./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:26:55,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:26:55,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:26:55,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:26:55,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:26:55,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:26:55,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:26:55,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:26:55,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:26:55,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:26:55,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:26:55,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:26:55,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:26:55,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:26:55,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:26:55,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:26:55,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:26:55,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:26:55,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:26:55,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:26:55,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:26:55,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:26:55,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:26:55,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:26:55,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:26:55,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:26:55,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:26:55,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:26:55,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:26:55,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:26:55,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:26:55,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:26:55,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:26:55,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:26:55,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:26:55,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:26:55,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:26:55,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:26:55,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:26:55,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:26:55,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:26:55,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:26:55,758 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:26:55,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:26:55,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:26:55,759 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:26:55,760 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:26:55,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:26:55,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:26:55,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:26:55,761 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:26:55,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:26:55,762 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:26:55,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:26:55,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:26:55,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:26:55,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:26:55,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:26:55,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:26:55,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:26:55,764 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:26:55,764 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:26:55,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:26:55,765 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:26:55,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:26:55,765 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:26:55,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:26:55,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:26:55,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:55,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:26:55,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:26:55,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:26:55,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:26:55,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:26:55,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:26:55,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:26:55,768 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:26:55,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:26:55,769 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:26:55,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:26:56,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:26:56,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:26:56,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:26:56,125 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:26:56,126 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:26:56,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-09-01 05:26:57,347 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:26:57,647 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:26:57,650 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-09-01 05:26:57,670 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0987bf7b5/9ddac22537874404a57ecd73e4a2ec49/FLAGd5b0890cf [2023-09-01 05:26:57,690 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0987bf7b5/9ddac22537874404a57ecd73e4a2ec49 [2023-09-01 05:26:57,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:26:57,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:26:57,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:57,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:26:57,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:26:57,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:57" (1/1) ... [2023-09-01 05:26:57,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132ddb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:57, skipping insertion in model container [2023-09-01 05:26:57,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:26:57" (1/1) ... [2023-09-01 05:26:57,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:26:57,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:26:57,864 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-09-01 05:26:58,280 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2023-09-01 05:26:58,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:58,336 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:26:58,348 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-09-01 05:26:58,419 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2023-09-01 05:26:58,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:26:58,513 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:58,514 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:58,514 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:26:58,519 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:26:58,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58 WrapperNode [2023-09-01 05:26:58,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:26:58,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:58,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:26:58,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:26:58,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,590 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2023-09-01 05:26:58,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:26:58,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:26:58,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:26:58,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:26:58,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,623 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:26:58,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:26:58,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:26:58,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:26:58,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (1/1) ... [2023-09-01 05:26:58,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:26:58,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:26:58,682 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) [2023-09-01 05:26:58,706 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 [2023-09-01 05:26:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:26:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:26:58,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:26:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 05:26:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:26:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-01 05:26:58,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:26:58,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:26:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-09-01 05:26:58,728 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-09-01 05:26:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:26:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:26:58,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:26:58,730 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:26:59,055 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:26:59,057 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:26:59,294 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:26:59,332 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:26:59,332 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:26:59,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:59 BoogieIcfgContainer [2023-09-01 05:26:59,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:26:59,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:26:59,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:26:59,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:26:59,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:26:57" (1/3) ... [2023-09-01 05:26:59,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c53b226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:59, skipping insertion in model container [2023-09-01 05:26:59,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:26:58" (2/3) ... [2023-09-01 05:26:59,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c53b226 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:26:59, skipping insertion in model container [2023-09-01 05:26:59,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:59" (3/3) ... [2023-09-01 05:26:59,343 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-09-01 05:26:59,351 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:26:59,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:26:59,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-09-01 05:26:59,363 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:26:59,459 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 05:26:59,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 147 transitions, 310 flow [2023-09-01 05:26:59,589 INFO L130 PetriNetUnfolder]: 8/183 cut-off events. [2023-09-01 05:26:59,589 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 05:26:59,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 183 events. 8/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 304 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2023-09-01 05:26:59,595 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 147 transitions, 310 flow [2023-09-01 05:26:59,602 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 117 transitions, 243 flow [2023-09-01 05:26:59,607 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:26:59,628 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 117 transitions, 243 flow [2023-09-01 05:26:59,636 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 117 transitions, 243 flow [2023-09-01 05:26:59,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 117 transitions, 243 flow [2023-09-01 05:26:59,679 INFO L130 PetriNetUnfolder]: 2/117 cut-off events. [2023-09-01 05:26:59,679 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 05:26:59,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 117 events. 2/117 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 121 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-09-01 05:26:59,683 INFO L119 LiptonReduction]: Number of co-enabled transitions 2520 [2023-09-01 05:27:05,378 INFO L134 LiptonReduction]: Checked pairs total: 5449 [2023-09-01 05:27:05,378 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-09-01 05:27:05,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:27:05,394 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;@428c3a54, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:27:05,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-09-01 05:27:05,397 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-09-01 05:27:05,398 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:27:05,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:05,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 05:27:05,403 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:05,407 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:05,408 INFO L85 PathProgramCache]: Analyzing trace with hash 14850815, now seen corresponding path program 1 times [2023-09-01 05:27:05,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:05,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802310980] [2023-09-01 05:27:05,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:05,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:06,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:06,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802310980] [2023-09-01 05:27:06,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802310980] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:06,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:06,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:27:06,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311276921] [2023-09-01 05:27:06,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:06,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:27:06,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:06,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:27:06,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:27:06,492 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 257 [2023-09-01 05:27:06,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 55 flow. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:06,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:06,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 257 [2023-09-01 05:27:06,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:06,651 INFO L130 PetriNetUnfolder]: 108/209 cut-off events. [2023-09-01 05:27:06,651 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-09-01 05:27:06,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 209 events. 108/209 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 726 event pairs, 81 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 360. Up to 206 conditions per place. [2023-09-01 05:27:06,655 INFO L137 encePairwiseOnDemand]: 249/257 looper letters, 17 selfloop transitions, 6 changer transitions 0/23 dead transitions. [2023-09-01 05:27:06,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 101 flow [2023-09-01 05:27:06,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:27:06,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:27:06,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2023-09-01 05:27:06,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754863813229572 [2023-09-01 05:27:06,677 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2023-09-01 05:27:06,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2023-09-01 05:27:06,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:06,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2023-09-01 05:27:06,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:06,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:06,699 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:06,701 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 55 flow. Second operand 5 states and 611 transitions. [2023-09-01 05:27:06,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 101 flow [2023-09-01 05:27:06,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:06,705 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 76 flow [2023-09-01 05:27:06,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2023-09-01 05:27:06,710 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2023-09-01 05:27:06,710 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 76 flow [2023-09-01 05:27:06,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:06,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:06,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:27:06,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:27:06,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:06,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:06,722 INFO L85 PathProgramCache]: Analyzing trace with hash 460376987, now seen corresponding path program 1 times [2023-09-01 05:27:06,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:06,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536030016] [2023-09-01 05:27:06,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:06,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:07,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:07,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536030016] [2023-09-01 05:27:07,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536030016] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:07,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:07,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:07,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18452977] [2023-09-01 05:27:07,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:07,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:07,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:07,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:07,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:07,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-09-01 05:27:07,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:07,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:07,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-09-01 05:27:07,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:07,630 INFO L130 PetriNetUnfolder]: 100/195 cut-off events. [2023-09-01 05:27:07,630 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-09-01 05:27:07,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 195 events. 100/195 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 653 event pairs, 34 based on Foata normal form. 3/158 useless extension candidates. Maximal degree in co-relation 368. Up to 177 conditions per place. [2023-09-01 05:27:07,632 INFO L137 encePairwiseOnDemand]: 250/257 looper letters, 23 selfloop transitions, 8 changer transitions 0/31 dead transitions. [2023-09-01 05:27:07,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 164 flow [2023-09-01 05:27:07,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:27:07,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:27:07,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2023-09-01 05:27:07,635 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754863813229572 [2023-09-01 05:27:07,635 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2023-09-01 05:27:07,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2023-09-01 05:27:07,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:07,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2023-09-01 05:27:07,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:07,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:07,640 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:07,640 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 76 flow. Second operand 5 states and 611 transitions. [2023-09-01 05:27:07,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 164 flow [2023-09-01 05:27:07,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:07,642 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 121 flow [2023-09-01 05:27:07,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-09-01 05:27:07,643 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2023-09-01 05:27:07,643 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 121 flow [2023-09-01 05:27:07,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:07,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:07,644 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:27:07,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:27:07,644 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:07,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:07,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1386552957, now seen corresponding path program 1 times [2023-09-01 05:27:07,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:07,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667090764] [2023-09-01 05:27:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:07,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:07,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:07,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:07,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667090764] [2023-09-01 05:27:07,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667090764] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:07,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:07,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:07,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961162357] [2023-09-01 05:27:07,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:07,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:07,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:07,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:07,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:08,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-09-01 05:27:08,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:08,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:08,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-09-01 05:27:08,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:08,215 INFO L130 PetriNetUnfolder]: 94/185 cut-off events. [2023-09-01 05:27:08,215 INFO L131 PetriNetUnfolder]: For 104/104 co-relation queries the response was YES. [2023-09-01 05:27:08,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 185 events. 94/185 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 612 event pairs, 71 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 419. Up to 175 conditions per place. [2023-09-01 05:27:08,217 INFO L137 encePairwiseOnDemand]: 250/257 looper letters, 25 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-09-01 05:27:08,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 213 flow [2023-09-01 05:27:08,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-01 05:27:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-09-01 05:27:08,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 610 transitions. [2023-09-01 05:27:08,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47470817120622566 [2023-09-01 05:27:08,220 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 610 transitions. [2023-09-01 05:27:08,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 610 transitions. [2023-09-01 05:27:08,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:08,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 610 transitions. [2023-09-01 05:27:08,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:08,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:08,224 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:08,224 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 121 flow. Second operand 5 states and 610 transitions. [2023-09-01 05:27:08,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 213 flow [2023-09-01 05:27:08,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 201 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:08,227 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 162 flow [2023-09-01 05:27:08,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2023-09-01 05:27:08,228 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2023-09-01 05:27:08,228 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 162 flow [2023-09-01 05:27:08,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:08,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:08,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:08,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:27:08,229 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:08,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:08,230 INFO L85 PathProgramCache]: Analyzing trace with hash 40623604, now seen corresponding path program 1 times [2023-09-01 05:27:08,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:08,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026330124] [2023-09-01 05:27:08,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:08,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:08,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:08,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:08,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026330124] [2023-09-01 05:27:08,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026330124] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:08,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:08,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:08,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514492039] [2023-09-01 05:27:08,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:08,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:08,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:08,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:08,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:09,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-09-01 05:27:09,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 162 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:09,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-09-01 05:27:09,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:09,165 INFO L130 PetriNetUnfolder]: 124/235 cut-off events. [2023-09-01 05:27:09,166 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-09-01 05:27:09,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 235 events. 124/235 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 844 event pairs, 26 based on Foata normal form. 8/216 useless extension candidates. Maximal degree in co-relation 357. Up to 175 conditions per place. [2023-09-01 05:27:09,168 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 29 selfloop transitions, 15 changer transitions 0/44 dead transitions. [2023-09-01 05:27:09,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 44 transitions, 298 flow [2023-09-01 05:27:09,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:27:09,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:27:09,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 736 transitions. [2023-09-01 05:27:09,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4773022049286641 [2023-09-01 05:27:09,171 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 736 transitions. [2023-09-01 05:27:09,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 736 transitions. [2023-09-01 05:27:09,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:09,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 736 transitions. [2023-09-01 05:27:09,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.66666666666667) internal successors, (736), 6 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,177 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,177 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 162 flow. Second operand 6 states and 736 transitions. [2023-09-01 05:27:09,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 44 transitions, 298 flow [2023-09-01 05:27:09,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 288 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:09,180 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 231 flow [2023-09-01 05:27:09,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-09-01 05:27:09,181 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 15 predicate places. [2023-09-01 05:27:09,181 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 231 flow [2023-09-01 05:27:09,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:09,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:09,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:27:09,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:09,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:09,183 INFO L85 PathProgramCache]: Analyzing trace with hash 40623617, now seen corresponding path program 1 times [2023-09-01 05:27:09,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:09,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637262258] [2023-09-01 05:27:09,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:09,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:09,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:09,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:09,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:09,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637262258] [2023-09-01 05:27:09,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637262258] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:09,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:09,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:09,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85636577] [2023-09-01 05:27:09,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:09,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:09,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:09,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:09,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:09,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-09-01 05:27:09,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 231 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:09,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:09,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-09-01 05:27:09,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:10,053 INFO L130 PetriNetUnfolder]: 112/215 cut-off events. [2023-09-01 05:27:10,053 INFO L131 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2023-09-01 05:27:10,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 215 events. 112/215 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 744 event pairs, 27 based on Foata normal form. 4/196 useless extension candidates. Maximal degree in co-relation 372. Up to 177 conditions per place. [2023-09-01 05:27:10,055 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 29 selfloop transitions, 14 changer transitions 0/43 dead transitions. [2023-09-01 05:27:10,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 333 flow [2023-09-01 05:27:10,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 05:27:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 05:27:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 852 transitions. [2023-09-01 05:27:10,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4735964424680378 [2023-09-01 05:27:10,058 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 852 transitions. [2023-09-01 05:27:10,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 852 transitions. [2023-09-01 05:27:10,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:10,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 852 transitions. [2023-09-01 05:27:10,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.71428571428571) internal successors, (852), 7 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,064 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,064 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 231 flow. Second operand 7 states and 852 transitions. [2023-09-01 05:27:10,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 333 flow [2023-09-01 05:27:10,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 43 transitions, 318 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-09-01 05:27:10,068 INFO L231 Difference]: Finished difference. Result has 49 places, 35 transitions, 251 flow [2023-09-01 05:27:10,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2023-09-01 05:27:10,069 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2023-09-01 05:27:10,069 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 251 flow [2023-09-01 05:27:10,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:10,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:10,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:27:10,070 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:10,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:10,071 INFO L85 PathProgramCache]: Analyzing trace with hash 33470987, now seen corresponding path program 2 times [2023-09-01 05:27:10,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:10,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803655307] [2023-09-01 05:27:10,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:10,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:10,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:10,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:10,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803655307] [2023-09-01 05:27:10,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803655307] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:10,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:10,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335788856] [2023-09-01 05:27:10,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:10,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:10,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:10,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:10,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:10,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-09-01 05:27:10,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 251 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:10,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:10,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-09-01 05:27:10,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:11,057 INFO L130 PetriNetUnfolder]: 144/269 cut-off events. [2023-09-01 05:27:11,057 INFO L131 PetriNetUnfolder]: For 381/381 co-relation queries the response was YES. [2023-09-01 05:27:11,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 269 events. 144/269 cut-off events. For 381/381 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 990 event pairs, 35 based on Foata normal form. 8/250 useless extension candidates. Maximal degree in co-relation 574. Up to 114 conditions per place. [2023-09-01 05:27:11,060 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 29 selfloop transitions, 26 changer transitions 4/59 dead transitions. [2023-09-01 05:27:11,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 499 flow [2023-09-01 05:27:11,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:27:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:27:11,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1096 transitions. [2023-09-01 05:27:11,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4738434932987462 [2023-09-01 05:27:11,063 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1096 transitions. [2023-09-01 05:27:11,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1096 transitions. [2023-09-01 05:27:11,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:11,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1096 transitions. [2023-09-01 05:27:11,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 121.77777777777777) internal successors, (1096), 9 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,070 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,071 INFO L175 Difference]: Start difference. First operand has 49 places, 35 transitions, 251 flow. Second operand 9 states and 1096 transitions. [2023-09-01 05:27:11,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 499 flow [2023-09-01 05:27:11,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 59 transitions, 447 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:11,074 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 330 flow [2023-09-01 05:27:11,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=330, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2023-09-01 05:27:11,075 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 23 predicate places. [2023-09-01 05:27:11,076 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 330 flow [2023-09-01 05:27:11,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:11,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:11,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 05:27:11,077 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:11,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:11,077 INFO L85 PathProgramCache]: Analyzing trace with hash 33473777, now seen corresponding path program 3 times [2023-09-01 05:27:11,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:11,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467741679] [2023-09-01 05:27:11,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:11,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:11,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:11,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467741679] [2023-09-01 05:27:11,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467741679] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:11,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:11,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:11,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736791559] [2023-09-01 05:27:11,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:11,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:11,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:11,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:11,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:11,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 257 [2023-09-01 05:27:11,869 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 330 flow. Second operand has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:11,869 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:11,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 257 [2023-09-01 05:27:11,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:12,212 INFO L130 PetriNetUnfolder]: 137/259 cut-off events. [2023-09-01 05:27:12,212 INFO L131 PetriNetUnfolder]: For 391/391 co-relation queries the response was YES. [2023-09-01 05:27:12,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 259 events. 137/259 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 971 event pairs, 34 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 632. Up to 107 conditions per place. [2023-09-01 05:27:12,214 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 31 selfloop transitions, 26 changer transitions 2/59 dead transitions. [2023-09-01 05:27:12,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 506 flow [2023-09-01 05:27:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:27:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:27:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1111 transitions. [2023-09-01 05:27:12,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4803285776048422 [2023-09-01 05:27:12,218 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1111 transitions. [2023-09-01 05:27:12,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1111 transitions. [2023-09-01 05:27:12,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:12,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1111 transitions. [2023-09-01 05:27:12,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 123.44444444444444) internal successors, (1111), 9 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:12,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:12,226 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:12,227 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 330 flow. Second operand 9 states and 1111 transitions. [2023-09-01 05:27:12,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 506 flow [2023-09-01 05:27:12,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 59 transitions, 462 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:12,230 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 388 flow [2023-09-01 05:27:12,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=388, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2023-09-01 05:27:12,230 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 27 predicate places. [2023-09-01 05:27:12,230 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 388 flow [2023-09-01 05:27:12,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:12,231 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:12,231 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:12,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 05:27:12,231 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:12,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:12,231 INFO L85 PathProgramCache]: Analyzing trace with hash 33473764, now seen corresponding path program 2 times [2023-09-01 05:27:12,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:12,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003007595] [2023-09-01 05:27:12,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:12,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:12,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:12,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:12,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003007595] [2023-09-01 05:27:12,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003007595] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:12,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:12,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:12,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075891314] [2023-09-01 05:27:12,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:12,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:12,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:12,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:12,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:13,007 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-09-01 05:27:13,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 388 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:13,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-09-01 05:27:13,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:13,193 INFO L130 PetriNetUnfolder]: 119/229 cut-off events. [2023-09-01 05:27:13,193 INFO L131 PetriNetUnfolder]: For 635/635 co-relation queries the response was YES. [2023-09-01 05:27:13,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 229 events. 119/229 cut-off events. For 635/635 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 818 event pairs, 15 based on Foata normal form. 6/226 useless extension candidates. Maximal degree in co-relation 570. Up to 106 conditions per place. [2023-09-01 05:27:13,195 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 29 selfloop transitions, 25 changer transitions 2/56 dead transitions. [2023-09-01 05:27:13,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 530 flow [2023-09-01 05:27:13,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 05:27:13,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 05:27:13,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 854 transitions. [2023-09-01 05:27:13,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47470817120622566 [2023-09-01 05:27:13,198 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 854 transitions. [2023-09-01 05:27:13,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 854 transitions. [2023-09-01 05:27:13,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:13,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 854 transitions. [2023-09-01 05:27:13,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,204 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,204 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 388 flow. Second operand 7 states and 854 transitions. [2023-09-01 05:27:13,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 530 flow [2023-09-01 05:27:13,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 515 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:13,209 INFO L231 Difference]: Finished difference. Result has 60 places, 45 transitions, 439 flow [2023-09-01 05:27:13,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=439, PETRI_PLACES=60, PETRI_TRANSITIONS=45} [2023-09-01 05:27:13,210 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2023-09-01 05:27:13,210 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 45 transitions, 439 flow [2023-09-01 05:27:13,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:13,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:13,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 05:27:13,211 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:13,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:13,212 INFO L85 PathProgramCache]: Analyzing trace with hash 33470974, now seen corresponding path program 3 times [2023-09-01 05:27:13,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:13,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481380894] [2023-09-01 05:27:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:13,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:13,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:13,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:13,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481380894] [2023-09-01 05:27:13,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481380894] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:13,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:13,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:13,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117227710] [2023-09-01 05:27:13,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:13,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:13,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:13,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:13,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:13,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-09-01 05:27:13,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 45 transitions, 439 flow. Second operand has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:13,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-09-01 05:27:13,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:13,952 INFO L130 PetriNetUnfolder]: 107/209 cut-off events. [2023-09-01 05:27:13,953 INFO L131 PetriNetUnfolder]: For 846/846 co-relation queries the response was YES. [2023-09-01 05:27:13,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 209 events. 107/209 cut-off events. For 846/846 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 722 event pairs, 15 based on Foata normal form. 4/208 useless extension candidates. Maximal degree in co-relation 632. Up to 102 conditions per place. [2023-09-01 05:27:13,955 INFO L137 encePairwiseOnDemand]: 249/257 looper letters, 25 selfloop transitions, 24 changer transitions 2/51 dead transitions. [2023-09-01 05:27:13,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 51 transitions, 553 flow [2023-09-01 05:27:13,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:27:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:27:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2023-09-01 05:27:13,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4662775616083009 [2023-09-01 05:27:13,958 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 719 transitions. [2023-09-01 05:27:13,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 719 transitions. [2023-09-01 05:27:13,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:13,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 719 transitions. [2023-09-01 05:27:13,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,964 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,964 INFO L175 Difference]: Start difference. First operand has 60 places, 45 transitions, 439 flow. Second operand 6 states and 719 transitions. [2023-09-01 05:27:13,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 51 transitions, 553 flow [2023-09-01 05:27:13,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 51 transitions, 514 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:13,970 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 465 flow [2023-09-01 05:27:13,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=465, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2023-09-01 05:27:13,971 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 34 predicate places. [2023-09-01 05:27:13,971 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 465 flow [2023-09-01 05:27:13,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:13,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:13,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:13,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 05:27:13,973 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:13,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:13,973 INFO L85 PathProgramCache]: Analyzing trace with hash 33473778, now seen corresponding path program 1 times [2023-09-01 05:27:13,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:13,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69461756] [2023-09-01 05:27:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:13,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:14,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:14,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:14,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69461756] [2023-09-01 05:27:14,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69461756] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:14,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:14,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:14,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374415669] [2023-09-01 05:27:14,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:14,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:14,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:14,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:14,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:14,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-09-01 05:27:14,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 465 flow. Second operand has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:14,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-09-01 05:27:14,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:14,901 INFO L130 PetriNetUnfolder]: 102/198 cut-off events. [2023-09-01 05:27:14,901 INFO L131 PetriNetUnfolder]: For 1021/1021 co-relation queries the response was YES. [2023-09-01 05:27:14,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 198 events. 102/198 cut-off events. For 1021/1021 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 672 event pairs, 18 based on Foata normal form. 4/197 useless extension candidates. Maximal degree in co-relation 661. Up to 99 conditions per place. [2023-09-01 05:27:14,904 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 26 selfloop transitions, 26 changer transitions 2/54 dead transitions. [2023-09-01 05:27:14,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 54 transitions, 583 flow [2023-09-01 05:27:14,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:27:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:27:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 955 transitions. [2023-09-01 05:27:14,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46449416342412453 [2023-09-01 05:27:14,907 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 955 transitions. [2023-09-01 05:27:14,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 955 transitions. [2023-09-01 05:27:14,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:14,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 955 transitions. [2023-09-01 05:27:14,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 119.375) internal successors, (955), 8 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 257.0) internal successors, (2313), 9 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,913 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 257.0) internal successors, (2313), 9 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,913 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 465 flow. Second operand 8 states and 955 transitions. [2023-09-01 05:27:14,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 54 transitions, 583 flow [2023-09-01 05:27:14,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 487 flow, removed 5 selfloop flow, removed 8 redundant places. [2023-09-01 05:27:14,917 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 411 flow [2023-09-01 05:27:14,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=411, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2023-09-01 05:27:14,918 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2023-09-01 05:27:14,918 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 411 flow [2023-09-01 05:27:14,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:14,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:14,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:14,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 05:27:14,919 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:14,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:14,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1637625285, now seen corresponding path program 1 times [2023-09-01 05:27:14,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:14,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279146901] [2023-09-01 05:27:14,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:14,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:15,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:15,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279146901] [2023-09-01 05:27:15,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279146901] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:15,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:15,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-01 05:27:15,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563500682] [2023-09-01 05:27:15,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:15,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 05:27:15,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:15,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 05:27:15,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-09-01 05:27:15,632 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-09-01 05:27:15,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 411 flow. Second operand has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:15,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:15,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-09-01 05:27:15,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:15,918 INFO L130 PetriNetUnfolder]: 130/271 cut-off events. [2023-09-01 05:27:15,918 INFO L131 PetriNetUnfolder]: For 780/780 co-relation queries the response was YES. [2023-09-01 05:27:15,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 271 events. 130/271 cut-off events. For 780/780 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1130 event pairs, 59 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 790. Up to 185 conditions per place. [2023-09-01 05:27:15,920 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 55 selfloop transitions, 17 changer transitions 3/75 dead transitions. [2023-09-01 05:27:15,920 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 75 transitions, 710 flow [2023-09-01 05:27:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1306 transitions. [2023-09-01 05:27:15,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46197382384152813 [2023-09-01 05:27:15,924 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1306 transitions. [2023-09-01 05:27:15,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1306 transitions. [2023-09-01 05:27:15,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:15,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1306 transitions. [2023-09-01 05:27:15,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 118.72727272727273) internal successors, (1306), 11 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:15,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:15,932 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:15,932 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 411 flow. Second operand 11 states and 1306 transitions. [2023-09-01 05:27:15,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 75 transitions, 710 flow [2023-09-01 05:27:15,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 649 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:15,937 INFO L231 Difference]: Finished difference. Result has 72 places, 55 transitions, 506 flow [2023-09-01 05:27:15,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=506, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2023-09-01 05:27:15,937 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 43 predicate places. [2023-09-01 05:27:15,938 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 506 flow [2023-09-01 05:27:15,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:15,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:15,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:15,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 05:27:15,939 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:15,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:15,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1637625284, now seen corresponding path program 1 times [2023-09-01 05:27:15,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:15,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607906067] [2023-09-01 05:27:15,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:15,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:16,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:16,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607906067] [2023-09-01 05:27:16,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607906067] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:16,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:16,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012131171] [2023-09-01 05:27:16,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:16,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:16,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:16,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:16,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:16,329 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-09-01 05:27:16,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 506 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,330 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:16,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-09-01 05:27:16,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:16,583 INFO L130 PetriNetUnfolder]: 145/331 cut-off events. [2023-09-01 05:27:16,583 INFO L131 PetriNetUnfolder]: For 903/903 co-relation queries the response was YES. [2023-09-01 05:27:16,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1321 conditions, 331 events. 145/331 cut-off events. For 903/903 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1585 event pairs, 13 based on Foata normal form. 8/339 useless extension candidates. Maximal degree in co-relation 1056. Up to 102 conditions per place. [2023-09-01 05:27:16,586 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 54 selfloop transitions, 29 changer transitions 3/86 dead transitions. [2023-09-01 05:27:16,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 86 transitions, 800 flow [2023-09-01 05:27:16,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:27:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:27:16,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1129 transitions. [2023-09-01 05:27:16,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48811067877215736 [2023-09-01 05:27:16,590 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1129 transitions. [2023-09-01 05:27:16,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1129 transitions. [2023-09-01 05:27:16,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:16,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1129 transitions. [2023-09-01 05:27:16,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 125.44444444444444) internal successors, (1129), 9 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,597 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,597 INFO L175 Difference]: Start difference. First operand has 72 places, 55 transitions, 506 flow. Second operand 9 states and 1129 transitions. [2023-09-01 05:27:16,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 86 transitions, 800 flow [2023-09-01 05:27:16,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 86 transitions, 787 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:16,602 INFO L231 Difference]: Finished difference. Result has 80 places, 60 transitions, 620 flow [2023-09-01 05:27:16,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=80, PETRI_TRANSITIONS=60} [2023-09-01 05:27:16,603 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 51 predicate places. [2023-09-01 05:27:16,603 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 60 transitions, 620 flow [2023-09-01 05:27:16,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,604 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:16,604 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:16,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 05:27:16,604 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:16,605 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:16,605 INFO L85 PathProgramCache]: Analyzing trace with hash 363149565, now seen corresponding path program 2 times [2023-09-01 05:27:16,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:16,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409051649] [2023-09-01 05:27:16,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:16,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:17,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:17,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:17,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409051649] [2023-09-01 05:27:17,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409051649] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:17,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:17,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:17,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340472127] [2023-09-01 05:27:17,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:17,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:17,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:17,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:17,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:17,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:27:17,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 60 transitions, 620 flow. Second operand has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:17,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:27:17,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:18,301 INFO L130 PetriNetUnfolder]: 217/489 cut-off events. [2023-09-01 05:27:18,301 INFO L131 PetriNetUnfolder]: For 2316/2316 co-relation queries the response was YES. [2023-09-01 05:27:18,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2127 conditions, 489 events. 217/489 cut-off events. For 2316/2316 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2661 event pairs, 38 based on Foata normal form. 15/504 useless extension candidates. Maximal degree in co-relation 1640. Up to 201 conditions per place. [2023-09-01 05:27:18,305 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 65 selfloop transitions, 69 changer transitions 11/145 dead transitions. [2023-09-01 05:27:18,305 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 145 transitions, 1504 flow [2023-09-01 05:27:18,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-09-01 05:27:18,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-09-01 05:27:18,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2432 transitions. [2023-09-01 05:27:18,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4506207152121549 [2023-09-01 05:27:18,311 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2432 transitions. [2023-09-01 05:27:18,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2432 transitions. [2023-09-01 05:27:18,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:18,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2432 transitions. [2023-09-01 05:27:18,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 115.80952380952381) internal successors, (2432), 21 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,325 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,325 INFO L175 Difference]: Start difference. First operand has 80 places, 60 transitions, 620 flow. Second operand 21 states and 2432 transitions. [2023-09-01 05:27:18,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 145 transitions, 1504 flow [2023-09-01 05:27:18,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 145 transitions, 1456 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-09-01 05:27:18,336 INFO L231 Difference]: Finished difference. Result has 100 places, 99 transitions, 1174 flow [2023-09-01 05:27:18,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1174, PETRI_PLACES=100, PETRI_TRANSITIONS=99} [2023-09-01 05:27:18,336 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 71 predicate places. [2023-09-01 05:27:18,337 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 99 transitions, 1174 flow [2023-09-01 05:27:18,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:18,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:18,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 05:27:18,338 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:18,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:18,338 INFO L85 PathProgramCache]: Analyzing trace with hash 381323248, now seen corresponding path program 2 times [2023-09-01 05:27:18,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:18,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349936582] [2023-09-01 05:27:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:18,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:18,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:18,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:18,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349936582] [2023-09-01 05:27:18,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349936582] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:18,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:18,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:18,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133382872] [2023-09-01 05:27:18,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:18,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:18,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:18,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:18,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:18,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-09-01 05:27:18,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 1174 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:18,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-09-01 05:27:18,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:19,207 INFO L130 PetriNetUnfolder]: 197/458 cut-off events. [2023-09-01 05:27:19,208 INFO L131 PetriNetUnfolder]: For 2856/2856 co-relation queries the response was YES. [2023-09-01 05:27:19,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2200 conditions, 458 events. 197/458 cut-off events. For 2856/2856 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2509 event pairs, 57 based on Foata normal form. 9/467 useless extension candidates. Maximal degree in co-relation 1900. Up to 174 conditions per place. [2023-09-01 05:27:19,212 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 68 selfloop transitions, 45 changer transitions 4/117 dead transitions. [2023-09-01 05:27:19,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 117 transitions, 1433 flow [2023-09-01 05:27:19,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:27:19,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:27:19,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1248 transitions. [2023-09-01 05:27:19,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4856031128404669 [2023-09-01 05:27:19,215 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1248 transitions. [2023-09-01 05:27:19,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1248 transitions. [2023-09-01 05:27:19,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:19,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1248 transitions. [2023-09-01 05:27:19,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.8) internal successors, (1248), 10 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,220 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,221 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 1174 flow. Second operand 10 states and 1248 transitions. [2023-09-01 05:27:19,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 117 transitions, 1433 flow [2023-09-01 05:27:19,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 117 transitions, 1273 flow, removed 47 selfloop flow, removed 8 redundant places. [2023-09-01 05:27:19,234 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 1066 flow [2023-09-01 05:27:19,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1066, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2023-09-01 05:27:19,234 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 73 predicate places. [2023-09-01 05:27:19,235 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 1066 flow [2023-09-01 05:27:19,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:19,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:19,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-09-01 05:27:19,236 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:19,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:19,236 INFO L85 PathProgramCache]: Analyzing trace with hash 364630678, now seen corresponding path program 3 times [2023-09-01 05:27:19,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:19,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322569928] [2023-09-01 05:27:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:19,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:19,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:19,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322569928] [2023-09-01 05:27:19,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322569928] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:19,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:19,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:19,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084318027] [2023-09-01 05:27:19,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:19,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:19,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:19,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:19,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:19,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-09-01 05:27:19,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 1066 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:19,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-09-01 05:27:19,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:20,132 INFO L130 PetriNetUnfolder]: 192/445 cut-off events. [2023-09-01 05:27:20,133 INFO L131 PetriNetUnfolder]: For 2447/2447 co-relation queries the response was YES. [2023-09-01 05:27:20,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 445 events. 192/445 cut-off events. For 2447/2447 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2384 event pairs, 42 based on Foata normal form. 6/451 useless extension candidates. Maximal degree in co-relation 1863. Up to 204 conditions per place. [2023-09-01 05:27:20,136 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 56 selfloop transitions, 56 changer transitions 3/115 dead transitions. [2023-09-01 05:27:20,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 115 transitions, 1390 flow [2023-09-01 05:27:20,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:20,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:20,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1483 transitions. [2023-09-01 05:27:20,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4808690012970169 [2023-09-01 05:27:20,140 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1483 transitions. [2023-09-01 05:27:20,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1483 transitions. [2023-09-01 05:27:20,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:20,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1483 transitions. [2023-09-01 05:27:20,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 123.58333333333333) internal successors, (1483), 12 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,148 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,148 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 1066 flow. Second operand 12 states and 1483 transitions. [2023-09-01 05:27:20,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 115 transitions, 1390 flow [2023-09-01 05:27:20,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 115 transitions, 1323 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:20,158 INFO L231 Difference]: Finished difference. Result has 108 places, 96 transitions, 1236 flow [2023-09-01 05:27:20,158 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1236, PETRI_PLACES=108, PETRI_TRANSITIONS=96} [2023-09-01 05:27:20,159 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 79 predicate places. [2023-09-01 05:27:20,159 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 96 transitions, 1236 flow [2023-09-01 05:27:20,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:20,160 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:20,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-09-01 05:27:20,160 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:20,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:20,160 INFO L85 PathProgramCache]: Analyzing trace with hash 384551727, now seen corresponding path program 1 times [2023-09-01 05:27:20,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:20,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529530196] [2023-09-01 05:27:20,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:20,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:20,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529530196] [2023-09-01 05:27:20,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529530196] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:20,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:20,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:20,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491946705] [2023-09-01 05:27:20,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:20,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:20,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:20,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:20,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:21,032 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-09-01 05:27:21,033 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 96 transitions, 1236 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:21,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-09-01 05:27:21,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:21,435 INFO L130 PetriNetUnfolder]: 189/453 cut-off events. [2023-09-01 05:27:21,435 INFO L131 PetriNetUnfolder]: For 3083/3083 co-relation queries the response was YES. [2023-09-01 05:27:21,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2292 conditions, 453 events. 189/453 cut-off events. For 3083/3083 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2512 event pairs, 58 based on Foata normal form. 2/455 useless extension candidates. Maximal degree in co-relation 2053. Up to 318 conditions per place. [2023-09-01 05:27:21,439 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 64 selfloop transitions, 36 changer transitions 18/118 dead transitions. [2023-09-01 05:27:21,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 118 transitions, 1646 flow [2023-09-01 05:27:21,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:21,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1296 transitions. [2023-09-01 05:27:21,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45843650512911216 [2023-09-01 05:27:21,442 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1296 transitions. [2023-09-01 05:27:21,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1296 transitions. [2023-09-01 05:27:21,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:21,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1296 transitions. [2023-09-01 05:27:21,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.81818181818181) internal successors, (1296), 11 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,447 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,447 INFO L175 Difference]: Start difference. First operand has 108 places, 96 transitions, 1236 flow. Second operand 11 states and 1296 transitions. [2023-09-01 05:27:21,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 118 transitions, 1646 flow [2023-09-01 05:27:21,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 118 transitions, 1566 flow, removed 13 selfloop flow, removed 9 redundant places. [2023-09-01 05:27:21,459 INFO L231 Difference]: Finished difference. Result has 110 places, 93 transitions, 1202 flow [2023-09-01 05:27:21,459 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1202, PETRI_PLACES=110, PETRI_TRANSITIONS=93} [2023-09-01 05:27:21,460 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 81 predicate places. [2023-09-01 05:27:21,460 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 93 transitions, 1202 flow [2023-09-01 05:27:21,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:21,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:21,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-09-01 05:27:21,461 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:21,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:21,461 INFO L85 PathProgramCache]: Analyzing trace with hash 364630679, now seen corresponding path program 3 times [2023-09-01 05:27:21,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:21,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356608615] [2023-09-01 05:27:21,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:21,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:22,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356608615] [2023-09-01 05:27:22,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356608615] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:22,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:22,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:22,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771196777] [2023-09-01 05:27:22,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:22,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:22,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:22,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:22,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:22,393 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:27:22,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 93 transitions, 1202 flow. Second operand has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:22,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:27:22,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:22,875 INFO L130 PetriNetUnfolder]: 166/416 cut-off events. [2023-09-01 05:27:22,875 INFO L131 PetriNetUnfolder]: For 2868/2868 co-relation queries the response was YES. [2023-09-01 05:27:22,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2126 conditions, 416 events. 166/416 cut-off events. For 2868/2868 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2301 event pairs, 28 based on Foata normal form. 9/425 useless extension candidates. Maximal degree in co-relation 1988. Up to 121 conditions per place. [2023-09-01 05:27:22,879 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 51 selfloop transitions, 66 changer transitions 4/121 dead transitions. [2023-09-01 05:27:22,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 121 transitions, 1590 flow [2023-09-01 05:27:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-01 05:27:22,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-09-01 05:27:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1843 transitions. [2023-09-01 05:27:22,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4482003891050584 [2023-09-01 05:27:22,882 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1843 transitions. [2023-09-01 05:27:22,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1843 transitions. [2023-09-01 05:27:22,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:22,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1843 transitions. [2023-09-01 05:27:22,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 115.1875) internal successors, (1843), 16 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,890 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,890 INFO L175 Difference]: Start difference. First operand has 110 places, 93 transitions, 1202 flow. Second operand 16 states and 1843 transitions. [2023-09-01 05:27:22,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 121 transitions, 1590 flow [2023-09-01 05:27:22,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 121 transitions, 1474 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:22,903 INFO L231 Difference]: Finished difference. Result has 118 places, 98 transitions, 1346 flow [2023-09-01 05:27:22,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1346, PETRI_PLACES=118, PETRI_TRANSITIONS=98} [2023-09-01 05:27:22,904 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 89 predicate places. [2023-09-01 05:27:22,904 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 98 transitions, 1346 flow [2023-09-01 05:27:22,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:22,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:22,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-09-01 05:27:22,905 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:22,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:22,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1625384625, now seen corresponding path program 4 times [2023-09-01 05:27:22,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:22,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137243389] [2023-09-01 05:27:22,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:22,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:23,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:23,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137243389] [2023-09-01 05:27:23,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137243389] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:23,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:23,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:23,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575007109] [2023-09-01 05:27:23,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:23,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:23,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:23,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:23,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-09-01 05:27:23,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 98 transitions, 1346 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:23,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-09-01 05:27:23,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:24,347 INFO L130 PetriNetUnfolder]: 164/409 cut-off events. [2023-09-01 05:27:24,347 INFO L131 PetriNetUnfolder]: For 2981/2981 co-relation queries the response was YES. [2023-09-01 05:27:24,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 409 events. 164/409 cut-off events. For 2981/2981 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2253 event pairs, 18 based on Foata normal form. 3/412 useless extension candidates. Maximal degree in co-relation 2054. Up to 136 conditions per place. [2023-09-01 05:27:24,350 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 46 selfloop transitions, 69 changer transitions 4/119 dead transitions. [2023-09-01 05:27:24,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 119 transitions, 1682 flow [2023-09-01 05:27:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-01 05:27:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-09-01 05:27:24,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1868 transitions. [2023-09-01 05:27:24,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45428015564202334 [2023-09-01 05:27:24,353 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1868 transitions. [2023-09-01 05:27:24,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1868 transitions. [2023-09-01 05:27:24,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:24,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1868 transitions. [2023-09-01 05:27:24,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 116.75) internal successors, (1868), 16 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,361 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,361 INFO L175 Difference]: Start difference. First operand has 118 places, 98 transitions, 1346 flow. Second operand 16 states and 1868 transitions. [2023-09-01 05:27:24,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 119 transitions, 1682 flow [2023-09-01 05:27:24,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 119 transitions, 1635 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:24,374 INFO L231 Difference]: Finished difference. Result has 130 places, 100 transitions, 1533 flow [2023-09-01 05:27:24,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1291, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1533, PETRI_PLACES=130, PETRI_TRANSITIONS=100} [2023-09-01 05:27:24,374 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 101 predicate places. [2023-09-01 05:27:24,375 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 100 transitions, 1533 flow [2023-09-01 05:27:24,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:24,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:24,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-09-01 05:27:24,375 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:24,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:24,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1625384624, now seen corresponding path program 4 times [2023-09-01 05:27:24,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:24,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787478323] [2023-09-01 05:27:24,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:24,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:24,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:24,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:24,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787478323] [2023-09-01 05:27:24,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787478323] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:24,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:24,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-01 05:27:24,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455460541] [2023-09-01 05:27:24,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:24,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 05:27:24,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:24,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 05:27:24,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-09-01 05:27:25,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-09-01 05:27:25,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 100 transitions, 1533 flow. Second operand has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:25,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-09-01 05:27:25,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:25,677 INFO L130 PetriNetUnfolder]: 159/395 cut-off events. [2023-09-01 05:27:25,677 INFO L131 PetriNetUnfolder]: For 3812/3812 co-relation queries the response was YES. [2023-09-01 05:27:25,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 395 events. 159/395 cut-off events. For 3812/3812 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2152 event pairs, 20 based on Foata normal form. 11/406 useless extension candidates. Maximal degree in co-relation 2131. Up to 208 conditions per place. [2023-09-01 05:27:25,682 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 49 selfloop transitions, 53 changer transitions 2/104 dead transitions. [2023-09-01 05:27:25,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 104 transitions, 1715 flow [2023-09-01 05:27:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:25,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:25,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1296 transitions. [2023-09-01 05:27:25,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45843650512911216 [2023-09-01 05:27:25,684 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1296 transitions. [2023-09-01 05:27:25,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1296 transitions. [2023-09-01 05:27:25,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:25,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1296 transitions. [2023-09-01 05:27:25,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.81818181818181) internal successors, (1296), 11 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,689 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,690 INFO L175 Difference]: Start difference. First operand has 130 places, 100 transitions, 1533 flow. Second operand 11 states and 1296 transitions. [2023-09-01 05:27:25,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 104 transitions, 1715 flow [2023-09-01 05:27:25,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 104 transitions, 1585 flow, removed 7 selfloop flow, removed 13 redundant places. [2023-09-01 05:27:25,705 INFO L231 Difference]: Finished difference. Result has 127 places, 95 transitions, 1484 flow [2023-09-01 05:27:25,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1484, PETRI_PLACES=127, PETRI_TRANSITIONS=95} [2023-09-01 05:27:25,706 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 98 predicate places. [2023-09-01 05:27:25,706 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 95 transitions, 1484 flow [2023-09-01 05:27:25,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:25,706 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:25,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-09-01 05:27:25,707 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:25,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:25,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2103478471, now seen corresponding path program 5 times [2023-09-01 05:27:25,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:25,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637116989] [2023-09-01 05:27:25,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:25,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:26,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:26,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637116989] [2023-09-01 05:27:26,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637116989] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:26,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:26,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:26,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544166676] [2023-09-01 05:27:26,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:26,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:26,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:26,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:26,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:26,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-09-01 05:27:26,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 95 transitions, 1484 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:26,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:26,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-09-01 05:27:26,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:26,995 INFO L130 PetriNetUnfolder]: 163/415 cut-off events. [2023-09-01 05:27:26,995 INFO L131 PetriNetUnfolder]: For 3981/3981 co-relation queries the response was YES. [2023-09-01 05:27:26,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 415 events. 163/415 cut-off events. For 3981/3981 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2312 event pairs, 37 based on Foata normal form. 3/418 useless extension candidates. Maximal degree in co-relation 2197. Up to 272 conditions per place. [2023-09-01 05:27:27,001 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 65 selfloop transitions, 47 changer transitions 7/119 dead transitions. [2023-09-01 05:27:27,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 119 transitions, 1835 flow [2023-09-01 05:27:27,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 05:27:27,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 05:27:27,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1531 transitions. [2023-09-01 05:27:27,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4582460341215205 [2023-09-01 05:27:27,005 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1531 transitions. [2023-09-01 05:27:27,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1531 transitions. [2023-09-01 05:27:27,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:27,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1531 transitions. [2023-09-01 05:27:27,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.76923076923077) internal successors, (1531), 13 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,015 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,015 INFO L175 Difference]: Start difference. First operand has 127 places, 95 transitions, 1484 flow. Second operand 13 states and 1531 transitions. [2023-09-01 05:27:27,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 119 transitions, 1835 flow [2023-09-01 05:27:27,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 119 transitions, 1756 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-09-01 05:27:27,031 INFO L231 Difference]: Finished difference. Result has 133 places, 98 transitions, 1545 flow [2023-09-01 05:27:27,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1406, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1545, PETRI_PLACES=133, PETRI_TRANSITIONS=98} [2023-09-01 05:27:27,031 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 104 predicate places. [2023-09-01 05:27:27,031 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 98 transitions, 1545 flow [2023-09-01 05:27:27,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:27,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:27,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-09-01 05:27:27,033 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:27,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:27,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2097868228, now seen corresponding path program 1 times [2023-09-01 05:27:27,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:27,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376556912] [2023-09-01 05:27:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:27,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:27,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:27,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:27,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376556912] [2023-09-01 05:27:27,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376556912] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:27,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:27,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:27,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906972788] [2023-09-01 05:27:27,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:27,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:27,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:27,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:27,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-09-01 05:27:27,403 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 98 transitions, 1545 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,403 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:27,403 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-09-01 05:27:27,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:27,651 INFO L130 PetriNetUnfolder]: 163/419 cut-off events. [2023-09-01 05:27:27,651 INFO L131 PetriNetUnfolder]: For 3744/3744 co-relation queries the response was YES. [2023-09-01 05:27:27,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 419 events. 163/419 cut-off events. For 3744/3744 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2362 event pairs, 29 based on Foata normal form. 2/421 useless extension candidates. Maximal degree in co-relation 2325. Up to 155 conditions per place. [2023-09-01 05:27:27,655 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 45 selfloop transitions, 70 changer transitions 4/119 dead transitions. [2023-09-01 05:27:27,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 119 transitions, 1883 flow [2023-09-01 05:27:27,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:27:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:27:27,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1246 transitions. [2023-09-01 05:27:27,658 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4848249027237354 [2023-09-01 05:27:27,659 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1246 transitions. [2023-09-01 05:27:27,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1246 transitions. [2023-09-01 05:27:27,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:27,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1246 transitions. [2023-09-01 05:27:27,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.6) internal successors, (1246), 10 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,664 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,664 INFO L175 Difference]: Start difference. First operand has 133 places, 98 transitions, 1545 flow. Second operand 10 states and 1246 transitions. [2023-09-01 05:27:27,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 119 transitions, 1883 flow [2023-09-01 05:27:27,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 119 transitions, 1774 flow, removed 4 selfloop flow, removed 9 redundant places. [2023-09-01 05:27:27,679 INFO L231 Difference]: Finished difference. Result has 135 places, 101 transitions, 1629 flow [2023-09-01 05:27:27,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1629, PETRI_PLACES=135, PETRI_TRANSITIONS=101} [2023-09-01 05:27:27,679 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 106 predicate places. [2023-09-01 05:27:27,680 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 101 transitions, 1629 flow [2023-09-01 05:27:27,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:27,680 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:27,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-09-01 05:27:27,681 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:27,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:27,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2097868229, now seen corresponding path program 2 times [2023-09-01 05:27:27,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:27,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343222682] [2023-09-01 05:27:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:27,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:28,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:28,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343222682] [2023-09-01 05:27:28,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343222682] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:28,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:28,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:28,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871297376] [2023-09-01 05:27:28,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:28,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:28,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:28,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:28,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:28,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-09-01 05:27:28,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 101 transitions, 1629 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:28,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-09-01 05:27:28,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:28,936 INFO L130 PetriNetUnfolder]: 163/443 cut-off events. [2023-09-01 05:27:28,936 INFO L131 PetriNetUnfolder]: For 4131/4131 co-relation queries the response was YES. [2023-09-01 05:27:28,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 443 events. 163/443 cut-off events. For 4131/4131 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2651 event pairs, 53 based on Foata normal form. 6/449 useless extension candidates. Maximal degree in co-relation 2534. Up to 276 conditions per place. [2023-09-01 05:27:28,940 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 64 selfloop transitions, 47 changer transitions 24/135 dead transitions. [2023-09-01 05:27:28,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 135 transitions, 2141 flow [2023-09-01 05:27:28,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-01 05:27:28,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-09-01 05:27:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1876 transitions. [2023-09-01 05:27:28,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45622568093385213 [2023-09-01 05:27:28,943 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1876 transitions. [2023-09-01 05:27:28,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1876 transitions. [2023-09-01 05:27:28,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:28,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1876 transitions. [2023-09-01 05:27:28,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 117.25) internal successors, (1876), 16 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,951 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,951 INFO L175 Difference]: Start difference. First operand has 135 places, 101 transitions, 1629 flow. Second operand 16 states and 1876 transitions. [2023-09-01 05:27:28,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 135 transitions, 2141 flow [2023-09-01 05:27:28,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 135 transitions, 1967 flow, removed 16 selfloop flow, removed 10 redundant places. [2023-09-01 05:27:28,968 INFO L231 Difference]: Finished difference. Result has 140 places, 99 transitions, 1518 flow [2023-09-01 05:27:28,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1439, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1518, PETRI_PLACES=140, PETRI_TRANSITIONS=99} [2023-09-01 05:27:28,968 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 111 predicate places. [2023-09-01 05:27:28,968 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 99 transitions, 1518 flow [2023-09-01 05:27:28,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:28,969 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:28,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-09-01 05:27:28,969 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:28,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:28,969 INFO L85 PathProgramCache]: Analyzing trace with hash 2100797281, now seen corresponding path program 6 times [2023-09-01 05:27:28,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:28,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698800539] [2023-09-01 05:27:28,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:28,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:28,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:29,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:29,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698800539] [2023-09-01 05:27:29,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698800539] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:29,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:29,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:29,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877153312] [2023-09-01 05:27:29,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:29,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:29,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:29,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:29,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:29,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-09-01 05:27:29,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 99 transitions, 1518 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:29,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:29,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-09-01 05:27:29,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:30,215 INFO L130 PetriNetUnfolder]: 102/294 cut-off events. [2023-09-01 05:27:30,215 INFO L131 PetriNetUnfolder]: For 2680/2680 co-relation queries the response was YES. [2023-09-01 05:27:30,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1966 conditions, 294 events. 102/294 cut-off events. For 2680/2680 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1584 event pairs, 22 based on Foata normal form. 3/297 useless extension candidates. Maximal degree in co-relation 1829. Up to 167 conditions per place. [2023-09-01 05:27:30,219 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 61 selfloop transitions, 46 changer transitions 3/110 dead transitions. [2023-09-01 05:27:30,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 110 transitions, 1766 flow [2023-09-01 05:27:30,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:30,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1289 transitions. [2023-09-01 05:27:30,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45596038203042094 [2023-09-01 05:27:30,222 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1289 transitions. [2023-09-01 05:27:30,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1289 transitions. [2023-09-01 05:27:30,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:30,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1289 transitions. [2023-09-01 05:27:30,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.18181818181819) internal successors, (1289), 11 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,228 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,229 INFO L175 Difference]: Start difference. First operand has 140 places, 99 transitions, 1518 flow. Second operand 11 states and 1289 transitions. [2023-09-01 05:27:30,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 110 transitions, 1766 flow [2023-09-01 05:27:30,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 110 transitions, 1652 flow, removed 8 selfloop flow, removed 11 redundant places. [2023-09-01 05:27:30,240 INFO L231 Difference]: Finished difference. Result has 137 places, 98 transitions, 1489 flow [2023-09-01 05:27:30,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1489, PETRI_PLACES=137, PETRI_TRANSITIONS=98} [2023-09-01 05:27:30,242 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2023-09-01 05:27:30,242 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 98 transitions, 1489 flow [2023-09-01 05:27:30,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:30,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:30,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-09-01 05:27:30,243 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:30,243 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:30,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2103490078, now seen corresponding path program 2 times [2023-09-01 05:27:30,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:30,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454498692] [2023-09-01 05:27:30,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:30,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:30,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:30,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:30,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454498692] [2023-09-01 05:27:30,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454498692] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:30,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:30,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:30,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563768055] [2023-09-01 05:27:30,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:30,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:30,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:30,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:30,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:30,672 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-09-01 05:27:30,673 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 98 transitions, 1489 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,673 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:30,673 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-09-01 05:27:30,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:30,899 INFO L130 PetriNetUnfolder]: 99/285 cut-off events. [2023-09-01 05:27:30,900 INFO L131 PetriNetUnfolder]: For 2634/2634 co-relation queries the response was YES. [2023-09-01 05:27:30,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1905 conditions, 285 events. 99/285 cut-off events. For 2634/2634 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1507 event pairs, 37 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 1704. Up to 105 conditions per place. [2023-09-01 05:27:30,907 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 55 selfloop transitions, 52 changer transitions 3/110 dead transitions. [2023-09-01 05:27:30,907 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 110 transitions, 1745 flow [2023-09-01 05:27:30,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:27:30,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:27:30,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1241 transitions. [2023-09-01 05:27:30,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4828793774319066 [2023-09-01 05:27:30,911 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1241 transitions. [2023-09-01 05:27:30,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1241 transitions. [2023-09-01 05:27:30,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:30,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1241 transitions. [2023-09-01 05:27:30,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.1) internal successors, (1241), 10 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,915 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,915 INFO L175 Difference]: Start difference. First operand has 137 places, 98 transitions, 1489 flow. Second operand 10 states and 1241 transitions. [2023-09-01 05:27:30,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 110 transitions, 1745 flow [2023-09-01 05:27:30,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 110 transitions, 1631 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-09-01 05:27:30,926 INFO L231 Difference]: Finished difference. Result has 136 places, 95 transitions, 1449 flow [2023-09-01 05:27:30,926 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1366, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1449, PETRI_PLACES=136, PETRI_TRANSITIONS=95} [2023-09-01 05:27:30,926 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 107 predicate places. [2023-09-01 05:27:30,927 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 95 transitions, 1449 flow [2023-09-01 05:27:30,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:30,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:30,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-09-01 05:27:30,927 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:30,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:30,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2097850559, now seen corresponding path program 3 times [2023-09-01 05:27:30,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:30,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77905871] [2023-09-01 05:27:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:30,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:31,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:31,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:31,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77905871] [2023-09-01 05:27:31,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77905871] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:31,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:31,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:31,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674010246] [2023-09-01 05:27:31,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:31,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:31,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:31,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:31,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:31,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:27:31,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 95 transitions, 1449 flow. Second operand has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:31,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:31,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:27:31,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:32,091 INFO L130 PetriNetUnfolder]: 88/260 cut-off events. [2023-09-01 05:27:32,091 INFO L131 PetriNetUnfolder]: For 2586/2586 co-relation queries the response was YES. [2023-09-01 05:27:32,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1774 conditions, 260 events. 88/260 cut-off events. For 2586/2586 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1327 event pairs, 24 based on Foata normal form. 2/262 useless extension candidates. Maximal degree in co-relation 1606. Up to 173 conditions per place. [2023-09-01 05:27:32,093 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 57 selfloop transitions, 42 changer transitions 6/105 dead transitions. [2023-09-01 05:27:32,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 105 transitions, 1683 flow [2023-09-01 05:27:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-01 05:27:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-09-01 05:27:32,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1600 transitions. [2023-09-01 05:27:32,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44469149527515284 [2023-09-01 05:27:32,110 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1600 transitions. [2023-09-01 05:27:32,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1600 transitions. [2023-09-01 05:27:32,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:32,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1600 transitions. [2023-09-01 05:27:32,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.28571428571429) internal successors, (1600), 14 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:32,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:32,119 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:32,119 INFO L175 Difference]: Start difference. First operand has 136 places, 95 transitions, 1449 flow. Second operand 14 states and 1600 transitions. [2023-09-01 05:27:32,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 105 transitions, 1683 flow [2023-09-01 05:27:32,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 105 transitions, 1576 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:32,129 INFO L231 Difference]: Finished difference. Result has 137 places, 91 transitions, 1391 flow [2023-09-01 05:27:32,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1332, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1391, PETRI_PLACES=137, PETRI_TRANSITIONS=91} [2023-09-01 05:27:32,130 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2023-09-01 05:27:32,130 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 91 transitions, 1391 flow [2023-09-01 05:27:32,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:32,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:32,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:32,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-09-01 05:27:32,131 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:32,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:32,131 INFO L85 PathProgramCache]: Analyzing trace with hash 249712732, now seen corresponding path program 1 times [2023-09-01 05:27:32,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:32,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951126176] [2023-09-01 05:27:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:32,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:32,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:32,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951126176] [2023-09-01 05:27:32,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951126176] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:32,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:32,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:32,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166764759] [2023-09-01 05:27:32,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:32,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:32,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:32,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:32,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:33,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:27:33,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 91 transitions, 1391 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:33,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:33,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:27:33,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:33,510 INFO L130 PetriNetUnfolder]: 96/312 cut-off events. [2023-09-01 05:27:33,511 INFO L131 PetriNetUnfolder]: For 3523/3523 co-relation queries the response was YES. [2023-09-01 05:27:33,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 312 events. 96/312 cut-off events. For 3523/3523 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1833 event pairs, 13 based on Foata normal form. 4/316 useless extension candidates. Maximal degree in co-relation 1755. Up to 105 conditions per place. [2023-09-01 05:27:33,513 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 112 selfloop transitions, 35 changer transitions 0/147 dead transitions. [2023-09-01 05:27:33,513 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 147 transitions, 2526 flow [2023-09-01 05:27:33,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:33,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1376 transitions. [2023-09-01 05:27:33,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461738002594034 [2023-09-01 05:27:33,515 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1376 transitions. [2023-09-01 05:27:33,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1376 transitions. [2023-09-01 05:27:33,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:33,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1376 transitions. [2023-09-01 05:27:33,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.66666666666667) internal successors, (1376), 12 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:33,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:33,520 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:33,520 INFO L175 Difference]: Start difference. First operand has 137 places, 91 transitions, 1391 flow. Second operand 12 states and 1376 transitions. [2023-09-01 05:27:33,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 147 transitions, 2526 flow [2023-09-01 05:27:33,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 147 transitions, 2328 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-09-01 05:27:33,532 INFO L231 Difference]: Finished difference. Result has 132 places, 110 transitions, 1727 flow [2023-09-01 05:27:33,532 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1255, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1727, PETRI_PLACES=132, PETRI_TRANSITIONS=110} [2023-09-01 05:27:33,532 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 103 predicate places. [2023-09-01 05:27:33,532 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 110 transitions, 1727 flow [2023-09-01 05:27:33,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:33,533 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:33,533 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:33,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-09-01 05:27:33,533 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:33,533 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:33,534 INFO L85 PathProgramCache]: Analyzing trace with hash 374437232, now seen corresponding path program 2 times [2023-09-01 05:27:33,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:33,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798145922] [2023-09-01 05:27:33,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:33,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:34,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:34,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798145922] [2023-09-01 05:27:34,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798145922] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:34,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:34,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:27:34,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653369845] [2023-09-01 05:27:34,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:34,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:27:34,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:34,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:27:34,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:27:34,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 257 [2023-09-01 05:27:34,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 110 transitions, 1727 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:34,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:34,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 257 [2023-09-01 05:27:34,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:35,305 INFO L130 PetriNetUnfolder]: 95/369 cut-off events. [2023-09-01 05:27:35,305 INFO L131 PetriNetUnfolder]: For 4570/4570 co-relation queries the response was YES. [2023-09-01 05:27:35,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2570 conditions, 369 events. 95/369 cut-off events. For 4570/4570 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2485 event pairs, 19 based on Foata normal form. 18/387 useless extension candidates. Maximal degree in co-relation 2251. Up to 120 conditions per place. [2023-09-01 05:27:35,308 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 61 selfloop transitions, 90 changer transitions 0/151 dead transitions. [2023-09-01 05:27:35,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 151 transitions, 2499 flow [2023-09-01 05:27:35,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-01 05:27:35,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-09-01 05:27:35,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1520 transitions. [2023-09-01 05:27:35,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4224569205113952 [2023-09-01 05:27:35,311 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1520 transitions. [2023-09-01 05:27:35,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1520 transitions. [2023-09-01 05:27:35,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:35,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1520 transitions. [2023-09-01 05:27:35,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 108.57142857142857) internal successors, (1520), 14 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,316 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,317 INFO L175 Difference]: Start difference. First operand has 132 places, 110 transitions, 1727 flow. Second operand 14 states and 1520 transitions. [2023-09-01 05:27:35,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 151 transitions, 2499 flow [2023-09-01 05:27:35,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 151 transitions, 2466 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:35,330 INFO L231 Difference]: Finished difference. Result has 146 places, 132 transitions, 2386 flow [2023-09-01 05:27:35,331 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1697, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2386, PETRI_PLACES=146, PETRI_TRANSITIONS=132} [2023-09-01 05:27:35,331 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 117 predicate places. [2023-09-01 05:27:35,331 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 132 transitions, 2386 flow [2023-09-01 05:27:35,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,331 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:35,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:35,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-09-01 05:27:35,332 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:35,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:35,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1174441809, now seen corresponding path program 1 times [2023-09-01 05:27:35,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:35,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742422392] [2023-09-01 05:27:35,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:35,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:35,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:35,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742422392] [2023-09-01 05:27:35,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742422392] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:35,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:35,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:27:35,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838633970] [2023-09-01 05:27:35,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:35,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:27:35,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:35,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:27:35,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:27:36,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-09-01 05:27:36,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 132 transitions, 2386 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:36,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:36,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-09-01 05:27:36,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:36,815 INFO L130 PetriNetUnfolder]: 94/370 cut-off events. [2023-09-01 05:27:36,815 INFO L131 PetriNetUnfolder]: For 5804/5804 co-relation queries the response was YES. [2023-09-01 05:27:36,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2892 conditions, 370 events. 94/370 cut-off events. For 5804/5804 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2493 event pairs, 44 based on Foata normal form. 2/372 useless extension candidates. Maximal degree in co-relation 2547. Up to 252 conditions per place. [2023-09-01 05:27:36,818 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 128 selfloop transitions, 28 changer transitions 4/160 dead transitions. [2023-09-01 05:27:36,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 160 transitions, 3032 flow [2023-09-01 05:27:36,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 05:27:36,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 05:27:36,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1425 transitions. [2023-09-01 05:27:36,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42651900628554323 [2023-09-01 05:27:36,821 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1425 transitions. [2023-09-01 05:27:36,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1425 transitions. [2023-09-01 05:27:36,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:36,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1425 transitions. [2023-09-01 05:27:36,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 109.61538461538461) internal successors, (1425), 13 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:36,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:36,840 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:36,840 INFO L175 Difference]: Start difference. First operand has 146 places, 132 transitions, 2386 flow. Second operand 13 states and 1425 transitions. [2023-09-01 05:27:36,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 160 transitions, 3032 flow [2023-09-01 05:27:36,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 160 transitions, 2947 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:36,860 INFO L231 Difference]: Finished difference. Result has 157 places, 139 transitions, 2538 flow [2023-09-01 05:27:36,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2308, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2538, PETRI_PLACES=157, PETRI_TRANSITIONS=139} [2023-09-01 05:27:36,866 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 128 predicate places. [2023-09-01 05:27:36,867 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 139 transitions, 2538 flow [2023-09-01 05:27:36,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:36,867 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:36,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:36,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-09-01 05:27:36,868 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:36,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash -534982208, now seen corresponding path program 3 times [2023-09-01 05:27:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:36,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472128566] [2023-09-01 05:27:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:37,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:37,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:37,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472128566] [2023-09-01 05:27:37,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472128566] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:37,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:37,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:27:37,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108136741] [2023-09-01 05:27:37,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:37,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:27:37,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:37,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:27:37,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:27:38,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 257 [2023-09-01 05:27:38,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 139 transitions, 2538 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:38,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:38,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 257 [2023-09-01 05:27:38,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:38,482 INFO L130 PetriNetUnfolder]: 94/372 cut-off events. [2023-09-01 05:27:38,482 INFO L131 PetriNetUnfolder]: For 6099/6099 co-relation queries the response was YES. [2023-09-01 05:27:38,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 372 events. 94/372 cut-off events. For 6099/6099 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2500 event pairs, 32 based on Foata normal form. 2/374 useless extension candidates. Maximal degree in co-relation 2823. Up to 231 conditions per place. [2023-09-01 05:27:38,485 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 123 selfloop transitions, 36 changer transitions 0/159 dead transitions. [2023-09-01 05:27:38,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 159 transitions, 3070 flow [2023-09-01 05:27:38,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 05:27:38,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 05:27:38,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1396 transitions. [2023-09-01 05:27:38,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41783897036815326 [2023-09-01 05:27:38,487 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1396 transitions. [2023-09-01 05:27:38,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1396 transitions. [2023-09-01 05:27:38,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:38,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1396 transitions. [2023-09-01 05:27:38,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.38461538461539) internal successors, (1396), 13 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:38,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:38,493 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:38,493 INFO L175 Difference]: Start difference. First operand has 157 places, 139 transitions, 2538 flow. Second operand 13 states and 1396 transitions. [2023-09-01 05:27:38,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 159 transitions, 3070 flow [2023-09-01 05:27:38,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 159 transitions, 3048 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:38,514 INFO L231 Difference]: Finished difference. Result has 164 places, 147 transitions, 2753 flow [2023-09-01 05:27:38,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2518, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2753, PETRI_PLACES=164, PETRI_TRANSITIONS=147} [2023-09-01 05:27:38,515 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 135 predicate places. [2023-09-01 05:27:38,515 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 147 transitions, 2753 flow [2023-09-01 05:27:38,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:38,516 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:38,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:38,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-09-01 05:27:38,516 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:38,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash -646545344, now seen corresponding path program 4 times [2023-09-01 05:27:38,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:38,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534006027] [2023-09-01 05:27:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:38,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:38,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:38,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:38,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534006027] [2023-09-01 05:27:38,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534006027] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:38,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:38,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:38,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034262329] [2023-09-01 05:27:38,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:38,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:38,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:38,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:38,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:39,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:27:39,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 147 transitions, 2753 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:39,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:27:39,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:39,654 INFO L130 PetriNetUnfolder]: 96/401 cut-off events. [2023-09-01 05:27:39,654 INFO L131 PetriNetUnfolder]: For 6808/6808 co-relation queries the response was YES. [2023-09-01 05:27:39,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3264 conditions, 401 events. 96/401 cut-off events. For 6808/6808 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2868 event pairs, 11 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 3127. Up to 148 conditions per place. [2023-09-01 05:27:39,658 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 133 selfloop transitions, 60 changer transitions 1/194 dead transitions. [2023-09-01 05:27:39,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 194 transitions, 3778 flow [2023-09-01 05:27:39,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:39,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1259 transitions. [2023-09-01 05:27:39,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44534842589317297 [2023-09-01 05:27:39,660 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1259 transitions. [2023-09-01 05:27:39,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1259 transitions. [2023-09-01 05:27:39,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:39,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1259 transitions. [2023-09-01 05:27:39,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.45454545454545) internal successors, (1259), 11 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,665 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,665 INFO L175 Difference]: Start difference. First operand has 164 places, 147 transitions, 2753 flow. Second operand 11 states and 1259 transitions. [2023-09-01 05:27:39,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 194 transitions, 3778 flow [2023-09-01 05:27:39,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 194 transitions, 3684 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:39,689 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 3246 flow [2023-09-01 05:27:39,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2666, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3246, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2023-09-01 05:27:39,690 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 141 predicate places. [2023-09-01 05:27:39,690 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 3246 flow [2023-09-01 05:27:39,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:39,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:39,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-09-01 05:27:39,691 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:39,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:39,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1409270079, now seen corresponding path program 2 times [2023-09-01 05:27:39,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:39,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844655910] [2023-09-01 05:27:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:40,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:40,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844655910] [2023-09-01 05:27:40,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844655910] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:40,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:40,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:27:40,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647093017] [2023-09-01 05:27:40,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:40,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:27:40,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:40,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:27:40,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:27:40,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-09-01 05:27:40,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 3246 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:40,748 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:40,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-09-01 05:27:40,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:41,279 INFO L130 PetriNetUnfolder]: 95/397 cut-off events. [2023-09-01 05:27:41,280 INFO L131 PetriNetUnfolder]: For 7664/7664 co-relation queries the response was YES. [2023-09-01 05:27:41,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3412 conditions, 397 events. 95/397 cut-off events. For 7664/7664 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2821 event pairs, 36 based on Foata normal form. 2/399 useless extension candidates. Maximal degree in co-relation 3272. Up to 271 conditions per place. [2023-09-01 05:27:41,283 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 92 selfloop transitions, 77 changer transitions 13/182 dead transitions. [2023-09-01 05:27:41,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 3742 flow [2023-09-01 05:27:41,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-01 05:27:41,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-09-01 05:27:41,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1589 transitions. [2023-09-01 05:27:41,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4121919584954604 [2023-09-01 05:27:41,284 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1589 transitions. [2023-09-01 05:27:41,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1589 transitions. [2023-09-01 05:27:41,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:41,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1589 transitions. [2023-09-01 05:27:41,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 105.93333333333334) internal successors, (1589), 15 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 257.0) internal successors, (4112), 16 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,288 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 257.0) internal successors, (4112), 16 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,289 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 3246 flow. Second operand 15 states and 1589 transitions. [2023-09-01 05:27:41,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 3742 flow [2023-09-01 05:27:41,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 182 transitions, 3703 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:41,308 INFO L231 Difference]: Finished difference. Result has 181 places, 162 transitions, 3351 flow [2023-09-01 05:27:41,309 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3198, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3351, PETRI_PLACES=181, PETRI_TRANSITIONS=162} [2023-09-01 05:27:41,309 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 152 predicate places. [2023-09-01 05:27:41,309 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 162 transitions, 3351 flow [2023-09-01 05:27:41,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:41,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:41,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-09-01 05:27:41,310 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:41,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash 369223332, now seen corresponding path program 5 times [2023-09-01 05:27:41,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:41,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673659951] [2023-09-01 05:27:41,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:41,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:41,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:41,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673659951] [2023-09-01 05:27:41,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673659951] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:41,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:41,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:41,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372280930] [2023-09-01 05:27:41,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:41,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:41,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:41,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:41,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:42,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:27:42,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 162 transitions, 3351 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:42,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:42,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:27:42,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:42,477 INFO L130 PetriNetUnfolder]: 89/374 cut-off events. [2023-09-01 05:27:42,477 INFO L131 PetriNetUnfolder]: For 7949/7949 co-relation queries the response was YES. [2023-09-01 05:27:42,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3356 conditions, 374 events. 89/374 cut-off events. For 7949/7949 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2619 event pairs, 12 based on Foata normal form. 6/380 useless extension candidates. Maximal degree in co-relation 3250. Up to 108 conditions per place. [2023-09-01 05:27:42,480 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 118 selfloop transitions, 59 changer transitions 0/177 dead transitions. [2023-09-01 05:27:42,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 177 transitions, 3810 flow [2023-09-01 05:27:42,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:42,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1265 transitions. [2023-09-01 05:27:42,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4474708171206226 [2023-09-01 05:27:42,482 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1265 transitions. [2023-09-01 05:27:42,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1265 transitions. [2023-09-01 05:27:42,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:42,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1265 transitions. [2023-09-01 05:27:42,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:42,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:42,486 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:42,486 INFO L175 Difference]: Start difference. First operand has 181 places, 162 transitions, 3351 flow. Second operand 11 states and 1265 transitions. [2023-09-01 05:27:42,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 177 transitions, 3810 flow [2023-09-01 05:27:42,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 177 transitions, 3504 flow, removed 5 selfloop flow, removed 14 redundant places. [2023-09-01 05:27:42,512 INFO L231 Difference]: Finished difference. Result has 175 places, 161 transitions, 3164 flow [2023-09-01 05:27:42,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3031, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3164, PETRI_PLACES=175, PETRI_TRANSITIONS=161} [2023-09-01 05:27:42,513 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 146 predicate places. [2023-09-01 05:27:42,513 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 161 transitions, 3164 flow [2023-09-01 05:27:42,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:42,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:42,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:42,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-09-01 05:27:42,514 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:42,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:42,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1163899693, now seen corresponding path program 3 times [2023-09-01 05:27:42,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:42,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706538130] [2023-09-01 05:27:42,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:42,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:43,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:43,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:43,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706538130] [2023-09-01 05:27:43,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706538130] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:43,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:43,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:27:43,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227215846] [2023-09-01 05:27:43,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:43,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:27:43,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:43,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:27:43,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:27:43,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-09-01 05:27:43,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 161 transitions, 3164 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:43,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:43,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-09-01 05:27:43,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:44,353 INFO L130 PetriNetUnfolder]: 93/397 cut-off events. [2023-09-01 05:27:44,353 INFO L131 PetriNetUnfolder]: For 7573/7573 co-relation queries the response was YES. [2023-09-01 05:27:44,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3428 conditions, 397 events. 93/397 cut-off events. For 7573/7573 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2839 event pairs, 32 based on Foata normal form. 6/403 useless extension candidates. Maximal degree in co-relation 3302. Up to 271 conditions per place. [2023-09-01 05:27:44,357 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 100 selfloop transitions, 86 changer transitions 5/191 dead transitions. [2023-09-01 05:27:44,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 191 transitions, 3865 flow [2023-09-01 05:27:44,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-01 05:27:44,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-09-01 05:27:44,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1697 transitions. [2023-09-01 05:27:44,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41269455252918286 [2023-09-01 05:27:44,360 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1697 transitions. [2023-09-01 05:27:44,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1697 transitions. [2023-09-01 05:27:44,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:44,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1697 transitions. [2023-09-01 05:27:44,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 106.0625) internal successors, (1697), 16 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,365 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,365 INFO L175 Difference]: Start difference. First operand has 175 places, 161 transitions, 3164 flow. Second operand 16 states and 1697 transitions. [2023-09-01 05:27:44,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 191 transitions, 3865 flow [2023-09-01 05:27:44,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 191 transitions, 3824 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:44,393 INFO L231 Difference]: Finished difference. Result has 191 places, 172 transitions, 3580 flow [2023-09-01 05:27:44,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3109, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3580, PETRI_PLACES=191, PETRI_TRANSITIONS=172} [2023-09-01 05:27:44,394 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 162 predicate places. [2023-09-01 05:27:44,394 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 172 transitions, 3580 flow [2023-09-01 05:27:44,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,394 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:44,394 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:44,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-09-01 05:27:44,395 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:44,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:44,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1180813238, now seen corresponding path program 6 times [2023-09-01 05:27:44,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:44,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048915331] [2023-09-01 05:27:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:44,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:44,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:44,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:44,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048915331] [2023-09-01 05:27:44,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048915331] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:44,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:44,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:44,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125322297] [2023-09-01 05:27:44,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:44,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:44,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:44,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:44,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:45,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:27:45,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 172 transitions, 3580 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:45,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:27:45,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:45,543 INFO L130 PetriNetUnfolder]: 95/404 cut-off events. [2023-09-01 05:27:45,543 INFO L131 PetriNetUnfolder]: For 8777/8777 co-relation queries the response was YES. [2023-09-01 05:27:45,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3693 conditions, 404 events. 95/404 cut-off events. For 8777/8777 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2900 event pairs, 26 based on Foata normal form. 4/408 useless extension candidates. Maximal degree in co-relation 3557. Up to 185 conditions per place. [2023-09-01 05:27:45,547 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 91 selfloop transitions, 98 changer transitions 0/189 dead transitions. [2023-09-01 05:27:45,547 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 189 transitions, 4160 flow [2023-09-01 05:27:45,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 05:27:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 05:27:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2023-09-01 05:27:45,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444777012870398 [2023-09-01 05:27:45,549 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2023-09-01 05:27:45,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2023-09-01 05:27:45,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:45,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2023-09-01 05:27:45,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.23076923076923) internal successors, (1485), 13 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,554 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,554 INFO L175 Difference]: Start difference. First operand has 191 places, 172 transitions, 3580 flow. Second operand 13 states and 1485 transitions. [2023-09-01 05:27:45,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 189 transitions, 4160 flow [2023-09-01 05:27:45,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 189 transitions, 3950 flow, removed 36 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:45,578 INFO L231 Difference]: Finished difference. Result has 195 places, 179 transitions, 3837 flow [2023-09-01 05:27:45,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3837, PETRI_PLACES=195, PETRI_TRANSITIONS=179} [2023-09-01 05:27:45,579 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 166 predicate places. [2023-09-01 05:27:45,579 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 179 transitions, 3837 flow [2023-09-01 05:27:45,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:45,579 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:45,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-09-01 05:27:45,580 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:45,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:45,580 INFO L85 PathProgramCache]: Analyzing trace with hash 265799873, now seen corresponding path program 4 times [2023-09-01 05:27:45,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:45,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547308906] [2023-09-01 05:27:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:45,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:46,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:46,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547308906] [2023-09-01 05:27:46,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547308906] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:46,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:46,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:27:46,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877304707] [2023-09-01 05:27:46,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:46,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:27:46,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:46,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:27:46,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:27:46,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-09-01 05:27:46,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 179 transitions, 3837 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:46,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:46,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-09-01 05:27:46,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:46,882 INFO L130 PetriNetUnfolder]: 94/401 cut-off events. [2023-09-01 05:27:46,882 INFO L131 PetriNetUnfolder]: For 9442/9442 co-relation queries the response was YES. [2023-09-01 05:27:46,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3810 conditions, 401 events. 94/401 cut-off events. For 9442/9442 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2870 event pairs, 35 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 3661. Up to 275 conditions per place. [2023-09-01 05:27:46,885 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 156 selfloop transitions, 30 changer transitions 4/190 dead transitions. [2023-09-01 05:27:46,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 190 transitions, 4290 flow [2023-09-01 05:27:46,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:46,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:46,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1314 transitions. [2023-09-01 05:27:46,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4260700389105058 [2023-09-01 05:27:46,888 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1314 transitions. [2023-09-01 05:27:46,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1314 transitions. [2023-09-01 05:27:46,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:46,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1314 transitions. [2023-09-01 05:27:46,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 109.5) internal successors, (1314), 12 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:46,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:46,893 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:46,893 INFO L175 Difference]: Start difference. First operand has 195 places, 179 transitions, 3837 flow. Second operand 12 states and 1314 transitions. [2023-09-01 05:27:46,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 190 transitions, 4290 flow [2023-09-01 05:27:46,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 190 transitions, 4046 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:46,933 INFO L231 Difference]: Finished difference. Result has 200 places, 180 transitions, 3627 flow [2023-09-01 05:27:46,933 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3580, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3627, PETRI_PLACES=200, PETRI_TRANSITIONS=180} [2023-09-01 05:27:46,934 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 171 predicate places. [2023-09-01 05:27:46,934 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 180 transitions, 3627 flow [2023-09-01 05:27:46,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:46,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:46,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:46,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-09-01 05:27:46,935 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:46,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1441454191, now seen corresponding path program 5 times [2023-09-01 05:27:46,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:46,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606421944] [2023-09-01 05:27:46,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:46,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:47,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:47,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606421944] [2023-09-01 05:27:47,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606421944] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:47,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:47,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:27:47,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784918108] [2023-09-01 05:27:47,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:47,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:27:47,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:47,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:27:47,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:27:48,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-09-01 05:27:48,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 180 transitions, 3627 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:48,266 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:48,266 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-09-01 05:27:48,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:49,037 INFO L130 PetriNetUnfolder]: 98/419 cut-off events. [2023-09-01 05:27:49,038 INFO L131 PetriNetUnfolder]: For 8663/8663 co-relation queries the response was YES. [2023-09-01 05:27:49,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3857 conditions, 419 events. 98/419 cut-off events. For 8663/8663 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3062 event pairs, 36 based on Foata normal form. 4/423 useless extension candidates. Maximal degree in co-relation 3707. Up to 271 conditions per place. [2023-09-01 05:27:49,041 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 109 selfloop transitions, 99 changer transitions 0/208 dead transitions. [2023-09-01 05:27:49,041 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 208 transitions, 4361 flow [2023-09-01 05:27:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-09-01 05:27:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-09-01 05:27:49,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2270 transitions. [2023-09-01 05:27:49,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4206040392810821 [2023-09-01 05:27:49,044 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2270 transitions. [2023-09-01 05:27:49,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2270 transitions. [2023-09-01 05:27:49,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:49,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2270 transitions. [2023-09-01 05:27:49,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 108.0952380952381) internal successors, (2270), 21 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:49,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:49,051 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:49,051 INFO L175 Difference]: Start difference. First operand has 200 places, 180 transitions, 3627 flow. Second operand 21 states and 2270 transitions. [2023-09-01 05:27:49,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 208 transitions, 4361 flow [2023-09-01 05:27:49,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 208 transitions, 4328 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:49,089 INFO L231 Difference]: Finished difference. Result has 218 places, 194 transitions, 4099 flow [2023-09-01 05:27:49,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3594, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4099, PETRI_PLACES=218, PETRI_TRANSITIONS=194} [2023-09-01 05:27:49,090 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 189 predicate places. [2023-09-01 05:27:49,090 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 194 transitions, 4099 flow [2023-09-01 05:27:49,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:49,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:49,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:49,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-09-01 05:27:49,091 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:49,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:49,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1277865269, now seen corresponding path program 6 times [2023-09-01 05:27:49,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:49,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036000912] [2023-09-01 05:27:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:49,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:49,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:49,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036000912] [2023-09-01 05:27:49,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036000912] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:49,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:49,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:27:49,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731277883] [2023-09-01 05:27:49,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:49,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:27:49,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:49,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:27:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:27:50,167 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-09-01 05:27:50,168 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 194 transitions, 4099 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,168 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:50,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-09-01 05:27:50,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:50,874 INFO L130 PetriNetUnfolder]: 89/392 cut-off events. [2023-09-01 05:27:50,874 INFO L131 PetriNetUnfolder]: For 9492/9492 co-relation queries the response was YES. [2023-09-01 05:27:50,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3712 conditions, 392 events. 89/392 cut-off events. For 9492/9492 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2831 event pairs, 16 based on Foata normal form. 18/410 useless extension candidates. Maximal degree in co-relation 3538. Up to 137 conditions per place. [2023-09-01 05:27:50,878 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 71 selfloop transitions, 97 changer transitions 37/205 dead transitions. [2023-09-01 05:27:50,878 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 205 transitions, 4552 flow [2023-09-01 05:27:50,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-09-01 05:27:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-09-01 05:27:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1913 transitions. [2023-09-01 05:27:50,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4135322092520536 [2023-09-01 05:27:50,880 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1913 transitions. [2023-09-01 05:27:50,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1913 transitions. [2023-09-01 05:27:50,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:50,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1913 transitions. [2023-09-01 05:27:50,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 106.27777777777777) internal successors, (1913), 18 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,886 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,887 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,887 INFO L175 Difference]: Start difference. First operand has 218 places, 194 transitions, 4099 flow. Second operand 18 states and 1913 transitions. [2023-09-01 05:27:50,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 205 transitions, 4552 flow [2023-09-01 05:27:50,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 205 transitions, 4384 flow, removed 19 selfloop flow, removed 9 redundant places. [2023-09-01 05:27:50,928 INFO L231 Difference]: Finished difference. Result has 229 places, 157 transitions, 3311 flow [2023-09-01 05:27:50,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3786, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3311, PETRI_PLACES=229, PETRI_TRANSITIONS=157} [2023-09-01 05:27:50,928 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 200 predicate places. [2023-09-01 05:27:50,929 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 157 transitions, 3311 flow [2023-09-01 05:27:50,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:50,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:50,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-09-01 05:27:50,929 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:50,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:50,930 INFO L85 PathProgramCache]: Analyzing trace with hash -966788550, now seen corresponding path program 7 times [2023-09-01 05:27:50,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:50,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362364216] [2023-09-01 05:27:50,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:50,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:51,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:51,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:51,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362364216] [2023-09-01 05:27:51,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362364216] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:51,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:51,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:27:51,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310114433] [2023-09-01 05:27:51,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:51,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:27:51,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:51,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:27:51,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:27:51,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-09-01 05:27:51,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 157 transitions, 3311 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:51,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:51,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-09-01 05:27:51,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:52,335 INFO L130 PetriNetUnfolder]: 78/319 cut-off events. [2023-09-01 05:27:52,335 INFO L131 PetriNetUnfolder]: For 7465/7465 co-relation queries the response was YES. [2023-09-01 05:27:52,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3116 conditions, 319 events. 78/319 cut-off events. For 7465/7465 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2055 event pairs, 16 based on Foata normal form. 2/321 useless extension candidates. Maximal degree in co-relation 2973. Up to 111 conditions per place. [2023-09-01 05:27:52,337 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 90 selfloop transitions, 66 changer transitions 7/163 dead transitions. [2023-09-01 05:27:52,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 163 transitions, 3639 flow [2023-09-01 05:27:52,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:27:52,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:27:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1096 transitions. [2023-09-01 05:27:52,338 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4264591439688716 [2023-09-01 05:27:52,338 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1096 transitions. [2023-09-01 05:27:52,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1096 transitions. [2023-09-01 05:27:52,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:52,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1096 transitions. [2023-09-01 05:27:52,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 109.6) internal successors, (1096), 10 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:52,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:52,341 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:52,342 INFO L175 Difference]: Start difference. First operand has 229 places, 157 transitions, 3311 flow. Second operand 10 states and 1096 transitions. [2023-09-01 05:27:52,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 163 transitions, 3639 flow [2023-09-01 05:27:52,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 163 transitions, 3342 flow, removed 23 selfloop flow, removed 22 redundant places. [2023-09-01 05:27:52,371 INFO L231 Difference]: Finished difference. Result has 208 places, 151 transitions, 3024 flow [2023-09-01 05:27:52,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2983, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3024, PETRI_PLACES=208, PETRI_TRANSITIONS=151} [2023-09-01 05:27:52,372 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 179 predicate places. [2023-09-01 05:27:52,372 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 151 transitions, 3024 flow [2023-09-01 05:27:52,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:52,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:52,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:52,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-09-01 05:27:52,373 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:52,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:52,373 INFO L85 PathProgramCache]: Analyzing trace with hash 615564081, now seen corresponding path program 7 times [2023-09-01 05:27:52,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:52,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967722626] [2023-09-01 05:27:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:52,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:53,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:53,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:53,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967722626] [2023-09-01 05:27:53,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967722626] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:53,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:53,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:27:53,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985415732] [2023-09-01 05:27:53,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:53,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:27:53,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:53,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:27:53,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:27:53,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-09-01 05:27:53,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 151 transitions, 3024 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:53,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:53,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-09-01 05:27:53,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:54,418 INFO L130 PetriNetUnfolder]: 84/353 cut-off events. [2023-09-01 05:27:54,418 INFO L131 PetriNetUnfolder]: For 7556/7556 co-relation queries the response was YES. [2023-09-01 05:27:54,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3345 conditions, 353 events. 84/353 cut-off events. For 7556/7556 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2399 event pairs, 26 based on Foata normal form. 2/355 useless extension candidates. Maximal degree in co-relation 3173. Up to 209 conditions per place. [2023-09-01 05:27:54,421 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 106 selfloop transitions, 69 changer transitions 6/181 dead transitions. [2023-09-01 05:27:54,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 181 transitions, 3891 flow [2023-09-01 05:27:54,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-01 05:27:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-09-01 05:27:54,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1843 transitions. [2023-09-01 05:27:54,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4218356603341726 [2023-09-01 05:27:54,431 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1843 transitions. [2023-09-01 05:27:54,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1843 transitions. [2023-09-01 05:27:54,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:54,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1843 transitions. [2023-09-01 05:27:54,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 108.41176470588235) internal successors, (1843), 17 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:54,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:54,437 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:54,437 INFO L175 Difference]: Start difference. First operand has 208 places, 151 transitions, 3024 flow. Second operand 17 states and 1843 transitions. [2023-09-01 05:27:54,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 181 transitions, 3891 flow [2023-09-01 05:27:54,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 181 transitions, 3691 flow, removed 10 selfloop flow, removed 9 redundant places. [2023-09-01 05:27:54,465 INFO L231 Difference]: Finished difference. Result has 217 places, 159 transitions, 3196 flow [2023-09-01 05:27:54,465 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2860, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3196, PETRI_PLACES=217, PETRI_TRANSITIONS=159} [2023-09-01 05:27:54,466 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 188 predicate places. [2023-09-01 05:27:54,466 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 159 transitions, 3196 flow [2023-09-01 05:27:54,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:54,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:54,467 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:54,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-09-01 05:27:54,467 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:54,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:54,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1441514097, now seen corresponding path program 8 times [2023-09-01 05:27:54,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:54,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269744781] [2023-09-01 05:27:54,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:54,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:55,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:55,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:55,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269744781] [2023-09-01 05:27:55,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269744781] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:55,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:55,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:27:55,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971055662] [2023-09-01 05:27:55,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:55,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:27:55,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:55,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:27:55,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:27:55,805 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-09-01 05:27:55,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 159 transitions, 3196 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:55,806 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:55,806 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-09-01 05:27:55,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:56,264 INFO L130 PetriNetUnfolder]: 80/337 cut-off events. [2023-09-01 05:27:56,264 INFO L131 PetriNetUnfolder]: For 7016/7016 co-relation queries the response was YES. [2023-09-01 05:27:56,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3143 conditions, 337 events. 80/337 cut-off events. For 7016/7016 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2250 event pairs, 24 based on Foata normal form. 6/343 useless extension candidates. Maximal degree in co-relation 3021. Up to 240 conditions per place. [2023-09-01 05:27:56,267 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 94 selfloop transitions, 52 changer transitions 22/168 dead transitions. [2023-09-01 05:27:56,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 168 transitions, 3601 flow [2023-09-01 05:27:56,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 05:27:56,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 05:27:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1408 transitions. [2023-09-01 05:27:56,274 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42143070936845256 [2023-09-01 05:27:56,274 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1408 transitions. [2023-09-01 05:27:56,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1408 transitions. [2023-09-01 05:27:56,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:56,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1408 transitions. [2023-09-01 05:27:56,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 108.3076923076923) internal successors, (1408), 13 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:56,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:56,279 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:56,279 INFO L175 Difference]: Start difference. First operand has 217 places, 159 transitions, 3196 flow. Second operand 13 states and 1408 transitions. [2023-09-01 05:27:56,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 168 transitions, 3601 flow [2023-09-01 05:27:56,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 168 transitions, 3450 flow, removed 11 selfloop flow, removed 9 redundant places. [2023-09-01 05:27:56,307 INFO L231 Difference]: Finished difference. Result has 222 places, 145 transitions, 2818 flow [2023-09-01 05:27:56,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3049, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2818, PETRI_PLACES=222, PETRI_TRANSITIONS=145} [2023-09-01 05:27:56,308 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 193 predicate places. [2023-09-01 05:27:56,308 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 145 transitions, 2818 flow [2023-09-01 05:27:56,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:56,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:56,309 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:56,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-09-01 05:27:56,309 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:56,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:56,309 INFO L85 PathProgramCache]: Analyzing trace with hash -178846569, now seen corresponding path program 9 times [2023-09-01 05:27:56,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:56,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53734733] [2023-09-01 05:27:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:56,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:57,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:57,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53734733] [2023-09-01 05:27:57,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53734733] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:57,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:57,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:27:57,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102840483] [2023-09-01 05:27:57,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:57,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:27:57,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:57,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:27:57,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:27:57,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-09-01 05:27:57,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 145 transitions, 2818 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:57,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:57,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-09-01 05:27:57,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:58,298 INFO L130 PetriNetUnfolder]: 72/301 cut-off events. [2023-09-01 05:27:58,299 INFO L131 PetriNetUnfolder]: For 5651/5651 co-relation queries the response was YES. [2023-09-01 05:27:58,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 301 events. 72/301 cut-off events. For 5651/5651 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1926 event pairs, 22 based on Foata normal form. 4/305 useless extension candidates. Maximal degree in co-relation 2760. Up to 195 conditions per place. [2023-09-01 05:27:58,301 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 79 selfloop transitions, 66 changer transitions 5/150 dead transitions. [2023-09-01 05:27:58,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 150 transitions, 3130 flow [2023-09-01 05:27:58,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-09-01 05:27:58,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-09-01 05:27:58,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2260 transitions. [2023-09-01 05:27:58,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41875115805076896 [2023-09-01 05:27:58,303 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2260 transitions. [2023-09-01 05:27:58,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2260 transitions. [2023-09-01 05:27:58,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:58,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2260 transitions. [2023-09-01 05:27:58,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 107.61904761904762) internal successors, (2260), 21 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,310 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,310 INFO L175 Difference]: Start difference. First operand has 222 places, 145 transitions, 2818 flow. Second operand 21 states and 2260 transitions. [2023-09-01 05:27:58,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 150 transitions, 3130 flow [2023-09-01 05:27:58,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 150 transitions, 3013 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-09-01 05:27:58,334 INFO L231 Difference]: Finished difference. Result has 227 places, 140 transitions, 2726 flow [2023-09-01 05:27:58,334 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2701, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2726, PETRI_PLACES=227, PETRI_TRANSITIONS=140} [2023-09-01 05:27:58,334 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 198 predicate places. [2023-09-01 05:27:58,335 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 140 transitions, 2726 flow [2023-09-01 05:27:58,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:58,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:58,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-09-01 05:27:58,335 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:58,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:58,336 INFO L85 PathProgramCache]: Analyzing trace with hash 356383232, now seen corresponding path program 8 times [2023-09-01 05:27:58,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:58,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749960208] [2023-09-01 05:27:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:58,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:58,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:58,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:58,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749960208] [2023-09-01 05:27:58,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749960208] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:58,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:58,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:58,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270115681] [2023-09-01 05:27:58,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:58,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:58,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:58,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:58,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:59,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:27:59,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 140 transitions, 2726 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:59,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:59,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:27:59,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:59,502 INFO L130 PetriNetUnfolder]: 67/288 cut-off events. [2023-09-01 05:27:59,502 INFO L131 PetriNetUnfolder]: For 5238/5238 co-relation queries the response was YES. [2023-09-01 05:27:59,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2711 conditions, 288 events. 67/288 cut-off events. For 5238/5238 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1823 event pairs, 15 based on Foata normal form. 6/294 useless extension candidates. Maximal degree in co-relation 2548. Up to 120 conditions per place. [2023-09-01 05:27:59,504 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 104 selfloop transitions, 42 changer transitions 10/156 dead transitions. [2023-09-01 05:27:59,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 156 transitions, 3175 flow [2023-09-01 05:27:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:59,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1375 transitions. [2023-09-01 05:27:59,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4458495460440986 [2023-09-01 05:27:59,511 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1375 transitions. [2023-09-01 05:27:59,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1375 transitions. [2023-09-01 05:27:59,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:59,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1375 transitions. [2023-09-01 05:27:59,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.58333333333333) internal successors, (1375), 12 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:59,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:59,515 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:59,515 INFO L175 Difference]: Start difference. First operand has 227 places, 140 transitions, 2726 flow. Second operand 12 states and 1375 transitions. [2023-09-01 05:27:59,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 156 transitions, 3175 flow [2023-09-01 05:27:59,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 156 transitions, 3009 flow, removed 7 selfloop flow, removed 20 redundant places. [2023-09-01 05:27:59,537 INFO L231 Difference]: Finished difference. Result has 220 places, 136 transitions, 2664 flow [2023-09-01 05:27:59,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2535, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2664, PETRI_PLACES=220, PETRI_TRANSITIONS=136} [2023-09-01 05:27:59,538 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 191 predicate places. [2023-09-01 05:27:59,538 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 136 transitions, 2664 flow [2023-09-01 05:27:59,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:59,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:59,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:59,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-09-01 05:27:59,539 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:59,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:59,540 INFO L85 PathProgramCache]: Analyzing trace with hash -184659479, now seen corresponding path program 10 times [2023-09-01 05:27:59,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:59,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912084133] [2023-09-01 05:27:59,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:59,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:00,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:00,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912084133] [2023-09-01 05:28:00,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912084133] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:00,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:00,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:28:00,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551476656] [2023-09-01 05:28:00,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:00,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:28:00,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:00,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:28:00,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:28:01,106 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-09-01 05:28:01,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 136 transitions, 2664 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:01,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:01,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-09-01 05:28:01,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:01,719 INFO L130 PetriNetUnfolder]: 60/260 cut-off events. [2023-09-01 05:28:01,720 INFO L131 PetriNetUnfolder]: For 5094/5094 co-relation queries the response was YES. [2023-09-01 05:28:01,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 260 events. 60/260 cut-off events. For 5094/5094 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1599 event pairs, 17 based on Foata normal form. 6/266 useless extension candidates. Maximal degree in co-relation 2403. Up to 77 conditions per place. [2023-09-01 05:28:01,722 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 77 selfloop transitions, 49 changer transitions 22/148 dead transitions. [2023-09-01 05:28:01,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 148 transitions, 2957 flow [2023-09-01 05:28:01,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-01 05:28:01,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-09-01 05:28:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1842 transitions. [2023-09-01 05:28:01,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42160677500572213 [2023-09-01 05:28:01,724 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1842 transitions. [2023-09-01 05:28:01,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1842 transitions. [2023-09-01 05:28:01,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:01,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1842 transitions. [2023-09-01 05:28:01,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 108.3529411764706) internal successors, (1842), 17 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:01,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:01,728 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:01,728 INFO L175 Difference]: Start difference. First operand has 220 places, 136 transitions, 2664 flow. Second operand 17 states and 1842 transitions. [2023-09-01 05:28:01,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 148 transitions, 2957 flow [2023-09-01 05:28:01,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 148 transitions, 2833 flow, removed 17 selfloop flow, removed 11 redundant places. [2023-09-01 05:28:01,743 INFO L231 Difference]: Finished difference. Result has 216 places, 115 transitions, 2131 flow [2023-09-01 05:28:01,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2459, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2131, PETRI_PLACES=216, PETRI_TRANSITIONS=115} [2023-09-01 05:28:01,744 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 187 predicate places. [2023-09-01 05:28:01,744 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 115 transitions, 2131 flow [2023-09-01 05:28:01,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:01,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:01,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:01,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-09-01 05:28:01,744 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:01,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:01,745 INFO L85 PathProgramCache]: Analyzing trace with hash -960417119, now seen corresponding path program 11 times [2023-09-01 05:28:01,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:01,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417025622] [2023-09-01 05:28:01,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:01,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:02,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:02,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:02,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417025622] [2023-09-01 05:28:02,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417025622] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:02,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:02,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:28:02,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715632187] [2023-09-01 05:28:02,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:02,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:28:02,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:02,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:28:02,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:28:02,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-09-01 05:28:02,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 115 transitions, 2131 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:02,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:02,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-09-01 05:28:02,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:03,798 INFO L130 PetriNetUnfolder]: 49/218 cut-off events. [2023-09-01 05:28:03,798 INFO L131 PetriNetUnfolder]: For 3598/3598 co-relation queries the response was YES. [2023-09-01 05:28:03,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2039 conditions, 218 events. 49/218 cut-off events. For 3598/3598 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1272 event pairs, 13 based on Foata normal form. 6/224 useless extension candidates. Maximal degree in co-relation 1968. Up to 53 conditions per place. [2023-09-01 05:28:03,800 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 57 selfloop transitions, 56 changer transitions 20/133 dead transitions. [2023-09-01 05:28:03,800 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 133 transitions, 2466 flow [2023-09-01 05:28:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-09-01 05:28:03,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-09-01 05:28:03,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3017 transitions. [2023-09-01 05:28:03,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41926070038910507 [2023-09-01 05:28:03,804 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3017 transitions. [2023-09-01 05:28:03,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3017 transitions. [2023-09-01 05:28:03,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:03,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3017 transitions. [2023-09-01 05:28:03,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 107.75) internal successors, (3017), 28 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:03,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 257.0) internal successors, (7453), 29 states have internal predecessors, (7453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:03,813 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 257.0) internal successors, (7453), 29 states have internal predecessors, (7453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:03,813 INFO L175 Difference]: Start difference. First operand has 216 places, 115 transitions, 2131 flow. Second operand 28 states and 3017 transitions. [2023-09-01 05:28:03,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 133 transitions, 2466 flow [2023-09-01 05:28:03,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 133 transitions, 2235 flow, removed 19 selfloop flow, removed 22 redundant places. [2023-09-01 05:28:03,829 INFO L231 Difference]: Finished difference. Result has 212 places, 102 transitions, 1753 flow [2023-09-01 05:28:03,830 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1829, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1753, PETRI_PLACES=212, PETRI_TRANSITIONS=102} [2023-09-01 05:28:03,830 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 183 predicate places. [2023-09-01 05:28:03,830 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 102 transitions, 1753 flow [2023-09-01 05:28:03,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:03,831 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:03,831 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:03,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-09-01 05:28:03,831 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:03,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:03,832 INFO L85 PathProgramCache]: Analyzing trace with hash 749006897, now seen corresponding path program 12 times [2023-09-01 05:28:03,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:03,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059320043] [2023-09-01 05:28:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:03,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:04,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:04,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:04,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059320043] [2023-09-01 05:28:04,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059320043] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:04,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:04,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:28:04,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800299197] [2023-09-01 05:28:04,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:04,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:28:04,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:04,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:28:04,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:28:05,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-09-01 05:28:05,017 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 102 transitions, 1753 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:05,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:05,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-09-01 05:28:05,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:05,753 INFO L130 PetriNetUnfolder]: 40/184 cut-off events. [2023-09-01 05:28:05,754 INFO L131 PetriNetUnfolder]: For 2191/2191 co-relation queries the response was YES. [2023-09-01 05:28:05,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1688 conditions, 184 events. 40/184 cut-off events. For 2191/2191 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1010 event pairs, 9 based on Foata normal form. 4/188 useless extension candidates. Maximal degree in co-relation 1626. Up to 50 conditions per place. [2023-09-01 05:28:05,755 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 43 selfloop transitions, 49 changer transitions 19/111 dead transitions. [2023-09-01 05:28:05,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 111 transitions, 1981 flow [2023-09-01 05:28:05,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-09-01 05:28:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-09-01 05:28:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2539 transitions. [2023-09-01 05:28:05,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41164072632944226 [2023-09-01 05:28:05,757 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2539 transitions. [2023-09-01 05:28:05,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2539 transitions. [2023-09-01 05:28:05,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:05,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2539 transitions. [2023-09-01 05:28:05,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 105.79166666666667) internal successors, (2539), 24 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) [2023-09-01 05:28:05,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 257.0) internal successors, (6425), 25 states have internal predecessors, (6425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:05,769 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 257.0) internal successors, (6425), 25 states have internal predecessors, (6425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:05,769 INFO L175 Difference]: Start difference. First operand has 212 places, 102 transitions, 1753 flow. Second operand 24 states and 2539 transitions. [2023-09-01 05:28:05,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 111 transitions, 1981 flow [2023-09-01 05:28:05,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 111 transitions, 1751 flow, removed 17 selfloop flow, removed 27 redundant places. [2023-09-01 05:28:05,778 INFO L231 Difference]: Finished difference. Result has 195 places, 81 transitions, 1294 flow [2023-09-01 05:28:05,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1483, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1294, PETRI_PLACES=195, PETRI_TRANSITIONS=81} [2023-09-01 05:28:05,778 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 166 predicate places. [2023-09-01 05:28:05,778 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 81 transitions, 1294 flow [2023-09-01 05:28:05,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:05,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:05,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:05,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-09-01 05:28:05,779 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:05,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:05,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1930078246, now seen corresponding path program 9 times [2023-09-01 05:28:05,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:05,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281940772] [2023-09-01 05:28:05,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:05,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:06,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:06,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:06,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281940772] [2023-09-01 05:28:06,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281940772] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:06,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:06,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:28:06,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083545928] [2023-09-01 05:28:06,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:06,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:28:06,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:06,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:28:06,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:28:06,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-09-01 05:28:06,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 81 transitions, 1294 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:06,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:06,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-09-01 05:28:06,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:07,101 INFO L130 PetriNetUnfolder]: 32/149 cut-off events. [2023-09-01 05:28:07,101 INFO L131 PetriNetUnfolder]: For 1437/1437 co-relation queries the response was YES. [2023-09-01 05:28:07,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1336 conditions, 149 events. 32/149 cut-off events. For 1437/1437 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 751 event pairs, 10 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 1304. Up to 103 conditions per place. [2023-09-01 05:28:07,102 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 51 selfloop transitions, 27 changer transitions 6/84 dead transitions. [2023-09-01 05:28:07,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 84 transitions, 1458 flow [2023-09-01 05:28:07,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:28:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:28:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1169 transitions. [2023-09-01 05:28:07,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41351255748142907 [2023-09-01 05:28:07,103 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1169 transitions. [2023-09-01 05:28:07,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1169 transitions. [2023-09-01 05:28:07,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:07,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1169 transitions. [2023-09-01 05:28:07,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 106.27272727272727) internal successors, (1169), 11 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:07,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:07,107 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:07,107 INFO L175 Difference]: Start difference. First operand has 195 places, 81 transitions, 1294 flow. Second operand 11 states and 1169 transitions. [2023-09-01 05:28:07,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 84 transitions, 1458 flow [2023-09-01 05:28:07,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 84 transitions, 1219 flow, removed 6 selfloop flow, removed 44 redundant places. [2023-09-01 05:28:07,114 INFO L231 Difference]: Finished difference. Result has 153 places, 77 transitions, 1043 flow [2023-09-01 05:28:07,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1043, PETRI_PLACES=153, PETRI_TRANSITIONS=77} [2023-09-01 05:28:07,115 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 124 predicate places. [2023-09-01 05:28:07,115 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 77 transitions, 1043 flow [2023-09-01 05:28:07,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:07,116 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:07,116 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:07,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-09-01 05:28:07,116 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:07,116 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:07,116 INFO L85 PathProgramCache]: Analyzing trace with hash 383374533, now seen corresponding path program 13 times [2023-09-01 05:28:07,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:07,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858670787] [2023-09-01 05:28:07,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:07,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:07,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:07,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858670787] [2023-09-01 05:28:07,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858670787] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:07,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:07,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:28:07,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402632985] [2023-09-01 05:28:07,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:07,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:28:07,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:07,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:28:07,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:28:08,349 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-09-01 05:28:08,350 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 77 transitions, 1043 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:08,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:08,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-09-01 05:28:08,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:09,118 INFO L130 PetriNetUnfolder]: 31/140 cut-off events. [2023-09-01 05:28:09,118 INFO L131 PetriNetUnfolder]: For 929/929 co-relation queries the response was YES. [2023-09-01 05:28:09,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 140 events. 31/140 cut-off events. For 929/929 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 676 event pairs, 8 based on Foata normal form. 2/142 useless extension candidates. Maximal degree in co-relation 1132. Up to 46 conditions per place. [2023-09-01 05:28:09,119 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 33 selfloop transitions, 51 changer transitions 0/84 dead transitions. [2023-09-01 05:28:09,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 84 transitions, 1228 flow [2023-09-01 05:28:09,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-09-01 05:28:09,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-09-01 05:28:09,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2366 transitions. [2023-09-01 05:28:09,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41846480367881145 [2023-09-01 05:28:09,126 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2366 transitions. [2023-09-01 05:28:09,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2366 transitions. [2023-09-01 05:28:09,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:09,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2366 transitions. [2023-09-01 05:28:09,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 107.54545454545455) internal successors, (2366), 22 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:09,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 257.0) internal successors, (5911), 23 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:09,132 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 257.0) internal successors, (5911), 23 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:09,132 INFO L175 Difference]: Start difference. First operand has 153 places, 77 transitions, 1043 flow. Second operand 22 states and 2366 transitions. [2023-09-01 05:28:09,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 84 transitions, 1228 flow [2023-09-01 05:28:09,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 84 transitions, 1155 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-09-01 05:28:09,136 INFO L231 Difference]: Finished difference. Result has 160 places, 76 transitions, 1052 flow [2023-09-01 05:28:09,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1052, PETRI_PLACES=160, PETRI_TRANSITIONS=76} [2023-09-01 05:28:09,136 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 131 predicate places. [2023-09-01 05:28:09,137 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 76 transitions, 1052 flow [2023-09-01 05:28:09,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:09,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:09,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:09,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-09-01 05:28:09,137 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:09,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:09,137 INFO L85 PathProgramCache]: Analyzing trace with hash 380808662, now seen corresponding path program 10 times [2023-09-01 05:28:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:09,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301237799] [2023-09-01 05:28:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:09,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:09,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:09,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:09,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301237799] [2023-09-01 05:28:09,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301237799] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:09,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:09,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-09-01 05:28:09,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129433998] [2023-09-01 05:28:09,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:09,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-09-01 05:28:09,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:09,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-09-01 05:28:09,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-09-01 05:28:10,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-09-01 05:28:10,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 76 transitions, 1052 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:10,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:10,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-09-01 05:28:10,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:11,099 INFO L130 PetriNetUnfolder]: 26/125 cut-off events. [2023-09-01 05:28:11,099 INFO L131 PetriNetUnfolder]: For 891/891 co-relation queries the response was YES. [2023-09-01 05:28:11,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 125 events. 26/125 cut-off events. For 891/891 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 590 event pairs, 3 based on Foata normal form. 10/135 useless extension candidates. Maximal degree in co-relation 947. Up to 33 conditions per place. [2023-09-01 05:28:11,100 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 21 selfloop transitions, 22 changer transitions 39/82 dead transitions. [2023-09-01 05:28:11,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 82 transitions, 1122 flow [2023-09-01 05:28:11,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-09-01 05:28:11,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-09-01 05:28:11,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1961 transitions. [2023-09-01 05:28:11,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42390834414180717 [2023-09-01 05:28:11,102 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1961 transitions. [2023-09-01 05:28:11,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1961 transitions. [2023-09-01 05:28:11,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:11,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1961 transitions. [2023-09-01 05:28:11,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 108.94444444444444) internal successors, (1961), 18 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:11,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:11,108 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:11,108 INFO L175 Difference]: Start difference. First operand has 160 places, 76 transitions, 1052 flow. Second operand 18 states and 1961 transitions. [2023-09-01 05:28:11,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 82 transitions, 1122 flow [2023-09-01 05:28:11,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 82 transitions, 988 flow, removed 3 selfloop flow, removed 22 redundant places. [2023-09-01 05:28:11,112 INFO L231 Difference]: Finished difference. Result has 149 places, 39 transitions, 440 flow [2023-09-01 05:28:11,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=440, PETRI_PLACES=149, PETRI_TRANSITIONS=39} [2023-09-01 05:28:11,113 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 120 predicate places. [2023-09-01 05:28:11,113 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 39 transitions, 440 flow [2023-09-01 05:28:11,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:11,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:11,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:11,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-09-01 05:28:11,113 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:11,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:11,114 INFO L85 PathProgramCache]: Analyzing trace with hash 374437233, now seen corresponding path program 14 times [2023-09-01 05:28:11,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:11,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575245379] [2023-09-01 05:28:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:11,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:11,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:11,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575245379] [2023-09-01 05:28:11,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575245379] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:11,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:11,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:28:11,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126269576] [2023-09-01 05:28:11,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:11,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:28:11,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:11,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:28:11,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:28:12,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-09-01 05:28:12,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 39 transitions, 440 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:12,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:12,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-09-01 05:28:12,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:12,435 INFO L130 PetriNetUnfolder]: 8/56 cut-off events. [2023-09-01 05:28:12,435 INFO L131 PetriNetUnfolder]: For 266/266 co-relation queries the response was YES. [2023-09-01 05:28:12,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 56 events. 8/56 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 155 event pairs, 3 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 424. Up to 17 conditions per place. [2023-09-01 05:28:12,435 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 16 selfloop transitions, 17 changer transitions 8/41 dead transitions. [2023-09-01 05:28:12,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 41 transitions, 507 flow [2023-09-01 05:28:12,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-09-01 05:28:12,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-09-01 05:28:12,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1715 transitions. [2023-09-01 05:28:12,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4170719844357977 [2023-09-01 05:28:12,437 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1715 transitions. [2023-09-01 05:28:12,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1715 transitions. [2023-09-01 05:28:12,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:12,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1715 transitions. [2023-09-01 05:28:12,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 107.1875) internal successors, (1715), 16 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:12,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:12,440 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:12,440 INFO L175 Difference]: Start difference. First operand has 149 places, 39 transitions, 440 flow. Second operand 16 states and 1715 transitions. [2023-09-01 05:28:12,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 41 transitions, 507 flow [2023-09-01 05:28:12,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 41 transitions, 396 flow, removed 1 selfloop flow, removed 29 redundant places. [2023-09-01 05:28:12,442 INFO L231 Difference]: Finished difference. Result has 107 places, 30 transitions, 312 flow [2023-09-01 05:28:12,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=312, PETRI_PLACES=107, PETRI_TRANSITIONS=30} [2023-09-01 05:28:12,442 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 78 predicate places. [2023-09-01 05:28:12,443 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 30 transitions, 312 flow [2023-09-01 05:28:12,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:12,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:12,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:12,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-09-01 05:28:12,443 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:12,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:12,443 INFO L85 PathProgramCache]: Analyzing trace with hash -187843776, now seen corresponding path program 11 times [2023-09-01 05:28:12,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:12,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246664478] [2023-09-01 05:28:12,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:12,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:12,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:12,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:12,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246664478] [2023-09-01 05:28:12,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246664478] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:12,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:12,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:28:12,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073399508] [2023-09-01 05:28:12,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:12,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:28:12,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:12,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:28:12,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:28:13,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 257 [2023-09-01 05:28:13,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 30 transitions, 312 flow. Second operand has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:13,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:13,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 257 [2023-09-01 05:28:13,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:13,499 INFO L130 PetriNetUnfolder]: 7/50 cut-off events. [2023-09-01 05:28:13,500 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-09-01 05:28:13,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 50 events. 7/50 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 141 event pairs, 3 based on Foata normal form. 2/52 useless extension candidates. Maximal degree in co-relation 368. Up to 16 conditions per place. [2023-09-01 05:28:13,500 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 16 selfloop transitions, 13 changer transitions 6/35 dead transitions. [2023-09-01 05:28:13,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 35 transitions, 408 flow [2023-09-01 05:28:13,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-09-01 05:28:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-09-01 05:28:13,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1092 transitions. [2023-09-01 05:28:13,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42490272373540855 [2023-09-01 05:28:13,501 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1092 transitions. [2023-09-01 05:28:13,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1092 transitions. [2023-09-01 05:28:13,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:13,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1092 transitions. [2023-09-01 05:28:13,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 109.2) internal successors, (1092), 10 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:13,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:13,504 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:13,504 INFO L175 Difference]: Start difference. First operand has 107 places, 30 transitions, 312 flow. Second operand 10 states and 1092 transitions. [2023-09-01 05:28:13,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 35 transitions, 408 flow [2023-09-01 05:28:13,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 35 transitions, 355 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-09-01 05:28:13,505 INFO L231 Difference]: Finished difference. Result has 92 places, 28 transitions, 283 flow [2023-09-01 05:28:13,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=283, PETRI_PLACES=92, PETRI_TRANSITIONS=28} [2023-09-01 05:28:13,506 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 63 predicate places. [2023-09-01 05:28:13,506 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 28 transitions, 283 flow [2023-09-01 05:28:13,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:13,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:13,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:13,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-09-01 05:28:13,506 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:13,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:13,507 INFO L85 PathProgramCache]: Analyzing trace with hash 310857564, now seen corresponding path program 12 times [2023-09-01 05:28:13,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:13,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087541844] [2023-09-01 05:28:13,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:13,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:13,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:13,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087541844] [2023-09-01 05:28:13,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087541844] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:13,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:13,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:28:13,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267506404] [2023-09-01 05:28:13,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:13,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:28:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:13,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:28:13,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:28:14,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:28:14,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 28 transitions, 283 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:14,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:14,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:28:14,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:14,430 INFO L130 PetriNetUnfolder]: 6/53 cut-off events. [2023-09-01 05:28:14,430 INFO L131 PetriNetUnfolder]: For 185/185 co-relation queries the response was YES. [2023-09-01 05:28:14,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 53 events. 6/53 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 172 event pairs, 4 based on Foata normal form. 4/57 useless extension candidates. Maximal degree in co-relation 388. Up to 22 conditions per place. [2023-09-01 05:28:14,431 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 16 selfloop transitions, 15 changer transitions 3/34 dead transitions. [2023-09-01 05:28:14,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 34 transitions, 398 flow [2023-09-01 05:28:14,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:28:14,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:28:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1021 transitions. [2023-09-01 05:28:14,432 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4414180717682663 [2023-09-01 05:28:14,432 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1021 transitions. [2023-09-01 05:28:14,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1021 transitions. [2023-09-01 05:28:14,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:14,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1021 transitions. [2023-09-01 05:28:14,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.44444444444444) internal successors, (1021), 9 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:14,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:14,441 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:14,441 INFO L175 Difference]: Start difference. First operand has 92 places, 28 transitions, 283 flow. Second operand 9 states and 1021 transitions. [2023-09-01 05:28:14,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 34 transitions, 398 flow [2023-09-01 05:28:14,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 34 transitions, 364 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-09-01 05:28:14,443 INFO L231 Difference]: Finished difference. Result has 92 places, 28 transitions, 323 flow [2023-09-01 05:28:14,443 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=323, PETRI_PLACES=92, PETRI_TRANSITIONS=28} [2023-09-01 05:28:14,443 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 63 predicate places. [2023-09-01 05:28:14,444 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 28 transitions, 323 flow [2023-09-01 05:28:14,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:14,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:14,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:14,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-09-01 05:28:14,444 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:14,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:14,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1181674323, now seen corresponding path program 15 times [2023-09-01 05:28:14,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:14,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982683117] [2023-09-01 05:28:14,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:14,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:14,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:14,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982683117] [2023-09-01 05:28:14,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982683117] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:14,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:14,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-09-01 05:28:14,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615609584] [2023-09-01 05:28:14,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:14,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-09-01 05:28:14,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:14,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-09-01 05:28:14,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-09-01 05:28:15,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-09-01 05:28:15,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 28 transitions, 323 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:15,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:15,626 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-09-01 05:28:15,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:15,957 INFO L130 PetriNetUnfolder]: 3/39 cut-off events. [2023-09-01 05:28:15,958 INFO L131 PetriNetUnfolder]: For 194/194 co-relation queries the response was YES. [2023-09-01 05:28:15,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 39 events. 3/39 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 94 event pairs, 2 based on Foata normal form. 6/45 useless extension candidates. Maximal degree in co-relation 276. Up to 18 conditions per place. [2023-09-01 05:28:15,958 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 12 selfloop transitions, 15 changer transitions 3/30 dead transitions. [2023-09-01 05:28:15,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 30 transitions, 353 flow [2023-09-01 05:28:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 05:28:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 05:28:15,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1390 transitions. [2023-09-01 05:28:15,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4160431008680036 [2023-09-01 05:28:15,962 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1390 transitions. [2023-09-01 05:28:15,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1390 transitions. [2023-09-01 05:28:15,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:15,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1390 transitions. [2023-09-01 05:28:15,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.92307692307692) internal successors, (1390), 13 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:15,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:15,967 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:15,967 INFO L175 Difference]: Start difference. First operand has 92 places, 28 transitions, 323 flow. Second operand 13 states and 1390 transitions. [2023-09-01 05:28:15,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 30 transitions, 353 flow [2023-09-01 05:28:15,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 30 transitions, 301 flow, removed 3 selfloop flow, removed 11 redundant places. [2023-09-01 05:28:15,969 INFO L231 Difference]: Finished difference. Result has 80 places, 24 transitions, 234 flow [2023-09-01 05:28:15,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=234, PETRI_PLACES=80, PETRI_TRANSITIONS=24} [2023-09-01 05:28:15,969 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 51 predicate places. [2023-09-01 05:28:15,969 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 24 transitions, 234 flow [2023-09-01 05:28:15,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:15,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:15,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:15,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-09-01 05:28:15,970 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:15,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:15,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1181674322, now seen corresponding path program 13 times [2023-09-01 05:28:15,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:15,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708565265] [2023-09-01 05:28:15,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:15,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:16,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:16,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:16,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708565265] [2023-09-01 05:28:16,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708565265] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:16,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:16,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:28:16,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103289279] [2023-09-01 05:28:16,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:16,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:28:16,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:16,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:28:16,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:28:16,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-09-01 05:28:16,641 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 24 transitions, 234 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:16,641 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:16,641 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-09-01 05:28:16,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:16,811 INFO L130 PetriNetUnfolder]: 0/25 cut-off events. [2023-09-01 05:28:16,811 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2023-09-01 05:28:16,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 25 events. 0/25 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 6/31 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-09-01 05:28:16,812 INFO L137 encePairwiseOnDemand]: 249/257 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-09-01 05:28:16,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 21 transitions, 206 flow [2023-09-01 05:28:16,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:28:16,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:28:16,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1014 transitions. [2023-09-01 05:28:16,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4383916990920882 [2023-09-01 05:28:16,813 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1014 transitions. [2023-09-01 05:28:16,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1014 transitions. [2023-09-01 05:28:16,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:16,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1014 transitions. [2023-09-01 05:28:16,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.66666666666667) internal successors, (1014), 9 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:16,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:16,815 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:16,815 INFO L175 Difference]: Start difference. First operand has 80 places, 24 transitions, 234 flow. Second operand 9 states and 1014 transitions. [2023-09-01 05:28:16,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 21 transitions, 206 flow [2023-09-01 05:28:16,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 21 transitions, 142 flow, removed 3 selfloop flow, removed 16 redundant places. [2023-09-01 05:28:16,816 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-09-01 05:28:16,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-09-01 05:28:16,816 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 18 predicate places. [2023-09-01 05:28:16,816 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-09-01 05:28:16,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:16,818 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-09-01 05:28:16,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-09-01 05:28:16,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-09-01 05:28:16,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-09-01 05:28:16,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-09-01 05:28:16,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-09-01 05:28:16,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-09-01 05:28:16,819 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-09-01 05:28:16,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-09-01 05:28:16,819 INFO L445 BasicCegarLoop]: Path program histogram: [15, 13, 6, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2023-09-01 05:28:16,824 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:28:16,824 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:28:16,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:28:16 BasicIcfg [2023-09-01 05:28:16,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:28:16,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:28:16,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:28:16,828 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:28:16,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:26:59" (3/4) ... [2023-09-01 05:28:16,830 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:28:16,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-09-01 05:28:16,840 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-09-01 05:28:16,840 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 05:28:16,841 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:28:16,841 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:28:16,869 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:28:16,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:28:16,870 INFO L158 Benchmark]: Toolchain (without parser) took 79176.25ms. Allocated memory was 92.3MB in the beginning and 490.7MB in the end (delta: 398.5MB). Free memory was 68.2MB in the beginning and 336.1MB in the end (delta: -267.9MB). Peak memory consumption was 129.6MB. Max. memory is 16.1GB. [2023-09-01 05:28:16,870 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:28:16,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 823.43ms. Allocated memory is still 92.3MB. Free memory was 68.2MB in the beginning and 37.1MB in the end (delta: 31.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-09-01 05:28:16,870 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.91ms. Allocated memory is still 92.3MB. Free memory was 37.1MB in the beginning and 65.6MB in the end (delta: -28.6MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-09-01 05:28:16,870 INFO L158 Benchmark]: Boogie Preprocessor took 41.09ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 62.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:28:16,871 INFO L158 Benchmark]: RCFGBuilder took 702.17ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 38.9MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-09-01 05:28:16,871 INFO L158 Benchmark]: TraceAbstraction took 77489.56ms. Allocated memory was 92.3MB in the beginning and 490.7MB in the end (delta: 398.5MB). Free memory was 38.4MB in the beginning and 339.2MB in the end (delta: -300.8MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2023-09-01 05:28:16,871 INFO L158 Benchmark]: Witness Printer took 42.19ms. Allocated memory is still 490.7MB. Free memory was 339.2MB in the beginning and 336.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:28:16,872 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 62.9MB. Free memory was 40.6MB in the beginning and 40.5MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 823.43ms. Allocated memory is still 92.3MB. Free memory was 68.2MB in the beginning and 37.1MB in the end (delta: 31.1MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.91ms. Allocated memory is still 92.3MB. Free memory was 37.1MB in the beginning and 65.6MB in the end (delta: -28.6MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.09ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 62.6MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 702.17ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 38.9MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 77489.56ms. Allocated memory was 92.3MB in the beginning and 490.7MB in the end (delta: 398.5MB). Free memory was 38.4MB in the beginning and 339.2MB in the end (delta: -300.8MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. * Witness Printer took 42.19ms. Allocated memory is still 490.7MB. Free memory was 339.2MB in the beginning and 336.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 122 PlacesBefore, 29 PlacesAfterwards, 117 TransitionsBefore, 23 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 5449 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2466, independent: 2270, independent conditional: 0, independent unconditional: 2270, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1470, independent: 1416, independent conditional: 0, independent unconditional: 1416, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2466, independent: 854, independent conditional: 0, independent unconditional: 854, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 1470, unknown conditional: 0, unknown unconditional: 1470] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 156 locations, 8 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: 77.3s, OverallIterations: 53, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 43.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12677 SdHoareTripleChecker+Valid, 27.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10243 mSDsluCounter, 10003 SdHoareTripleChecker+Invalid, 23.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9459 mSDsCounter, 1733 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48686 IncrementalHoareTripleChecker+Invalid, 50419 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1733 mSolverCounterUnsat, 544 mSDtfsCounter, 48686 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 850 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 845 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1949 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4099occurred in iteration=36, InterpolantAutomatonStates: 677, 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, 0.7s SatisfiabilityAnalysisTime, 26.2s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 8519 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 53 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:28:16,893 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