./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --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_3-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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 16:32:44,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 16:32:44,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 16:32:44,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 16:32:44,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 16:32:44,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 16:32:44,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 16:32:44,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 16:32:44,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 16:32:44,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 16:32:44,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 16:32:44,646 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 16:32:44,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 16:32:44,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 16:32:44,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 16:32:44,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 16:32:44,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 16:32:44,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 16:32:44,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 16:32:44,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 16:32:44,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 16:32:44,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 16:32:44,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 16:32:44,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 16:32:44,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 16:32:44,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 16:32:44,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 16:32:44,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 16:32:44,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 16:32:44,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 16:32:44,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 16:32:44,687 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 16:32:44,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 16:32:44,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 16:32:44,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 16:32:44,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 16:32:44,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 16:32:44,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 16:32:44,690 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 16:32:44,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 16:32:44,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 16:32:44,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 16:32:44,725 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 16:32:44,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 16:32:44,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 16:32:44,726 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 16:32:44,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 16:32:44,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 16:32:44,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 16:32:44,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 16:32:44,728 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 16:32:44,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 16:32:44,729 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 16:32:44,729 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 16:32:44,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 16:32:44,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 16:32:44,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 16:32:44,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 16:32:44,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 16:32:44,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 16:32:44,731 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 16:32:44,731 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 16:32:44,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 16:32:44,731 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 16:32:44,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 16:32:44,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 16:32:44,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 16:32:44,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 16:32:44,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:32:44,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 16:32:44,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 16:32:44,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 16:32:44,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 16:32:44,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 16:32:44,734 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 16:32:44,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 16:32:44,734 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 16:32:44,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 16:32:44,734 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 16:32:44,734 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 16:32:45,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 16:32:45,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 16:32:45,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 16:32:45,056 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 16:32:45,056 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 16:32:45,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-29 16:32:46,282 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 16:32:46,618 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 16:32:46,619 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-29 16:32:46,637 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1aec6594/0550a341af994edfb712660129945adf/FLAG0169785e5 [2023-08-29 16:32:46,655 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1aec6594/0550a341af994edfb712660129945adf [2023-08-29 16:32:46,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 16:32:46,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 16:32:46,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 16:32:46,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 16:32:46,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 16:32:46,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:32:46" (1/1) ... [2023-08-29 16:32:46,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea4dc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:46, skipping insertion in model container [2023-08-29 16:32:46,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:32:46" (1/1) ... [2023-08-29 16:32:46,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 16:32:46,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 16:32:46,828 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 16:32:47,166 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_3-container_of.i[75002,75015] [2023-08-29 16:32:47,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:32:47,242 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 16:32:47,252 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-29 16:32:47,297 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_3-container_of.i[75002,75015] [2023-08-29 16:32:47,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:32:47,446 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:32:47,446 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:32:47,446 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 16:32:47,452 INFO L208 MainTranslator]: Completed translation [2023-08-29 16:32:47,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47 WrapperNode [2023-08-29 16:32:47,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 16:32:47,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 16:32:47,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 16:32:47,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 16:32:47,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,543 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 226 [2023-08-29 16:32:47,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 16:32:47,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 16:32:47,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 16:32:47,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 16:32:47,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 16:32:47,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 16:32:47,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 16:32:47,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 16:32:47,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (1/1) ... [2023-08-29 16:32:47,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:32:47,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:32:47,657 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) [2023-08-29 16:32:47,676 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 [2023-08-29 16:32:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-29 16:32:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 16:32:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-29 16:32:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 16:32:47,721 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 16:32:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 16:32:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 16:32:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 16:32:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 16:32:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-29 16:32:47,722 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-29 16:32:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 16:32:47,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 16:32:47,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 16:32:47,724 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 16:32:47,963 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 16:32:47,965 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 16:32:48,390 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 16:32:48,512 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 16:32:48,512 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 16:32:48,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:32:48 BoogieIcfgContainer [2023-08-29 16:32:48,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 16:32:48,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 16:32:48,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 16:32:48,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 16:32:48,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:32:46" (1/3) ... [2023-08-29 16:32:48,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186352c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:32:48, skipping insertion in model container [2023-08-29 16:32:48,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:32:47" (2/3) ... [2023-08-29 16:32:48,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186352c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:32:48, skipping insertion in model container [2023-08-29 16:32:48,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:32:48" (3/3) ... [2023-08-29 16:32:48,522 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-08-29 16:32:48,530 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 16:32:48,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 16:32:48,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-08-29 16:32:48,538 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 16:32:48,635 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 16:32:48,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 231 places, 231 transitions, 478 flow [2023-08-29 16:32:48,813 INFO L130 PetriNetUnfolder]: 8/301 cut-off events. [2023-08-29 16:32:48,814 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 16:32:48,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 301 events. 8/301 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 567 event pairs, 0 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 155. Up to 4 conditions per place. [2023-08-29 16:32:48,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 231 places, 231 transitions, 478 flow [2023-08-29 16:32:48,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 229 places, 228 transitions, 468 flow [2023-08-29 16:32:48,832 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 16:32:48,850 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 229 places, 228 transitions, 468 flow [2023-08-29 16:32:48,859 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 229 places, 228 transitions, 468 flow [2023-08-29 16:32:48,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 229 places, 228 transitions, 468 flow [2023-08-29 16:32:48,916 INFO L130 PetriNetUnfolder]: 7/300 cut-off events. [2023-08-29 16:32:48,917 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 16:32:48,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 300 events. 7/300 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 581 event pairs, 0 based on Foata normal form. 0/266 useless extension candidates. Maximal degree in co-relation 154. Up to 4 conditions per place. [2023-08-29 16:32:48,924 INFO L119 LiptonReduction]: Number of co-enabled transitions 6368 [2023-08-29 16:33:08,546 WARN L222 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 192 DAG size of output: 186 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 16:33:17,395 WARN L222 SmtUtils]: Spent 5.00s on a formula simplification. DAG size of input: 192 DAG size of output: 186 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-29 16:33:38,496 INFO L134 LiptonReduction]: Checked pairs total: 34732 [2023-08-29 16:33:38,496 INFO L136 LiptonReduction]: Total number of compositions: 194 [2023-08-29 16:33:38,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 16:33:38,512 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;@5505ec46, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 16:33:38,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-08-29 16:33:38,514 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-29 16:33:38,514 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:33:38,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:38,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 16:33:38,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:38,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:38,520 INFO L85 PathProgramCache]: Analyzing trace with hash 865, now seen corresponding path program 1 times [2023-08-29 16:33:38,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:38,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317068168] [2023-08-29 16:33:38,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:38,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:38,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:38,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:38,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317068168] [2023-08-29 16:33:38,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317068168] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:38,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:38,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 16:33:38,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660557012] [2023-08-29 16:33:38,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:38,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 16:33:38,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:38,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 16:33:38,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 16:33:38,779 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 425 [2023-08-29 16:33:38,781 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 82 transitions, 176 flow. Second operand has 2 states, 2 states have (on average 199.5) internal successors, (399), 2 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:38,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:38,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 425 [2023-08-29 16:33:38,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:39,251 INFO L130 PetriNetUnfolder]: 771/2183 cut-off events. [2023-08-29 16:33:39,252 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-29 16:33:39,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3488 conditions, 2183 events. 771/2183 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15060 event pairs, 770 based on Foata normal form. 68/2095 useless extension candidates. Maximal degree in co-relation 3320. Up to 1281 conditions per place. [2023-08-29 16:33:39,264 INFO L137 encePairwiseOnDemand]: 409/425 looper letters, 31 selfloop transitions, 0 changer transitions 1/65 dead transitions. [2023-08-29 16:33:39,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 65 transitions, 206 flow [2023-08-29 16:33:39,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 16:33:39,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 16:33:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 446 transitions. [2023-08-29 16:33:39,282 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5247058823529411 [2023-08-29 16:33:39,283 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 446 transitions. [2023-08-29 16:33:39,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 446 transitions. [2023-08-29 16:33:39,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:39,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 446 transitions. [2023-08-29 16:33:39,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 223.0) internal successors, (446), 2 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:39,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:39,298 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:39,300 INFO L175 Difference]: Start difference. First operand has 85 places, 82 transitions, 176 flow. Second operand 2 states and 446 transitions. [2023-08-29 16:33:39,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 65 transitions, 206 flow [2023-08-29 16:33:39,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 65 transitions, 198 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 16:33:39,308 INFO L231 Difference]: Finished difference. Result has 67 places, 64 transitions, 132 flow [2023-08-29 16:33:39,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=132, PETRI_PLACES=67, PETRI_TRANSITIONS=64} [2023-08-29 16:33:39,315 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -18 predicate places. [2023-08-29 16:33:39,316 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 64 transitions, 132 flow [2023-08-29 16:33:39,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 199.5) internal successors, (399), 2 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:39,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:39,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:39,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 16:33:39,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:39,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:39,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1237697666, now seen corresponding path program 1 times [2023-08-29 16:33:39,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:39,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048200241] [2023-08-29 16:33:39,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:39,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:39,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:39,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:39,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048200241] [2023-08-29 16:33:39,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048200241] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:39,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:39,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:33:39,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621252336] [2023-08-29 16:33:39,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:39,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:33:39,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:39,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:33:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:33:40,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 425 [2023-08-29 16:33:40,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 64 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:40,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:40,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 425 [2023-08-29 16:33:40,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:40,882 INFO L130 PetriNetUnfolder]: 1823/3443 cut-off events. [2023-08-29 16:33:40,882 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-29 16:33:40,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6445 conditions, 3443 events. 1823/3443 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 19554 event pairs, 1363 based on Foata normal form. 0/3299 useless extension candidates. Maximal degree in co-relation 6442. Up to 2655 conditions per place. [2023-08-29 16:33:40,897 INFO L137 encePairwiseOnDemand]: 411/425 looper letters, 63 selfloop transitions, 31 changer transitions 0/109 dead transitions. [2023-08-29 16:33:40,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 109 transitions, 410 flow [2023-08-29 16:33:40,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:33:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:33:40,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2023-08-29 16:33:40,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41843137254901963 [2023-08-29 16:33:40,901 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2023-08-29 16:33:40,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2023-08-29 16:33:40,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:40,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2023-08-29 16:33:40,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:40,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:40,911 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:40,911 INFO L175 Difference]: Start difference. First operand has 67 places, 64 transitions, 132 flow. Second operand 6 states and 1067 transitions. [2023-08-29 16:33:40,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 109 transitions, 410 flow [2023-08-29 16:33:40,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 109 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:33:40,914 INFO L231 Difference]: Finished difference. Result has 76 places, 93 transitions, 338 flow [2023-08-29 16:33:40,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=76, PETRI_TRANSITIONS=93} [2023-08-29 16:33:40,915 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -9 predicate places. [2023-08-29 16:33:40,915 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 93 transitions, 338 flow [2023-08-29 16:33:40,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.16666666666666) internal successors, (979), 6 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:40,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:40,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:40,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 16:33:40,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:40,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:40,917 INFO L85 PathProgramCache]: Analyzing trace with hash -935997003, now seen corresponding path program 1 times [2023-08-29 16:33:40,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:40,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914593190] [2023-08-29 16:33:40,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:40,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:41,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914593190] [2023-08-29 16:33:41,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914593190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:41,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:41,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:33:41,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391912252] [2023-08-29 16:33:41,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:41,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:33:41,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:33:41,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:33:41,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 425 [2023-08-29 16:33:41,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 93 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:41,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:41,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 425 [2023-08-29 16:33:41,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:41,514 INFO L130 PetriNetUnfolder]: 1114/2782 cut-off events. [2023-08-29 16:33:41,514 INFO L131 PetriNetUnfolder]: For 924/924 co-relation queries the response was YES. [2023-08-29 16:33:41,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6005 conditions, 2782 events. 1114/2782 cut-off events. For 924/924 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 18666 event pairs, 830 based on Foata normal form. 0/2665 useless extension candidates. Maximal degree in co-relation 5997. Up to 1653 conditions per place. [2023-08-29 16:33:41,530 INFO L137 encePairwiseOnDemand]: 423/425 looper letters, 61 selfloop transitions, 1 changer transitions 0/99 dead transitions. [2023-08-29 16:33:41,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 99 transitions, 478 flow [2023-08-29 16:33:41,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:33:41,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:33:41,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 623 transitions. [2023-08-29 16:33:41,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4886274509803922 [2023-08-29 16:33:41,533 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 623 transitions. [2023-08-29 16:33:41,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 623 transitions. [2023-08-29 16:33:41,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:41,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 623 transitions. [2023-08-29 16:33:41,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:41,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:41,539 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:41,539 INFO L175 Difference]: Start difference. First operand has 76 places, 93 transitions, 338 flow. Second operand 3 states and 623 transitions. [2023-08-29 16:33:41,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 99 transitions, 478 flow [2023-08-29 16:33:41,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 99 transitions, 478 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:33:41,546 INFO L231 Difference]: Finished difference. Result has 79 places, 93 transitions, 343 flow [2023-08-29 16:33:41,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=79, PETRI_TRANSITIONS=93} [2023-08-29 16:33:41,547 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -6 predicate places. [2023-08-29 16:33:41,548 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 93 transitions, 343 flow [2023-08-29 16:33:41,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:41,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:41,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:41,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 16:33:41,549 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:41,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:41,549 INFO L85 PathProgramCache]: Analyzing trace with hash -814860033, now seen corresponding path program 1 times [2023-08-29 16:33:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:41,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630413532] [2023-08-29 16:33:41,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:41,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:41,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:41,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630413532] [2023-08-29 16:33:41,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630413532] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:41,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:41,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:33:41,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474820364] [2023-08-29 16:33:41,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:41,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:33:41,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:41,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:33:41,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:33:42,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 425 [2023-08-29 16:33:42,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 93 transitions, 343 flow. Second operand has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:42,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:42,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 425 [2023-08-29 16:33:42,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:43,173 INFO L130 PetriNetUnfolder]: 2166/3958 cut-off events. [2023-08-29 16:33:43,173 INFO L131 PetriNetUnfolder]: For 1434/1434 co-relation queries the response was YES. [2023-08-29 16:33:43,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9518 conditions, 3958 events. 2166/3958 cut-off events. For 1434/1434 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 21711 event pairs, 1423 based on Foata normal form. 0/3866 useless extension candidates. Maximal degree in co-relation 9508. Up to 3034 conditions per place. [2023-08-29 16:33:43,198 INFO L137 encePairwiseOnDemand]: 412/425 looper letters, 88 selfloop transitions, 30 changer transitions 0/138 dead transitions. [2023-08-29 16:33:43,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 138 transitions, 717 flow [2023-08-29 16:33:43,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:33:43,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:33:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1066 transitions. [2023-08-29 16:33:43,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4180392156862745 [2023-08-29 16:33:43,203 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1066 transitions. [2023-08-29 16:33:43,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1066 transitions. [2023-08-29 16:33:43,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:43,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1066 transitions. [2023-08-29 16:33:43,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.66666666666666) internal successors, (1066), 6 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:43,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:43,211 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:43,212 INFO L175 Difference]: Start difference. First operand has 79 places, 93 transitions, 343 flow. Second operand 6 states and 1066 transitions. [2023-08-29 16:33:43,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 138 transitions, 717 flow [2023-08-29 16:33:43,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 138 transitions, 716 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 16:33:43,218 INFO L231 Difference]: Finished difference. Result has 88 places, 122 transitions, 592 flow [2023-08-29 16:33:43,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=592, PETRI_PLACES=88, PETRI_TRANSITIONS=122} [2023-08-29 16:33:43,219 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 3 predicate places. [2023-08-29 16:33:43,219 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 122 transitions, 592 flow [2023-08-29 16:33:43,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.33333333333334) internal successors, (980), 6 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:43,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:43,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:43,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 16:33:43,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:43,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:43,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1862340804, now seen corresponding path program 1 times [2023-08-29 16:33:43,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:43,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454310372] [2023-08-29 16:33:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:43,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:43,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:43,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454310372] [2023-08-29 16:33:43,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454310372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:43,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:43,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:33:43,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30946411] [2023-08-29 16:33:43,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:43,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:33:43,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:43,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:33:43,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:33:43,940 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 425 [2023-08-29 16:33:43,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 122 transitions, 592 flow. Second operand has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:43,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:43,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 425 [2023-08-29 16:33:43,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:44,898 INFO L130 PetriNetUnfolder]: 2300/4306 cut-off events. [2023-08-29 16:33:44,898 INFO L131 PetriNetUnfolder]: For 2994/3002 co-relation queries the response was YES. [2023-08-29 16:33:44,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12412 conditions, 4306 events. 2300/4306 cut-off events. For 2994/3002 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 25115 event pairs, 1236 based on Foata normal form. 1/4262 useless extension candidates. Maximal degree in co-relation 12398. Up to 3285 conditions per place. [2023-08-29 16:33:44,927 INFO L137 encePairwiseOnDemand]: 414/425 looper letters, 127 selfloop transitions, 22 changer transitions 0/171 dead transitions. [2023-08-29 16:33:44,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 171 transitions, 1090 flow [2023-08-29 16:33:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:33:44,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:33:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1150 transitions. [2023-08-29 16:33:44,932 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45098039215686275 [2023-08-29 16:33:44,932 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1150 transitions. [2023-08-29 16:33:44,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1150 transitions. [2023-08-29 16:33:44,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:44,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1150 transitions. [2023-08-29 16:33:44,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.66666666666666) internal successors, (1150), 6 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:44,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:44,941 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:44,941 INFO L175 Difference]: Start difference. First operand has 88 places, 122 transitions, 592 flow. Second operand 6 states and 1150 transitions. [2023-08-29 16:33:44,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 171 transitions, 1090 flow [2023-08-29 16:33:44,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 171 transitions, 1042 flow, removed 24 selfloop flow, removed 0 redundant places. [2023-08-29 16:33:44,955 INFO L231 Difference]: Finished difference. Result has 98 places, 143 transitions, 762 flow [2023-08-29 16:33:44,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=98, PETRI_TRANSITIONS=143} [2023-08-29 16:33:44,958 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 13 predicate places. [2023-08-29 16:33:44,958 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 143 transitions, 762 flow [2023-08-29 16:33:44,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.33333333333334) internal successors, (1070), 6 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:44,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:44,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:44,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 16:33:44,959 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:44,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:44,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1682293634, now seen corresponding path program 1 times [2023-08-29 16:33:44,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:44,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661509541] [2023-08-29 16:33:44,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:44,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:45,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:45,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661509541] [2023-08-29 16:33:45,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661509541] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:45,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:45,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:33:45,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948318334] [2023-08-29 16:33:45,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:45,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:33:45,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:45,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:33:45,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:33:45,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 425 [2023-08-29 16:33:45,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 143 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:45,054 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:45,054 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 425 [2023-08-29 16:33:45,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:45,394 INFO L130 PetriNetUnfolder]: 650/1392 cut-off events. [2023-08-29 16:33:45,394 INFO L131 PetriNetUnfolder]: For 2215/2215 co-relation queries the response was YES. [2023-08-29 16:33:45,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4490 conditions, 1392 events. 650/1392 cut-off events. For 2215/2215 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7185 event pairs, 221 based on Foata normal form. 36/1416 useless extension candidates. Maximal degree in co-relation 4471. Up to 647 conditions per place. [2023-08-29 16:33:45,409 INFO L137 encePairwiseOnDemand]: 423/425 looper letters, 62 selfloop transitions, 1 changer transitions 0/98 dead transitions. [2023-08-29 16:33:45,409 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 98 transitions, 622 flow [2023-08-29 16:33:45,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:33:45,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:33:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 629 transitions. [2023-08-29 16:33:45,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49333333333333335 [2023-08-29 16:33:45,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 629 transitions. [2023-08-29 16:33:45,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 629 transitions. [2023-08-29 16:33:45,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:45,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 629 transitions. [2023-08-29 16:33:45,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:45,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:45,419 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:45,419 INFO L175 Difference]: Start difference. First operand has 98 places, 143 transitions, 762 flow. Second operand 3 states and 629 transitions. [2023-08-29 16:33:45,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 98 transitions, 622 flow [2023-08-29 16:33:45,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 98 transitions, 567 flow, removed 2 selfloop flow, removed 18 redundant places. [2023-08-29 16:33:45,426 INFO L231 Difference]: Finished difference. Result has 81 places, 83 transitions, 381 flow [2023-08-29 16:33:45,427 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=381, PETRI_PLACES=81, PETRI_TRANSITIONS=83} [2023-08-29 16:33:45,429 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -4 predicate places. [2023-08-29 16:33:45,429 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 83 transitions, 381 flow [2023-08-29 16:33:45,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:45,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:45,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:45,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 16:33:45,430 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:45,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:45,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1849887191, now seen corresponding path program 1 times [2023-08-29 16:33:45,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:45,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421794177] [2023-08-29 16:33:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:45,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:46,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:46,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421794177] [2023-08-29 16:33:46,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421794177] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:46,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:46,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:33:46,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386685151] [2023-08-29 16:33:46,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:46,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:33:46,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:46,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:33:46,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:33:46,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:33:46,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 83 transitions, 381 flow. Second operand has 10 states, 10 states have (on average 170.6) internal successors, (1706), 10 states have internal predecessors, (1706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:46,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:46,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:33:46,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:47,910 INFO L130 PetriNetUnfolder]: 1160/2091 cut-off events. [2023-08-29 16:33:47,910 INFO L131 PetriNetUnfolder]: For 2529/2529 co-relation queries the response was YES. [2023-08-29 16:33:47,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7031 conditions, 2091 events. 1160/2091 cut-off events. For 2529/2529 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10677 event pairs, 61 based on Foata normal form. 24/2099 useless extension candidates. Maximal degree in co-relation 7018. Up to 1113 conditions per place. [2023-08-29 16:33:47,921 INFO L137 encePairwiseOnDemand]: 412/425 looper letters, 130 selfloop transitions, 36 changer transitions 0/184 dead transitions. [2023-08-29 16:33:47,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 184 transitions, 1283 flow [2023-08-29 16:33:47,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:33:47,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:33:47,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1812 transitions. [2023-08-29 16:33:47,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4263529411764706 [2023-08-29 16:33:47,927 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1812 transitions. [2023-08-29 16:33:47,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1812 transitions. [2023-08-29 16:33:47,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:47,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1812 transitions. [2023-08-29 16:33:47,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 181.2) internal successors, (1812), 10 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:47,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:47,938 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:47,939 INFO L175 Difference]: Start difference. First operand has 81 places, 83 transitions, 381 flow. Second operand 10 states and 1812 transitions. [2023-08-29 16:33:47,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 184 transitions, 1283 flow [2023-08-29 16:33:47,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 184 transitions, 1281 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 16:33:47,947 INFO L231 Difference]: Finished difference. Result has 95 places, 116 transitions, 806 flow [2023-08-29 16:33:47,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=806, PETRI_PLACES=95, PETRI_TRANSITIONS=116} [2023-08-29 16:33:47,948 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 10 predicate places. [2023-08-29 16:33:47,948 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 116 transitions, 806 flow [2023-08-29 16:33:47,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 170.6) internal successors, (1706), 10 states have internal predecessors, (1706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:47,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:47,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:47,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 16:33:47,949 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:47,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:47,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1292095313, now seen corresponding path program 2 times [2023-08-29 16:33:47,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:47,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16464595] [2023-08-29 16:33:47,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:47,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:48,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:48,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16464595] [2023-08-29 16:33:48,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16464595] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:48,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:48,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:33:48,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015858836] [2023-08-29 16:33:48,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:48,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:33:48,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:48,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:33:48,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:33:49,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:33:49,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 116 transitions, 806 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:49,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:49,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:33:49,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:50,830 INFO L130 PetriNetUnfolder]: 1274/2399 cut-off events. [2023-08-29 16:33:50,830 INFO L131 PetriNetUnfolder]: For 5941/5941 co-relation queries the response was YES. [2023-08-29 16:33:50,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9247 conditions, 2399 events. 1274/2399 cut-off events. For 5941/5941 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 12830 event pairs, 482 based on Foata normal form. 24/2395 useless extension candidates. Maximal degree in co-relation 9228. Up to 1518 conditions per place. [2023-08-29 16:33:50,844 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 105 selfloop transitions, 53 changer transitions 0/176 dead transitions. [2023-08-29 16:33:50,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 176 transitions, 1437 flow [2023-08-29 16:33:50,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:33:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:33:50,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1638 transitions. [2023-08-29 16:33:50,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42823529411764705 [2023-08-29 16:33:50,849 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1638 transitions. [2023-08-29 16:33:50,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1638 transitions. [2023-08-29 16:33:50,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:50,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1638 transitions. [2023-08-29 16:33:50,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 182.0) internal successors, (1638), 9 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:50,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:50,858 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:50,859 INFO L175 Difference]: Start difference. First operand has 95 places, 116 transitions, 806 flow. Second operand 9 states and 1638 transitions. [2023-08-29 16:33:50,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 176 transitions, 1437 flow [2023-08-29 16:33:50,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 176 transitions, 1425 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-29 16:33:50,874 INFO L231 Difference]: Finished difference. Result has 103 places, 130 transitions, 1149 flow [2023-08-29 16:33:50,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1149, PETRI_PLACES=103, PETRI_TRANSITIONS=130} [2023-08-29 16:33:50,875 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 18 predicate places. [2023-08-29 16:33:50,875 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 130 transitions, 1149 flow [2023-08-29 16:33:50,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:50,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:50,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:50,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 16:33:50,877 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:50,877 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:50,877 INFO L85 PathProgramCache]: Analyzing trace with hash -566180736, now seen corresponding path program 1 times [2023-08-29 16:33:50,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:50,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079950020] [2023-08-29 16:33:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:50,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:51,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:51,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079950020] [2023-08-29 16:33:51,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079950020] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:51,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:51,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:33:51,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383797336] [2023-08-29 16:33:51,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:51,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:33:51,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:51,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:33:51,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:33:52,084 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:33:52,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 130 transitions, 1149 flow. Second operand has 10 states, 10 states have (on average 170.6) internal successors, (1706), 10 states have internal predecessors, (1706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:52,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:52,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:33:52,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:52,987 INFO L130 PetriNetUnfolder]: 1498/2777 cut-off events. [2023-08-29 16:33:52,988 INFO L131 PetriNetUnfolder]: For 10327/10327 co-relation queries the response was YES. [2023-08-29 16:33:52,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12022 conditions, 2777 events. 1498/2777 cut-off events. For 10327/10327 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 15452 event pairs, 131 based on Foata normal form. 24/2773 useless extension candidates. Maximal degree in co-relation 12000. Up to 1493 conditions per place. [2023-08-29 16:33:53,003 INFO L137 encePairwiseOnDemand]: 412/425 looper letters, 200 selfloop transitions, 54 changer transitions 0/272 dead transitions. [2023-08-29 16:33:53,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 272 transitions, 2829 flow [2023-08-29 16:33:53,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:33:53,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:33:53,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1821 transitions. [2023-08-29 16:33:53,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4284705882352941 [2023-08-29 16:33:53,009 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1821 transitions. [2023-08-29 16:33:53,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1821 transitions. [2023-08-29 16:33:53,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:53,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1821 transitions. [2023-08-29 16:33:53,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.1) internal successors, (1821), 10 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:53,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:53,019 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:53,020 INFO L175 Difference]: Start difference. First operand has 103 places, 130 transitions, 1149 flow. Second operand 10 states and 1821 transitions. [2023-08-29 16:33:53,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 272 transitions, 2829 flow [2023-08-29 16:33:53,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 272 transitions, 2748 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-29 16:33:53,048 INFO L231 Difference]: Finished difference. Result has 113 places, 179 transitions, 1855 flow [2023-08-29 16:33:53,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1855, PETRI_PLACES=113, PETRI_TRANSITIONS=179} [2023-08-29 16:33:53,049 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 28 predicate places. [2023-08-29 16:33:53,049 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 179 transitions, 1855 flow [2023-08-29 16:33:53,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 170.6) internal successors, (1706), 10 states have internal predecessors, (1706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:53,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:53,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:53,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 16:33:53,050 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:53,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:53,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1292100614, now seen corresponding path program 2 times [2023-08-29 16:33:53,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:53,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727298981] [2023-08-29 16:33:53,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:53,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:53,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:53,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727298981] [2023-08-29 16:33:53,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727298981] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:53,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:53,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:33:53,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506872512] [2023-08-29 16:33:53,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:53,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:33:53,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:53,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:33:53,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:33:54,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:33:54,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 179 transitions, 1855 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:54,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:54,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:33:54,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:55,745 INFO L130 PetriNetUnfolder]: 1617/3077 cut-off events. [2023-08-29 16:33:55,745 INFO L131 PetriNetUnfolder]: For 16030/16032 co-relation queries the response was YES. [2023-08-29 16:33:55,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14823 conditions, 3077 events. 1617/3077 cut-off events. For 16030/16032 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 17833 event pairs, 383 based on Foata normal form. 25/3065 useless extension candidates. Maximal degree in co-relation 14795. Up to 1958 conditions per place. [2023-08-29 16:33:55,764 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 148 selfloop transitions, 90 changer transitions 0/256 dead transitions. [2023-08-29 16:33:55,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 256 transitions, 2949 flow [2023-08-29 16:33:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:33:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:33:55,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1643 transitions. [2023-08-29 16:33:55,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4295424836601307 [2023-08-29 16:33:55,769 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1643 transitions. [2023-08-29 16:33:55,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1643 transitions. [2023-08-29 16:33:55,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:55,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1643 transitions. [2023-08-29 16:33:55,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 182.55555555555554) internal successors, (1643), 9 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:55,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:55,778 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:55,779 INFO L175 Difference]: Start difference. First operand has 113 places, 179 transitions, 1855 flow. Second operand 9 states and 1643 transitions. [2023-08-29 16:33:55,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 256 transitions, 2949 flow [2023-08-29 16:33:55,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 256 transitions, 2936 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-29 16:33:55,824 INFO L231 Difference]: Finished difference. Result has 122 places, 203 transitions, 2560 flow [2023-08-29 16:33:55,824 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=1846, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2560, PETRI_PLACES=122, PETRI_TRANSITIONS=203} [2023-08-29 16:33:55,824 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 37 predicate places. [2023-08-29 16:33:55,824 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 203 transitions, 2560 flow [2023-08-29 16:33:55,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:55,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:55,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:55,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 16:33:55,826 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:55,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:55,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2140526121, now seen corresponding path program 3 times [2023-08-29 16:33:55,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:55,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934268114] [2023-08-29 16:33:55,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:55,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:56,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:56,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:56,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934268114] [2023-08-29 16:33:56,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934268114] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:56,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:56,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:33:56,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031689901] [2023-08-29 16:33:56,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:56,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:33:56,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:56,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:33:56,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:33:57,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:33:57,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 203 transitions, 2560 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:57,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:33:57,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:33:57,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:33:58,718 INFO L130 PetriNetUnfolder]: 1964/3758 cut-off events. [2023-08-29 16:33:58,718 INFO L131 PetriNetUnfolder]: For 27481/27487 co-relation queries the response was YES. [2023-08-29 16:33:58,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19731 conditions, 3758 events. 1964/3758 cut-off events. For 27481/27487 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 23150 event pairs, 546 based on Foata normal form. 26/3737 useless extension candidates. Maximal degree in co-relation 19700. Up to 1961 conditions per place. [2023-08-29 16:33:58,742 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 186 selfloop transitions, 136 changer transitions 0/340 dead transitions. [2023-08-29 16:33:58,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 340 transitions, 4848 flow [2023-08-29 16:33:58,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:33:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:33:58,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1821 transitions. [2023-08-29 16:33:58,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4284705882352941 [2023-08-29 16:33:58,748 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1821 transitions. [2023-08-29 16:33:58,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1821 transitions. [2023-08-29 16:33:58,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:33:58,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1821 transitions. [2023-08-29 16:33:58,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.1) internal successors, (1821), 10 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:58,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:58,757 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:58,758 INFO L175 Difference]: Start difference. First operand has 122 places, 203 transitions, 2560 flow. Second operand 10 states and 1821 transitions. [2023-08-29 16:33:58,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 340 transitions, 4848 flow [2023-08-29 16:33:58,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 340 transitions, 4749 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-29 16:33:58,842 INFO L231 Difference]: Finished difference. Result has 132 places, 269 transitions, 4097 flow [2023-08-29 16:33:58,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=2501, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4097, PETRI_PLACES=132, PETRI_TRANSITIONS=269} [2023-08-29 16:33:58,843 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 47 predicate places. [2023-08-29 16:33:58,843 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 269 transitions, 4097 flow [2023-08-29 16:33:58,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:33:58,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:33:58,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:33:58,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 16:33:58,844 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:33:58,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:33:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1298034293, now seen corresponding path program 4 times [2023-08-29 16:33:58,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:33:58,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496392933] [2023-08-29 16:33:58,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:33:58,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:33:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:33:59,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:33:59,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:33:59,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496392933] [2023-08-29 16:33:59,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496392933] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:33:59,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:33:59,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:33:59,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368781590] [2023-08-29 16:33:59,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:33:59,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:33:59,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:33:59,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:33:59,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:34:00,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:00,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 269 transitions, 4097 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:00,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:00,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:00,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:02,062 INFO L130 PetriNetUnfolder]: 2140/4175 cut-off events. [2023-08-29 16:34:02,062 INFO L131 PetriNetUnfolder]: For 39429/39435 co-relation queries the response was YES. [2023-08-29 16:34:02,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23925 conditions, 4175 events. 2140/4175 cut-off events. For 39429/39435 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 27029 event pairs, 677 based on Foata normal form. 26/4141 useless extension candidates. Maximal degree in co-relation 23888. Up to 2531 conditions per place. [2023-08-29 16:34:02,088 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 180 selfloop transitions, 158 changer transitions 0/356 dead transitions. [2023-08-29 16:34:02,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 356 transitions, 5705 flow [2023-08-29 16:34:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:34:02,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:34:02,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1817 transitions. [2023-08-29 16:34:02,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4275294117647059 [2023-08-29 16:34:02,094 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1817 transitions. [2023-08-29 16:34:02,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1817 transitions. [2023-08-29 16:34:02,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:02,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1817 transitions. [2023-08-29 16:34:02,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 181.7) internal successors, (1817), 10 states have internal predecessors, (1817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:02,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:02,102 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:02,103 INFO L175 Difference]: Start difference. First operand has 132 places, 269 transitions, 4097 flow. Second operand 10 states and 1817 transitions. [2023-08-29 16:34:02,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 356 transitions, 5705 flow [2023-08-29 16:34:02,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 356 transitions, 5587 flow, removed 51 selfloop flow, removed 3 redundant places. [2023-08-29 16:34:02,225 INFO L231 Difference]: Finished difference. Result has 143 places, 301 transitions, 5249 flow [2023-08-29 16:34:02,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=3993, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5249, PETRI_PLACES=143, PETRI_TRANSITIONS=301} [2023-08-29 16:34:02,226 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 58 predicate places. [2023-08-29 16:34:02,226 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 301 transitions, 5249 flow [2023-08-29 16:34:02,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:02,227 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:02,227 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:02,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 16:34:02,227 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:02,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:02,228 INFO L85 PathProgramCache]: Analyzing trace with hash -2011294924, now seen corresponding path program 3 times [2023-08-29 16:34:02,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:02,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499272450] [2023-08-29 16:34:02,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:02,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:02,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:02,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499272450] [2023-08-29 16:34:02,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499272450] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:02,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:02,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:34:02,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355510238] [2023-08-29 16:34:02,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:02,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:34:02,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:02,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:34:02,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:34:03,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:03,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 301 transitions, 5249 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:03,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:03,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:03,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:05,202 INFO L130 PetriNetUnfolder]: 2487/4851 cut-off events. [2023-08-29 16:34:05,202 INFO L131 PetriNetUnfolder]: For 58826/58828 co-relation queries the response was YES. [2023-08-29 16:34:05,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29710 conditions, 4851 events. 2487/4851 cut-off events. For 58826/58828 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 32567 event pairs, 575 based on Foata normal form. 25/4806 useless extension candidates. Maximal degree in co-relation 29669. Up to 2634 conditions per place. [2023-08-29 16:34:05,230 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 253 selfloop transitions, 211 changer transitions 0/482 dead transitions. [2023-08-29 16:34:05,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 482 transitions, 9099 flow [2023-08-29 16:34:05,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:34:05,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:34:05,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1826 transitions. [2023-08-29 16:34:05,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42964705882352944 [2023-08-29 16:34:05,236 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1826 transitions. [2023-08-29 16:34:05,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1826 transitions. [2023-08-29 16:34:05,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:05,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1826 transitions. [2023-08-29 16:34:05,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.6) internal successors, (1826), 10 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:05,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:05,244 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:05,245 INFO L175 Difference]: Start difference. First operand has 143 places, 301 transitions, 5249 flow. Second operand 10 states and 1826 transitions. [2023-08-29 16:34:05,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 482 transitions, 9099 flow [2023-08-29 16:34:05,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 482 transitions, 8962 flow, removed 26 selfloop flow, removed 4 redundant places. [2023-08-29 16:34:05,422 INFO L231 Difference]: Finished difference. Result has 154 places, 395 transitions, 7908 flow [2023-08-29 16:34:05,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=5164, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7908, PETRI_PLACES=154, PETRI_TRANSITIONS=395} [2023-08-29 16:34:05,423 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 69 predicate places. [2023-08-29 16:34:05,423 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 395 transitions, 7908 flow [2023-08-29 16:34:05,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:05,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:05,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:05,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 16:34:05,424 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:05,424 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:05,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1298183744, now seen corresponding path program 4 times [2023-08-29 16:34:05,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:05,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731776238] [2023-08-29 16:34:05,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:05,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:05,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:05,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:05,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731776238] [2023-08-29 16:34:05,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731776238] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:05,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:05,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:34:05,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998622677] [2023-08-29 16:34:05,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:05,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:34:05,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:05,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:34:05,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:34:06,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:06,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 395 transitions, 7908 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:06,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:06,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:06,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:09,259 INFO L130 PetriNetUnfolder]: 2661/5212 cut-off events. [2023-08-29 16:34:09,259 INFO L131 PetriNetUnfolder]: For 78256/78262 co-relation queries the response was YES. [2023-08-29 16:34:09,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34760 conditions, 5212 events. 2661/5212 cut-off events. For 78256/78262 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 35791 event pairs, 674 based on Foata normal form. 26/5163 useless extension candidates. Maximal degree in co-relation 34713. Up to 3207 conditions per place. [2023-08-29 16:34:09,293 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 226 selfloop transitions, 258 changer transitions 0/502 dead transitions. [2023-08-29 16:34:09,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 502 transitions, 10477 flow [2023-08-29 16:34:09,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:34:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:34:09,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1822 transitions. [2023-08-29 16:34:09,297 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42870588235294116 [2023-08-29 16:34:09,297 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1822 transitions. [2023-08-29 16:34:09,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1822 transitions. [2023-08-29 16:34:09,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:09,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1822 transitions. [2023-08-29 16:34:09,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.2) internal successors, (1822), 10 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:09,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:09,307 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:09,307 INFO L175 Difference]: Start difference. First operand has 154 places, 395 transitions, 7908 flow. Second operand 10 states and 1822 transitions. [2023-08-29 16:34:09,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 502 transitions, 10477 flow [2023-08-29 16:34:09,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 502 transitions, 10338 flow, removed 58 selfloop flow, removed 3 redundant places. [2023-08-29 16:34:09,555 INFO L231 Difference]: Finished difference. Result has 165 places, 444 transitions, 10031 flow [2023-08-29 16:34:09,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=7783, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10031, PETRI_PLACES=165, PETRI_TRANSITIONS=444} [2023-08-29 16:34:09,556 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 80 predicate places. [2023-08-29 16:34:09,556 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 444 transitions, 10031 flow [2023-08-29 16:34:09,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:09,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:09,556 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:09,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-29 16:34:09,556 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:09,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:09,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1559897183, now seen corresponding path program 5 times [2023-08-29 16:34:09,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:09,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135746679] [2023-08-29 16:34:09,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:09,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:10,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:10,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:10,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135746679] [2023-08-29 16:34:10,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135746679] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:10,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:10,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:34:10,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229150977] [2023-08-29 16:34:10,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:10,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:34:10,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:10,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:34:10,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:34:11,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:11,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 444 transitions, 10031 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:11,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:11,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:11,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:13,225 INFO L130 PetriNetUnfolder]: 2697/5374 cut-off events. [2023-08-29 16:34:13,225 INFO L131 PetriNetUnfolder]: For 97800/97814 co-relation queries the response was YES. [2023-08-29 16:34:13,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37536 conditions, 5374 events. 2697/5374 cut-off events. For 97800/97814 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 37727 event pairs, 843 based on Foata normal form. 28/5319 useless extension candidates. Maximal degree in co-relation 37485. Up to 3048 conditions per place. [2023-08-29 16:34:13,260 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 259 selfloop transitions, 275 changer transitions 0/552 dead transitions. [2023-08-29 16:34:13,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 552 transitions, 12778 flow [2023-08-29 16:34:13,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:34:13,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:34:13,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1819 transitions. [2023-08-29 16:34:13,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.428 [2023-08-29 16:34:13,264 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1819 transitions. [2023-08-29 16:34:13,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1819 transitions. [2023-08-29 16:34:13,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:13,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1819 transitions. [2023-08-29 16:34:13,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 181.9) internal successors, (1819), 10 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:13,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:13,272 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:13,272 INFO L175 Difference]: Start difference. First operand has 165 places, 444 transitions, 10031 flow. Second operand 10 states and 1819 transitions. [2023-08-29 16:34:13,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 552 transitions, 12778 flow [2023-08-29 16:34:13,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 552 transitions, 12601 flow, removed 46 selfloop flow, removed 4 redundant places. [2023-08-29 16:34:13,592 INFO L231 Difference]: Finished difference. Result has 175 places, 496 transitions, 12125 flow [2023-08-29 16:34:13,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=9873, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=444, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12125, PETRI_PLACES=175, PETRI_TRANSITIONS=496} [2023-08-29 16:34:13,593 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 90 predicate places. [2023-08-29 16:34:13,593 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 496 transitions, 12125 flow [2023-08-29 16:34:13,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:13,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:13,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:13,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-29 16:34:13,594 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:13,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:13,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1564515284, now seen corresponding path program 5 times [2023-08-29 16:34:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:13,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521155751] [2023-08-29 16:34:13,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:13,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:14,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:14,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521155751] [2023-08-29 16:34:14,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521155751] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:14,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:14,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:34:14,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93387363] [2023-08-29 16:34:14,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:14,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:34:14,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:14,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:34:14,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:34:14,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:14,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 496 transitions, 12125 flow. Second operand has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:14,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:14,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:14,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:17,227 INFO L130 PetriNetUnfolder]: 2722/5544 cut-off events. [2023-08-29 16:34:17,227 INFO L131 PetriNetUnfolder]: For 112531/112537 co-relation queries the response was YES. [2023-08-29 16:34:17,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40393 conditions, 5544 events. 2722/5544 cut-off events. For 112531/112537 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 39899 event pairs, 641 based on Foata normal form. 26/5474 useless extension candidates. Maximal degree in co-relation 40337. Up to 3053 conditions per place. [2023-08-29 16:34:17,266 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 284 selfloop transitions, 309 changer transitions 0/611 dead transitions. [2023-08-29 16:34:17,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 611 transitions, 15251 flow [2023-08-29 16:34:17,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:34:17,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:34:17,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1824 transitions. [2023-08-29 16:34:17,271 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42917647058823527 [2023-08-29 16:34:17,271 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1824 transitions. [2023-08-29 16:34:17,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1824 transitions. [2023-08-29 16:34:17,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:17,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1824 transitions. [2023-08-29 16:34:17,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 182.4) internal successors, (1824), 10 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:17,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:17,279 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:17,280 INFO L175 Difference]: Start difference. First operand has 175 places, 496 transitions, 12125 flow. Second operand 10 states and 1824 transitions. [2023-08-29 16:34:17,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 611 transitions, 15251 flow [2023-08-29 16:34:17,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 611 transitions, 15100 flow, removed 73 selfloop flow, removed 2 redundant places. [2023-08-29 16:34:17,637 INFO L231 Difference]: Finished difference. Result has 187 places, 553 transitions, 14594 flow [2023-08-29 16:34:17,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=11994, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14594, PETRI_PLACES=187, PETRI_TRANSITIONS=553} [2023-08-29 16:34:17,638 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 102 predicate places. [2023-08-29 16:34:17,638 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 553 transitions, 14594 flow [2023-08-29 16:34:17,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 170.45454545454547) internal successors, (1875), 11 states have internal predecessors, (1875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:17,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:17,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:17,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-29 16:34:17,639 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:17,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:17,639 INFO L85 PathProgramCache]: Analyzing trace with hash 490331641, now seen corresponding path program 1 times [2023-08-29 16:34:17,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:17,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763668466] [2023-08-29 16:34:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:17,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:18,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:18,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:18,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763668466] [2023-08-29 16:34:18,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763668466] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:18,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:18,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:34:18,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392728468] [2023-08-29 16:34:18,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:18,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:34:18,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:18,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:34:18,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:34:19,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:19,498 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 553 transitions, 14594 flow. Second operand has 14 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) [2023-08-29 16:34:19,498 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:19,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:19,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:23,191 INFO L130 PetriNetUnfolder]: 4632/9389 cut-off events. [2023-08-29 16:34:23,191 INFO L131 PetriNetUnfolder]: For 205322/205342 co-relation queries the response was YES. [2023-08-29 16:34:23,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69528 conditions, 9389 events. 4632/9389 cut-off events. For 205322/205342 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 75102 event pairs, 730 based on Foata normal form. 22/9253 useless extension candidates. Maximal degree in co-relation 69467. Up to 3735 conditions per place. [2023-08-29 16:34:23,277 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 673 selfloop transitions, 196 changer transitions 0/887 dead transitions. [2023-08-29 16:34:23,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 887 transitions, 22727 flow [2023-08-29 16:34:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 16:34:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 16:34:23,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2561 transitions. [2023-08-29 16:34:23,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4304201680672269 [2023-08-29 16:34:23,280 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2561 transitions. [2023-08-29 16:34:23,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2561 transitions. [2023-08-29 16:34:23,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:23,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2561 transitions. [2023-08-29 16:34:23,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 182.92857142857142) internal successors, (2561), 14 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:23,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:23,291 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:23,291 INFO L175 Difference]: Start difference. First operand has 187 places, 553 transitions, 14594 flow. Second operand 14 states and 2561 transitions. [2023-08-29 16:34:23,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 887 transitions, 22727 flow [2023-08-29 16:34:24,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 887 transitions, 22518 flow, removed 79 selfloop flow, removed 3 redundant places. [2023-08-29 16:34:24,410 INFO L231 Difference]: Finished difference. Result has 206 places, 639 transitions, 17571 flow [2023-08-29 16:34:24,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=14450, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17571, PETRI_PLACES=206, PETRI_TRANSITIONS=639} [2023-08-29 16:34:24,411 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 121 predicate places. [2023-08-29 16:34:24,411 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 639 transitions, 17571 flow [2023-08-29 16:34:24,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:34:24,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:24,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:24,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-29 16:34:24,412 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:24,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:24,413 INFO L85 PathProgramCache]: Analyzing trace with hash 649401095, now seen corresponding path program 2 times [2023-08-29 16:34:24,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:24,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533800650] [2023-08-29 16:34:24,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:24,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:25,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:25,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533800650] [2023-08-29 16:34:25,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533800650] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:25,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:25,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:34:25,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912038876] [2023-08-29 16:34:25,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:25,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:34:25,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:25,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:34:25,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:34:26,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:26,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 639 transitions, 17571 flow. Second operand has 14 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) [2023-08-29 16:34:26,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:26,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:26,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:29,594 INFO L130 PetriNetUnfolder]: 4783/9874 cut-off events. [2023-08-29 16:34:29,594 INFO L131 PetriNetUnfolder]: For 247277/247282 co-relation queries the response was YES. [2023-08-29 16:34:29,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75602 conditions, 9874 events. 4783/9874 cut-off events. For 247277/247282 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 80657 event pairs, 789 based on Foata normal form. 17/9709 useless extension candidates. Maximal degree in co-relation 75532. Up to 4826 conditions per place. [2023-08-29 16:34:29,695 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 541 selfloop transitions, 206 changer transitions 0/765 dead transitions. [2023-08-29 16:34:29,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 765 transitions, 20722 flow [2023-08-29 16:34:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-29 16:34:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-29 16:34:29,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2349 transitions. [2023-08-29 16:34:29,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42515837104072396 [2023-08-29 16:34:29,698 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2349 transitions. [2023-08-29 16:34:29,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2349 transitions. [2023-08-29 16:34:29,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:29,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2349 transitions. [2023-08-29 16:34:29,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 180.69230769230768) internal successors, (2349), 13 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:29,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 425.0) internal successors, (5950), 14 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:29,708 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 425.0) internal successors, (5950), 14 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:29,708 INFO L175 Difference]: Start difference. First operand has 206 places, 639 transitions, 17571 flow. Second operand 13 states and 2349 transitions. [2023-08-29 16:34:29,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 765 transitions, 20722 flow [2023-08-29 16:34:31,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 765 transitions, 20601 flow, removed 27 selfloop flow, removed 4 redundant places. [2023-08-29 16:34:31,492 INFO L231 Difference]: Finished difference. Result has 218 places, 664 transitions, 18895 flow [2023-08-29 16:34:31,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=17465, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18895, PETRI_PLACES=218, PETRI_TRANSITIONS=664} [2023-08-29 16:34:31,493 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 133 predicate places. [2023-08-29 16:34:31,493 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 664 transitions, 18895 flow [2023-08-29 16:34:31,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:34:31,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:31,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:31,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-29 16:34:31,494 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:31,494 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:31,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1416192713, now seen corresponding path program 3 times [2023-08-29 16:34:31,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:31,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031820368] [2023-08-29 16:34:31,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:31,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:32,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:32,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031820368] [2023-08-29 16:34:32,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031820368] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:32,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:32,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:34:32,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410684688] [2023-08-29 16:34:32,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:32,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:34:32,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:32,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:34:32,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:34:33,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:33,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 664 transitions, 18895 flow. Second operand has 14 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) [2023-08-29 16:34:33,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:33,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:33,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:37,236 INFO L130 PetriNetUnfolder]: 4735/9734 cut-off events. [2023-08-29 16:34:37,237 INFO L131 PetriNetUnfolder]: For 275418/275443 co-relation queries the response was YES. [2023-08-29 16:34:37,294 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77283 conditions, 9734 events. 4735/9734 cut-off events. For 275418/275443 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 79096 event pairs, 611 based on Foata normal form. 39/9601 useless extension candidates. Maximal degree in co-relation 77209. Up to 3884 conditions per place. [2023-08-29 16:34:37,332 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 680 selfloop transitions, 236 changer transitions 0/934 dead transitions. [2023-08-29 16:34:37,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 934 transitions, 25159 flow [2023-08-29 16:34:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-29 16:34:37,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-29 16:34:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3602 transitions. [2023-08-29 16:34:37,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42376470588235293 [2023-08-29 16:34:37,335 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3602 transitions. [2023-08-29 16:34:37,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3602 transitions. [2023-08-29 16:34:37,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:37,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3602 transitions. [2023-08-29 16:34:37,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 180.1) internal successors, (3602), 20 states have internal predecessors, (3602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:37,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 425.0) internal successors, (8925), 21 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:37,346 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 425.0) internal successors, (8925), 21 states have internal predecessors, (8925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:37,347 INFO L175 Difference]: Start difference. First operand has 218 places, 664 transitions, 18895 flow. Second operand 20 states and 3602 transitions. [2023-08-29 16:34:37,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 934 transitions, 25159 flow [2023-08-29 16:34:38,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 934 transitions, 25067 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-08-29 16:34:38,753 INFO L231 Difference]: Finished difference. Result has 240 places, 708 transitions, 20494 flow [2023-08-29 16:34:38,753 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=18830, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20494, PETRI_PLACES=240, PETRI_TRANSITIONS=708} [2023-08-29 16:34:38,753 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 155 predicate places. [2023-08-29 16:34:38,754 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 708 transitions, 20494 flow [2023-08-29 16:34:38,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:34:38,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:38,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:38,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-29 16:34:38,754 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:38,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:38,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1349300429, now seen corresponding path program 4 times [2023-08-29 16:34:38,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:38,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565046288] [2023-08-29 16:34:38,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:38,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:39,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:39,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565046288] [2023-08-29 16:34:39,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565046288] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:39,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:39,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:34:39,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859868285] [2023-08-29 16:34:39,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:39,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:34:39,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:39,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:34:39,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:34:40,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:40,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 708 transitions, 20494 flow. Second operand has 14 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) [2023-08-29 16:34:40,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:40,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:40,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:44,499 INFO L130 PetriNetUnfolder]: 4901/10254 cut-off events. [2023-08-29 16:34:44,499 INFO L131 PetriNetUnfolder]: For 314679/314684 co-relation queries the response was YES. [2023-08-29 16:34:44,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83473 conditions, 10254 events. 4901/10254 cut-off events. For 314679/314684 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 85483 event pairs, 719 based on Foata normal form. 17/10071 useless extension candidates. Maximal degree in co-relation 83390. Up to 4621 conditions per place. [2023-08-29 16:34:44,620 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 591 selfloop transitions, 224 changer transitions 0/833 dead transitions. [2023-08-29 16:34:44,621 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 833 transitions, 23774 flow [2023-08-29 16:34:44,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 16:34:44,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 16:34:44,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2527 transitions. [2023-08-29 16:34:44,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42470588235294116 [2023-08-29 16:34:44,623 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2527 transitions. [2023-08-29 16:34:44,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2527 transitions. [2023-08-29 16:34:44,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:44,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2527 transitions. [2023-08-29 16:34:44,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 180.5) internal successors, (2527), 14 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:44,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:44,630 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:44,631 INFO L175 Difference]: Start difference. First operand has 240 places, 708 transitions, 20494 flow. Second operand 14 states and 2527 transitions. [2023-08-29 16:34:44,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 833 transitions, 23774 flow [2023-08-29 16:34:46,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 833 transitions, 23576 flow, removed 46 selfloop flow, removed 5 redundant places. [2023-08-29 16:34:46,585 INFO L231 Difference]: Finished difference. Result has 253 places, 725 transitions, 21618 flow [2023-08-29 16:34:46,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=20314, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=708, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=207, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=21618, PETRI_PLACES=253, PETRI_TRANSITIONS=725} [2023-08-29 16:34:46,586 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 168 predicate places. [2023-08-29 16:34:46,586 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 725 transitions, 21618 flow [2023-08-29 16:34:46,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:34:46,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:46,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:46,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-29 16:34:46,587 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:46,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:46,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1112771525, now seen corresponding path program 5 times [2023-08-29 16:34:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:46,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523226543] [2023-08-29 16:34:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:47,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:47,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523226543] [2023-08-29 16:34:47,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523226543] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:47,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:47,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:34:47,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269197554] [2023-08-29 16:34:47,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:47,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:34:47,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:47,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:34:47,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:34:48,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:48,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 725 transitions, 21618 flow. Second operand has 14 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) [2023-08-29 16:34:48,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:48,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:48,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:34:53,629 INFO L130 PetriNetUnfolder]: 5134/10780 cut-off events. [2023-08-29 16:34:53,629 INFO L131 PetriNetUnfolder]: For 365967/366009 co-relation queries the response was YES. [2023-08-29 16:34:53,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90556 conditions, 10780 events. 5134/10780 cut-off events. For 365967/366009 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 91394 event pairs, 875 based on Foata normal form. 27/10606 useless extension candidates. Maximal degree in co-relation 90469. Up to 4335 conditions per place. [2023-08-29 16:34:53,774 INFO L137 encePairwiseOnDemand]: 408/425 looper letters, 565 selfloop transitions, 397 changer transitions 0/980 dead transitions. [2023-08-29 16:34:53,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 980 transitions, 28727 flow [2023-08-29 16:34:53,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 16:34:53,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 16:34:53,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2917 transitions. [2023-08-29 16:34:53,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4289705882352941 [2023-08-29 16:34:53,777 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2917 transitions. [2023-08-29 16:34:53,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2917 transitions. [2023-08-29 16:34:53,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:34:53,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2917 transitions. [2023-08-29 16:34:53,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 182.3125) internal successors, (2917), 16 states have internal predecessors, (2917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:53,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 425.0) internal successors, (7225), 17 states have internal predecessors, (7225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:53,784 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 425.0) internal successors, (7225), 17 states have internal predecessors, (7225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:34:53,785 INFO L175 Difference]: Start difference. First operand has 253 places, 725 transitions, 21618 flow. Second operand 16 states and 2917 transitions. [2023-08-29 16:34:53,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 980 transitions, 28727 flow [2023-08-29 16:34:56,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 980 transitions, 28605 flow, removed 21 selfloop flow, removed 6 redundant places. [2023-08-29 16:34:56,067 INFO L231 Difference]: Finished difference. Result has 270 places, 810 transitions, 25984 flow [2023-08-29 16:34:56,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=21514, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=313, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25984, PETRI_PLACES=270, PETRI_TRANSITIONS=810} [2023-08-29 16:34:56,068 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 185 predicate places. [2023-08-29 16:34:56,068 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 810 transitions, 25984 flow [2023-08-29 16:34:56,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:34:56,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:34:56,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:34:56,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-29 16:34:56,069 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:34:56,069 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:34:56,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1836060945, now seen corresponding path program 6 times [2023-08-29 16:34:56,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:34:56,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63864642] [2023-08-29 16:34:56,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:34:56,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:34:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:34:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:34:56,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:34:56,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63864642] [2023-08-29 16:34:56,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63864642] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:34:56,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:34:56,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:34:56,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873362672] [2023-08-29 16:34:56,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:34:56,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:34:56,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:34:56,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:34:56,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:34:58,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:34:58,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 810 transitions, 25984 flow. Second operand has 14 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) [2023-08-29 16:34:58,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:34:58,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:34:58,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:02,492 INFO L130 PetriNetUnfolder]: 5338/11476 cut-off events. [2023-08-29 16:35:02,493 INFO L131 PetriNetUnfolder]: For 424089/424099 co-relation queries the response was YES. [2023-08-29 16:35:02,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97806 conditions, 11476 events. 5338/11476 cut-off events. For 424089/424099 co-relation queries the response was YES. Maximal size of possible extension queue 516. Compared 99786 event pairs, 836 based on Foata normal form. 18/11246 useless extension candidates. Maximal degree in co-relation 97711. Up to 4686 conditions per place. [2023-08-29 16:35:02,646 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 665 selfloop transitions, 265 changer transitions 0/948 dead transitions. [2023-08-29 16:35:02,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 948 transitions, 29908 flow [2023-08-29 16:35:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-29 16:35:02,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-29 16:35:02,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2705 transitions. [2023-08-29 16:35:02,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4243137254901961 [2023-08-29 16:35:02,649 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2705 transitions. [2023-08-29 16:35:02,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2705 transitions. [2023-08-29 16:35:02,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:02,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2705 transitions. [2023-08-29 16:35:02,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 180.33333333333334) internal successors, (2705), 15 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:02,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 425.0) internal successors, (6800), 16 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:02,658 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 425.0) internal successors, (6800), 16 states have internal predecessors, (6800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:02,658 INFO L175 Difference]: Start difference. First operand has 270 places, 810 transitions, 25984 flow. Second operand 15 states and 2705 transitions. [2023-08-29 16:35:02,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 948 transitions, 29908 flow [2023-08-29 16:35:05,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 948 transitions, 29216 flow, removed 87 selfloop flow, removed 4 redundant places. [2023-08-29 16:35:05,944 INFO L231 Difference]: Finished difference. Result has 287 places, 831 transitions, 26967 flow [2023-08-29 16:35:05,945 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=25352, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=810, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=26967, PETRI_PLACES=287, PETRI_TRANSITIONS=831} [2023-08-29 16:35:05,946 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 202 predicate places. [2023-08-29 16:35:05,946 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 831 transitions, 26967 flow [2023-08-29 16:35:05,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:35:05,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:05,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:05,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-29 16:35:05,947 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:05,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1088810885, now seen corresponding path program 7 times [2023-08-29 16:35:05,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:05,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822791939] [2023-08-29 16:35:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:05,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:35:06,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:06,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822791939] [2023-08-29 16:35:06,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822791939] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:06,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:06,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:35:06,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505218897] [2023-08-29 16:35:06,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:06,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:35:06,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:06,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:35:06,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:35:07,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:35:07,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 831 transitions, 26967 flow. Second operand has 14 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) [2023-08-29 16:35:07,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:07,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:35:07,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:13,895 INFO L130 PetriNetUnfolder]: 5701/12240 cut-off events. [2023-08-29 16:35:13,896 INFO L131 PetriNetUnfolder]: For 485788/485848 co-relation queries the response was YES. [2023-08-29 16:35:13,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106450 conditions, 12240 events. 5701/12240 cut-off events. For 485788/485848 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 108473 event pairs, 1089 based on Foata normal form. 33/12033 useless extension candidates. Maximal degree in co-relation 106348. Up to 4958 conditions per place. [2023-08-29 16:35:14,045 INFO L137 encePairwiseOnDemand]: 408/425 looper letters, 749 selfloop transitions, 275 changer transitions 0/1042 dead transitions. [2023-08-29 16:35:14,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 1042 transitions, 32890 flow [2023-08-29 16:35:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 16:35:14,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 16:35:14,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2553 transitions. [2023-08-29 16:35:14,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4290756302521008 [2023-08-29 16:35:14,049 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2553 transitions. [2023-08-29 16:35:14,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2553 transitions. [2023-08-29 16:35:14,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:14,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2553 transitions. [2023-08-29 16:35:14,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 182.35714285714286) internal successors, (2553), 14 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:14,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:14,059 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:14,059 INFO L175 Difference]: Start difference. First operand has 287 places, 831 transitions, 26967 flow. Second operand 14 states and 2553 transitions. [2023-08-29 16:35:14,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 1042 transitions, 32890 flow [2023-08-29 16:35:17,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 1042 transitions, 32718 flow, removed 28 selfloop flow, removed 8 redundant places. [2023-08-29 16:35:17,578 INFO L231 Difference]: Finished difference. Result has 299 places, 878 transitions, 29579 flow [2023-08-29 16:35:17,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=26810, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=831, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29579, PETRI_PLACES=299, PETRI_TRANSITIONS=878} [2023-08-29 16:35:17,580 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 214 predicate places. [2023-08-29 16:35:17,580 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 878 transitions, 29579 flow [2023-08-29 16:35:17,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:35:17,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:17,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:17,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-29 16:35:17,581 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:17,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:17,582 INFO L85 PathProgramCache]: Analyzing trace with hash -278892335, now seen corresponding path program 8 times [2023-08-29 16:35:17,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:17,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967862592] [2023-08-29 16:35:17,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:17,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:35:18,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:18,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967862592] [2023-08-29 16:35:18,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967862592] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:18,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:18,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:35:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424387721] [2023-08-29 16:35:18,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:18,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:35:18,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:18,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:35:18,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:35:19,285 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:35:19,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 878 transitions, 29579 flow. Second operand has 14 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) [2023-08-29 16:35:19,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:19,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:35:19,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:25,443 INFO L130 PetriNetUnfolder]: 6003/13308 cut-off events. [2023-08-29 16:35:25,444 INFO L131 PetriNetUnfolder]: For 562041/562066 co-relation queries the response was YES. [2023-08-29 16:35:25,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115181 conditions, 13308 events. 6003/13308 cut-off events. For 562041/562066 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 122605 event pairs, 806 based on Foata normal form. 21/13013 useless extension candidates. Maximal degree in co-relation 115072. Up to 5262 conditions per place. [2023-08-29 16:35:25,622 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 643 selfloop transitions, 397 changer transitions 0/1058 dead transitions. [2023-08-29 16:35:25,622 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 1058 transitions, 34409 flow [2023-08-29 16:35:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-29 16:35:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-29 16:35:25,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 3938 transitions. [2023-08-29 16:35:25,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4211764705882353 [2023-08-29 16:35:25,625 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 3938 transitions. [2023-08-29 16:35:25,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 3938 transitions. [2023-08-29 16:35:25,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:25,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 3938 transitions. [2023-08-29 16:35:25,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 179.0) internal successors, (3938), 22 states have internal predecessors, (3938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:25,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 425.0) internal successors, (9775), 23 states have internal predecessors, (9775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:25,636 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 425.0) internal successors, (9775), 23 states have internal predecessors, (9775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:25,636 INFO L175 Difference]: Start difference. First operand has 299 places, 878 transitions, 29579 flow. Second operand 22 states and 3938 transitions. [2023-08-29 16:35:25,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 1058 transitions, 34409 flow [2023-08-29 16:35:29,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 1058 transitions, 34325 flow, removed 32 selfloop flow, removed 4 redundant places. [2023-08-29 16:35:29,777 INFO L231 Difference]: Finished difference. Result has 325 places, 946 transitions, 32799 flow [2023-08-29 16:35:29,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=29496, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=878, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=331, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=32799, PETRI_PLACES=325, PETRI_TRANSITIONS=946} [2023-08-29 16:35:29,778 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 240 predicate places. [2023-08-29 16:35:29,778 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 946 transitions, 32799 flow [2023-08-29 16:35:29,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:35:29,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:29,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:29,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-29 16:35:29,779 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:29,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:29,780 INFO L85 PathProgramCache]: Analyzing trace with hash -822517475, now seen corresponding path program 9 times [2023-08-29 16:35:29,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:29,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975341966] [2023-08-29 16:35:29,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:29,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:35:30,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:30,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975341966] [2023-08-29 16:35:30,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975341966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:30,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:30,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:35:30,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147711022] [2023-08-29 16:35:30,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:30,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:35:30,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:30,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:35:30,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:35:31,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:35:31,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 946 transitions, 32799 flow. Second operand has 14 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) [2023-08-29 16:35:31,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:31,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:35:31,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:38,539 INFO L130 PetriNetUnfolder]: 6180/13531 cut-off events. [2023-08-29 16:35:38,539 INFO L131 PetriNetUnfolder]: For 618564/618617 co-relation queries the response was YES. [2023-08-29 16:35:38,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122519 conditions, 13531 events. 6180/13531 cut-off events. For 618564/618617 co-relation queries the response was YES. Maximal size of possible extension queue 621. Compared 124183 event pairs, 1245 based on Foata normal form. 32/13271 useless extension candidates. Maximal degree in co-relation 122401. Up to 5434 conditions per place. [2023-08-29 16:35:38,709 INFO L137 encePairwiseOnDemand]: 408/425 looper letters, 802 selfloop transitions, 300 changer transitions 0/1120 dead transitions. [2023-08-29 16:35:38,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 1120 transitions, 37832 flow [2023-08-29 16:35:38,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 16:35:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 16:35:38,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2555 transitions. [2023-08-29 16:35:38,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4294117647058823 [2023-08-29 16:35:38,712 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2555 transitions. [2023-08-29 16:35:38,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2555 transitions. [2023-08-29 16:35:38,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:38,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2555 transitions. [2023-08-29 16:35:38,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 182.5) internal successors, (2555), 14 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:38,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:38,720 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:38,720 INFO L175 Difference]: Start difference. First operand has 325 places, 946 transitions, 32799 flow. Second operand 14 states and 2555 transitions. [2023-08-29 16:35:38,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 1120 transitions, 37832 flow [2023-08-29 16:35:43,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 1120 transitions, 37434 flow, removed 195 selfloop flow, removed 3 redundant places. [2023-08-29 16:35:43,922 INFO L231 Difference]: Finished difference. Result has 341 places, 971 transitions, 34421 flow [2023-08-29 16:35:43,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=32455, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=650, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=34421, PETRI_PLACES=341, PETRI_TRANSITIONS=971} [2023-08-29 16:35:43,923 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 256 predicate places. [2023-08-29 16:35:43,924 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 971 transitions, 34421 flow [2023-08-29 16:35:43,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:35:43,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:35:43,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:35:43,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-29 16:35:43,924 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:35:43,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:35:43,925 INFO L85 PathProgramCache]: Analyzing trace with hash -871147319, now seen corresponding path program 10 times [2023-08-29 16:35:43,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:35:43,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328346105] [2023-08-29 16:35:43,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:35:43,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:35:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:35:44,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:35:44,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:35:44,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328346105] [2023-08-29 16:35:44,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328346105] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:35:44,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:35:44,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:35:44,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887863157] [2023-08-29 16:35:44,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:35:44,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:35:44,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:35:44,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:35:44,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:35:45,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:35:45,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 971 transitions, 34421 flow. Second operand has 14 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) [2023-08-29 16:35:45,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:35:45,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:35:45,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:35:53,159 INFO L130 PetriNetUnfolder]: 7542/16470 cut-off events. [2023-08-29 16:35:53,159 INFO L131 PetriNetUnfolder]: For 805278/805326 co-relation queries the response was YES. [2023-08-29 16:35:53,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150902 conditions, 16470 events. 7542/16470 cut-off events. For 805278/805326 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 155441 event pairs, 1257 based on Foata normal form. 31/16141 useless extension candidates. Maximal degree in co-relation 150778. Up to 6658 conditions per place. [2023-08-29 16:35:53,358 INFO L137 encePairwiseOnDemand]: 408/425 looper letters, 963 selfloop transitions, 336 changer transitions 0/1317 dead transitions. [2023-08-29 16:35:53,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 1317 transitions, 45561 flow [2023-08-29 16:35:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-29 16:35:53,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-29 16:35:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2921 transitions. [2023-08-29 16:35:53,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42955882352941177 [2023-08-29 16:35:53,361 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2921 transitions. [2023-08-29 16:35:53,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2921 transitions. [2023-08-29 16:35:53,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:35:53,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2921 transitions. [2023-08-29 16:35:53,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 182.5625) internal successors, (2921), 16 states have internal predecessors, (2921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:53,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 425.0) internal successors, (7225), 17 states have internal predecessors, (7225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:53,370 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 425.0) internal successors, (7225), 17 states have internal predecessors, (7225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:35:53,370 INFO L175 Difference]: Start difference. First operand has 341 places, 971 transitions, 34421 flow. Second operand 16 states and 2921 transitions. [2023-08-29 16:35:53,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 1317 transitions, 45561 flow [2023-08-29 16:36:01,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 1317 transitions, 45241 flow, removed 58 selfloop flow, removed 7 redundant places. [2023-08-29 16:36:01,463 INFO L231 Difference]: Finished difference. Result has 358 places, 1059 transitions, 39230 flow [2023-08-29 16:36:01,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=34134, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=971, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=250, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=39230, PETRI_PLACES=358, PETRI_TRANSITIONS=1059} [2023-08-29 16:36:01,464 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 273 predicate places. [2023-08-29 16:36:01,464 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 1059 transitions, 39230 flow [2023-08-29 16:36:01,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:36:01,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:36:01,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:36:01,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-29 16:36:01,465 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:36:01,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:36:01,465 INFO L85 PathProgramCache]: Analyzing trace with hash 683015703, now seen corresponding path program 11 times [2023-08-29 16:36:01,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:36:01,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837009099] [2023-08-29 16:36:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:36:01,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:36:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:36:01,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:36:01,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:36:01,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837009099] [2023-08-29 16:36:01,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837009099] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:36:01,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:36:01,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-29 16:36:01,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520429544] [2023-08-29 16:36:01,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:36:01,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-29 16:36:01,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:36:01,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-29 16:36:01,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-08-29 16:36:03,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 425 [2023-08-29 16:36:03,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 1059 transitions, 39230 flow. Second operand has 14 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) [2023-08-29 16:36:03,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:36:03,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 425 [2023-08-29 16:36:03,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:36:11,313 INFO L130 PetriNetUnfolder]: 7517/16654 cut-off events. [2023-08-29 16:36:11,314 INFO L131 PetriNetUnfolder]: For 844118/844143 co-relation queries the response was YES. [2023-08-29 16:36:11,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153938 conditions, 16654 events. 7517/16654 cut-off events. For 844118/844143 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 158748 event pairs, 1277 based on Foata normal form. 21/16281 useless extension candidates. Maximal degree in co-relation 153805. Up to 6643 conditions per place. [2023-08-29 16:36:11,539 INFO L137 encePairwiseOnDemand]: 410/425 looper letters, 922 selfloop transitions, 323 changer transitions 0/1263 dead transitions. [2023-08-29 16:36:11,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 1263 transitions, 45671 flow [2023-08-29 16:36:11,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-29 16:36:11,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-29 16:36:11,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2539 transitions. [2023-08-29 16:36:11,541 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42672268907563027 [2023-08-29 16:36:11,541 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2539 transitions. [2023-08-29 16:36:11,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2539 transitions. [2023-08-29 16:36:11,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:36:11,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2539 transitions. [2023-08-29 16:36:11,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 181.35714285714286) internal successors, (2539), 14 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:11,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:11,548 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 425.0) internal successors, (6375), 15 states have internal predecessors, (6375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:11,548 INFO L175 Difference]: Start difference. First operand has 358 places, 1059 transitions, 39230 flow. Second operand 14 states and 2539 transitions. [2023-08-29 16:36:11,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 1263 transitions, 45671 flow [2023-08-29 16:36:19,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 1263 transitions, 45557 flow, removed 53 selfloop flow, removed 3 redundant places. [2023-08-29 16:36:19,853 INFO L231 Difference]: Finished difference. Result has 373 places, 1090 transitions, 41607 flow [2023-08-29 16:36:19,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=39078, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=291, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=736, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=41607, PETRI_PLACES=373, PETRI_TRANSITIONS=1090} [2023-08-29 16:36:19,855 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 288 predicate places. [2023-08-29 16:36:19,855 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 1090 transitions, 41607 flow [2023-08-29 16:36:19,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 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) [2023-08-29 16:36:19,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:36:19,856 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:36:19,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-29 16:36:19,856 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:36:19,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:36:19,856 INFO L85 PathProgramCache]: Analyzing trace with hash -540887489, now seen corresponding path program 1 times [2023-08-29 16:36:19,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:36:19,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510564651] [2023-08-29 16:36:19,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:36:19,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:36:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:36:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:36:20,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:36:20,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510564651] [2023-08-29 16:36:20,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510564651] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:36:20,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:36:20,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:36:20,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44670773] [2023-08-29 16:36:20,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:36:20,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:36:20,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:36:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:36:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:36:20,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 425 [2023-08-29 16:36:20,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 1090 transitions, 41607 flow. Second operand has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:20,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:36:20,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 425 [2023-08-29 16:36:20,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:36:26,343 INFO L130 PetriNetUnfolder]: 5495/14268 cut-off events. [2023-08-29 16:36:26,344 INFO L131 PetriNetUnfolder]: For 671087/672526 co-relation queries the response was YES. [2023-08-29 16:36:26,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130143 conditions, 14268 events. 5495/14268 cut-off events. For 671087/672526 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 150831 event pairs, 2614 based on Foata normal form. 102/13666 useless extension candidates. Maximal degree in co-relation 130004. Up to 10035 conditions per place. [2023-08-29 16:36:26,542 INFO L137 encePairwiseOnDemand]: 420/425 looper letters, 801 selfloop transitions, 4 changer transitions 0/1089 dead transitions. [2023-08-29 16:36:26,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1089 transitions, 43215 flow [2023-08-29 16:36:26,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:36:26,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:36:26,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1067 transitions. [2023-08-29 16:36:26,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41843137254901963 [2023-08-29 16:36:26,544 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1067 transitions. [2023-08-29 16:36:26,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1067 transitions. [2023-08-29 16:36:26,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:36:26,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1067 transitions. [2023-08-29 16:36:26,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 177.83333333333334) internal successors, (1067), 6 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:26,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:26,547 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:26,547 INFO L175 Difference]: Start difference. First operand has 373 places, 1090 transitions, 41607 flow. Second operand 6 states and 1067 transitions. [2023-08-29 16:36:26,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1089 transitions, 43215 flow [2023-08-29 16:36:32,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 1089 transitions, 42491 flow, removed 48 selfloop flow, removed 14 redundant places. [2023-08-29 16:36:32,112 INFO L231 Difference]: Finished difference. Result has 363 places, 1089 transitions, 40889 flow [2023-08-29 16:36:32,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=40881, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1089, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1085, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=40889, PETRI_PLACES=363, PETRI_TRANSITIONS=1089} [2023-08-29 16:36:32,114 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 278 predicate places. [2023-08-29 16:36:32,114 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 1089 transitions, 40889 flow [2023-08-29 16:36:32,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:32,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:36:32,114 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] [2023-08-29 16:36:32,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-29 16:36:32,115 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:36:32,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:36:32,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1073548877, now seen corresponding path program 1 times [2023-08-29 16:36:32,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:36:32,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468558178] [2023-08-29 16:36:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:36:32,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:36:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:36:32,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:36:32,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:36:32,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468558178] [2023-08-29 16:36:32,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468558178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:36:32,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:36:32,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:36:32,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016756979] [2023-08-29 16:36:32,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:36:32,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:36:32,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:36:32,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:36:32,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:36:32,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 425 [2023-08-29 16:36:32,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 1089 transitions, 40889 flow. Second operand has 6 states, 6 states have (on average 173.66666666666666) internal successors, (1042), 6 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:32,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:36:32,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 425 [2023-08-29 16:36:32,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:36:38,287 INFO L130 PetriNetUnfolder]: 5453/14123 cut-off events. [2023-08-29 16:36:38,288 INFO L131 PetriNetUnfolder]: For 638314/639813 co-relation queries the response was YES. [2023-08-29 16:36:38,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126497 conditions, 14123 events. 5453/14123 cut-off events. For 638314/639813 co-relation queries the response was YES. Maximal size of possible extension queue 749. Compared 149012 event pairs, 2589 based on Foata normal form. 138/13509 useless extension candidates. Maximal degree in co-relation 126363. Up to 9936 conditions per place. [2023-08-29 16:36:38,467 INFO L137 encePairwiseOnDemand]: 418/425 looper letters, 701 selfloop transitions, 0 changer transitions 114/1090 dead transitions. [2023-08-29 16:36:38,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 1090 transitions, 42505 flow [2023-08-29 16:36:38,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:36:38,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:36:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1068 transitions. [2023-08-29 16:36:38,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4188235294117647 [2023-08-29 16:36:38,469 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1068 transitions. [2023-08-29 16:36:38,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1068 transitions. [2023-08-29 16:36:38,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:36:38,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1068 transitions. [2023-08-29 16:36:38,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 178.0) internal successors, (1068), 6 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:38,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:38,471 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:38,471 INFO L175 Difference]: Start difference. First operand has 363 places, 1089 transitions, 40889 flow. Second operand 6 states and 1068 transitions. [2023-08-29 16:36:38,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 1090 transitions, 42505 flow [2023-08-29 16:36:43,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 1090 transitions, 42498 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 16:36:43,179 INFO L231 Difference]: Finished difference. Result has 363 places, 976 transitions, 36274 flow [2023-08-29 16:36:43,179 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=40880, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1088, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1088, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=36274, PETRI_PLACES=363, PETRI_TRANSITIONS=976} [2023-08-29 16:36:43,180 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 278 predicate places. [2023-08-29 16:36:43,180 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 976 transitions, 36274 flow [2023-08-29 16:36:43,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.66666666666666) internal successors, (1042), 6 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:43,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:36:43,181 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:36:43,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-29 16:36:43,181 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:36:43,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:36:43,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1941942497, now seen corresponding path program 1 times [2023-08-29 16:36:43,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:36:43,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576748245] [2023-08-29 16:36:43,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:36:43,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:36:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:36:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:36:43,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:36:43,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576748245] [2023-08-29 16:36:43,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576748245] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:36:43,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:36:43,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:36:43,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050728125] [2023-08-29 16:36:43,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:36:43,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:36:43,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:36:43,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:36:43,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:36:43,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 425 [2023-08-29 16:36:43,980 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 976 transitions, 36274 flow. Second operand has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:43,980 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:36:43,980 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 425 [2023-08-29 16:36:43,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:36:51,500 INFO L130 PetriNetUnfolder]: 7648/16714 cut-off events. [2023-08-29 16:36:51,501 INFO L131 PetriNetUnfolder]: For 763682/765181 co-relation queries the response was YES. [2023-08-29 16:36:51,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150465 conditions, 16714 events. 7648/16714 cut-off events. For 763682/765181 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 161572 event pairs, 2701 based on Foata normal form. 133/16352 useless extension candidates. Maximal degree in co-relation 150331. Up to 11989 conditions per place. [2023-08-29 16:36:51,727 INFO L137 encePairwiseOnDemand]: 417/425 looper letters, 638 selfloop transitions, 372 changer transitions 105/1384 dead transitions. [2023-08-29 16:36:51,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 1384 transitions, 56500 flow [2023-08-29 16:36:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:36:51,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:36:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1109 transitions. [2023-08-29 16:36:51,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4349019607843137 [2023-08-29 16:36:51,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1109 transitions. [2023-08-29 16:36:51,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1109 transitions. [2023-08-29 16:36:51,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:36:51,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1109 transitions. [2023-08-29 16:36:51,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.83333333333334) internal successors, (1109), 6 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:51,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:51,732 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 425.0) internal successors, (2975), 7 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:51,732 INFO L175 Difference]: Start difference. First operand has 363 places, 976 transitions, 36274 flow. Second operand 6 states and 1109 transitions. [2023-08-29 16:36:51,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 1384 transitions, 56500 flow [2023-08-29 16:36:57,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1384 transitions, 53632 flow, removed 989 selfloop flow, removed 12 redundant places. [2023-08-29 16:36:57,026 INFO L231 Difference]: Finished difference. Result has 330 places, 1247 transitions, 47895 flow [2023-08-29 16:36:57,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=34474, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=976, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=880, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=47895, PETRI_PLACES=330, PETRI_TRANSITIONS=1247} [2023-08-29 16:36:57,027 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 245 predicate places. [2023-08-29 16:36:57,028 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 1247 transitions, 47895 flow [2023-08-29 16:36:57,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.66666666666666) internal successors, (1078), 6 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:57,028 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:36:57,028 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:36:57,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-29 16:36:57,028 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:36:57,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:36:57,029 INFO L85 PathProgramCache]: Analyzing trace with hash 38349625, now seen corresponding path program 1 times [2023-08-29 16:36:57,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:36:57,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784760492] [2023-08-29 16:36:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:36:57,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:36:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:36:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:36:57,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:36:57,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784760492] [2023-08-29 16:36:57,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784760492] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:36:57,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:36:57,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-29 16:36:57,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651213706] [2023-08-29 16:36:57,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:36:57,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-29 16:36:57,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:36:57,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-29 16:36:57,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-08-29 16:36:58,417 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 425 [2023-08-29 16:36:58,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 1247 transitions, 47895 flow. Second operand has 10 states, 10 states have (on average 173.4) internal successors, (1734), 10 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:36:58,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:36:58,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 425 [2023-08-29 16:36:58,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:37:05,360 INFO L130 PetriNetUnfolder]: 6550/14843 cut-off events. [2023-08-29 16:37:05,360 INFO L131 PetriNetUnfolder]: For 628586/629591 co-relation queries the response was YES. [2023-08-29 16:37:05,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129544 conditions, 14843 events. 6550/14843 cut-off events. For 628586/629591 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 146012 event pairs, 1553 based on Foata normal form. 249/14694 useless extension candidates. Maximal degree in co-relation 129417. Up to 9184 conditions per place. [2023-08-29 16:37:05,505 INFO L137 encePairwiseOnDemand]: 417/425 looper letters, 126 selfloop transitions, 10 changer transitions 1151/1329 dead transitions. [2023-08-29 16:37:05,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 1329 transitions, 51862 flow [2023-08-29 16:37:05,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:37:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:37:05,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1608 transitions. [2023-08-29 16:37:05,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4203921568627451 [2023-08-29 16:37:05,507 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1608 transitions. [2023-08-29 16:37:05,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1608 transitions. [2023-08-29 16:37:05,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:37:05,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1608 transitions. [2023-08-29 16:37:05,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 178.66666666666666) internal successors, (1608), 9 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:05,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:05,510 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:05,510 INFO L175 Difference]: Start difference. First operand has 330 places, 1247 transitions, 47895 flow. Second operand 9 states and 1608 transitions. [2023-08-29 16:37:05,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 1329 transitions, 51862 flow [2023-08-29 16:37:10,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 1329 transitions, 51368 flow, removed 247 selfloop flow, removed 1 redundant places. [2023-08-29 16:37:10,626 INFO L231 Difference]: Finished difference. Result has 341 places, 173 transitions, 4823 flow [2023-08-29 16:37:10,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=47409, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4823, PETRI_PLACES=341, PETRI_TRANSITIONS=173} [2023-08-29 16:37:10,627 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 256 predicate places. [2023-08-29 16:37:10,627 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 173 transitions, 4823 flow [2023-08-29 16:37:10,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 173.4) internal successors, (1734), 10 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:10,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:37:10,627 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:37:10,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-29 16:37:10,628 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:37:10,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:37:10,628 INFO L85 PathProgramCache]: Analyzing trace with hash -381276411, now seen corresponding path program 2 times [2023-08-29 16:37:10,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:37:10,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344772228] [2023-08-29 16:37:10,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:37:10,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:37:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:37:11,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:37:11,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:37:11,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344772228] [2023-08-29 16:37:11,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344772228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:37:11,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:37:11,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:37:11,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734211875] [2023-08-29 16:37:11,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:37:11,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:37:11,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:37:11,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:37:11,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:37:12,055 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 425 [2023-08-29 16:37:12,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 173 transitions, 4823 flow. Second operand has 11 states, 11 states have (on average 173.1818181818182) internal successors, (1905), 11 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:12,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:37:12,056 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 425 [2023-08-29 16:37:12,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:37:12,535 INFO L130 PetriNetUnfolder]: 314/981 cut-off events. [2023-08-29 16:37:12,535 INFO L131 PetriNetUnfolder]: For 41973/41991 co-relation queries the response was YES. [2023-08-29 16:37:12,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9203 conditions, 981 events. 314/981 cut-off events. For 41973/41991 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6096 event pairs, 114 based on Foata normal form. 28/1000 useless extension candidates. Maximal degree in co-relation 9071. Up to 691 conditions per place. [2023-08-29 16:37:12,545 INFO L137 encePairwiseOnDemand]: 416/425 looper letters, 92 selfloop transitions, 55 changer transitions 29/218 dead transitions. [2023-08-29 16:37:12,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 218 transitions, 6680 flow [2023-08-29 16:37:12,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:37:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:37:12,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1586 transitions. [2023-08-29 16:37:12,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.414640522875817 [2023-08-29 16:37:12,551 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1586 transitions. [2023-08-29 16:37:12,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1586 transitions. [2023-08-29 16:37:12,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:37:12,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1586 transitions. [2023-08-29 16:37:12,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 176.22222222222223) internal successors, (1586), 9 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:12,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:12,564 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:12,565 INFO L175 Difference]: Start difference. First operand has 341 places, 173 transitions, 4823 flow. Second operand 9 states and 1586 transitions. [2023-08-29 16:37:12,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 218 transitions, 6680 flow [2023-08-29 16:37:12,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 218 transitions, 4176 flow, removed 264 selfloop flow, removed 98 redundant places. [2023-08-29 16:37:12,675 INFO L231 Difference]: Finished difference. Result has 210 places, 173 transitions, 3107 flow [2023-08-29 16:37:12,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=2968, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3107, PETRI_PLACES=210, PETRI_TRANSITIONS=173} [2023-08-29 16:37:12,675 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 125 predicate places. [2023-08-29 16:37:12,676 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 173 transitions, 3107 flow [2023-08-29 16:37:12,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 173.1818181818182) internal successors, (1905), 11 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:12,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:37:12,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:37:12,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-29 16:37:12,676 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:37:12,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:37:12,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1814768933, now seen corresponding path program 3 times [2023-08-29 16:37:12,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:37:12,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874538226] [2023-08-29 16:37:12,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:37:12,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:37:12,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:37:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:37:13,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:37:13,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874538226] [2023-08-29 16:37:13,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874538226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:37:13,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:37:13,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:37:13,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128246412] [2023-08-29 16:37:13,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:37:13,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:37:13,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:37:13,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:37:13,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:37:14,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 425 [2023-08-29 16:37:14,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 173 transitions, 3107 flow. Second operand has 11 states, 11 states have (on average 173.1818181818182) internal successors, (1905), 11 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:14,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:37:14,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 425 [2023-08-29 16:37:14,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:37:14,509 INFO L130 PetriNetUnfolder]: 368/1110 cut-off events. [2023-08-29 16:37:14,509 INFO L131 PetriNetUnfolder]: For 11703/11715 co-relation queries the response was YES. [2023-08-29 16:37:14,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7190 conditions, 1110 events. 368/1110 cut-off events. For 11703/11715 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 7118 event pairs, 117 based on Foata normal form. 28/1128 useless extension candidates. Maximal degree in co-relation 7119. Up to 414 conditions per place. [2023-08-29 16:37:14,516 INFO L137 encePairwiseOnDemand]: 417/425 looper letters, 110 selfloop transitions, 11 changer transitions 71/234 dead transitions. [2023-08-29 16:37:14,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 234 transitions, 4604 flow [2023-08-29 16:37:14,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:37:14,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:37:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1590 transitions. [2023-08-29 16:37:14,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41568627450980394 [2023-08-29 16:37:14,518 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1590 transitions. [2023-08-29 16:37:14,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1590 transitions. [2023-08-29 16:37:14,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:37:14,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1590 transitions. [2023-08-29 16:37:14,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 176.66666666666666) internal successors, (1590), 9 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:14,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:14,521 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:14,521 INFO L175 Difference]: Start difference. First operand has 210 places, 173 transitions, 3107 flow. Second operand 9 states and 1590 transitions. [2023-08-29 16:37:14,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 234 transitions, 4604 flow [2023-08-29 16:37:14,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 234 transitions, 4398 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-29 16:37:14,551 INFO L231 Difference]: Finished difference. Result has 212 places, 160 transitions, 2754 flow [2023-08-29 16:37:14,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=2983, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2754, PETRI_PLACES=212, PETRI_TRANSITIONS=160} [2023-08-29 16:37:14,552 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 127 predicate places. [2023-08-29 16:37:14,552 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 160 transitions, 2754 flow [2023-08-29 16:37:14,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 173.1818181818182) internal successors, (1905), 11 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:14,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:37:14,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:37:14,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-29 16:37:14,552 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:37:14,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:37:14,553 INFO L85 PathProgramCache]: Analyzing trace with hash -371851791, now seen corresponding path program 4 times [2023-08-29 16:37:14,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:37:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691733435] [2023-08-29 16:37:14,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:37:14,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:37:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:37:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:37:15,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:37:15,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691733435] [2023-08-29 16:37:15,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691733435] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:37:15,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:37:15,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:37:15,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577389294] [2023-08-29 16:37:15,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:37:15,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:37:15,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:37:15,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:37:15,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:37:15,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 425 [2023-08-29 16:37:15,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 160 transitions, 2754 flow. Second operand has 11 states, 11 states have (on average 173.1818181818182) internal successors, (1905), 11 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:15,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:37:15,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 425 [2023-08-29 16:37:15,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:37:16,244 INFO L130 PetriNetUnfolder]: 219/798 cut-off events. [2023-08-29 16:37:16,244 INFO L131 PetriNetUnfolder]: For 8963/8973 co-relation queries the response was YES. [2023-08-29 16:37:16,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4725 conditions, 798 events. 219/798 cut-off events. For 8963/8973 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4991 event pairs, 51 based on Foata normal form. 28/825 useless extension candidates. Maximal degree in co-relation 4651. Up to 459 conditions per place. [2023-08-29 16:37:16,249 INFO L137 encePairwiseOnDemand]: 416/425 looper letters, 77 selfloop transitions, 43 changer transitions 46/208 dead transitions. [2023-08-29 16:37:16,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 208 transitions, 4021 flow [2023-08-29 16:37:16,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-29 16:37:16,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-29 16:37:16,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1758 transitions. [2023-08-29 16:37:16,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4136470588235294 [2023-08-29 16:37:16,252 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1758 transitions. [2023-08-29 16:37:16,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1758 transitions. [2023-08-29 16:37:16,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:37:16,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1758 transitions. [2023-08-29 16:37:16,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 175.8) internal successors, (1758), 10 states have internal predecessors, (1758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:16,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:16,255 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 425.0) internal successors, (4675), 11 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:16,255 INFO L175 Difference]: Start difference. First operand has 212 places, 160 transitions, 2754 flow. Second operand 10 states and 1758 transitions. [2023-08-29 16:37:16,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 208 transitions, 4021 flow [2023-08-29 16:37:16,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 208 transitions, 3973 flow, removed 8 selfloop flow, removed 9 redundant places. [2023-08-29 16:37:16,281 INFO L231 Difference]: Finished difference. Result has 212 places, 160 transitions, 2842 flow [2023-08-29 16:37:16,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=2724, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2842, PETRI_PLACES=212, PETRI_TRANSITIONS=160} [2023-08-29 16:37:16,282 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 127 predicate places. [2023-08-29 16:37:16,282 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 160 transitions, 2842 flow [2023-08-29 16:37:16,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 173.1818181818182) internal successors, (1905), 11 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:16,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:37:16,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:37:16,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-29 16:37:16,283 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-08-29 16:37:16,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:37:16,283 INFO L85 PathProgramCache]: Analyzing trace with hash -12713691, now seen corresponding path program 5 times [2023-08-29 16:37:16,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:37:16,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302266961] [2023-08-29 16:37:16,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:37:16,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:37:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:37:16,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:37:16,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:37:16,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302266961] [2023-08-29 16:37:16,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302266961] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:37:16,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:37:16,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-29 16:37:16,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51110267] [2023-08-29 16:37:16,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:37:16,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-29 16:37:16,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:37:16,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-29 16:37:16,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-29 16:37:17,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 425 [2023-08-29 16:37:17,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 160 transitions, 2842 flow. Second operand has 11 states, 11 states have (on average 173.1818181818182) internal successors, (1905), 11 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:17,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:37:17,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 425 [2023-08-29 16:37:17,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:37:17,844 INFO L130 PetriNetUnfolder]: 158/627 cut-off events. [2023-08-29 16:37:17,844 INFO L131 PetriNetUnfolder]: For 6938/6948 co-relation queries the response was YES. [2023-08-29 16:37:17,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3823 conditions, 627 events. 158/627 cut-off events. For 6938/6948 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3718 event pairs, 30 based on Foata normal form. 28/654 useless extension candidates. Maximal degree in co-relation 3751. Up to 252 conditions per place. [2023-08-29 16:37:17,848 INFO L137 encePairwiseOnDemand]: 417/425 looper letters, 0 selfloop transitions, 0 changer transitions 176/176 dead transitions. [2023-08-29 16:37:17,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 176 transitions, 3326 flow [2023-08-29 16:37:17,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-29 16:37:17,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-29 16:37:17,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1582 transitions. [2023-08-29 16:37:17,850 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4135947712418301 [2023-08-29 16:37:17,850 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1582 transitions. [2023-08-29 16:37:17,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1582 transitions. [2023-08-29 16:37:17,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:37:17,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1582 transitions. [2023-08-29 16:37:17,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 175.77777777777777) internal successors, (1582), 9 states have internal predecessors, (1582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:17,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:17,853 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 425.0) internal successors, (4250), 10 states have internal predecessors, (4250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:17,853 INFO L175 Difference]: Start difference. First operand has 212 places, 160 transitions, 2842 flow. Second operand 9 states and 1582 transitions. [2023-08-29 16:37:17,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 176 transitions, 3326 flow [2023-08-29 16:37:17,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 176 transitions, 3220 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-29 16:37:17,876 INFO L231 Difference]: Finished difference. Result has 208 places, 0 transitions, 0 flow [2023-08-29 16:37:17,876 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=425, PETRI_DIFFERENCE_MINUEND_FLOW=2735, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=208, PETRI_TRANSITIONS=0} [2023-08-29 16:37:17,876 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 123 predicate places. [2023-08-29 16:37:17,876 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 0 transitions, 0 flow [2023-08-29 16:37:17,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 173.1818181818182) internal successors, (1905), 11 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:37:17,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2023-08-29 16:37:17,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-08-29 16:37:17,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-08-29 16:37:17,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-08-29 16:37:17,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-08-29 16:37:17,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-08-29 16:37:17,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-08-29 16:37:17,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-08-29 16:37:17,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-08-29 16:37:17,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-08-29 16:37:17,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-08-29 16:37:17,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-08-29 16:37:17,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-08-29 16:37:17,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-08-29 16:37:17,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2023-08-29 16:37:17,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 25 remaining) [2023-08-29 16:37:17,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-08-29 16:37:17,881 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-08-29 16:37:17,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-08-29 16:37:17,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-08-29 16:37:17,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-08-29 16:37:17,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-08-29 16:37:17,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-08-29 16:37:17,882 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-08-29 16:37:17,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr2ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-08-29 16:37:17,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-29 16:37:17,883 INFO L445 BasicCegarLoop]: Path program histogram: [11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:37:17,887 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 16:37:17,887 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 16:37:17,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:37:17 BasicIcfg [2023-08-29 16:37:17,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 16:37:17,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 16:37:17,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 16:37:17,890 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 16:37:17,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:32:48" (3/4) ... [2023-08-29 16:37:17,893 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 16:37:17,897 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-29 16:37:17,904 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 69 nodes and edges [2023-08-29 16:37:17,904 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-29 16:37:17,905 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-08-29 16:37:17,905 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 16:37:17,949 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 16:37:17,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 16:37:17,950 INFO L158 Benchmark]: Toolchain (without parser) took 271292.65ms. Allocated memory was 79.7MB in the beginning and 8.4GB in the end (delta: 8.3GB). Free memory was 52.0MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2023-08-29 16:37:17,951 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:37:17,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 794.22ms. Allocated memory is still 79.7MB. Free memory was 51.8MB in the beginning and 41.3MB in the end (delta: 10.5MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-08-29 16:37:17,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.22ms. Allocated memory is still 79.7MB. Free memory was 41.3MB in the beginning and 36.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 16:37:17,951 INFO L158 Benchmark]: Boogie Preprocessor took 65.80ms. Allocated memory is still 79.7MB. Free memory was 36.8MB in the beginning and 32.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 16:37:17,952 INFO L158 Benchmark]: RCFGBuilder took 901.53ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 32.6MB in the beginning and 46.5MB in the end (delta: -13.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-08-29 16:37:17,952 INFO L158 Benchmark]: TraceAbstraction took 269372.95ms. Allocated memory was 98.6MB in the beginning and 8.4GB in the end (delta: 8.3GB). Free memory was 45.5MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2023-08-29 16:37:17,952 INFO L158 Benchmark]: Witness Printer took 59.66ms. Allocated memory is still 8.4GB. Free memory was 6.7GB in the beginning and 6.7GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-29 16:37:17,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 794.22ms. Allocated memory is still 79.7MB. Free memory was 51.8MB in the beginning and 41.3MB in the end (delta: 10.5MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.22ms. Allocated memory is still 79.7MB. Free memory was 41.3MB in the beginning and 36.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.80ms. Allocated memory is still 79.7MB. Free memory was 36.8MB in the beginning and 32.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 901.53ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 32.6MB in the beginning and 46.5MB in the end (delta: -13.9MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 269372.95ms. Allocated memory was 98.6MB in the beginning and 8.4GB in the end (delta: 8.3GB). Free memory was 45.5MB in the beginning and 6.7GB in the end (delta: -6.6GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 59.66ms. Allocated memory is still 8.4GB. Free memory was 6.7GB in the beginning and 6.7GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.6s, 229 PlacesBefore, 85 PlacesAfterwards, 228 TransitionsBefore, 82 TransitionsAfterwards, 6368 CoEnabledTransitionPairs, 8 FixpointIterations, 106 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 24 ConcurrentYvCompositions, 2 ChoiceCompositions, 194 TotalNumberOfCompositions, 34732 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8374, independent: 7281, independent conditional: 0, independent unconditional: 7281, dependent: 1093, dependent conditional: 0, dependent unconditional: 1093, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3164, independent: 3072, independent conditional: 0, independent unconditional: 3072, dependent: 92, dependent conditional: 0, dependent unconditional: 92, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8374, independent: 4209, independent conditional: 0, independent unconditional: 4209, dependent: 1001, dependent conditional: 0, dependent unconditional: 1001, unknown: 3164, unknown conditional: 0, unknown unconditional: 3164] , Statistics on independence cache: Total cache size (in pairs): 299, Positive cache size: 231, Positive conditional cache size: 0, Positive unconditional cache size: 231, Negative cache size: 68, Negative conditional cache size: 0, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1716]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1757]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1735]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1694]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1700]: 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, 244 locations, 25 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: 269.2s, OverallIterations: 35, TraceHistogramMax: 1, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 202.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 49.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19206 SdHoareTripleChecker+Valid, 58.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15670 mSDsluCounter, 13835 SdHoareTripleChecker+Invalid, 51.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13279 mSDsCounter, 4873 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71361 IncrementalHoareTripleChecker+Invalid, 76234 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4873 mSolverCounterUnsat, 556 mSDtfsCounter, 71361 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 526 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 517 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1203 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47895occurred in iteration=30, InterpolantAutomatonStates: 360, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 632 NumberOfCodeBlocks, 632 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 597 ConstructedInterpolants, 0 QuantifiedInterpolants, 7493 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 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 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 16:37:17,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE