 520 transitions, 15264 flow. Second operand 11 states and 1928 transitions. [2023-08-31 19:04:17,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 591 transitions, 17639 flow [2023-08-31 19:04:18,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 591 transitions, 17472 flow, removed 40 selfloop flow, removed 5 redundant places. [2023-08-31 19:04:18,184 INFO L231 Difference]: Finished difference. Result has 259 places, 554 transitions, 16965 flow [2023-08-31 19:04:18,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=15103, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=237, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=16965, PETRI_PLACES=259, PETRI_TRANSITIONS=554} [2023-08-31 19:04:18,185 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 185 predicate places. [2023-08-31 19:04:18,185 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 554 transitions, 16965 flow [2023-08-31 19:04:18,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:18,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:18,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:18,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-31 19:04:18,186 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:18,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:18,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2131111056, now seen corresponding path program 4 times [2023-08-31 19:04:18,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:18,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495341832] [2023-08-31 19:04:18,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:18,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:18,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:18,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495341832] [2023-08-31 19:04:18,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495341832] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:18,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:18,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:18,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946447955] [2023-08-31 19:04:18,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:18,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:18,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:18,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:19,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:19,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 554 transitions, 16965 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:19,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:19,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:19,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:21,072 INFO L130 PetriNetUnfolder]: 1350/3317 cut-off events. [2023-08-31 19:04:21,073 INFO L131 PetriNetUnfolder]: For 139989/139997 co-relation queries the response was YES. [2023-08-31 19:04:21,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32356 conditions, 3317 events. 1350/3317 cut-off events. For 139989/139997 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 25634 event pairs, 181 based on Foata normal form. 10/3234 useless extension candidates. Maximal degree in co-relation 32262. Up to 1604 conditions per place. [2023-08-31 19:04:21,106 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 318 selfloop transitions, 286 changer transitions 0/622 dead transitions. [2023-08-31 19:04:21,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 622 transitions, 19395 flow [2023-08-31 19:04:21,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:04:21,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:04:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1928 transitions. [2023-08-31 19:04:21,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41931274467159635 [2023-08-31 19:04:21,108 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1928 transitions. [2023-08-31 19:04:21,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1928 transitions. [2023-08-31 19:04:21,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:21,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1928 transitions. [2023-08-31 19:04:21,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 175.27272727272728) internal successors, (1928), 11 states have internal predecessors, (1928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:21,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:21,112 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:21,112 INFO L175 Difference]: Start difference. First operand has 259 places, 554 transitions, 16965 flow. Second operand 11 states and 1928 transitions. [2023-08-31 19:04:21,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 622 transitions, 19395 flow [2023-08-31 19:04:21,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 622 transitions, 19087 flow, removed 34 selfloop flow, removed 5 redundant places. [2023-08-31 19:04:21,657 INFO L231 Difference]: Finished difference. Result has 269 places, 585 transitions, 18559 flow [2023-08-31 19:04:21,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=16677, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=256, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=18559, PETRI_PLACES=269, PETRI_TRANSITIONS=585} [2023-08-31 19:04:21,658 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 195 predicate places. [2023-08-31 19:04:21,658 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 585 transitions, 18559 flow [2023-08-31 19:04:21,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:21,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:21,658 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:21,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-31 19:04:21,658 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:21,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:21,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1511545741, now seen corresponding path program 3 times [2023-08-31 19:04:21,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:21,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701021670] [2023-08-31 19:04:21,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:21,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:22,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:22,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701021670] [2023-08-31 19:04:22,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701021670] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:22,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:22,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:22,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679819745] [2023-08-31 19:04:22,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:22,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:22,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:22,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:22,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:22,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:22,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 585 transitions, 18559 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:22,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:22,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:22,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:24,895 INFO L130 PetriNetUnfolder]: 1352/3317 cut-off events. [2023-08-31 19:04:24,895 INFO L131 PetriNetUnfolder]: For 148448/148450 co-relation queries the response was YES. [2023-08-31 19:04:24,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33757 conditions, 3317 events. 1352/3317 cut-off events. For 148448/148450 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 25551 event pairs, 210 based on Foata normal form. 4/3230 useless extension candidates. Maximal degree in co-relation 33659. Up to 1618 conditions per place. [2023-08-31 19:04:24,923 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 342 selfloop transitions, 274 changer transitions 0/634 dead transitions. [2023-08-31 19:04:24,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 634 transitions, 20516 flow [2023-08-31 19:04:24,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:04:24,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:04:24,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1929 transitions. [2023-08-31 19:04:24,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4195302305350152 [2023-08-31 19:04:24,926 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1929 transitions. [2023-08-31 19:04:24,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1929 transitions. [2023-08-31 19:04:24,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:24,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1929 transitions. [2023-08-31 19:04:24,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 175.36363636363637) internal successors, (1929), 11 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:24,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:24,932 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:24,932 INFO L175 Difference]: Start difference. First operand has 269 places, 585 transitions, 18559 flow. Second operand 11 states and 1929 transitions. [2023-08-31 19:04:24,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 634 transitions, 20516 flow [2023-08-31 19:04:25,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 634 transitions, 20366 flow, removed 36 selfloop flow, removed 5 redundant places. [2023-08-31 19:04:25,454 INFO L231 Difference]: Finished difference. Result has 280 places, 603 transitions, 20003 flow [2023-08-31 19:04:25,455 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=18413, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=257, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20003, PETRI_PLACES=280, PETRI_TRANSITIONS=603} [2023-08-31 19:04:25,455 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 206 predicate places. [2023-08-31 19:04:25,455 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 603 transitions, 20003 flow [2023-08-31 19:04:25,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:25,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:25,456 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:25,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-31 19:04:25,456 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:25,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:25,456 INFO L85 PathProgramCache]: Analyzing trace with hash 135915952, now seen corresponding path program 5 times [2023-08-31 19:04:25,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:25,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232007566] [2023-08-31 19:04:25,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:25,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:25,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:25,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:25,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232007566] [2023-08-31 19:04:25,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232007566] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:25,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:25,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:25,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495917406] [2023-08-31 19:04:25,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:25,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:25,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:25,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:25,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:26,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:26,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 603 transitions, 20003 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:26,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:26,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:26,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:28,943 INFO L130 PetriNetUnfolder]: 1414/3497 cut-off events. [2023-08-31 19:04:28,943 INFO L131 PetriNetUnfolder]: For 177667/177675 co-relation queries the response was YES. [2023-08-31 19:04:28,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36454 conditions, 3497 events. 1414/3497 cut-off events. For 177667/177675 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 27484 event pairs, 193 based on Foata normal form. 10/3406 useless extension candidates. Maximal degree in co-relation 36351. Up to 1700 conditions per place. [2023-08-31 19:04:28,978 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 317 selfloop transitions, 316 changer transitions 0/651 dead transitions. [2023-08-31 19:04:28,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 651 transitions, 22314 flow [2023-08-31 19:04:28,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:04:28,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:04:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1753 transitions. [2023-08-31 19:04:28,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.419377990430622 [2023-08-31 19:04:28,980 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1753 transitions. [2023-08-31 19:04:28,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1753 transitions. [2023-08-31 19:04:28,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:28,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1753 transitions. [2023-08-31 19:04:28,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 175.3) internal successors, (1753), 10 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:28,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:28,984 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:28,984 INFO L175 Difference]: Start difference. First operand has 280 places, 603 transitions, 20003 flow. Second operand 10 states and 1753 transitions. [2023-08-31 19:04:28,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 651 transitions, 22314 flow [2023-08-31 19:04:29,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 651 transitions, 22154 flow, removed 46 selfloop flow, removed 5 redundant places. [2023-08-31 19:04:29,635 INFO L231 Difference]: Finished difference. Result has 287 places, 619 transitions, 21588 flow [2023-08-31 19:04:29,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=19847, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=300, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=21588, PETRI_PLACES=287, PETRI_TRANSITIONS=619} [2023-08-31 19:04:29,636 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 213 predicate places. [2023-08-31 19:04:29,636 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 619 transitions, 21588 flow [2023-08-31 19:04:29,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:29,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:29,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:29,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-31 19:04:29,637 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:29,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:29,638 INFO L85 PathProgramCache]: Analyzing trace with hash 244279134, now seen corresponding path program 6 times [2023-08-31 19:04:29,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:29,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020503305] [2023-08-31 19:04:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:29,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:30,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:30,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020503305] [2023-08-31 19:04:30,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020503305] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:30,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:30,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:30,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509040997] [2023-08-31 19:04:30,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:30,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:30,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:30,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:30,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:31,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:31,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 619 transitions, 21588 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:31,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:31,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:31,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:33,165 INFO L130 PetriNetUnfolder]: 1448/3621 cut-off events. [2023-08-31 19:04:33,166 INFO L131 PetriNetUnfolder]: For 193778/193786 co-relation queries the response was YES. [2023-08-31 19:04:33,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38440 conditions, 3621 events. 1448/3621 cut-off events. For 193778/193786 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 28897 event pairs, 193 based on Foata normal form. 10/3522 useless extension candidates. Maximal degree in co-relation 38336. Up to 1754 conditions per place. [2023-08-31 19:04:33,207 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 322 selfloop transitions, 326 changer transitions 0/666 dead transitions. [2023-08-31 19:04:33,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 666 transitions, 23674 flow [2023-08-31 19:04:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:04:33,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:04:33,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1925 transitions. [2023-08-31 19:04:33,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41866028708133973 [2023-08-31 19:04:33,209 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1925 transitions. [2023-08-31 19:04:33,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1925 transitions. [2023-08-31 19:04:33,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:33,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1925 transitions. [2023-08-31 19:04:33,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 175.0) internal successors, (1925), 11 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:33,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:33,215 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:33,215 INFO L175 Difference]: Start difference. First operand has 287 places, 619 transitions, 21588 flow. Second operand 11 states and 1925 transitions. [2023-08-31 19:04:33,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 666 transitions, 23674 flow [2023-08-31 19:04:34,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 666 transitions, 23039 flow, removed 9 selfloop flow, removed 8 redundant places. [2023-08-31 19:04:34,092 INFO L231 Difference]: Finished difference. Result has 293 places, 637 transitions, 22644 flow [2023-08-31 19:04:34,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=20966, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=309, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22644, PETRI_PLACES=293, PETRI_TRANSITIONS=637} [2023-08-31 19:04:34,093 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 219 predicate places. [2023-08-31 19:04:34,093 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 637 transitions, 22644 flow [2023-08-31 19:04:34,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:34,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:34,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:34,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-31 19:04:34,094 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:34,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:34,094 INFO L85 PathProgramCache]: Analyzing trace with hash -779847309, now seen corresponding path program 4 times [2023-08-31 19:04:34,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:34,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285245086] [2023-08-31 19:04:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:34,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:34,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:34,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:34,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285245086] [2023-08-31 19:04:34,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285245086] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:34,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:34,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-31 19:04:34,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698411132] [2023-08-31 19:04:34,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:34,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-31 19:04:34,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:34,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-31 19:04:34,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-31 19:04:35,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:04:35,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 637 transitions, 22644 flow. Second operand has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:35,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:35,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:04:35,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:37,565 INFO L130 PetriNetUnfolder]: 1466/3599 cut-off events. [2023-08-31 19:04:37,565 INFO L131 PetriNetUnfolder]: For 192774/192783 co-relation queries the response was YES. [2023-08-31 19:04:37,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39926 conditions, 3599 events. 1466/3599 cut-off events. For 192774/192783 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 28436 event pairs, 188 based on Foata normal form. 9/3510 useless extension candidates. Maximal degree in co-relation 39819. Up to 1800 conditions per place. [2023-08-31 19:04:37,607 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 325 selfloop transitions, 346 changer transitions 0/689 dead transitions. [2023-08-31 19:04:37,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 689 transitions, 25047 flow [2023-08-31 19:04:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-31 19:04:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-31 19:04:37,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1925 transitions. [2023-08-31 19:04:37,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41866028708133973 [2023-08-31 19:04:37,609 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1925 transitions. [2023-08-31 19:04:37,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1925 transitions. [2023-08-31 19:04:37,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:37,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1925 transitions. [2023-08-31 19:04:37,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 175.0) internal successors, (1925), 11 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:37,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:37,614 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 418.0) internal successors, (5016), 12 states have internal predecessors, (5016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:37,614 INFO L175 Difference]: Start difference. First operand has 293 places, 637 transitions, 22644 flow. Second operand 11 states and 1925 transitions. [2023-08-31 19:04:37,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 689 transitions, 25047 flow [2023-08-31 19:04:38,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 689 transitions, 24892 flow, removed 33 selfloop flow, removed 5 redundant places. [2023-08-31 19:04:38,412 INFO L231 Difference]: Finished difference. Result has 302 places, 660 transitions, 24522 flow [2023-08-31 19:04:38,412 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=22491, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=324, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=24522, PETRI_PLACES=302, PETRI_TRANSITIONS=660} [2023-08-31 19:04:38,413 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 228 predicate places. [2023-08-31 19:04:38,413 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 660 transitions, 24522 flow [2023-08-31 19:04:38,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 167.25) internal successors, (2007), 12 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:38,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:38,413 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:38,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-31 19:04:38,414 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:38,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:38,414 INFO L85 PathProgramCache]: Analyzing trace with hash -644346760, now seen corresponding path program 1 times [2023-08-31 19:04:38,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:38,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143804039] [2023-08-31 19:04:38,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:38,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:38,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:38,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:38,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143804039] [2023-08-31 19:04:38,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143804039] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:38,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:38,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:04:38,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592047259] [2023-08-31 19:04:38,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:38,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:04:38,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:38,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:04:38,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:04:39,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:04:39,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 660 transitions, 24522 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:39,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:39,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:04:39,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:41,642 INFO L130 PetriNetUnfolder]: 1466/3615 cut-off events. [2023-08-31 19:04:41,643 INFO L131 PetriNetUnfolder]: For 195336/195341 co-relation queries the response was YES. [2023-08-31 19:04:41,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41398 conditions, 3615 events. 1466/3615 cut-off events. For 195336/195341 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 28736 event pairs, 233 based on Foata normal form. 6/3521 useless extension candidates. Maximal degree in co-relation 41288. Up to 1800 conditions per place. [2023-08-31 19:04:41,686 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 557 selfloop transitions, 209 changer transitions 0/784 dead transitions. [2023-08-31 19:04:41,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 784 transitions, 28246 flow [2023-08-31 19:04:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:04:41,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:04:41,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2429 transitions. [2023-08-31 19:04:41,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150717703349282 [2023-08-31 19:04:41,689 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2429 transitions. [2023-08-31 19:04:41,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2429 transitions. [2023-08-31 19:04:41,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:41,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2429 transitions. [2023-08-31 19:04:41,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 173.5) internal successors, (2429), 14 states have internal predecessors, (2429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:41,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:41,696 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:41,696 INFO L175 Difference]: Start difference. First operand has 302 places, 660 transitions, 24522 flow. Second operand 14 states and 2429 transitions. [2023-08-31 19:04:41,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 784 transitions, 28246 flow [2023-08-31 19:04:42,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 784 transitions, 28048 flow, removed 24 selfloop flow, removed 6 redundant places. [2023-08-31 19:04:42,612 INFO L231 Difference]: Finished difference. Result has 316 places, 679 transitions, 25444 flow [2023-08-31 19:04:42,613 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=24333, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=190, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25444, PETRI_PLACES=316, PETRI_TRANSITIONS=679} [2023-08-31 19:04:42,614 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 242 predicate places. [2023-08-31 19:04:42,614 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 679 transitions, 25444 flow [2023-08-31 19:04:42,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:42,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:42,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:42,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-31 19:04:42,615 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:42,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:42,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1729148174, now seen corresponding path program 2 times [2023-08-31 19:04:42,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:42,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655669341] [2023-08-31 19:04:42,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:42,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:43,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:43,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655669341] [2023-08-31 19:04:43,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655669341] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:43,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:43,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:04:43,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701756305] [2023-08-31 19:04:43,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:43,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:04:43,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:43,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:04:43,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:04:44,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:04:44,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 679 transitions, 25444 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:44,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:44,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:04:44,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:46,518 INFO L130 PetriNetUnfolder]: 1488/3719 cut-off events. [2023-08-31 19:04:46,519 INFO L131 PetriNetUnfolder]: For 216026/216034 co-relation queries the response was YES. [2023-08-31 19:04:46,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42951 conditions, 3719 events. 1488/3719 cut-off events. For 216026/216034 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 30023 event pairs, 233 based on Foata normal form. 9/3623 useless extension candidates. Maximal degree in co-relation 42835. Up to 1826 conditions per place. [2023-08-31 19:04:46,561 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 560 selfloop transitions, 233 changer transitions 0/811 dead transitions. [2023-08-31 19:04:46,561 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 811 transitions, 29645 flow [2023-08-31 19:04:46,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:04:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:04:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2441 transitions. [2023-08-31 19:04:46,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41712235133287767 [2023-08-31 19:04:46,563 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2441 transitions. [2023-08-31 19:04:46,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2441 transitions. [2023-08-31 19:04:46,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:46,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2441 transitions. [2023-08-31 19:04:46,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 174.35714285714286) internal successors, (2441), 14 states have internal predecessors, (2441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:46,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:46,569 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:46,569 INFO L175 Difference]: Start difference. First operand has 316 places, 679 transitions, 25444 flow. Second operand 14 states and 2441 transitions. [2023-08-31 19:04:46,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 811 transitions, 29645 flow [2023-08-31 19:04:47,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 811 transitions, 29264 flow, removed 48 selfloop flow, removed 8 redundant places. [2023-08-31 19:04:47,407 INFO L231 Difference]: Finished difference. Result has 326 places, 699 transitions, 26411 flow [2023-08-31 19:04:47,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=25069, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=216, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=26411, PETRI_PLACES=326, PETRI_TRANSITIONS=699} [2023-08-31 19:04:47,408 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 252 predicate places. [2023-08-31 19:04:47,408 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 699 transitions, 26411 flow [2023-08-31 19:04:47,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:47,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:47,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:47,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-31 19:04:47,409 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:47,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:47,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1695097458, now seen corresponding path program 3 times [2023-08-31 19:04:47,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:47,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117775707] [2023-08-31 19:04:47,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:47,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:47,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:47,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117775707] [2023-08-31 19:04:47,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117775707] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:47,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:47,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:04:47,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730213699] [2023-08-31 19:04:47,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:47,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:04:47,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:47,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:04:47,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:04:48,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 418 [2023-08-31 19:04:48,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 699 transitions, 26411 flow. Second operand has 13 states, 13 states have (on average 162.30769230769232) internal successors, (2110), 13 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:48,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:48,955 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 418 [2023-08-31 19:04:48,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:51,192 INFO L130 PetriNetUnfolder]: 1524/3871 cut-off events. [2023-08-31 19:04:51,192 INFO L131 PetriNetUnfolder]: For 232355/232370 co-relation queries the response was YES. [2023-08-31 19:04:51,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44732 conditions, 3871 events. 1524/3871 cut-off events. For 232355/232370 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 31882 event pairs, 267 based on Foata normal form. 14/3773 useless extension candidates. Maximal degree in co-relation 44616. Up to 1876 conditions per place. [2023-08-31 19:04:51,240 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 559 selfloop transitions, 246 changer transitions 0/823 dead transitions. [2023-08-31 19:04:51,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 823 transitions, 30711 flow [2023-08-31 19:04:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 19:04:51,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 19:04:51,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2230 transitions. [2023-08-31 19:04:51,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4103790945896209 [2023-08-31 19:04:51,242 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2230 transitions. [2023-08-31 19:04:51,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2230 transitions. [2023-08-31 19:04:51,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:51,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2230 transitions. [2023-08-31 19:04:51,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 171.53846153846155) internal successors, (2230), 13 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:51,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:51,247 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:51,247 INFO L175 Difference]: Start difference. First operand has 326 places, 699 transitions, 26411 flow. Second operand 13 states and 2230 transitions. [2023-08-31 19:04:51,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 823 transitions, 30711 flow [2023-08-31 19:04:52,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 823 transitions, 30203 flow, removed 48 selfloop flow, removed 9 redundant places. [2023-08-31 19:04:52,238 INFO L231 Difference]: Finished difference. Result has 332 places, 712 transitions, 27164 flow [2023-08-31 19:04:52,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=25911, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=27164, PETRI_PLACES=332, PETRI_TRANSITIONS=712} [2023-08-31 19:04:52,238 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 258 predicate places. [2023-08-31 19:04:52,238 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 712 transitions, 27164 flow [2023-08-31 19:04:52,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 162.30769230769232) internal successors, (2110), 13 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:52,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:52,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:52,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-31 19:04:52,239 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:52,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1700755400, now seen corresponding path program 4 times [2023-08-31 19:04:52,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:52,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346672892] [2023-08-31 19:04:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:52,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:52,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:52,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346672892] [2023-08-31 19:04:52,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346672892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:52,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:52,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:04:52,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548588637] [2023-08-31 19:04:52,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:52,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:04:52,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:52,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:04:52,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:04:53,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:04:53,552 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 712 transitions, 27164 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:53,552 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:53,552 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:04:53,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:04:55,723 INFO L130 PetriNetUnfolder]: 1536/3972 cut-off events. [2023-08-31 19:04:55,723 INFO L131 PetriNetUnfolder]: For 238884/238898 co-relation queries the response was YES. [2023-08-31 19:04:55,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45354 conditions, 3972 events. 1536/3972 cut-off events. For 238884/238898 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 33290 event pairs, 273 based on Foata normal form. 13/3864 useless extension candidates. Maximal degree in co-relation 45236. Up to 1892 conditions per place. [2023-08-31 19:04:55,771 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 560 selfloop transitions, 251 changer transitions 0/829 dead transitions. [2023-08-31 19:04:55,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 829 transitions, 30879 flow [2023-08-31 19:04:55,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:04:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:04:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2438 transitions. [2023-08-31 19:04:55,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166097060833903 [2023-08-31 19:04:55,774 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2438 transitions. [2023-08-31 19:04:55,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2438 transitions. [2023-08-31 19:04:55,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:04:55,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2438 transitions. [2023-08-31 19:04:55,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 174.14285714285714) internal successors, (2438), 14 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:55,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:55,779 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:55,779 INFO L175 Difference]: Start difference. First operand has 332 places, 712 transitions, 27164 flow. Second operand 14 states and 2438 transitions. [2023-08-31 19:04:55,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 829 transitions, 30879 flow [2023-08-31 19:04:56,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 829 transitions, 30679 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-08-31 19:04:56,840 INFO L231 Difference]: Finished difference. Result has 343 places, 723 transitions, 27952 flow [2023-08-31 19:04:56,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=26964, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=712, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=27952, PETRI_PLACES=343, PETRI_TRANSITIONS=723} [2023-08-31 19:04:56,841 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 269 predicate places. [2023-08-31 19:04:56,841 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 723 transitions, 27952 flow [2023-08-31 19:04:56,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:56,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:04:56,842 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:04:56,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-31 19:04:56,842 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:04:56,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:04:56,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1244122744, now seen corresponding path program 5 times [2023-08-31 19:04:56,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:04:56,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350855555] [2023-08-31 19:04:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:04:56,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:04:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:04:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:04:57,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:04:57,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350855555] [2023-08-31 19:04:57,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350855555] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:04:57,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:04:57,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:04:57,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715647173] [2023-08-31 19:04:57,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:04:57,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:04:57,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:04:57,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:04:57,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:04:58,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:04:58,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 723 transitions, 27952 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:04:58,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:04:58,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:04:58,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:00,253 INFO L130 PetriNetUnfolder]: 1548/4097 cut-off events. [2023-08-31 19:05:00,253 INFO L131 PetriNetUnfolder]: For 248956/248963 co-relation queries the response was YES. [2023-08-31 19:05:00,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46471 conditions, 4097 events. 1548/4097 cut-off events. For 248956/248963 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 35099 event pairs, 293 based on Foata normal form. 8/3971 useless extension candidates. Maximal degree in co-relation 46349. Up to 1908 conditions per place. [2023-08-31 19:05:00,304 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 576 selfloop transitions, 241 changer transitions 0/835 dead transitions. [2023-08-31 19:05:00,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 835 transitions, 31538 flow [2023-08-31 19:05:00,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:05:00,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:05:00,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2440 transitions. [2023-08-31 19:05:00,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4169514695830485 [2023-08-31 19:05:00,306 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2440 transitions. [2023-08-31 19:05:00,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2440 transitions. [2023-08-31 19:05:00,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:00,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2440 transitions. [2023-08-31 19:05:00,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 174.28571428571428) internal successors, (2440), 14 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:00,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:00,311 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:00,311 INFO L175 Difference]: Start difference. First operand has 343 places, 723 transitions, 27952 flow. Second operand 14 states and 2440 transitions. [2023-08-31 19:05:00,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 835 transitions, 31538 flow [2023-08-31 19:05:01,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 835 transitions, 31099 flow, removed 26 selfloop flow, removed 9 redundant places. [2023-08-31 19:05:01,452 INFO L231 Difference]: Finished difference. Result has 352 places, 735 transitions, 28509 flow [2023-08-31 19:05:01,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=27513, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=723, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=229, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=28509, PETRI_PLACES=352, PETRI_TRANSITIONS=735} [2023-08-31 19:05:01,453 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 278 predicate places. [2023-08-31 19:05:01,453 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 735 transitions, 28509 flow [2023-08-31 19:05:01,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:01,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:01,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:01,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-31 19:05:01,454 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:05:01,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:01,454 INFO L85 PathProgramCache]: Analyzing trace with hash 189939986, now seen corresponding path program 6 times [2023-08-31 19:05:01,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:01,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201699397] [2023-08-31 19:05:01,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:01,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:01,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:01,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201699397] [2023-08-31 19:05:01,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201699397] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:01,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:01,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:01,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724470058] [2023-08-31 19:05:01,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:01,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:01,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:01,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:01,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:02,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:05:02,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 735 transitions, 28509 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:02,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:02,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:05:02,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:05,433 INFO L130 PetriNetUnfolder]: 1845/4855 cut-off events. [2023-08-31 19:05:05,433 INFO L131 PetriNetUnfolder]: For 298840/298854 co-relation queries the response was YES. [2023-08-31 19:05:05,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55187 conditions, 4855 events. 1845/4855 cut-off events. For 298840/298854 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 42731 event pairs, 282 based on Foata normal form. 13/4714 useless extension candidates. Maximal degree in co-relation 55060. Up to 2268 conditions per place. [2023-08-31 19:05:05,494 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 702 selfloop transitions, 267 changer transitions 0/987 dead transitions. [2023-08-31 19:05:05,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 987 transitions, 37484 flow [2023-08-31 19:05:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:05:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:05:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2446 transitions. [2023-08-31 19:05:05,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4179767600820232 [2023-08-31 19:05:05,497 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2446 transitions. [2023-08-31 19:05:05,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2446 transitions. [2023-08-31 19:05:05,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:05,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2446 transitions. [2023-08-31 19:05:05,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 174.71428571428572) internal successors, (2446), 14 states have internal predecessors, (2446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:05,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:05,504 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:05,504 INFO L175 Difference]: Start difference. First operand has 352 places, 735 transitions, 28509 flow. Second operand 14 states and 2446 transitions. [2023-08-31 19:05:05,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 987 transitions, 37484 flow [2023-08-31 19:05:06,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 987 transitions, 36999 flow, removed 46 selfloop flow, removed 6 redundant places. [2023-08-31 19:05:06,873 INFO L231 Difference]: Finished difference. Result has 367 places, 784 transitions, 31649 flow [2023-08-31 19:05:06,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=28088, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=219, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=482, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=31649, PETRI_PLACES=367, PETRI_TRANSITIONS=784} [2023-08-31 19:05:06,874 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 293 predicate places. [2023-08-31 19:05:06,874 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 784 transitions, 31649 flow [2023-08-31 19:05:06,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:06,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:06,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:06,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-31 19:05:06,875 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:05:06,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:06,875 INFO L85 PathProgramCache]: Analyzing trace with hash -615787332, now seen corresponding path program 7 times [2023-08-31 19:05:06,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:06,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293121163] [2023-08-31 19:05:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:06,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:07,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:07,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293121163] [2023-08-31 19:05:07,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293121163] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:07,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:07,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:07,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465915768] [2023-08-31 19:05:07,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:07,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:07,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:07,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:07,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:08,352 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:05:08,353 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 784 transitions, 31649 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:08,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:08,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:05:08,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:11,959 INFO L130 PetriNetUnfolder]: 1861/4943 cut-off events. [2023-08-31 19:05:11,959 INFO L131 PetriNetUnfolder]: For 320189/320206 co-relation queries the response was YES. [2023-08-31 19:05:12,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56584 conditions, 4943 events. 1861/4943 cut-off events. For 320189/320206 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 43988 event pairs, 310 based on Foata normal form. 16/4800 useless extension candidates. Maximal degree in co-relation 56449. Up to 2288 conditions per place. [2023-08-31 19:05:12,018 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 590 selfloop transitions, 290 changer transitions 0/898 dead transitions. [2023-08-31 19:05:12,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 898 transitions, 35532 flow [2023-08-31 19:05:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:05:12,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:05:12,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2435 transitions. [2023-08-31 19:05:12,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41609706083390297 [2023-08-31 19:05:12,021 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2435 transitions. [2023-08-31 19:05:12,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2435 transitions. [2023-08-31 19:05:12,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:12,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2435 transitions. [2023-08-31 19:05:12,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 173.92857142857142) internal successors, (2435), 14 states have internal predecessors, (2435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:12,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:12,028 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:12,028 INFO L175 Difference]: Start difference. First operand has 367 places, 784 transitions, 31649 flow. Second operand 14 states and 2435 transitions. [2023-08-31 19:05:12,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 898 transitions, 35532 flow [2023-08-31 19:05:13,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 898 transitions, 35414 flow, removed 49 selfloop flow, removed 4 redundant places. [2023-08-31 19:05:13,475 INFO L231 Difference]: Finished difference. Result has 381 places, 796 transitions, 32978 flow [2023-08-31 19:05:13,476 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=31535, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=784, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=278, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=32978, PETRI_PLACES=381, PETRI_TRANSITIONS=796} [2023-08-31 19:05:13,476 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 307 predicate places. [2023-08-31 19:05:13,477 INFO L495 AbstractCegarLoop]: Abstraction has has 381 places, 796 transitions, 32978 flow [2023-08-31 19:05:13,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:13,477 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:13,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:13,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-31 19:05:13,478 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:05:13,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:13,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1690728234, now seen corresponding path program 8 times [2023-08-31 19:05:13,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:13,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073968610] [2023-08-31 19:05:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:13,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:13,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:13,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:13,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073968610] [2023-08-31 19:05:13,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073968610] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:13,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:13,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:13,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714466138] [2023-08-31 19:05:13,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:13,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:13,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:14,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 418 [2023-08-31 19:05:14,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 796 transitions, 32978 flow. Second operand has 13 states, 13 states have (on average 162.30769230769232) internal successors, (2110), 13 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:14,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:14,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 418 [2023-08-31 19:05:14,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:17,808 INFO L130 PetriNetUnfolder]: 1869/5101 cut-off events. [2023-08-31 19:05:17,809 INFO L131 PetriNetUnfolder]: For 347957/347960 co-relation queries the response was YES. [2023-08-31 19:05:17,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58376 conditions, 5101 events. 1869/5101 cut-off events. For 347957/347960 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 46176 event pairs, 327 based on Foata normal form. 2/4926 useless extension candidates. Maximal degree in co-relation 58237. Up to 2301 conditions per place. [2023-08-31 19:05:17,884 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 663 selfloop transitions, 280 changer transitions 0/961 dead transitions. [2023-08-31 19:05:17,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 961 transitions, 38385 flow [2023-08-31 19:05:17,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:05:17,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:05:17,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2384 transitions. [2023-08-31 19:05:17,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4073820915926179 [2023-08-31 19:05:17,890 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2384 transitions. [2023-08-31 19:05:17,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2384 transitions. [2023-08-31 19:05:17,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:17,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2384 transitions. [2023-08-31 19:05:17,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 170.28571428571428) internal successors, (2384), 14 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:17,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:17,897 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:17,897 INFO L175 Difference]: Start difference. First operand has 381 places, 796 transitions, 32978 flow. Second operand 14 states and 2384 transitions. [2023-08-31 19:05:17,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 961 transitions, 38385 flow [2023-08-31 19:05:19,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 961 transitions, 38115 flow, removed 27 selfloop flow, removed 8 redundant places. [2023-08-31 19:05:19,810 INFO L231 Difference]: Finished difference. Result has 392 places, 821 transitions, 34639 flow [2023-08-31 19:05:19,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=32716, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=518, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=34639, PETRI_PLACES=392, PETRI_TRANSITIONS=821} [2023-08-31 19:05:19,811 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 318 predicate places. [2023-08-31 19:05:19,811 INFO L495 AbstractCegarLoop]: Abstraction has has 392 places, 821 transitions, 34639 flow [2023-08-31 19:05:19,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 162.30769230769232) internal successors, (2110), 13 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:19,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:19,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:19,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-31 19:05:19,811 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:05:19,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:19,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1358033738, now seen corresponding path program 9 times [2023-08-31 19:05:19,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:19,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499212210] [2023-08-31 19:05:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:19,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:19,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:20,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:20,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499212210] [2023-08-31 19:05:20,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499212210] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:20,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:20,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:20,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18096205] [2023-08-31 19:05:20,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:20,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:20,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:20,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:20,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:21,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:05:21,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 821 transitions, 34639 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:21,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:21,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:05:21,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:24,461 INFO L130 PetriNetUnfolder]: 1875/5169 cut-off events. [2023-08-31 19:05:24,461 INFO L131 PetriNetUnfolder]: For 374495/374498 co-relation queries the response was YES. [2023-08-31 19:05:24,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59721 conditions, 5169 events. 1875/5169 cut-off events. For 374495/374498 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 47189 event pairs, 379 based on Foata normal form. 2/4990 useless extension candidates. Maximal degree in co-relation 59576. Up to 2311 conditions per place. [2023-08-31 19:05:24,535 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 580 selfloop transitions, 294 changer transitions 0/892 dead transitions. [2023-08-31 19:05:24,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 892 transitions, 37575 flow [2023-08-31 19:05:24,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:05:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:05:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2419 transitions. [2023-08-31 19:05:24,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41336295283663704 [2023-08-31 19:05:24,538 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2419 transitions. [2023-08-31 19:05:24,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2419 transitions. [2023-08-31 19:05:24,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:24,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2419 transitions. [2023-08-31 19:05:24,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 172.78571428571428) internal successors, (2419), 14 states have internal predecessors, (2419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:24,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:24,544 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:24,544 INFO L175 Difference]: Start difference. First operand has 392 places, 821 transitions, 34639 flow. Second operand 14 states and 2419 transitions. [2023-08-31 19:05:24,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 892 transitions, 37575 flow [2023-08-31 19:05:26,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 892 transitions, 37271 flow, removed 62 selfloop flow, removed 5 redundant places. [2023-08-31 19:05:26,527 INFO L231 Difference]: Finished difference. Result has 405 places, 839 transitions, 35968 flow [2023-08-31 19:05:26,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=34344, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=821, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=278, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=35968, PETRI_PLACES=405, PETRI_TRANSITIONS=839} [2023-08-31 19:05:26,528 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 331 predicate places. [2023-08-31 19:05:26,528 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 839 transitions, 35968 flow [2023-08-31 19:05:26,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:26,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:26,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:26,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-31 19:05:26,530 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:05:26,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash 960398798, now seen corresponding path program 10 times [2023-08-31 19:05:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:26,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720364365] [2023-08-31 19:05:26,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:26,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:27,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:27,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:27,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720364365] [2023-08-31 19:05:27,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720364365] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:27,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:27,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:27,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499355875] [2023-08-31 19:05:27,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:27,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:27,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:27,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:27,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:28,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:05:28,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 839 transitions, 35968 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:28,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:28,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:05:28,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:31,424 INFO L130 PetriNetUnfolder]: 1879/5227 cut-off events. [2023-08-31 19:05:31,424 INFO L131 PetriNetUnfolder]: For 398436/398439 co-relation queries the response was YES. [2023-08-31 19:05:31,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60815 conditions, 5227 events. 1879/5227 cut-off events. For 398436/398439 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 48083 event pairs, 384 based on Foata normal form. 2/5044 useless extension candidates. Maximal degree in co-relation 60666. Up to 2319 conditions per place. [2023-08-31 19:05:31,491 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 574 selfloop transitions, 312 changer transitions 0/904 dead transitions. [2023-08-31 19:05:31,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 904 transitions, 38751 flow [2023-08-31 19:05:31,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:05:31,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:05:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2418 transitions. [2023-08-31 19:05:31,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41319207108680794 [2023-08-31 19:05:31,495 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2418 transitions. [2023-08-31 19:05:31,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2418 transitions. [2023-08-31 19:05:31,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:31,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2418 transitions. [2023-08-31 19:05:31,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 172.71428571428572) internal successors, (2418), 14 states have internal predecessors, (2418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:31,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:31,501 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:31,502 INFO L175 Difference]: Start difference. First operand has 405 places, 839 transitions, 35968 flow. Second operand 14 states and 2418 transitions. [2023-08-31 19:05:31,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 904 transitions, 38751 flow [2023-08-31 19:05:33,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 904 transitions, 38455 flow, removed 72 selfloop flow, removed 6 redundant places. [2023-08-31 19:05:33,563 INFO L231 Difference]: Finished difference. Result has 417 places, 855 transitions, 37276 flow [2023-08-31 19:05:33,564 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=35676, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=839, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=296, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=37276, PETRI_PLACES=417, PETRI_TRANSITIONS=855} [2023-08-31 19:05:33,564 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 343 predicate places. [2023-08-31 19:05:33,564 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 855 transitions, 37276 flow [2023-08-31 19:05:33,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:33,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:33,565 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:33,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-31 19:05:33,565 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:05:33,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:33,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1251051702, now seen corresponding path program 11 times [2023-08-31 19:05:33,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:33,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455490601] [2023-08-31 19:05:33,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:33,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:33,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:33,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455490601] [2023-08-31 19:05:33,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455490601] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:33,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:33,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:33,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331360827] [2023-08-31 19:05:33,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:33,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:33,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:33,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:33,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:35,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:05:35,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 855 transitions, 37276 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:35,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:35,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:05:35,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:38,343 INFO L130 PetriNetUnfolder]: 1879/5274 cut-off events. [2023-08-31 19:05:38,343 INFO L131 PetriNetUnfolder]: For 419983/419986 co-relation queries the response was YES. [2023-08-31 19:05:38,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61904 conditions, 5274 events. 1879/5274 cut-off events. For 419983/419986 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 48878 event pairs, 381 based on Foata normal form. 2/5087 useless extension candidates. Maximal degree in co-relation 61751. Up to 2323 conditions per place. [2023-08-31 19:05:38,422 INFO L137 encePairwiseOnDemand]: 404/418 looper letters, 564 selfloop transitions, 327 changer transitions 0/909 dead transitions. [2023-08-31 19:05:38,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 909 transitions, 39629 flow [2023-08-31 19:05:38,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:05:38,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:05:38,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2415 transitions. [2023-08-31 19:05:38,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4126794258373206 [2023-08-31 19:05:38,424 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2415 transitions. [2023-08-31 19:05:38,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2415 transitions. [2023-08-31 19:05:38,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:38,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2415 transitions. [2023-08-31 19:05:38,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 172.5) internal successors, (2415), 14 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:38,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:38,428 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:38,428 INFO L175 Difference]: Start difference. First operand has 417 places, 855 transitions, 37276 flow. Second operand 14 states and 2415 transitions. [2023-08-31 19:05:38,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 909 transitions, 39629 flow [2023-08-31 19:05:40,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 909 transitions, 39383 flow, removed 61 selfloop flow, removed 7 redundant places. [2023-08-31 19:05:40,641 INFO L231 Difference]: Finished difference. Result has 427 places, 865 transitions, 38372 flow [2023-08-31 19:05:40,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=37036, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=855, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=317, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38372, PETRI_PLACES=427, PETRI_TRANSITIONS=865} [2023-08-31 19:05:40,642 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 353 predicate places. [2023-08-31 19:05:40,642 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 865 transitions, 38372 flow [2023-08-31 19:05:40,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:40,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:40,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:40,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-31 19:05:40,643 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:05:40,643 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash -434716146, now seen corresponding path program 12 times [2023-08-31 19:05:40,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:40,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426614415] [2023-08-31 19:05:40,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:40,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:41,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:41,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426614415] [2023-08-31 19:05:41,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426614415] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:41,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:41,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:41,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854000745] [2023-08-31 19:05:41,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:41,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:41,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:41,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:41,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:42,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:05:42,242 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 865 transitions, 38372 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:42,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:42,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:05:42,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:46,002 INFO L130 PetriNetUnfolder]: 1897/5289 cut-off events. [2023-08-31 19:05:46,002 INFO L131 PetriNetUnfolder]: For 449859/449878 co-relation queries the response was YES. [2023-08-31 19:05:46,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63595 conditions, 5289 events. 1897/5289 cut-off events. For 449859/449878 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 48980 event pairs, 334 based on Foata normal form. 18/5126 useless extension candidates. Maximal degree in co-relation 63438. Up to 2345 conditions per place. [2023-08-31 19:05:46,101 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 655 selfloop transitions, 308 changer transitions 0/981 dead transitions. [2023-08-31 19:05:46,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 981 transitions, 42772 flow [2023-08-31 19:05:46,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:05:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:05:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2437 transitions. [2023-08-31 19:05:46,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41643882433356116 [2023-08-31 19:05:46,103 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2437 transitions. [2023-08-31 19:05:46,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2437 transitions. [2023-08-31 19:05:46,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:46,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2437 transitions. [2023-08-31 19:05:46,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 174.07142857142858) internal successors, (2437), 14 states have internal predecessors, (2437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:46,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:46,107 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:46,107 INFO L175 Difference]: Start difference. First operand has 427 places, 865 transitions, 38372 flow. Second operand 14 states and 2437 transitions. [2023-08-31 19:05:46,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 981 transitions, 42772 flow [2023-08-31 19:05:48,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 981 transitions, 42349 flow, removed 33 selfloop flow, removed 9 redundant places. [2023-08-31 19:05:48,356 INFO L231 Difference]: Finished difference. Result has 437 places, 883 transitions, 39868 flow [2023-08-31 19:05:48,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=37960, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=865, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=291, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=39868, PETRI_PLACES=437, PETRI_TRANSITIONS=883} [2023-08-31 19:05:48,357 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 363 predicate places. [2023-08-31 19:05:48,357 INFO L495 AbstractCegarLoop]: Abstraction has has 437 places, 883 transitions, 39868 flow [2023-08-31 19:05:48,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:48,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:48,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:48,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-31 19:05:48,358 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:05:48,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:48,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1965876484, now seen corresponding path program 13 times [2023-08-31 19:05:48,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:48,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001445163] [2023-08-31 19:05:48,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:48,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:48,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:48,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001445163] [2023-08-31 19:05:48,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001445163] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:48,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:48,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:48,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321579278] [2023-08-31 19:05:48,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:48,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:48,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:48,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:48,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:49,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:05:49,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 883 transitions, 39868 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:49,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:49,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:05:49,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:05:53,467 INFO L130 PetriNetUnfolder]: 1909/5377 cut-off events. [2023-08-31 19:05:53,468 INFO L131 PetriNetUnfolder]: For 478290/478311 co-relation queries the response was YES. [2023-08-31 19:05:53,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65170 conditions, 5377 events. 1909/5377 cut-off events. For 478290/478311 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 50282 event pairs, 345 based on Foata normal form. 20/5210 useless extension candidates. Maximal degree in co-relation 65007. Up to 2361 conditions per place. [2023-08-31 19:05:53,552 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 670 selfloop transitions, 303 changer transitions 0/991 dead transitions. [2023-08-31 19:05:53,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 991 transitions, 44005 flow [2023-08-31 19:05:53,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:05:53,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:05:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2438 transitions. [2023-08-31 19:05:53,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4166097060833903 [2023-08-31 19:05:53,554 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2438 transitions. [2023-08-31 19:05:53,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2438 transitions. [2023-08-31 19:05:53,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:05:53,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2438 transitions. [2023-08-31 19:05:53,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 174.14285714285714) internal successors, (2438), 14 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:53,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:53,559 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:53,559 INFO L175 Difference]: Start difference. First operand has 437 places, 883 transitions, 39868 flow. Second operand 14 states and 2438 transitions. [2023-08-31 19:05:53,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 991 transitions, 44005 flow [2023-08-31 19:05:56,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 443 places, 991 transitions, 43340 flow, removed 60 selfloop flow, removed 7 redundant places. [2023-08-31 19:05:56,332 INFO L231 Difference]: Finished difference. Result has 449 places, 896 transitions, 40843 flow [2023-08-31 19:05:56,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=39213, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=883, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=290, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=40843, PETRI_PLACES=449, PETRI_TRANSITIONS=896} [2023-08-31 19:05:56,333 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 375 predicate places. [2023-08-31 19:05:56,333 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 896 transitions, 40843 flow [2023-08-31 19:05:56,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:56,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:05:56,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:05:56,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-31 19:05:56,334 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:05:56,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:05:56,335 INFO L85 PathProgramCache]: Analyzing trace with hash -604990340, now seen corresponding path program 14 times [2023-08-31 19:05:56,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:05:56,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797719341] [2023-08-31 19:05:56,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:05:56,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:05:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:05:56,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:05:56,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:05:56,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797719341] [2023-08-31 19:05:56,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797719341] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:05:56,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:05:56,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:05:56,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176708768] [2023-08-31 19:05:56,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:05:56,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:05:56,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:05:56,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:05:56,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:05:57,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:05:57,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 896 transitions, 40843 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:05:57,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:05:57,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:05:57,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:02,290 INFO L130 PetriNetUnfolder]: 1983/5726 cut-off events. [2023-08-31 19:06:02,290 INFO L131 PetriNetUnfolder]: For 536581/536602 co-relation queries the response was YES. [2023-08-31 19:06:02,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68509 conditions, 5726 events. 1983/5726 cut-off events. For 536581/536602 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 55118 event pairs, 372 based on Foata normal form. 15/5531 useless extension candidates. Maximal degree in co-relation 68341. Up to 2461 conditions per place. [2023-08-31 19:06:02,378 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 568 selfloop transitions, 395 changer transitions 0/981 dead transitions. [2023-08-31 19:06:02,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 981 transitions, 45267 flow [2023-08-31 19:06:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 19:06:02,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 19:06:02,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2252 transitions. [2023-08-31 19:06:02,380 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4144276775855723 [2023-08-31 19:06:02,380 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2252 transitions. [2023-08-31 19:06:02,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2252 transitions. [2023-08-31 19:06:02,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:02,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2252 transitions. [2023-08-31 19:06:02,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 173.23076923076923) internal successors, (2252), 13 states have internal predecessors, (2252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:02,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:02,385 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:02,385 INFO L175 Difference]: Start difference. First operand has 449 places, 896 transitions, 40843 flow. Second operand 13 states and 2252 transitions. [2023-08-31 19:06:02,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 981 transitions, 45267 flow [2023-08-31 19:06:04,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 981 transitions, 44947 flow, removed 69 selfloop flow, removed 7 redundant places. [2023-08-31 19:06:04,941 INFO L231 Difference]: Finished difference. Result has 461 places, 926 transitions, 43707 flow [2023-08-31 19:06:04,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=40523, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=367, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=43707, PETRI_PLACES=461, PETRI_TRANSITIONS=926} [2023-08-31 19:06:04,941 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 387 predicate places. [2023-08-31 19:06:04,942 INFO L495 AbstractCegarLoop]: Abstraction has has 461 places, 926 transitions, 43707 flow [2023-08-31 19:06:04,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:04,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:04,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:04,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-31 19:06:04,942 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:06:04,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:04,942 INFO L85 PathProgramCache]: Analyzing trace with hash 403900412, now seen corresponding path program 15 times [2023-08-31 19:06:04,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:04,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366405102] [2023-08-31 19:06:04,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:04,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:05,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:05,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:05,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366405102] [2023-08-31 19:06:05,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366405102] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:05,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:05,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:05,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598766967] [2023-08-31 19:06:05,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:05,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:05,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:05,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:05,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:06,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:06:06,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 926 transitions, 43707 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:06,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:06,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:06:06,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:11,147 INFO L130 PetriNetUnfolder]: 2015/5883 cut-off events. [2023-08-31 19:06:11,147 INFO L131 PetriNetUnfolder]: For 593660/593690 co-relation queries the response was YES. [2023-08-31 19:06:11,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71668 conditions, 5883 events. 2015/5883 cut-off events. For 593660/593690 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 57343 event pairs, 317 based on Foata normal form. 21/5688 useless extension candidates. Maximal degree in co-relation 71493. Up to 2509 conditions per place. [2023-08-31 19:06:11,234 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 577 selfloop transitions, 416 changer transitions 0/1011 dead transitions. [2023-08-31 19:06:11,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 1011 transitions, 47955 flow [2023-08-31 19:06:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:06:11,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:06:11,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2426 transitions. [2023-08-31 19:06:11,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41455912508544085 [2023-08-31 19:06:11,237 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2426 transitions. [2023-08-31 19:06:11,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2426 transitions. [2023-08-31 19:06:11,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:11,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2426 transitions. [2023-08-31 19:06:11,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 173.28571428571428) internal successors, (2426), 14 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:11,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:11,241 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:11,241 INFO L175 Difference]: Start difference. First operand has 461 places, 926 transitions, 43707 flow. Second operand 14 states and 2426 transitions. [2023-08-31 19:06:11,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 1011 transitions, 47955 flow [2023-08-31 19:06:13,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 1011 transitions, 47805 flow, removed 71 selfloop flow, removed 3 redundant places. [2023-08-31 19:06:14,025 INFO L231 Difference]: Finished difference. Result has 479 places, 953 transitions, 46685 flow [2023-08-31 19:06:14,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=43557, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=392, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=515, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=46685, PETRI_PLACES=479, PETRI_TRANSITIONS=953} [2023-08-31 19:06:14,026 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 405 predicate places. [2023-08-31 19:06:14,027 INFO L495 AbstractCegarLoop]: Abstraction has has 479 places, 953 transitions, 46685 flow [2023-08-31 19:06:14,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:14,027 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:14,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:14,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-31 19:06:14,027 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:06:14,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1665119618, now seen corresponding path program 16 times [2023-08-31 19:06:14,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:14,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374879905] [2023-08-31 19:06:14,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:14,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:14,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:14,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374879905] [2023-08-31 19:06:14,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374879905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:14,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:14,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:14,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641185111] [2023-08-31 19:06:14,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:14,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:14,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:14,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:14,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:15,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:06:15,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 953 transitions, 46685 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:15,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:15,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:06:15,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:19,663 INFO L130 PetriNetUnfolder]: 2023/5967 cut-off events. [2023-08-31 19:06:19,663 INFO L131 PetriNetUnfolder]: For 659015/659046 co-relation queries the response was YES. [2023-08-31 19:06:19,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74114 conditions, 5967 events. 2023/5967 cut-off events. For 659015/659046 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 58712 event pairs, 385 based on Foata normal form. 19/5764 useless extension candidates. Maximal degree in co-relation 73931. Up to 2523 conditions per place. [2023-08-31 19:06:19,763 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 569 selfloop transitions, 423 changer transitions 0/1010 dead transitions. [2023-08-31 19:06:19,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1010 transitions, 49830 flow [2023-08-31 19:06:19,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 19:06:19,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 19:06:19,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2254 transitions. [2023-08-31 19:06:19,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41479573058520425 [2023-08-31 19:06:19,765 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2254 transitions. [2023-08-31 19:06:19,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2254 transitions. [2023-08-31 19:06:19,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:19,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2254 transitions. [2023-08-31 19:06:19,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 173.3846153846154) internal successors, (2254), 13 states have internal predecessors, (2254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:19,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:19,771 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:19,771 INFO L175 Difference]: Start difference. First operand has 479 places, 953 transitions, 46685 flow. Second operand 13 states and 2254 transitions. [2023-08-31 19:06:19,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 1010 transitions, 49830 flow [2023-08-31 19:06:23,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 487 places, 1010 transitions, 49589 flow, removed 68 selfloop flow, removed 4 redundant places. [2023-08-31 19:06:23,075 INFO L231 Difference]: Finished difference. Result has 491 places, 963 transitions, 48404 flow [2023-08-31 19:06:23,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=46444, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=953, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=413, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=48404, PETRI_PLACES=491, PETRI_TRANSITIONS=963} [2023-08-31 19:06:23,076 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 417 predicate places. [2023-08-31 19:06:23,076 INFO L495 AbstractCegarLoop]: Abstraction has has 491 places, 963 transitions, 48404 flow [2023-08-31 19:06:23,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:23,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:23,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:23,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-31 19:06:23,077 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:06:23,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:23,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1002283532, now seen corresponding path program 17 times [2023-08-31 19:06:23,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:23,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408556420] [2023-08-31 19:06:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:23,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:23,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:23,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408556420] [2023-08-31 19:06:23,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408556420] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:23,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:23,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:23,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000744082] [2023-08-31 19:06:23,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:23,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:23,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:23,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:23,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:24,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:06:24,409 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 491 places, 963 transitions, 48404 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:24,409 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:24,409 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:06:24,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:28,778 INFO L130 PetriNetUnfolder]: 2023/6014 cut-off events. [2023-08-31 19:06:28,778 INFO L131 PetriNetUnfolder]: For 694021/694052 co-relation queries the response was YES. [2023-08-31 19:06:28,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75738 conditions, 6014 events. 2023/6014 cut-off events. For 694021/694052 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 59462 event pairs, 388 based on Foata normal form. 18/5806 useless extension candidates. Maximal degree in co-relation 75551. Up to 2523 conditions per place. [2023-08-31 19:06:28,888 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 647 selfloop transitions, 407 changer transitions 0/1072 dead transitions. [2023-08-31 19:06:28,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 1072 transitions, 52996 flow [2023-08-31 19:06:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 19:06:28,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 19:06:28,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2250 transitions. [2023-08-31 19:06:28,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41405962458594037 [2023-08-31 19:06:28,890 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2250 transitions. [2023-08-31 19:06:28,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2250 transitions. [2023-08-31 19:06:28,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:28,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2250 transitions. [2023-08-31 19:06:28,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 173.07692307692307) internal successors, (2250), 13 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:28,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:28,894 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:28,894 INFO L175 Difference]: Start difference. First operand has 491 places, 963 transitions, 48404 flow. Second operand 13 states and 2250 transitions. [2023-08-31 19:06:28,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 1072 transitions, 52996 flow [2023-08-31 19:06:32,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 1072 transitions, 52718 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-08-31 19:06:32,590 INFO L231 Difference]: Finished difference. Result has 501 places, 999 transitions, 50514 flow [2023-08-31 19:06:32,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=48154, PETRI_DIFFERENCE_MINUEND_PLACES=484, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=371, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=50514, PETRI_PLACES=501, PETRI_TRANSITIONS=999} [2023-08-31 19:06:32,590 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 427 predicate places. [2023-08-31 19:06:32,591 INFO L495 AbstractCegarLoop]: Abstraction has has 501 places, 999 transitions, 50514 flow [2023-08-31 19:06:32,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:32,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:32,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:32,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-31 19:06:32,591 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:06:32,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:32,592 INFO L85 PathProgramCache]: Analyzing trace with hash 562112592, now seen corresponding path program 18 times [2023-08-31 19:06:32,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:32,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668308319] [2023-08-31 19:06:32,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:32,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:33,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:33,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:33,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668308319] [2023-08-31 19:06:33,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668308319] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:33,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:33,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:33,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501575722] [2023-08-31 19:06:33,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:33,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:33,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:33,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:33,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:34,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:06:34,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 501 places, 999 transitions, 50514 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:34,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:34,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:06:34,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:39,116 INFO L130 PetriNetUnfolder]: 2043/6126 cut-off events. [2023-08-31 19:06:39,117 INFO L131 PetriNetUnfolder]: For 733952/733990 co-relation queries the response was YES. [2023-08-31 19:06:39,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78200 conditions, 6126 events. 2043/6126 cut-off events. For 733952/733990 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 61223 event pairs, 312 based on Foata normal form. 25/5920 useless extension candidates. Maximal degree in co-relation 78008. Up to 2553 conditions per place. [2023-08-31 19:06:39,213 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 591 selfloop transitions, 456 changer transitions 0/1065 dead transitions. [2023-08-31 19:06:39,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 1065 transitions, 54106 flow [2023-08-31 19:06:39,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:06:39,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:06:39,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2422 transitions. [2023-08-31 19:06:39,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4138755980861244 [2023-08-31 19:06:39,215 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2422 transitions. [2023-08-31 19:06:39,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2422 transitions. [2023-08-31 19:06:39,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:39,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2422 transitions. [2023-08-31 19:06:39,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 173.0) internal successors, (2422), 14 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:39,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:39,220 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:39,220 INFO L175 Difference]: Start difference. First operand has 501 places, 999 transitions, 50514 flow. Second operand 14 states and 2422 transitions. [2023-08-31 19:06:39,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 1065 transitions, 54106 flow [2023-08-31 19:06:42,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 1065 transitions, 53836 flow, removed 85 selfloop flow, removed 4 redundant places. [2023-08-31 19:06:42,732 INFO L231 Difference]: Finished difference. Result has 517 places, 1016 transitions, 52898 flow [2023-08-31 19:06:42,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=50244, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=999, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=439, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=52898, PETRI_PLACES=517, PETRI_TRANSITIONS=1016} [2023-08-31 19:06:42,733 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 443 predicate places. [2023-08-31 19:06:42,733 INFO L495 AbstractCegarLoop]: Abstraction has has 517 places, 1016 transitions, 52898 flow [2023-08-31 19:06:42,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:42,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:42,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:42,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-31 19:06:42,733 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:06:42,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:42,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1359168396, now seen corresponding path program 19 times [2023-08-31 19:06:42,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:42,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006766987] [2023-08-31 19:06:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:42,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:43,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:43,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:43,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006766987] [2023-08-31 19:06:43,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006766987] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:43,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:43,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:43,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255864256] [2023-08-31 19:06:43,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:43,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:43,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:43,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:43,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:44,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:06:44,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 517 places, 1016 transitions, 52898 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:44,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:44,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:06:44,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:06:49,530 INFO L130 PetriNetUnfolder]: 2043/6161 cut-off events. [2023-08-31 19:06:49,530 INFO L131 PetriNetUnfolder]: For 783563/783603 co-relation queries the response was YES. [2023-08-31 19:06:49,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80274 conditions, 6161 events. 2043/6161 cut-off events. For 783563/783603 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 61796 event pairs, 399 based on Foata normal form. 22/5950 useless extension candidates. Maximal degree in co-relation 80075. Up to 2557 conditions per place. [2023-08-31 19:06:49,638 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 599 selfloop transitions, 460 changer transitions 0/1077 dead transitions. [2023-08-31 19:06:49,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 1077 transitions, 56025 flow [2023-08-31 19:06:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:06:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:06:49,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2423 transitions. [2023-08-31 19:06:49,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4140464798359535 [2023-08-31 19:06:49,640 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2423 transitions. [2023-08-31 19:06:49,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2423 transitions. [2023-08-31 19:06:49,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:06:49,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2423 transitions. [2023-08-31 19:06:49,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 173.07142857142858) internal successors, (2423), 14 states have internal predecessors, (2423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:49,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:49,646 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:49,647 INFO L175 Difference]: Start difference. First operand has 517 places, 1016 transitions, 52898 flow. Second operand 14 states and 2423 transitions. [2023-08-31 19:06:49,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 1077 transitions, 56025 flow [2023-08-31 19:06:53,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 1077 transitions, 55534 flow, removed 42 selfloop flow, removed 6 redundant places. [2023-08-31 19:06:53,476 INFO L231 Difference]: Finished difference. Result has 528 places, 1027 transitions, 54094 flow [2023-08-31 19:06:53,477 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=52409, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1016, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=449, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=54094, PETRI_PLACES=528, PETRI_TRANSITIONS=1027} [2023-08-31 19:06:53,477 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 454 predicate places. [2023-08-31 19:06:53,477 INFO L495 AbstractCegarLoop]: Abstraction has has 528 places, 1027 transitions, 54094 flow [2023-08-31 19:06:53,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:53,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:06:53,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:06:53,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-31 19:06:53,478 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:06:53,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:06:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash 528812416, now seen corresponding path program 20 times [2023-08-31 19:06:53,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:06:53,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432127167] [2023-08-31 19:06:53,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:06:53,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:06:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:06:53,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:06:53,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:06:53,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432127167] [2023-08-31 19:06:53,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432127167] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:06:53,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:06:53,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:06:53,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474282730] [2023-08-31 19:06:53,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:06:53,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:06:53,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:06:53,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:06:53,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:06:55,034 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:06:55,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 528 places, 1027 transitions, 54094 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:06:55,035 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:06:55,035 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:06:55,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:07:00,676 INFO L130 PetriNetUnfolder]: 2043/6223 cut-off events. [2023-08-31 19:07:00,676 INFO L131 PetriNetUnfolder]: For 809897/809935 co-relation queries the response was YES. [2023-08-31 19:07:00,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81655 conditions, 6223 events. 2043/6223 cut-off events. For 809897/809935 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 62873 event pairs, 317 based on Foata normal form. 25/6009 useless extension candidates. Maximal degree in co-relation 81452. Up to 2557 conditions per place. [2023-08-31 19:07:00,789 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 634 selfloop transitions, 459 changer transitions 0/1111 dead transitions. [2023-08-31 19:07:00,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 1111 transitions, 58243 flow [2023-08-31 19:07:00,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:07:00,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:07:00,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2423 transitions. [2023-08-31 19:07:00,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4140464798359535 [2023-08-31 19:07:00,791 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2423 transitions. [2023-08-31 19:07:00,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2423 transitions. [2023-08-31 19:07:00,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:07:00,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2423 transitions. [2023-08-31 19:07:00,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 173.07142857142858) internal successors, (2423), 14 states have internal predecessors, (2423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:00,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:00,796 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:00,796 INFO L175 Difference]: Start difference. First operand has 528 places, 1027 transitions, 54094 flow. Second operand 14 states and 2423 transitions. [2023-08-31 19:07:00,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 1111 transitions, 58243 flow [2023-08-31 19:07:05,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 1111 transitions, 57813 flow, removed 46 selfloop flow, removed 8 redundant places. [2023-08-31 19:07:05,313 INFO L231 Difference]: Finished difference. Result has 537 places, 1054 transitions, 56039 flow [2023-08-31 19:07:05,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=53678, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1027, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=433, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=56039, PETRI_PLACES=537, PETRI_TRANSITIONS=1054} [2023-08-31 19:07:05,315 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 463 predicate places. [2023-08-31 19:07:05,315 INFO L495 AbstractCegarLoop]: Abstraction has has 537 places, 1054 transitions, 56039 flow [2023-08-31 19:07:05,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:05,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:07:05,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:07:05,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-31 19:07:05,316 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:07:05,316 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:07:05,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1574408698, now seen corresponding path program 21 times [2023-08-31 19:07:05,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:07:05,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607593489] [2023-08-31 19:07:05,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:07:05,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:07:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:07:05,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:07:05,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:07:05,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607593489] [2023-08-31 19:07:05,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607593489] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:07:05,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:07:05,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:07:05,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327533271] [2023-08-31 19:07:05,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:07:05,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:07:05,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:07:05,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:07:05,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:07:07,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:07:07,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 1054 transitions, 56039 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:07,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:07:07,026 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:07:07,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:07:12,046 INFO L130 PetriNetUnfolder]: 2053/6289 cut-off events. [2023-08-31 19:07:12,046 INFO L131 PetriNetUnfolder]: For 841032/841076 co-relation queries the response was YES. [2023-08-31 19:07:12,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83624 conditions, 6289 events. 2053/6289 cut-off events. For 841032/841076 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 63984 event pairs, 352 based on Foata normal form. 27/6075 useless extension candidates. Maximal degree in co-relation 83417. Up to 2569 conditions per place. [2023-08-31 19:07:12,162 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 651 selfloop transitions, 458 changer transitions 0/1127 dead transitions. [2023-08-31 19:07:12,162 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 1127 transitions, 60002 flow [2023-08-31 19:07:12,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:07:12,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:07:12,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2423 transitions. [2023-08-31 19:07:12,164 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4140464798359535 [2023-08-31 19:07:12,164 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2423 transitions. [2023-08-31 19:07:12,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2423 transitions. [2023-08-31 19:07:12,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:07:12,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2423 transitions. [2023-08-31 19:07:12,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 173.07142857142858) internal successors, (2423), 14 states have internal predecessors, (2423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:12,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:12,169 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:12,169 INFO L175 Difference]: Start difference. First operand has 537 places, 1054 transitions, 56039 flow. Second operand 14 states and 2423 transitions. [2023-08-31 19:07:12,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 1127 transitions, 60002 flow [2023-08-31 19:07:16,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 1127 transitions, 59675 flow, removed 71 selfloop flow, removed 6 redundant places. [2023-08-31 19:07:16,364 INFO L231 Difference]: Finished difference. Result has 548 places, 1066 transitions, 57563 flow [2023-08-31 19:07:16,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=55712, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=446, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=598, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=57563, PETRI_PLACES=548, PETRI_TRANSITIONS=1066} [2023-08-31 19:07:16,365 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 474 predicate places. [2023-08-31 19:07:16,365 INFO L495 AbstractCegarLoop]: Abstraction has has 548 places, 1066 transitions, 57563 flow [2023-08-31 19:07:16,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:16,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:07:16,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:07:16,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-31 19:07:16,365 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:07:16,366 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:07:16,366 INFO L85 PathProgramCache]: Analyzing trace with hash -896368826, now seen corresponding path program 22 times [2023-08-31 19:07:16,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:07:16,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278065216] [2023-08-31 19:07:16,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:07:16,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:07:16,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:07:16,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:07:16,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:07:16,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278065216] [2023-08-31 19:07:16,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278065216] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:07:16,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:07:16,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:07:16,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173397686] [2023-08-31 19:07:16,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:07:16,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:07:16,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:07:16,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:07:16,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:07:17,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:07:17,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 1066 transitions, 57563 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:17,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:07:17,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:07:17,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:07:22,472 INFO L130 PetriNetUnfolder]: 2053/6422 cut-off events. [2023-08-31 19:07:22,472 INFO L131 PetriNetUnfolder]: For 851553/851582 co-relation queries the response was YES. [2023-08-31 19:07:22,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84941 conditions, 6422 events. 2053/6422 cut-off events. For 851553/851582 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 66213 event pairs, 364 based on Foata normal form. 22/6184 useless extension candidates. Maximal degree in co-relation 84730. Up to 2569 conditions per place. [2023-08-31 19:07:22,595 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 668 selfloop transitions, 439 changer transitions 0/1125 dead transitions. [2023-08-31 19:07:22,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 560 places, 1125 transitions, 60811 flow [2023-08-31 19:07:22,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 19:07:22,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 19:07:22,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2250 transitions. [2023-08-31 19:07:22,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41405962458594037 [2023-08-31 19:07:22,597 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2250 transitions. [2023-08-31 19:07:22,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2250 transitions. [2023-08-31 19:07:22,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:07:22,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2250 transitions. [2023-08-31 19:07:22,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 173.07692307692307) internal successors, (2250), 13 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:22,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:22,602 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:22,602 INFO L175 Difference]: Start difference. First operand has 548 places, 1066 transitions, 57563 flow. Second operand 13 states and 2250 transitions. [2023-08-31 19:07:22,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 560 places, 1125 transitions, 60811 flow [2023-08-31 19:07:27,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 1125 transitions, 60365 flow, removed 81 selfloop flow, removed 5 redundant places. [2023-08-31 19:07:27,171 INFO L231 Difference]: Finished difference. Result has 559 places, 1082 transitions, 58928 flow [2023-08-31 19:07:27,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=57119, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=423, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=628, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=58928, PETRI_PLACES=559, PETRI_TRANSITIONS=1082} [2023-08-31 19:07:27,172 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 485 predicate places. [2023-08-31 19:07:27,173 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 1082 transitions, 58928 flow [2023-08-31 19:07:27,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:27,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:07:27,173 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:07:27,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-31 19:07:27,174 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:07:27,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:07:27,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1131981032, now seen corresponding path program 23 times [2023-08-31 19:07:27,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:07:27,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871788572] [2023-08-31 19:07:27,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:07:27,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:07:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:07:27,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:07:27,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:07:27,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871788572] [2023-08-31 19:07:27,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871788572] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:07:27,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:07:27,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:07:27,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146569902] [2023-08-31 19:07:27,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:07:27,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:07:27,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:07:27,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:07:27,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:07:28,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:07:28,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 1082 transitions, 58928 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:28,804 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:07:28,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:07:28,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:07:34,252 INFO L130 PetriNetUnfolder]: 2164/6765 cut-off events. [2023-08-31 19:07:34,252 INFO L131 PetriNetUnfolder]: For 991197/991245 co-relation queries the response was YES. [2023-08-31 19:07:34,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92885 conditions, 6765 events. 2164/6765 cut-off events. For 991197/991245 co-relation queries the response was YES. Maximal size of possible extension queue 354. Compared 70840 event pairs, 344 based on Foata normal form. 34/6534 useless extension candidates. Maximal degree in co-relation 92670. Up to 2746 conditions per place. [2023-08-31 19:07:34,378 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 653 selfloop transitions, 535 changer transitions 0/1206 dead transitions. [2023-08-31 19:07:34,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 1206 transitions, 68279 flow [2023-08-31 19:07:34,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-31 19:07:34,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-31 19:07:34,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2082 transitions. [2023-08-31 19:07:34,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150717703349282 [2023-08-31 19:07:34,379 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2082 transitions. [2023-08-31 19:07:34,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2082 transitions. [2023-08-31 19:07:34,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:07:34,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2082 transitions. [2023-08-31 19:07:34,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 173.5) internal successors, (2082), 12 states have internal predecessors, (2082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:34,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 418.0) internal successors, (5434), 13 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:34,384 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 418.0) internal successors, (5434), 13 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:34,384 INFO L175 Difference]: Start difference. First operand has 559 places, 1082 transitions, 58928 flow. Second operand 12 states and 2082 transitions. [2023-08-31 19:07:34,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 1206 transitions, 68279 flow [2023-08-31 19:07:39,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1206 transitions, 67918 flow, removed 104 selfloop flow, removed 7 redundant places. [2023-08-31 19:07:39,712 INFO L231 Difference]: Finished difference. Result has 568 places, 1143 transitions, 65336 flow [2023-08-31 19:07:39,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=58577, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1082, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=475, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=65336, PETRI_PLACES=568, PETRI_TRANSITIONS=1143} [2023-08-31 19:07:39,713 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 494 predicate places. [2023-08-31 19:07:39,713 INFO L495 AbstractCegarLoop]: Abstraction has has 568 places, 1143 transitions, 65336 flow [2023-08-31 19:07:39,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:39,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:07:39,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:07:39,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-31 19:07:39,714 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:07:39,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:07:39,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1714720076, now seen corresponding path program 24 times [2023-08-31 19:07:39,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:07:39,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664466516] [2023-08-31 19:07:39,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:07:39,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:07:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:07:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:07:40,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:07:40,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664466516] [2023-08-31 19:07:40,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664466516] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:07:40,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:07:40,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:07:40,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427011604] [2023-08-31 19:07:40,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:07:40,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:07:40,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:07:40,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:07:40,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:07:41,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:07:41,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 1143 transitions, 65336 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:41,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:07:41,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:07:41,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:07:47,721 INFO L130 PetriNetUnfolder]: 2200/6975 cut-off events. [2023-08-31 19:07:47,722 INFO L131 PetriNetUnfolder]: For 1055110/1055158 co-relation queries the response was YES. [2023-08-31 19:07:47,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96857 conditions, 6975 events. 2200/6975 cut-off events. For 1055110/1055158 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 74040 event pairs, 360 based on Foata normal form. 31/6725 useless extension candidates. Maximal degree in co-relation 96640. Up to 2792 conditions per place. [2023-08-31 19:07:47,845 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 665 selfloop transitions, 533 changer transitions 0/1216 dead transitions. [2023-08-31 19:07:47,845 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 1216 transitions, 70223 flow [2023-08-31 19:07:47,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:07:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:07:47,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2421 transitions. [2023-08-31 19:07:47,847 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4137047163362953 [2023-08-31 19:07:47,847 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2421 transitions. [2023-08-31 19:07:47,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2421 transitions. [2023-08-31 19:07:47,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:07:47,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2421 transitions. [2023-08-31 19:07:47,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 172.92857142857142) internal successors, (2421), 14 states have internal predecessors, (2421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:47,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:47,853 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:47,853 INFO L175 Difference]: Start difference. First operand has 568 places, 1143 transitions, 65336 flow. Second operand 14 states and 2421 transitions. [2023-08-31 19:07:47,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 1216 transitions, 70223 flow [2023-08-31 19:07:53,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 1216 transitions, 69531 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-08-31 19:07:53,387 INFO L231 Difference]: Finished difference. Result has 580 places, 1163 transitions, 67989 flow [2023-08-31 19:07:53,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=64659, PETRI_DIFFERENCE_MINUEND_PLACES=561, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=513, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=614, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=67989, PETRI_PLACES=580, PETRI_TRANSITIONS=1163} [2023-08-31 19:07:53,388 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 506 predicate places. [2023-08-31 19:07:53,388 INFO L495 AbstractCegarLoop]: Abstraction has has 580 places, 1163 transitions, 67989 flow [2023-08-31 19:07:53,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:53,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:07:53,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:07:53,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-31 19:07:53,389 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:07:53,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:07:53,390 INFO L85 PathProgramCache]: Analyzing trace with hash -682828638, now seen corresponding path program 25 times [2023-08-31 19:07:53,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:07:53,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464196151] [2023-08-31 19:07:53,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:07:53,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:07:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:07:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:07:53,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:07:53,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464196151] [2023-08-31 19:07:53,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464196151] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:07:53,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:07:53,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:07:53,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250509237] [2023-08-31 19:07:53,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:07:53,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:07:53,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:07:53,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:07:53,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:07:54,812 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:07:54,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 1163 transitions, 67989 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:07:54,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:07:54,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:07:54,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:08:01,214 INFO L130 PetriNetUnfolder]: 2200/6968 cut-off events. [2023-08-31 19:08:01,215 INFO L131 PetriNetUnfolder]: For 1098918/1098975 co-relation queries the response was YES. [2023-08-31 19:08:01,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98138 conditions, 6968 events. 2200/6968 cut-off events. For 1098918/1098975 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 73957 event pairs, 384 based on Foata normal form. 33/6725 useless extension candidates. Maximal degree in co-relation 97915. Up to 2796 conditions per place. [2023-08-31 19:08:01,331 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 675 selfloop transitions, 531 changer transitions 0/1224 dead transitions. [2023-08-31 19:08:01,331 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 593 places, 1224 transitions, 71635 flow [2023-08-31 19:08:01,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:08:01,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:08:01,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2422 transitions. [2023-08-31 19:08:01,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4138755980861244 [2023-08-31 19:08:01,333 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2422 transitions. [2023-08-31 19:08:01,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2422 transitions. [2023-08-31 19:08:01,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:08:01,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2422 transitions. [2023-08-31 19:08:01,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 173.0) internal successors, (2422), 14 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:01,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:01,337 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:01,337 INFO L175 Difference]: Start difference. First operand has 580 places, 1163 transitions, 67989 flow. Second operand 14 states and 2422 transitions. [2023-08-31 19:08:01,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 593 places, 1224 transitions, 71635 flow [2023-08-31 19:08:07,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 1224 transitions, 71326 flow, removed 51 selfloop flow, removed 6 redundant places. [2023-08-31 19:08:07,097 INFO L231 Difference]: Finished difference. Result has 592 places, 1174 transitions, 70072 flow [2023-08-31 19:08:07,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=67680, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=520, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=70072, PETRI_PLACES=592, PETRI_TRANSITIONS=1174} [2023-08-31 19:08:07,098 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 518 predicate places. [2023-08-31 19:08:07,098 INFO L495 AbstractCegarLoop]: Abstraction has has 592 places, 1174 transitions, 70072 flow [2023-08-31 19:08:07,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:07,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:08:07,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:08:07,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-31 19:08:07,099 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:08:07,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:08:07,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1366993612, now seen corresponding path program 26 times [2023-08-31 19:08:07,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:08:07,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368504416] [2023-08-31 19:08:07,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:08:07,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:08:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:08:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:08:07,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:08:07,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368504416] [2023-08-31 19:08:07,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368504416] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:08:07,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:08:07,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:08:07,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373930072] [2023-08-31 19:08:07,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:08:07,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:08:07,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:08:07,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:08:07,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:08:08,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:08:08,728 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 592 places, 1174 transitions, 70072 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:08,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:08:08,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:08:08,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:08:15,242 INFO L130 PetriNetUnfolder]: 2200/7095 cut-off events. [2023-08-31 19:08:15,243 INFO L131 PetriNetUnfolder]: For 1162740/1162789 co-relation queries the response was YES. [2023-08-31 19:08:15,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99998 conditions, 7095 events. 2200/7095 cut-off events. For 1162740/1162789 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 76259 event pairs, 345 based on Foata normal form. 32/6835 useless extension candidates. Maximal degree in co-relation 99770. Up to 2798 conditions per place. [2023-08-31 19:08:15,377 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 684 selfloop transitions, 542 changer transitions 0/1244 dead transitions. [2023-08-31 19:08:15,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 1244 transitions, 74585 flow [2023-08-31 19:08:15,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-31 19:08:15,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-31 19:08:15,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2421 transitions. [2023-08-31 19:08:15,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4137047163362953 [2023-08-31 19:08:15,380 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2421 transitions. [2023-08-31 19:08:15,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2421 transitions. [2023-08-31 19:08:15,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:08:15,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2421 transitions. [2023-08-31 19:08:15,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 172.92857142857142) internal successors, (2421), 14 states have internal predecessors, (2421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:15,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:15,386 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 418.0) internal successors, (6270), 15 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:15,387 INFO L175 Difference]: Start difference. First operand has 592 places, 1174 transitions, 70072 flow. Second operand 14 states and 2421 transitions. [2023-08-31 19:08:15,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 1244 transitions, 74585 flow [2023-08-31 19:08:21,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 1244 transitions, 74314 flow, removed 48 selfloop flow, removed 5 redundant places. [2023-08-31 19:08:21,566 INFO L231 Difference]: Finished difference. Result has 603 places, 1185 transitions, 71721 flow [2023-08-31 19:08:21,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=69801, PETRI_DIFFERENCE_MINUEND_PLACES=587, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=531, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=71721, PETRI_PLACES=603, PETRI_TRANSITIONS=1185} [2023-08-31 19:08:21,567 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 529 predicate places. [2023-08-31 19:08:21,567 INFO L495 AbstractCegarLoop]: Abstraction has has 603 places, 1185 transitions, 71721 flow [2023-08-31 19:08:21,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:21,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:08:21,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:08:21,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-08-31 19:08:21,568 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:08:21,568 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:08:21,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1993278074, now seen corresponding path program 27 times [2023-08-31 19:08:21,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:08:21,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803660535] [2023-08-31 19:08:21,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:08:21,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:08:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:08:22,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:08:22,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:08:22,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803660535] [2023-08-31 19:08:22,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803660535] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:08:22,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:08:22,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-31 19:08:22,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377728003] [2023-08-31 19:08:22,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:08:22,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-31 19:08:22,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:08:22,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-31 19:08:22,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-08-31 19:08:23,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 418 [2023-08-31 19:08:23,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 603 places, 1185 transitions, 71721 flow. Second operand has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:23,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:08:23,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 418 [2023-08-31 19:08:23,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:08:29,653 INFO L130 PetriNetUnfolder]: 2212/7262 cut-off events. [2023-08-31 19:08:29,654 INFO L131 PetriNetUnfolder]: For 1176504/1176541 co-relation queries the response was YES. [2023-08-31 19:08:29,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101982 conditions, 7262 events. 2212/7262 cut-off events. For 1176504/1176541 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 79102 event pairs, 357 based on Foata normal form. 25/6975 useless extension candidates. Maximal degree in co-relation 101751. Up to 2814 conditions per place. [2023-08-31 19:08:29,782 INFO L137 encePairwiseOnDemand]: 403/418 looper letters, 687 selfloop transitions, 530 changer transitions 0/1235 dead transitions. [2023-08-31 19:08:29,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 1235 transitions, 75005 flow [2023-08-31 19:08:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-31 19:08:29,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-31 19:08:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2248 transitions. [2023-08-31 19:08:29,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4136915715863084 [2023-08-31 19:08:29,784 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2248 transitions. [2023-08-31 19:08:29,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2248 transitions. [2023-08-31 19:08:29,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:08:29,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2248 transitions. [2023-08-31 19:08:29,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 172.92307692307693) internal successors, (2248), 13 states have internal predecessors, (2248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:29,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:29,789 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 418.0) internal successors, (5852), 14 states have internal predecessors, (5852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:29,789 INFO L175 Difference]: Start difference. First operand has 603 places, 1185 transitions, 71721 flow. Second operand 13 states and 2248 transitions. [2023-08-31 19:08:29,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 1235 transitions, 75005 flow [2023-08-31 19:08:36,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 1235 transitions, 74248 flow, removed 52 selfloop flow, removed 8 redundant places. [2023-08-31 19:08:36,073 INFO L231 Difference]: Finished difference. Result has 609 places, 1192 transitions, 72617 flow [2023-08-31 19:08:36,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=70874, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=522, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=655, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=72617, PETRI_PLACES=609, PETRI_TRANSITIONS=1192} [2023-08-31 19:08:36,074 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 535 predicate places. [2023-08-31 19:08:36,074 INFO L495 AbstractCegarLoop]: Abstraction has has 609 places, 1192 transitions, 72617 flow [2023-08-31 19:08:36,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 165.30769230769232) internal successors, (2149), 13 states have internal predecessors, (2149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:36,074 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:08:36,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:08:36,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-08-31 19:08:36,075 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:08:36,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:08:36,075 INFO L85 PathProgramCache]: Analyzing trace with hash 704106975, now seen corresponding path program 1 times [2023-08-31 19:08:36,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:08:36,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687788491] [2023-08-31 19:08:36,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:08:36,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:08:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:08:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:08:36,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:08:36,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687788491] [2023-08-31 19:08:36,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687788491] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:08:36,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:08:36,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:08:36,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228563477] [2023-08-31 19:08:36,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:08:36,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:08:36,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:08:36,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:08:36,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:08:36,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 418 [2023-08-31 19:08:36,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 1192 transitions, 72617 flow. Second operand has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:36,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:08:36,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 418 [2023-08-31 19:08:36,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:08:40,546 INFO L130 PetriNetUnfolder]: 1681/6492 cut-off events. [2023-08-31 19:08:40,546 INFO L131 PetriNetUnfolder]: For 1105405/1106924 co-relation queries the response was YES. [2023-08-31 19:08:40,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90718 conditions, 6492 events. 1681/6492 cut-off events. For 1105405/1106924 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 75726 event pairs, 858 based on Foata normal form. 65/6104 useless extension candidates. Maximal degree in co-relation 90486. Up to 3773 conditions per place. [2023-08-31 19:08:40,672 INFO L137 encePairwiseOnDemand]: 413/418 looper letters, 800 selfloop transitions, 4 changer transitions 0/1191 dead transitions. [2023-08-31 19:08:40,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 1191 transitions, 74223 flow [2023-08-31 19:08:40,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:08:40,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:08:40,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1024 transitions. [2023-08-31 19:08:40,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4082934609250399 [2023-08-31 19:08:40,674 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1024 transitions. [2023-08-31 19:08:40,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1024 transitions. [2023-08-31 19:08:40,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:08:40,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1024 transitions. [2023-08-31 19:08:40,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.66666666666666) internal successors, (1024), 6 states have internal predecessors, (1024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:40,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:40,677 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:40,677 INFO L175 Difference]: Start difference. First operand has 609 places, 1192 transitions, 72617 flow. Second operand 6 states and 1024 transitions. [2023-08-31 19:08:40,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 1191 transitions, 74223 flow [2023-08-31 19:08:45,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 1191 transitions, 73701 flow, removed 52 selfloop flow, removed 17 redundant places. [2023-08-31 19:08:45,075 INFO L231 Difference]: Finished difference. Result has 596 places, 1191 transitions, 72101 flow [2023-08-31 19:08:45,076 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=72093, PETRI_DIFFERENCE_MINUEND_PLACES=591, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=72101, PETRI_PLACES=596, PETRI_TRANSITIONS=1191} [2023-08-31 19:08:45,076 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 522 predicate places. [2023-08-31 19:08:45,076 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 1191 transitions, 72101 flow [2023-08-31 19:08:45,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:45,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:08:45,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:08:45,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-08-31 19:08:45,076 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:08:45,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:08:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1087217134, now seen corresponding path program 1 times [2023-08-31 19:08:45,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:08:45,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958397060] [2023-08-31 19:08:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:08:45,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:08:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:08:45,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:08:45,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:08:45,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958397060] [2023-08-31 19:08:45,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958397060] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:08:45,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:08:45,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:08:45,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480301431] [2023-08-31 19:08:45,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:08:45,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:08:45,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:08:45,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:08:45,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:08:45,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 418 [2023-08-31 19:08:45,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 1191 transitions, 72101 flow. Second operand has 6 states, 6 states have (on average 172.83333333333334) internal successors, (1037), 6 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) [2023-08-31 19:08:45,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:08:45,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 418 [2023-08-31 19:08:45,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:08:52,934 INFO L130 PetriNetUnfolder]: 2772/8120 cut-off events. [2023-08-31 19:08:52,934 INFO L131 PetriNetUnfolder]: For 1570461/1571960 co-relation queries the response was YES. [2023-08-31 19:08:53,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120179 conditions, 8120 events. 2772/8120 cut-off events. For 1570461/1571960 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 86635 event pairs, 881 based on Foata normal form. 65/7946 useless extension candidates. Maximal degree in co-relation 119958. Up to 4894 conditions per place. [2023-08-31 19:08:53,098 INFO L137 encePairwiseOnDemand]: 409/418 looper letters, 735 selfloop transitions, 546 changer transitions 0/1664 dead transitions. [2023-08-31 19:08:53,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 1664 transitions, 109792 flow [2023-08-31 19:08:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:08:53,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:08:53,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1076 transitions. [2023-08-31 19:08:53,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42902711323763953 [2023-08-31 19:08:53,101 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1076 transitions. [2023-08-31 19:08:53,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1076 transitions. [2023-08-31 19:08:53,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:08:53,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1076 transitions. [2023-08-31 19:08:53,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 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) [2023-08-31 19:08:53,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:53,104 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:08:53,104 INFO L175 Difference]: Start difference. First operand has 596 places, 1191 transitions, 72101 flow. Second operand 6 states and 1076 transitions. [2023-08-31 19:08:53,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 1664 transitions, 109792 flow [2023-08-31 19:08:58,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 1664 transitions, 109785 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 19:08:58,474 INFO L231 Difference]: Finished difference. Result has 602 places, 1659 transitions, 109750 flow [2023-08-31 19:08:58,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=72094, PETRI_DIFFERENCE_MINUEND_PLACES=592, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=174, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=109750, PETRI_PLACES=602, PETRI_TRANSITIONS=1659} [2023-08-31 19:08:58,475 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 528 predicate places. [2023-08-31 19:08:58,475 INFO L495 AbstractCegarLoop]: Abstraction has has 602 places, 1659 transitions, 109750 flow [2023-08-31 19:08:58,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.83333333333334) internal successors, (1037), 6 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) [2023-08-31 19:08:58,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:08:58,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:08:58,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-08-31 19:08:58,475 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:08:58,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:08:58,476 INFO L85 PathProgramCache]: Analyzing trace with hash -655999287, now seen corresponding path program 1 times [2023-08-31 19:08:58,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:08:58,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438956118] [2023-08-31 19:08:58,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:08:58,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:08:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:09:00,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:09:00,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:09:00,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438956118] [2023-08-31 19:09:00,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438956118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:09:00,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:09:00,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-31 19:09:00,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730168820] [2023-08-31 19:09:00,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:09:00,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-31 19:09:00,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:09:00,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-31 19:09:00,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-31 19:09:00,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 418 [2023-08-31 19:09:00,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 602 places, 1659 transitions, 109750 flow. Second operand has 9 states, 9 states have (on average 170.0) internal successors, (1530), 9 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:00,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:09:00,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 418 [2023-08-31 19:09:00,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:09:09,765 INFO L130 PetriNetUnfolder]: 2746/8068 cut-off events. [2023-08-31 19:09:09,765 INFO L131 PetriNetUnfolder]: For 1614310/1615809 co-relation queries the response was YES. [2023-08-31 19:09:09,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125539 conditions, 8068 events. 2746/8068 cut-off events. For 1614310/1615809 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 85986 event pairs, 823 based on Foata normal form. 91/8026 useless extension candidates. Maximal degree in co-relation 125314. Up to 4607 conditions per place. [2023-08-31 19:09:09,934 INFO L137 encePairwiseOnDemand]: 407/418 looper letters, 793 selfloop transitions, 549 changer transitions 0/1725 dead transitions. [2023-08-31 19:09:09,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 609 places, 1725 transitions, 114080 flow [2023-08-31 19:09:09,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-31 19:09:09,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-31 19:09:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1411 transitions. [2023-08-31 19:09:09,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42194976076555024 [2023-08-31 19:09:09,936 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1411 transitions. [2023-08-31 19:09:09,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1411 transitions. [2023-08-31 19:09:09,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:09:09,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1411 transitions. [2023-08-31 19:09:09,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 176.375) internal successors, (1411), 8 states have internal predecessors, (1411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:09,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:09,940 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 418.0) internal successors, (3762), 9 states have internal predecessors, (3762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:09,940 INFO L175 Difference]: Start difference. First operand has 602 places, 1659 transitions, 109750 flow. Second operand 8 states and 1411 transitions. [2023-08-31 19:09:09,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 609 places, 1725 transitions, 114080 flow [2023-08-31 19:09:15,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 609 places, 1725 transitions, 114072 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-08-31 19:09:15,465 INFO L231 Difference]: Finished difference. Result has 614 places, 1711 transitions, 113572 flow [2023-08-31 19:09:15,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=109742, PETRI_DIFFERENCE_MINUEND_PLACES=602, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1659, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=509, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=113572, PETRI_PLACES=614, PETRI_TRANSITIONS=1711} [2023-08-31 19:09:15,467 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 540 predicate places. [2023-08-31 19:09:15,467 INFO L495 AbstractCegarLoop]: Abstraction has has 614 places, 1711 transitions, 113572 flow [2023-08-31 19:09:15,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 170.0) internal successors, (1530), 9 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:15,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:09:15,467 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:09:15,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-08-31 19:09:15,467 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:09:15,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:09:15,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1852824615, now seen corresponding path program 1 times [2023-08-31 19:09:15,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:09:15,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757515661] [2023-08-31 19:09:15,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:09:15,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:09:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:09:16,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:09:16,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:09:16,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757515661] [2023-08-31 19:09:16,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757515661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:09:16,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:09:16,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:09:16,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855287617] [2023-08-31 19:09:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:09:16,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:09:16,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:09:16,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:09:16,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:09:17,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:09:17,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 1711 transitions, 113572 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:17,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:09:17,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:09:17,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:09:25,993 INFO L130 PetriNetUnfolder]: 2746/8062 cut-off events. [2023-08-31 19:09:25,993 INFO L131 PetriNetUnfolder]: For 1644492/1645832 co-relation queries the response was YES. [2023-08-31 19:09:26,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130665 conditions, 8062 events. 2746/8062 cut-off events. For 1644492/1645832 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 85982 event pairs, 572 based on Foata normal form. 125/8053 useless extension candidates. Maximal degree in co-relation 130434. Up to 3873 conditions per place. [2023-08-31 19:09:26,161 INFO L137 encePairwiseOnDemand]: 407/418 looper letters, 1007 selfloop transitions, 374 changer transitions 0/1764 dead transitions. [2023-08-31 19:09:26,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 623 places, 1764 transitions, 118189 flow [2023-08-31 19:09:26,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:09:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:09:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1735 transitions. [2023-08-31 19:09:26,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150717703349282 [2023-08-31 19:09:26,163 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1735 transitions. [2023-08-31 19:09:26,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1735 transitions. [2023-08-31 19:09:26,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:09:26,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1735 transitions. [2023-08-31 19:09:26,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 173.5) internal successors, (1735), 10 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:26,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:26,168 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:26,168 INFO L175 Difference]: Start difference. First operand has 614 places, 1711 transitions, 113572 flow. Second operand 10 states and 1735 transitions. [2023-08-31 19:09:26,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 623 places, 1764 transitions, 118189 flow [2023-08-31 19:09:32,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 1764 transitions, 118161 flow, removed 11 selfloop flow, removed 2 redundant places. [2023-08-31 19:09:32,246 INFO L231 Difference]: Finished difference. Result has 627 places, 1733 transitions, 116400 flow [2023-08-31 19:09:32,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=113552, PETRI_DIFFERENCE_MINUEND_PLACES=612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=352, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=116400, PETRI_PLACES=627, PETRI_TRANSITIONS=1733} [2023-08-31 19:09:32,248 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 553 predicate places. [2023-08-31 19:09:32,248 INFO L495 AbstractCegarLoop]: Abstraction has has 627 places, 1733 transitions, 116400 flow [2023-08-31 19:09:32,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:32,248 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:09:32,248 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:09:32,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-08-31 19:09:32,248 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:09:32,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:09:32,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1205286593, now seen corresponding path program 2 times [2023-08-31 19:09:32,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:09:32,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840059011] [2023-08-31 19:09:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:09:32,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:09:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:09:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:09:33,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:09:33,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840059011] [2023-08-31 19:09:33,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840059011] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:09:33,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:09:33,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:09:33,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136523153] [2023-08-31 19:09:33,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:09:33,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:09:33,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:09:33,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:09:33,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:09:34,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:09:34,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 627 places, 1733 transitions, 116400 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:34,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:09:34,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:09:34,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:09:44,369 INFO L130 PetriNetUnfolder]: 2793/8254 cut-off events. [2023-08-31 19:09:44,369 INFO L131 PetriNetUnfolder]: For 1708020/1709510 co-relation queries the response was YES. [2023-08-31 19:09:44,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137102 conditions, 8254 events. 2793/8254 cut-off events. For 1708020/1709510 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 88703 event pairs, 833 based on Foata normal form. 78/8199 useless extension candidates. Maximal degree in co-relation 136865. Up to 4587 conditions per place. [2023-08-31 19:09:44,528 INFO L137 encePairwiseOnDemand]: 406/418 looper letters, 812 selfloop transitions, 621 changer transitions 0/1816 dead transitions. [2023-08-31 19:09:44,529 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 1816 transitions, 122860 flow [2023-08-31 19:09:44,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:09:44,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:09:44,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1735 transitions. [2023-08-31 19:09:44,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4150717703349282 [2023-08-31 19:09:44,530 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1735 transitions. [2023-08-31 19:09:44,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1735 transitions. [2023-08-31 19:09:44,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:09:44,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1735 transitions. [2023-08-31 19:09:44,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 173.5) internal successors, (1735), 10 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:44,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:44,533 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:44,533 INFO L175 Difference]: Start difference. First operand has 627 places, 1733 transitions, 116400 flow. Second operand 10 states and 1735 transitions. [2023-08-31 19:09:44,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 1816 transitions, 122860 flow [2023-08-31 19:09:50,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 1816 transitions, 122546 flow, removed 13 selfloop flow, removed 3 redundant places. [2023-08-31 19:09:50,633 INFO L231 Difference]: Finished difference. Result has 638 places, 1798 transitions, 121999 flow [2023-08-31 19:09:50,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=116114, PETRI_DIFFERENCE_MINUEND_PLACES=624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1733, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=556, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=121999, PETRI_PLACES=638, PETRI_TRANSITIONS=1798} [2023-08-31 19:09:50,635 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 564 predicate places. [2023-08-31 19:09:50,635 INFO L495 AbstractCegarLoop]: Abstraction has has 638 places, 1798 transitions, 121999 flow [2023-08-31 19:09:50,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:50,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:09:50,636 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:09:50,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-08-31 19:09:50,636 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:09:50,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:09:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1522891007, now seen corresponding path program 3 times [2023-08-31 19:09:50,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:09:50,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358830617] [2023-08-31 19:09:50,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:09:50,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:09:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:09:51,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:09:51,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:09:51,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358830617] [2023-08-31 19:09:51,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358830617] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:09:51,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:09:51,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:09:51,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913829737] [2023-08-31 19:09:51,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:09:51,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:09:51,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:09:51,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:09:51,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:09:52,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:09:52,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 638 places, 1798 transitions, 121999 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:09:52,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:09:52,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:09:52,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:10:02,398 INFO L130 PetriNetUnfolder]: 2871/8527 cut-off events. [2023-08-31 19:10:02,398 INFO L131 PetriNetUnfolder]: For 1769407/1770897 co-relation queries the response was YES. [2023-08-31 19:10:02,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143714 conditions, 8527 events. 2871/8527 cut-off events. For 1769407/1770897 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 92500 event pairs, 847 based on Foata normal form. 78/8472 useless extension candidates. Maximal degree in co-relation 143472. Up to 4509 conditions per place. [2023-08-31 19:10:02,572 INFO L137 encePairwiseOnDemand]: 406/418 looper letters, 900 selfloop transitions, 707 changer transitions 0/1990 dead transitions. [2023-08-31 19:10:02,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 1990 transitions, 137563 flow [2023-08-31 19:10:02,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:10:02,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:10:02,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1738 transitions. [2023-08-31 19:10:02,574 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41578947368421054 [2023-08-31 19:10:02,574 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1738 transitions. [2023-08-31 19:10:02,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1738 transitions. [2023-08-31 19:10:02,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:10:02,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1738 transitions. [2023-08-31 19:10:02,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 173.8) internal successors, (1738), 10 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:02,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:02,577 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:02,577 INFO L175 Difference]: Start difference. First operand has 638 places, 1798 transitions, 121999 flow. Second operand 10 states and 1738 transitions. [2023-08-31 19:10:02,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 1990 transitions, 137563 flow [2023-08-31 19:10:09,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 644 places, 1990 transitions, 137359 flow, removed 42 selfloop flow, removed 3 redundant places. [2023-08-31 19:10:09,229 INFO L231 Difference]: Finished difference. Result has 648 places, 1925 transitions, 133791 flow [2023-08-31 19:10:09,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=121808, PETRI_DIFFERENCE_MINUEND_PLACES=635, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1798, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=592, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=133791, PETRI_PLACES=648, PETRI_TRANSITIONS=1925} [2023-08-31 19:10:09,231 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 574 predicate places. [2023-08-31 19:10:09,231 INFO L495 AbstractCegarLoop]: Abstraction has has 648 places, 1925 transitions, 133791 flow [2023-08-31 19:10:09,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:09,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:10:09,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:10:09,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-08-31 19:10:09,232 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:10:09,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:10:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1288515669, now seen corresponding path program 4 times [2023-08-31 19:10:09,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:10:09,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041714787] [2023-08-31 19:10:09,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:10:09,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:10:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:10:10,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:10:10,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:10:10,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041714787] [2023-08-31 19:10:10,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041714787] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:10:10,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:10:10,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-31 19:10:10,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360955570] [2023-08-31 19:10:10,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:10:10,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-31 19:10:10,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:10:10,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-31 19:10:10,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-31 19:10:10,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 418 [2023-08-31 19:10:10,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 648 places, 1925 transitions, 133791 flow. Second operand has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:10,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:10:10,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 418 [2023-08-31 19:10:10,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:10:21,105 INFO L130 PetriNetUnfolder]: 2871/8592 cut-off events. [2023-08-31 19:10:21,105 INFO L131 PetriNetUnfolder]: For 1821042/1822532 co-relation queries the response was YES. [2023-08-31 19:10:21,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146959 conditions, 8592 events. 2871/8592 cut-off events. For 1821042/1822532 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 93667 event pairs, 821 based on Foata normal form. 78/8537 useless extension candidates. Maximal degree in co-relation 146713. Up to 4652 conditions per place. [2023-08-31 19:10:21,281 INFO L137 encePairwiseOnDemand]: 406/418 looper letters, 876 selfloop transitions, 769 changer transitions 0/2028 dead transitions. [2023-08-31 19:10:21,281 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 2028 transitions, 141870 flow [2023-08-31 19:10:21,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-31 19:10:21,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-31 19:10:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1736 transitions. [2023-08-31 19:10:21,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.415311004784689 [2023-08-31 19:10:21,282 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1736 transitions. [2023-08-31 19:10:21,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1736 transitions. [2023-08-31 19:10:21,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:10:21,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1736 transitions. [2023-08-31 19:10:21,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 173.6) internal successors, (1736), 10 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:21,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:21,285 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 418.0) internal successors, (4598), 11 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:21,285 INFO L175 Difference]: Start difference. First operand has 648 places, 1925 transitions, 133791 flow. Second operand 10 states and 1736 transitions. [2023-08-31 19:10:21,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 656 places, 2028 transitions, 141870 flow [2023-08-31 19:10:28,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 651 places, 2028 transitions, 140795 flow, removed 89 selfloop flow, removed 5 redundant places. [2023-08-31 19:10:28,084 INFO L231 Difference]: Finished difference. Result has 655 places, 1999 transitions, 139386 flow [2023-08-31 19:10:28,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=132860, PETRI_DIFFERENCE_MINUEND_PLACES=642, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1924, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=694, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=139386, PETRI_PLACES=655, PETRI_TRANSITIONS=1999} [2023-08-31 19:10:28,086 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 581 predicate places. [2023-08-31 19:10:28,086 INFO L495 AbstractCegarLoop]: Abstraction has has 655 places, 1999 transitions, 139386 flow [2023-08-31 19:10:28,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:28,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:10:28,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:10:28,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-08-31 19:10:28,086 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-31 19:10:28,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:10:28,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2081951262, now seen corresponding path program 1 times [2023-08-31 19:10:28,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:10:28,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313100823] [2023-08-31 19:10:28,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:10:28,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:10:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:10:28,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:10:28,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:10:28,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313100823] [2023-08-31 19:10:28,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313100823] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:10:28,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:10:28,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:10:28,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076884756] [2023-08-31 19:10:28,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:10:28,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:10:28,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:10:28,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:10:28,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:10:28,622 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 418 [2023-08-31 19:10:28,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 1999 transitions, 139386 flow. Second operand has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:28,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:10:28,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 418 [2023-08-31 19:10:28,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:10:36,304 INFO L130 PetriNetUnfolder]: 2309/7920 cut-off events. [2023-08-31 19:10:36,304 INFO L131 PetriNetUnfolder]: For 1874617/1876414 co-relation queries the response was YES. [2023-08-31 19:10:36,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143601 conditions, 7920 events. 2309/7920 cut-off events. For 1874617/1876414 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 91323 event pairs, 860 based on Foata normal form. 70/7857 useless extension candidates. Maximal degree in co-relation 143354. Up to 4537 conditions per place. [2023-08-31 19:10:36,446 INFO L137 encePairwiseOnDemand]: 411/418 looper letters, 0 selfloop transitions, 0 changer transitions 2000/2000 dead transitions. [2023-08-31 19:10:36,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 2000 transitions, 142563 flow [2023-08-31 19:10:36,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:10:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:10:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1025 transitions. [2023-08-31 19:10:36,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4086921850079745 [2023-08-31 19:10:36,448 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1025 transitions. [2023-08-31 19:10:36,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1025 transitions. [2023-08-31 19:10:36,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:10:36,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1025 transitions. [2023-08-31 19:10:36,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.83333333333334) internal successors, (1025), 6 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:36,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:36,450 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 418.0) internal successors, (2926), 7 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:36,450 INFO L175 Difference]: Start difference. First operand has 655 places, 1999 transitions, 139386 flow. Second operand 6 states and 1025 transitions. [2023-08-31 19:10:36,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 659 places, 2000 transitions, 142563 flow [2023-08-31 19:10:43,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 649 places, 2000 transitions, 141475 flow, removed 11 selfloop flow, removed 10 redundant places. [2023-08-31 19:10:43,380 INFO L231 Difference]: Finished difference. Result has 649 places, 0 transitions, 0 flow [2023-08-31 19:10:43,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=418, PETRI_DIFFERENCE_MINUEND_FLOW=138296, PETRI_DIFFERENCE_MINUEND_PLACES=644, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1998, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=649, PETRI_TRANSITIONS=0} [2023-08-31 19:10:43,381 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 575 predicate places. [2023-08-31 19:10:43,382 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 0 transitions, 0 flow [2023-08-31 19:10:43,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.66666666666666) internal successors, (1006), 6 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:43,384 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2023-08-31 19:10:43,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-08-31 19:10:43,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-08-31 19:10:43,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-08-31 19:10:43,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2023-08-31 19:10:43,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-08-31 19:10:43,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-08-31 19:10:43,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-08-31 19:10:43,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2023-08-31 19:10:43,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2023-08-31 19:10:43,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 21 remaining) [2023-08-31 19:10:43,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 21 remaining) [2023-08-31 19:10:43,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-08-31 19:10:43,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-08-31 19:10:43,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-08-31 19:10:43,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-08-31 19:10:43,388 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2023-08-31 19:10:43,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2023-08-31 19:10:43,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2023-08-31 19:10:43,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-08-31 19:10:43,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-08-31 19:10:43,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-08-31 19:10:43,393 INFO L445 BasicCegarLoop]: Path program histogram: [27, 6, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:10:43,398 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:10:43,398 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:10:43,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:10:43 BasicIcfg [2023-08-31 19:10:43,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:10:43,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:10:43,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:10:43,402 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:10:43,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:02:44" (3/4) ... [2023-08-31 19:10:43,405 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 19:10:43,409 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-31 19:10:43,416 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-31 19:10:43,417 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-31 19:10:43,417 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 19:10:43,417 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 19:10:43,449 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 19:10:43,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:10:43,450 INFO L158 Benchmark]: Toolchain (without parser) took 481013.51ms. Allocated memory was 71.3MB in the beginning and 7.5GB in the end (delta: 7.5GB). Free memory was 37.6MB in the beginning and 4.7GB in the end (delta: -4.7GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2023-08-31 19:10:43,450 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:10:43,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.83ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 37.5MB in the beginning and 58.1MB in the end (delta: -20.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2023-08-31 19:10:43,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.40ms. Allocated memory is still 88.1MB. Free memory was 58.0MB in the beginning and 53.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:10:43,451 INFO L158 Benchmark]: Boogie Preprocessor took 79.99ms. Allocated memory is still 88.1MB. Free memory was 53.9MB in the beginning and 50.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:10:43,451 INFO L158 Benchmark]: RCFGBuilder took 844.93ms. Allocated memory is still 88.1MB. Free memory was 50.1MB in the beginning and 36.2MB in the end (delta: 13.9MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-08-31 19:10:43,451 INFO L158 Benchmark]: TraceAbstraction took 479125.59ms. Allocated memory was 88.1MB in the beginning and 7.5GB in the end (delta: 7.5GB). Free memory was 35.8MB in the beginning and 4.7GB in the end (delta: -4.7GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. [2023-08-31 19:10:43,452 INFO L158 Benchmark]: Witness Printer took 47.54ms. Allocated memory is still 7.5GB. Free memory was 4.7GB in the beginning and 4.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:10:43,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 71.3MB. Free memory is still 48.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 812.83ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 37.5MB in the beginning and 58.1MB in the end (delta: -20.6MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.40ms. Allocated memory is still 88.1MB. Free memory was 58.0MB in the beginning and 53.9MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.99ms. Allocated memory is still 88.1MB. Free memory was 53.9MB in the beginning and 50.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 844.93ms. Allocated memory is still 88.1MB. Free memory was 50.1MB in the beginning and 36.2MB in the end (delta: 13.9MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * TraceAbstraction took 479125.59ms. Allocated memory was 88.1MB in the beginning and 7.5GB in the end (delta: 7.5GB). Free memory was 35.8MB in the beginning and 4.7GB in the end (delta: -4.7GB). Peak memory consumption was 3.3GB. Max. memory is 16.1GB. * Witness Printer took 47.54ms. Allocated memory is still 7.5GB. Free memory was 4.7GB in the beginning and 4.7GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.9s, 215 PlacesBefore, 74 PlacesAfterwards, 214 TransitionsBefore, 71 TransitionsAfterwards, 4680 CoEnabledTransitionPairs, 11 FixpointIterations, 106 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 29 ConcurrentYvCompositions, 2 ChoiceCompositions, 201 TotalNumberOfCompositions, 27136 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4173, independent: 2968, independent conditional: 0, independent unconditional: 2968, dependent: 1205, dependent conditional: 0, dependent unconditional: 1205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2012, independent: 1930, independent conditional: 0, independent unconditional: 1930, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4173, independent: 1038, independent conditional: 0, independent unconditional: 1038, dependent: 1123, dependent conditional: 0, dependent unconditional: 1123, unknown: 2012, unknown conditional: 0, unknown unconditional: 2012] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 59, Negative conditional cache size: 0, Negative unconditional cache size: 59, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1738]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1699]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 227 locations, 21 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 479.0s, OverallIterations: 63, TraceHistogramMax: 1, PathProgramHistogramMax: 27, EmptinessCheckTime: 0.0s, AutomataDifference: 403.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 44.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31298 SdHoareTripleChecker+Valid, 114.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25216 mSDsluCounter, 17161 SdHoareTripleChecker+Invalid, 103.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15915 mSDsCounter, 10173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120142 IncrementalHoareTripleChecker+Invalid, 130315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10173 mSolverCounterUnsat, 1246 mSDtfsCounter, 120142 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1075 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1011 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2265 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139386occurred in iteration=62, InterpolantAutomatonStates: 689, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 28.8s InterpolantComputationTime, 1012 NumberOfCodeBlocks, 1012 NumberOfCodeBlocksAsserted, 63 NumberOfCheckSat, 949 ConstructedInterpolants, 0 QuantifiedInterpolants, 16592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 63 InterpolantComputations, 63 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-31 19:10:43,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE