./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for 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_3-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 a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:05:57,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:05:57,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:05:57,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:05:57,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:05:57,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:05:57,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:05:57,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:05:57,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:05:57,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:05:57,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:05:57,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:05:57,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:05:57,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:05:57,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:05:57,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:05:57,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:05:57,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:05:57,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:05:57,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:05:57,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:05:57,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:05:57,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:05:57,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:05:57,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:05:57,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:05:57,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:05:57,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:05:57,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:05:57,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:05:57,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:05:57,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:05:57,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:05:57,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:05:57,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:05:57,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:05:57,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:05:57,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:05:57,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:05:57,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:05:57,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:05:57,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:05:57,743 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:05:57,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:05:57,744 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:05:57,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:05:57,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:05:57,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:05:57,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:05:57,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:05:57,747 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:05:57,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:05:57,748 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:05:57,748 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:05:57,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:05:57,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:05:57,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:05:57,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:05:57,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:05:57,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:05:57,750 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:05:57,750 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:05:57,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:05:57,750 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:05:57,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:05:57,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:05:57,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:05:57,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:05:57,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:05:57,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:05:57,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:05:57,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:05:57,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:05:57,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:05:57,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:05:57,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:05:57,753 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:05:57,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:05:57,754 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:05:57,754 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:05:58,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:05:58,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:05:58,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:05:58,099 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:05:58,099 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:05:58,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-30 13:05:59,291 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:05:59,611 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:05:59,611 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-30 13:05:59,632 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd22bf6d0/bad1d0950c2b410fb8c323d1bd996a4c/FLAG51a0861c1 [2023-08-30 13:05:59,651 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd22bf6d0/bad1d0950c2b410fb8c323d1bd996a4c [2023-08-30 13:05:59,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:05:59,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:05:59,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:05:59,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:05:59,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:05:59,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:05:59" (1/1) ... [2023-08-30 13:05:59,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@474ed7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:05:59, skipping insertion in model container [2023-08-30 13:05:59,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:05:59" (1/1) ... [2023-08-30 13:05:59,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:05:59,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:05:59,827 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:06:00,188 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-08-30 13:06:00,245 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:06:00,252 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:06:00,265 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:06:00,314 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-08-30 13:06:00,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:06:00,444 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:00,444 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:00,444 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:00,450 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:06:00,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00 WrapperNode [2023-08-30 13:06:00,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:06:00,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:00,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:06:00,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:06:00,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,520 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-08-30 13:06:00,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:00,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:06:00,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:06:00,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:06:00,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,576 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:06:00,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:06:00,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:06:00,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:06:00,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (1/1) ... [2023-08-30 13:06:00,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:06:00,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:06:00,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:06:00,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:06:00,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:06:00,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:06:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:06:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-30 13:06:00,648 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-30 13:06:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:06:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:06:00,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:06:00,650 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:06:00,951 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:06:00,953 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:06:01,213 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:06:01,249 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:06:01,250 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:06:01,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:01 BoogieIcfgContainer [2023-08-30 13:06:01,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:06:01,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:06:01,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:06:01,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:06:01,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:05:59" (1/3) ... [2023-08-30 13:06:01,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b751fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:06:01, skipping insertion in model container [2023-08-30 13:06:01,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00" (2/3) ... [2023-08-30 13:06:01,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b751fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:06:01, skipping insertion in model container [2023-08-30 13:06:01,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:01" (3/3) ... [2023-08-30 13:06:01,264 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-08-30 13:06:01,270 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:06:01,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:06:01,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 13:06:01,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:06:01,326 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:06:01,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 13:06:01,411 INFO L130 PetriNetUnfolder]: 8/193 cut-off events. [2023-08-30 13:06:01,411 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:06:01,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 193 events. 8/193 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 318 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 104. Up to 4 conditions per place. [2023-08-30 13:06:01,416 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 13:06:01,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:01,427 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:06:01,442 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:01,445 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:01,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:01,477 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2023-08-30 13:06:01,477 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:06:01,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 127 events. 2/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-30 13:06:01,480 INFO L119 LiptonReduction]: Number of co-enabled transitions 3480 [2023-08-30 13:06:06,651 INFO L134 LiptonReduction]: Checked pairs total: 9917 [2023-08-30 13:06:06,651 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-08-30 13:06:06,663 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:06:06,668 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;@761b71f9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:06:06,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 13:06:06,672 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-30 13:06:06,672 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:06:06,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:06,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:06:06,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:06,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:06,677 INFO L85 PathProgramCache]: Analyzing trace with hash 520523751, now seen corresponding path program 1 times [2023-08-30 13:06:06,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:06,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574884291] [2023-08-30 13:06:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:07,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:07,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574884291] [2023-08-30 13:06:07,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574884291] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:07,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:07,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:06:07,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618557554] [2023-08-30 13:06:07,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:07,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:06:07,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:07,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:06:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:06:07,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 266 [2023-08-30 13:06:07,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:07,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:07,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 266 [2023-08-30 13:06:07,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:08,052 INFO L130 PetriNetUnfolder]: 1195/1938 cut-off events. [2023-08-30 13:06:08,053 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-30 13:06:08,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3898 conditions, 1938 events. 1195/1938 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9116 event pairs, 926 based on Foata normal form. 0/1516 useless extension candidates. Maximal degree in co-relation 3812. Up to 1926 conditions per place. [2023-08-30 13:06:08,064 INFO L137 encePairwiseOnDemand]: 257/266 looper letters, 29 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2023-08-30 13:06:08,064 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 159 flow [2023-08-30 13:06:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:08,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:08,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2023-08-30 13:06:08,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.487468671679198 [2023-08-30 13:06:08,079 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2023-08-30 13:06:08,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2023-08-30 13:06:08,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:08,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2023-08-30 13:06:08,088 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,094 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,095 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 75 flow. Second operand 6 states and 778 transitions. [2023-08-30 13:06:08,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 159 flow [2023-08-30 13:06:08,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:08,100 INFO L231 Difference]: Finished difference. Result has 43 places, 37 transitions, 115 flow [2023-08-30 13:06:08,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2023-08-30 13:06:08,104 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2023-08-30 13:06:08,104 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 115 flow [2023-08-30 13:06:08,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:08,105 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:06:08,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:06:08,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:08,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:08,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1043630122, now seen corresponding path program 1 times [2023-08-30 13:06:08,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:08,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821588474] [2023-08-30 13:06:08,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:08,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:08,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:08,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821588474] [2023-08-30 13:06:08,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821588474] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:08,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:08,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:08,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834487335] [2023-08-30 13:06:08,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:08,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:08,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:08,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:08,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:08,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-08-30 13:06:08,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 115 flow. Second operand has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:08,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-08-30 13:06:08,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:09,019 INFO L130 PetriNetUnfolder]: 1185/1922 cut-off events. [2023-08-30 13:06:09,019 INFO L131 PetriNetUnfolder]: For 354/354 co-relation queries the response was YES. [2023-08-30 13:06:09,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4312 conditions, 1922 events. 1185/1922 cut-off events. For 354/354 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9088 event pairs, 772 based on Foata normal form. 3/1595 useless extension candidates. Maximal degree in co-relation 3706. Up to 1889 conditions per place. [2023-08-30 13:06:09,028 INFO L137 encePairwiseOnDemand]: 257/266 looper letters, 38 selfloop transitions, 14 changer transitions 0/53 dead transitions. [2023-08-30 13:06:09,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 263 flow [2023-08-30 13:06:09,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:09,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:09,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 783 transitions. [2023-08-30 13:06:09,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4906015037593985 [2023-08-30 13:06:09,031 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 783 transitions. [2023-08-30 13:06:09,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 783 transitions. [2023-08-30 13:06:09,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:09,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 783 transitions. [2023-08-30 13:06:09,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,037 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,037 INFO L175 Difference]: Start difference. First operand has 43 places, 37 transitions, 115 flow. Second operand 6 states and 783 transitions. [2023-08-30 13:06:09,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 263 flow [2023-08-30 13:06:09,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:09,040 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 196 flow [2023-08-30 13:06:09,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=196, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-30 13:06:09,041 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 11 predicate places. [2023-08-30 13:06:09,041 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 196 flow [2023-08-30 13:06:09,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:09,042 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:09,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:06:09,042 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:09,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:09,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2010502852, now seen corresponding path program 1 times [2023-08-30 13:06:09,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:09,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880400958] [2023-08-30 13:06:09,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:09,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:09,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:09,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880400958] [2023-08-30 13:06:09,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880400958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:09,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:09,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:09,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410165791] [2023-08-30 13:06:09,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:09,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:09,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:09,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:09,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:09,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-08-30 13:06:09,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:09,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-08-30 13:06:09,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:09,849 INFO L130 PetriNetUnfolder]: 1177/1910 cut-off events. [2023-08-30 13:06:09,850 INFO L131 PetriNetUnfolder]: For 1162/1162 co-relation queries the response was YES. [2023-08-30 13:06:09,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4895 conditions, 1910 events. 1177/1910 cut-off events. For 1162/1162 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9065 event pairs, 867 based on Foata normal form. 0/1584 useless extension candidates. Maximal degree in co-relation 4186. Up to 1885 conditions per place. [2023-08-30 13:06:09,859 INFO L137 encePairwiseOnDemand]: 257/266 looper letters, 42 selfloop transitions, 16 changer transitions 0/59 dead transitions. [2023-08-30 13:06:09,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 380 flow [2023-08-30 13:06:09,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:09,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 781 transitions. [2023-08-30 13:06:09,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4893483709273183 [2023-08-30 13:06:09,863 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 781 transitions. [2023-08-30 13:06:09,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 781 transitions. [2023-08-30 13:06:09,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:09,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 781 transitions. [2023-08-30 13:06:09,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,868 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,869 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 196 flow. Second operand 6 states and 781 transitions. [2023-08-30 13:06:09,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 380 flow [2023-08-30 13:06:09,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 59 transitions, 364 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:09,875 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 286 flow [2023-08-30 13:06:09,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2023-08-30 13:06:09,876 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-08-30 13:06:09,878 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 286 flow [2023-08-30 13:06:09,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:09,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:09,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:06:09,880 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:09,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:09,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2137217311, now seen corresponding path program 1 times [2023-08-30 13:06:09,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:09,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878359494] [2023-08-30 13:06:09,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:09,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:10,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:10,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:10,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878359494] [2023-08-30 13:06:10,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878359494] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:10,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:10,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:10,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623662212] [2023-08-30 13:06:10,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:10,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:10,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:10,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:10,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:10,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 13:06:10,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:10,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 13:06:10,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:10,982 INFO L130 PetriNetUnfolder]: 1169/1898 cut-off events. [2023-08-30 13:06:10,983 INFO L131 PetriNetUnfolder]: For 907/907 co-relation queries the response was YES. [2023-08-30 13:06:10,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4960 conditions, 1898 events. 1169/1898 cut-off events. For 907/907 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8993 event pairs, 673 based on Foata normal form. 2/1664 useless extension candidates. Maximal degree in co-relation 4275. Up to 1847 conditions per place. [2023-08-30 13:06:10,994 INFO L137 encePairwiseOnDemand]: 258/266 looper letters, 52 selfloop transitions, 15 changer transitions 0/68 dead transitions. [2023-08-30 13:06:10,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 475 flow [2023-08-30 13:06:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:06:10,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:06:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2023-08-30 13:06:11,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49097744360902257 [2023-08-30 13:06:11,000 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2023-08-30 13:06:11,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2023-08-30 13:06:11,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:11,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2023-08-30 13:06:11,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,005 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,005 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 286 flow. Second operand 5 states and 653 transitions. [2023-08-30 13:06:11,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 475 flow [2023-08-30 13:06:11,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 455 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:11,012 INFO L231 Difference]: Finished difference. Result has 62 places, 61 transitions, 345 flow [2023-08-30 13:06:11,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=345, PETRI_PLACES=62, PETRI_TRANSITIONS=61} [2023-08-30 13:06:11,013 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 23 predicate places. [2023-08-30 13:06:11,014 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 61 transitions, 345 flow [2023-08-30 13:06:11,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:11,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:11,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:06:11,015 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:11,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:11,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2098905507, now seen corresponding path program 1 times [2023-08-30 13:06:11,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:11,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818809326] [2023-08-30 13:06:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:11,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:11,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:11,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:11,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818809326] [2023-08-30 13:06:11,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818809326] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:11,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:11,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:11,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078250834] [2023-08-30 13:06:11,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:11,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:11,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:11,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:11,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:11,532 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 13:06:11,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 61 transitions, 345 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:11,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 13:06:11,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:11,860 INFO L130 PetriNetUnfolder]: 1181/1916 cut-off events. [2023-08-30 13:06:11,861 INFO L131 PetriNetUnfolder]: For 1625/1625 co-relation queries the response was YES. [2023-08-30 13:06:11,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5525 conditions, 1916 events. 1181/1916 cut-off events. For 1625/1625 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9039 event pairs, 827 based on Foata normal form. 2/1682 useless extension candidates. Maximal degree in co-relation 4693. Up to 1876 conditions per place. [2023-08-30 13:06:11,871 INFO L137 encePairwiseOnDemand]: 256/266 looper letters, 49 selfloop transitions, 28 changer transitions 0/78 dead transitions. [2023-08-30 13:06:11,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 78 transitions, 605 flow [2023-08-30 13:06:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 779 transitions. [2023-08-30 13:06:11,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2023-08-30 13:06:11,874 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 779 transitions. [2023-08-30 13:06:11,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 779 transitions. [2023-08-30 13:06:11,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:11,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 779 transitions. [2023-08-30 13:06:11,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,879 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,880 INFO L175 Difference]: Start difference. First operand has 62 places, 61 transitions, 345 flow. Second operand 6 states and 779 transitions. [2023-08-30 13:06:11,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 78 transitions, 605 flow [2023-08-30 13:06:11,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 78 transitions, 593 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:11,884 INFO L231 Difference]: Finished difference. Result has 68 places, 73 transitions, 494 flow [2023-08-30 13:06:11,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=68, PETRI_TRANSITIONS=73} [2023-08-30 13:06:11,885 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 29 predicate places. [2023-08-30 13:06:11,885 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 73 transitions, 494 flow [2023-08-30 13:06:11,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:11,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:11,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:06:11,886 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:11,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:11,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2098847847, now seen corresponding path program 2 times [2023-08-30 13:06:11,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:11,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320027531] [2023-08-30 13:06:11,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:11,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:12,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:12,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:12,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320027531] [2023-08-30 13:06:12,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320027531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:12,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:12,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:12,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704541226] [2023-08-30 13:06:12,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:12,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:12,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:12,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:12,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:12,377 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 13:06:12,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 73 transitions, 494 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,378 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:12,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 13:06:12,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:12,761 INFO L130 PetriNetUnfolder]: 1173/1904 cut-off events. [2023-08-30 13:06:12,761 INFO L131 PetriNetUnfolder]: For 1884/1884 co-relation queries the response was YES. [2023-08-30 13:06:12,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5700 conditions, 1904 events. 1173/1904 cut-off events. For 1884/1884 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9016 event pairs, 795 based on Foata normal form. 2/1672 useless extension candidates. Maximal degree in co-relation 4899. Up to 1854 conditions per place. [2023-08-30 13:06:12,773 INFO L137 encePairwiseOnDemand]: 258/266 looper letters, 58 selfloop transitions, 25 changer transitions 0/84 dead transitions. [2023-08-30 13:06:12,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 84 transitions, 743 flow [2023-08-30 13:06:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:06:12,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:06:12,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2023-08-30 13:06:12,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49097744360902257 [2023-08-30 13:06:12,776 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2023-08-30 13:06:12,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2023-08-30 13:06:12,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:12,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2023-08-30 13:06:12,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,782 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,783 INFO L175 Difference]: Start difference. First operand has 68 places, 73 transitions, 494 flow. Second operand 5 states and 653 transitions. [2023-08-30 13:06:12,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 84 transitions, 743 flow [2023-08-30 13:06:12,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 723 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:12,793 INFO L231 Difference]: Finished difference. Result has 72 places, 79 transitions, 596 flow [2023-08-30 13:06:12,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=596, PETRI_PLACES=72, PETRI_TRANSITIONS=79} [2023-08-30 13:06:12,796 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 33 predicate places. [2023-08-30 13:06:12,796 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 79 transitions, 596 flow [2023-08-30 13:06:12,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:12,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:12,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:06:12,798 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:12,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash 483271858, now seen corresponding path program 1 times [2023-08-30 13:06:12,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:12,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740895354] [2023-08-30 13:06:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:12,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:13,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:13,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740895354] [2023-08-30 13:06:13,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740895354] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:13,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:13,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:13,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769395682] [2023-08-30 13:06:13,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:13,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:13,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:13,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:13,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:13,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:06:13,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 79 transitions, 596 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:13,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:06:13,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:14,087 INFO L130 PetriNetUnfolder]: 1189/1928 cut-off events. [2023-08-30 13:06:14,087 INFO L131 PetriNetUnfolder]: For 2297/2297 co-relation queries the response was YES. [2023-08-30 13:06:14,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6069 conditions, 1928 events. 1189/1928 cut-off events. For 2297/2297 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9271 event pairs, 651 based on Foata normal form. 4/1698 useless extension candidates. Maximal degree in co-relation 5226. Up to 1885 conditions per place. [2023-08-30 13:06:14,101 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 68 selfloop transitions, 27 changer transitions 0/96 dead transitions. [2023-08-30 13:06:14,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 96 transitions, 887 flow [2023-08-30 13:06:14,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:14,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:14,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1007 transitions. [2023-08-30 13:06:14,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732142857142857 [2023-08-30 13:06:14,106 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1007 transitions. [2023-08-30 13:06:14,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1007 transitions. [2023-08-30 13:06:14,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:14,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1007 transitions. [2023-08-30 13:06:14,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,112 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,112 INFO L175 Difference]: Start difference. First operand has 72 places, 79 transitions, 596 flow. Second operand 8 states and 1007 transitions. [2023-08-30 13:06:14,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 96 transitions, 887 flow [2023-08-30 13:06:14,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 96 transitions, 850 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-30 13:06:14,120 INFO L231 Difference]: Finished difference. Result has 80 places, 89 transitions, 719 flow [2023-08-30 13:06:14,120 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=719, PETRI_PLACES=80, PETRI_TRANSITIONS=89} [2023-08-30 13:06:14,120 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 41 predicate places. [2023-08-30 13:06:14,121 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 89 transitions, 719 flow [2023-08-30 13:06:14,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:14,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:14,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 13:06:14,123 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:14,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:14,123 INFO L85 PathProgramCache]: Analyzing trace with hash 483266433, now seen corresponding path program 1 times [2023-08-30 13:06:14,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:14,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147695120] [2023-08-30 13:06:14,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:14,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:14,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:14,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:14,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147695120] [2023-08-30 13:06:14,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147695120] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:14,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:14,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:14,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548573121] [2023-08-30 13:06:14,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:14,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:14,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:14,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:14,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:14,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-08-30 13:06:14,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 89 transitions, 719 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:14,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-08-30 13:06:14,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:14,958 INFO L130 PetriNetUnfolder]: 1597/2616 cut-off events. [2023-08-30 13:06:14,958 INFO L131 PetriNetUnfolder]: For 3640/3640 co-relation queries the response was YES. [2023-08-30 13:06:14,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8474 conditions, 2616 events. 1597/2616 cut-off events. For 3640/3640 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 13917 event pairs, 558 based on Foata normal form. 40/2334 useless extension candidates. Maximal degree in co-relation 8314. Up to 1768 conditions per place. [2023-08-30 13:06:14,981 INFO L137 encePairwiseOnDemand]: 253/266 looper letters, 112 selfloop transitions, 20 changer transitions 0/133 dead transitions. [2023-08-30 13:06:14,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 133 transitions, 1206 flow [2023-08-30 13:06:14,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:14,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:14,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 801 transitions. [2023-08-30 13:06:14,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018796992481203 [2023-08-30 13:06:14,985 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 801 transitions. [2023-08-30 13:06:14,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 801 transitions. [2023-08-30 13:06:14,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:14,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 801 transitions. [2023-08-30 13:06:14,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,991 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,991 INFO L175 Difference]: Start difference. First operand has 80 places, 89 transitions, 719 flow. Second operand 6 states and 801 transitions. [2023-08-30 13:06:14,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 133 transitions, 1206 flow [2023-08-30 13:06:15,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 133 transitions, 1157 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:15,007 INFO L231 Difference]: Finished difference. Result has 83 places, 99 transitions, 815 flow [2023-08-30 13:06:15,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=815, PETRI_PLACES=83, PETRI_TRANSITIONS=99} [2023-08-30 13:06:15,007 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 44 predicate places. [2023-08-30 13:06:15,008 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 99 transitions, 815 flow [2023-08-30 13:06:15,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:15,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:15,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 13:06:15,009 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:15,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:15,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1829229238, now seen corresponding path program 2 times [2023-08-30 13:06:15,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:15,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752477169] [2023-08-30 13:06:15,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:15,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:15,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:15,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752477169] [2023-08-30 13:06:15,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752477169] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:15,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:15,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:15,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090510355] [2023-08-30 13:06:15,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:15,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:15,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:15,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:15,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:15,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:06:15,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 99 transitions, 815 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:15,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:06:15,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:16,369 INFO L130 PetriNetUnfolder]: 1621/2652 cut-off events. [2023-08-30 13:06:16,370 INFO L131 PetriNetUnfolder]: For 5618/5618 co-relation queries the response was YES. [2023-08-30 13:06:16,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9991 conditions, 2652 events. 1621/2652 cut-off events. For 5618/5618 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 13917 event pairs, 747 based on Foata normal form. 4/2334 useless extension candidates. Maximal degree in co-relation 9029. Up to 2601 conditions per place. [2023-08-30 13:06:16,387 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 87 selfloop transitions, 35 changer transitions 0/123 dead transitions. [2023-08-30 13:06:16,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 123 transitions, 1255 flow [2023-08-30 13:06:16,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:16,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1009 transitions. [2023-08-30 13:06:16,391 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741541353383459 [2023-08-30 13:06:16,391 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1009 transitions. [2023-08-30 13:06:16,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1009 transitions. [2023-08-30 13:06:16,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:16,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1009 transitions. [2023-08-30 13:06:16,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 126.125) internal successors, (1009), 8 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,397 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,397 INFO L175 Difference]: Start difference. First operand has 83 places, 99 transitions, 815 flow. Second operand 8 states and 1009 transitions. [2023-08-30 13:06:16,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 123 transitions, 1255 flow [2023-08-30 13:06:16,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 123 transitions, 1241 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:16,410 INFO L231 Difference]: Finished difference. Result has 91 places, 115 transitions, 1088 flow [2023-08-30 13:06:16,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1088, PETRI_PLACES=91, PETRI_TRANSITIONS=115} [2023-08-30 13:06:16,411 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 52 predicate places. [2023-08-30 13:06:16,411 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 115 transitions, 1088 flow [2023-08-30 13:06:16,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,412 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:16,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:16,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 13:06:16,413 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:16,413 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:16,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1830411268, now seen corresponding path program 3 times [2023-08-30 13:06:16,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:16,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972908821] [2023-08-30 13:06:16,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:16,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:16,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:16,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972908821] [2023-08-30 13:06:16,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972908821] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:16,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:16,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:16,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448798467] [2023-08-30 13:06:16,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:16,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:16,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:16,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:16,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:17,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:06:17,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 115 transitions, 1088 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:17,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:06:17,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:17,762 INFO L130 PetriNetUnfolder]: 1633/2670 cut-off events. [2023-08-30 13:06:17,762 INFO L131 PetriNetUnfolder]: For 6951/6951 co-relation queries the response was YES. [2023-08-30 13:06:17,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10831 conditions, 2670 events. 1633/2670 cut-off events. For 6951/6951 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 14014 event pairs, 750 based on Foata normal form. 4/2352 useless extension candidates. Maximal degree in co-relation 9524. Up to 2603 conditions per place. [2023-08-30 13:06:17,782 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 84 selfloop transitions, 46 changer transitions 0/131 dead transitions. [2023-08-30 13:06:17,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 131 transitions, 1470 flow [2023-08-30 13:06:17,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:17,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1009 transitions. [2023-08-30 13:06:17,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741541353383459 [2023-08-30 13:06:17,787 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1009 transitions. [2023-08-30 13:06:17,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1009 transitions. [2023-08-30 13:06:17,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:17,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1009 transitions. [2023-08-30 13:06:17,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 126.125) internal successors, (1009), 8 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,793 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,793 INFO L175 Difference]: Start difference. First operand has 91 places, 115 transitions, 1088 flow. Second operand 8 states and 1009 transitions. [2023-08-30 13:06:17,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 131 transitions, 1470 flow [2023-08-30 13:06:17,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 131 transitions, 1405 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:17,809 INFO L231 Difference]: Finished difference. Result has 97 places, 123 transitions, 1246 flow [2023-08-30 13:06:17,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1027, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1246, PETRI_PLACES=97, PETRI_TRANSITIONS=123} [2023-08-30 13:06:17,811 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 58 predicate places. [2023-08-30 13:06:17,811 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 123 transitions, 1246 flow [2023-08-30 13:06:17,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,812 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:17,812 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:17,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 13:06:17,812 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:17,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:17,813 INFO L85 PathProgramCache]: Analyzing trace with hash -639593780, now seen corresponding path program 1 times [2023-08-30 13:06:17,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:17,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333230214] [2023-08-30 13:06:17,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:17,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:18,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:18,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:18,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333230214] [2023-08-30 13:06:18,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333230214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:18,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:18,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:18,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935575768] [2023-08-30 13:06:18,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:18,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:18,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:18,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:18,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:18,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:06:18,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 123 transitions, 1246 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:18,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:06:18,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:19,308 INFO L130 PetriNetUnfolder]: 1655/2703 cut-off events. [2023-08-30 13:06:19,308 INFO L131 PetriNetUnfolder]: For 8729/8729 co-relation queries the response was YES. [2023-08-30 13:06:19,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11713 conditions, 2703 events. 1655/2703 cut-off events. For 8729/8729 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14187 event pairs, 912 based on Foata normal form. 4/2385 useless extension candidates. Maximal degree in co-relation 10666. Up to 2660 conditions per place. [2023-08-30 13:06:19,325 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 106 selfloop transitions, 38 changer transitions 0/145 dead transitions. [2023-08-30 13:06:19,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 145 transitions, 1767 flow [2023-08-30 13:06:19,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:19,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1004 transitions. [2023-08-30 13:06:19,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4718045112781955 [2023-08-30 13:06:19,329 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1004 transitions. [2023-08-30 13:06:19,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1004 transitions. [2023-08-30 13:06:19,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:19,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1004 transitions. [2023-08-30 13:06:19,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:19,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:19,335 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:19,335 INFO L175 Difference]: Start difference. First operand has 97 places, 123 transitions, 1246 flow. Second operand 8 states and 1004 transitions. [2023-08-30 13:06:19,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 145 transitions, 1767 flow [2023-08-30 13:06:19,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 145 transitions, 1696 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:19,358 INFO L231 Difference]: Finished difference. Result has 103 places, 139 transitions, 1506 flow [2023-08-30 13:06:19,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1189, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1506, PETRI_PLACES=103, PETRI_TRANSITIONS=139} [2023-08-30 13:06:19,359 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 64 predicate places. [2023-08-30 13:06:19,359 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 139 transitions, 1506 flow [2023-08-30 13:06:19,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:19,360 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:19,360 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:19,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 13:06:19,360 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:19,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:19,361 INFO L85 PathProgramCache]: Analyzing trace with hash -647176256, now seen corresponding path program 1 times [2023-08-30 13:06:19,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:19,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298341033] [2023-08-30 13:06:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:19,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:19,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:19,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298341033] [2023-08-30 13:06:19,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298341033] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:19,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:19,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:19,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879658554] [2023-08-30 13:06:19,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:19,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:19,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:19,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:19,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:19,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 13:06:19,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 139 transitions, 1506 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:19,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:19,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 13:06:19,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:20,296 INFO L130 PetriNetUnfolder]: 2216/3584 cut-off events. [2023-08-30 13:06:20,297 INFO L131 PetriNetUnfolder]: For 15061/15061 co-relation queries the response was YES. [2023-08-30 13:06:20,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16094 conditions, 3584 events. 2216/3584 cut-off events. For 15061/15061 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 20061 event pairs, 548 based on Foata normal form. 69/3250 useless extension candidates. Maximal degree in co-relation 15403. Up to 2403 conditions per place. [2023-08-30 13:06:20,325 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 153 selfloop transitions, 50 changer transitions 0/204 dead transitions. [2023-08-30 13:06:20,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 204 transitions, 2327 flow [2023-08-30 13:06:20,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:20,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:20,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 936 transitions. [2023-08-30 13:06:20,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5026852846401718 [2023-08-30 13:06:20,328 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 936 transitions. [2023-08-30 13:06:20,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 936 transitions. [2023-08-30 13:06:20,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:20,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 936 transitions. [2023-08-30 13:06:20,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 133.71428571428572) internal successors, (936), 7 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,333 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,333 INFO L175 Difference]: Start difference. First operand has 103 places, 139 transitions, 1506 flow. Second operand 7 states and 936 transitions. [2023-08-30 13:06:20,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 204 transitions, 2327 flow [2023-08-30 13:06:20,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 204 transitions, 2247 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:20,373 INFO L231 Difference]: Finished difference. Result has 109 places, 170 transitions, 1902 flow [2023-08-30 13:06:20,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1426, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1902, PETRI_PLACES=109, PETRI_TRANSITIONS=170} [2023-08-30 13:06:20,374 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 70 predicate places. [2023-08-30 13:06:20,374 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 170 transitions, 1902 flow [2023-08-30 13:06:20,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:20,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:20,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 13:06:20,375 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:20,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:20,376 INFO L85 PathProgramCache]: Analyzing trace with hash -636018860, now seen corresponding path program 2 times [2023-08-30 13:06:20,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:20,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020872327] [2023-08-30 13:06:20,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:20,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:20,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:20,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:20,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020872327] [2023-08-30 13:06:20,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020872327] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:20,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:20,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:20,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312259110] [2023-08-30 13:06:20,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:20,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:20,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:20,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:20,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:21,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:06:21,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 170 transitions, 1902 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:21,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:06:21,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:22,066 INFO L130 PetriNetUnfolder]: 2196/3554 cut-off events. [2023-08-30 13:06:22,067 INFO L131 PetriNetUnfolder]: For 21763/21763 co-relation queries the response was YES. [2023-08-30 13:06:22,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18751 conditions, 3554 events. 2196/3554 cut-off events. For 21763/21763 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 19865 event pairs, 1022 based on Foata normal form. 4/3163 useless extension candidates. Maximal degree in co-relation 18456. Up to 3504 conditions per place. [2023-08-30 13:06:22,097 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 137 selfloop transitions, 53 changer transitions 0/191 dead transitions. [2023-08-30 13:06:22,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 191 transitions, 2512 flow [2023-08-30 13:06:22,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:22,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1370 transitions. [2023-08-30 13:06:22,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46821599453178403 [2023-08-30 13:06:22,101 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1370 transitions. [2023-08-30 13:06:22,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1370 transitions. [2023-08-30 13:06:22,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:22,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1370 transitions. [2023-08-30 13:06:22,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,121 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,121 INFO L175 Difference]: Start difference. First operand has 109 places, 170 transitions, 1902 flow. Second operand 11 states and 1370 transitions. [2023-08-30 13:06:22,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 191 transitions, 2512 flow [2023-08-30 13:06:22,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 191 transitions, 2454 flow, removed 26 selfloop flow, removed 2 redundant places. [2023-08-30 13:06:22,218 INFO L231 Difference]: Finished difference. Result has 121 places, 186 transitions, 2236 flow [2023-08-30 13:06:22,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1844, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2236, PETRI_PLACES=121, PETRI_TRANSITIONS=186} [2023-08-30 13:06:22,220 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 82 predicate places. [2023-08-30 13:06:22,220 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 186 transitions, 2236 flow [2023-08-30 13:06:22,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:22,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:22,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 13:06:22,221 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:22,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash -647171263, now seen corresponding path program 2 times [2023-08-30 13:06:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:22,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354942700] [2023-08-30 13:06:22,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:22,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:22,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:22,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354942700] [2023-08-30 13:06:22,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354942700] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:22,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:22,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:22,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192004228] [2023-08-30 13:06:22,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:22,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:22,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:22,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:22,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:22,548 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 13:06:22,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 186 transitions, 2236 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:22,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 13:06:22,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:23,195 INFO L130 PetriNetUnfolder]: 2454/3963 cut-off events. [2023-08-30 13:06:23,195 INFO L131 PetriNetUnfolder]: For 25533/25533 co-relation queries the response was YES. [2023-08-30 13:06:23,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21159 conditions, 3963 events. 2454/3963 cut-off events. For 25533/25533 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 22883 event pairs, 530 based on Foata normal form. 40/3585 useless extension candidates. Maximal degree in co-relation 20723. Up to 2593 conditions per place. [2023-08-30 13:06:23,223 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 169 selfloop transitions, 67 changer transitions 0/237 dead transitions. [2023-08-30 13:06:23,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 237 transitions, 3157 flow [2023-08-30 13:06:23,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:23,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:23,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 927 transitions. [2023-08-30 13:06:23,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49785177228786254 [2023-08-30 13:06:23,227 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 927 transitions. [2023-08-30 13:06:23,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 927 transitions. [2023-08-30 13:06:23,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:23,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 927 transitions. [2023-08-30 13:06:23,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 132.42857142857142) internal successors, (927), 7 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,231 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,232 INFO L175 Difference]: Start difference. First operand has 121 places, 186 transitions, 2236 flow. Second operand 7 states and 927 transitions. [2023-08-30 13:06:23,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 237 transitions, 3157 flow [2023-08-30 13:06:23,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 237 transitions, 3076 flow, removed 33 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:23,291 INFO L231 Difference]: Finished difference. Result has 126 places, 212 transitions, 2639 flow [2023-08-30 13:06:23,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2155, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2639, PETRI_PLACES=126, PETRI_TRANSITIONS=212} [2023-08-30 13:06:23,292 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 87 predicate places. [2023-08-30 13:06:23,292 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 212 transitions, 2639 flow [2023-08-30 13:06:23,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:23,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:23,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 13:06:23,293 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:23,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:23,294 INFO L85 PathProgramCache]: Analyzing trace with hash -641669726, now seen corresponding path program 2 times [2023-08-30 13:06:23,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:23,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430806945] [2023-08-30 13:06:23,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:23,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:23,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:23,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430806945] [2023-08-30 13:06:23,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430806945] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:23,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:23,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:23,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111393043] [2023-08-30 13:06:23,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:23,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:23,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:23,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:23,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:23,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-08-30 13:06:23,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 212 transitions, 2639 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:23,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-08-30 13:06:23,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:24,324 INFO L130 PetriNetUnfolder]: 2501/4091 cut-off events. [2023-08-30 13:06:24,324 INFO L131 PetriNetUnfolder]: For 35084/35084 co-relation queries the response was YES. [2023-08-30 13:06:24,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23212 conditions, 4091 events. 2501/4091 cut-off events. For 35084/35084 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 23950 event pairs, 626 based on Foata normal form. 96/3816 useless extension candidates. Maximal degree in co-relation 23102. Up to 2728 conditions per place. [2023-08-30 13:06:24,356 INFO L137 encePairwiseOnDemand]: 253/266 looper letters, 227 selfloop transitions, 73 changer transitions 0/301 dead transitions. [2023-08-30 13:06:24,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 301 transitions, 4143 flow [2023-08-30 13:06:24,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:24,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:24,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 806 transitions. [2023-08-30 13:06:24,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050125313283208 [2023-08-30 13:06:24,359 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 806 transitions. [2023-08-30 13:06:24,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 806 transitions. [2023-08-30 13:06:24,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:24,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 806 transitions. [2023-08-30 13:06:24,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,363 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,364 INFO L175 Difference]: Start difference. First operand has 126 places, 212 transitions, 2639 flow. Second operand 6 states and 806 transitions. [2023-08-30 13:06:24,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 301 transitions, 4143 flow [2023-08-30 13:06:24,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 301 transitions, 4040 flow, removed 50 selfloop flow, removed 2 redundant places. [2023-08-30 13:06:24,534 INFO L231 Difference]: Finished difference. Result has 131 places, 251 transitions, 3378 flow [2023-08-30 13:06:24,534 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2564, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3378, PETRI_PLACES=131, PETRI_TRANSITIONS=251} [2023-08-30 13:06:24,535 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 92 predicate places. [2023-08-30 13:06:24,535 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 251 transitions, 3378 flow [2023-08-30 13:06:24,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:24,536 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:24,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 13:06:24,536 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:24,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:24,536 INFO L85 PathProgramCache]: Analyzing trace with hash 2090594741, now seen corresponding path program 1 times [2023-08-30 13:06:24,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:24,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622939620] [2023-08-30 13:06:24,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:24,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:25,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:25,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:25,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622939620] [2023-08-30 13:06:25,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622939620] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:25,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:25,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:25,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958117149] [2023-08-30 13:06:25,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:25,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:25,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:25,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:25,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:25,541 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:06:25,542 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 251 transitions, 3378 flow. Second operand has 11 states, 11 states have (on average 118.9090909090909) internal successors, (1308), 11 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:25,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:25,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:06:25,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:26,464 INFO L130 PetriNetUnfolder]: 2559/4178 cut-off events. [2023-08-30 13:06:26,464 INFO L131 PetriNetUnfolder]: For 39825/39825 co-relation queries the response was YES. [2023-08-30 13:06:26,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25557 conditions, 4178 events. 2559/4178 cut-off events. For 39825/39825 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 24491 event pairs, 1005 based on Foata normal form. 8/3815 useless extension candidates. Maximal degree in co-relation 25443. Up to 4018 conditions per place. [2023-08-30 13:06:26,500 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 190 selfloop transitions, 111 changer transitions 0/302 dead transitions. [2023-08-30 13:06:26,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 302 transitions, 4636 flow [2023-08-30 13:06:26,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:26,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:26,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1269 transitions. [2023-08-30 13:06:26,504 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4770676691729323 [2023-08-30 13:06:26,504 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1269 transitions. [2023-08-30 13:06:26,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1269 transitions. [2023-08-30 13:06:26,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:26,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1269 transitions. [2023-08-30 13:06:26,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.9) internal successors, (1269), 10 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:26,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:26,510 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:26,510 INFO L175 Difference]: Start difference. First operand has 131 places, 251 transitions, 3378 flow. Second operand 10 states and 1269 transitions. [2023-08-30 13:06:26,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 302 transitions, 4636 flow [2023-08-30 13:06:26,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 302 transitions, 4601 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:26,642 INFO L231 Difference]: Finished difference. Result has 141 places, 289 transitions, 4275 flow [2023-08-30 13:06:26,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3349, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4275, PETRI_PLACES=141, PETRI_TRANSITIONS=289} [2023-08-30 13:06:26,644 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 102 predicate places. [2023-08-30 13:06:26,644 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 289 transitions, 4275 flow [2023-08-30 13:06:26,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.9090909090909) internal successors, (1308), 11 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:26,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:26,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:26,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 13:06:26,645 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:26,645 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:26,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1588919953, now seen corresponding path program 2 times [2023-08-30 13:06:26,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:26,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099653940] [2023-08-30 13:06:26,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:26,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:27,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:27,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:27,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099653940] [2023-08-30 13:06:27,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099653940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:27,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:27,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:27,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496711912] [2023-08-30 13:06:27,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:27,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:27,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:27,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:27,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:27,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:06:27,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 289 transitions, 4275 flow. Second operand has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:27,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:06:27,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:28,561 INFO L130 PetriNetUnfolder]: 2642/4304 cut-off events. [2023-08-30 13:06:28,561 INFO L131 PetriNetUnfolder]: For 47527/47527 co-relation queries the response was YES. [2023-08-30 13:06:28,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27929 conditions, 4304 events. 2642/4304 cut-off events. For 47527/47527 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 25167 event pairs, 970 based on Foata normal form. 8/3941 useless extension candidates. Maximal degree in co-relation 27490. Up to 4148 conditions per place. [2023-08-30 13:06:28,592 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 220 selfloop transitions, 142 changer transitions 0/363 dead transitions. [2023-08-30 13:06:28,593 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 363 transitions, 6160 flow [2023-08-30 13:06:28,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:28,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:28,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1493 transitions. [2023-08-30 13:06:28,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46773182957393483 [2023-08-30 13:06:28,596 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1493 transitions. [2023-08-30 13:06:28,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1493 transitions. [2023-08-30 13:06:28,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:28,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1493 transitions. [2023-08-30 13:06:28,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 124.41666666666667) internal successors, (1493), 12 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,604 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,604 INFO L175 Difference]: Start difference. First operand has 141 places, 289 transitions, 4275 flow. Second operand 12 states and 1493 transitions. [2023-08-30 13:06:28,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 363 transitions, 6160 flow [2023-08-30 13:06:28,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 363 transitions, 6005 flow, removed 58 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:28,761 INFO L231 Difference]: Finished difference. Result has 155 places, 352 transitions, 5717 flow [2023-08-30 13:06:28,761 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=4145, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5717, PETRI_PLACES=155, PETRI_TRANSITIONS=352} [2023-08-30 13:06:28,762 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 116 predicate places. [2023-08-30 13:06:28,762 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 352 transitions, 5717 flow [2023-08-30 13:06:28,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:28,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:28,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 13:06:28,763 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:28,763 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:28,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1592460463, now seen corresponding path program 3 times [2023-08-30 13:06:28,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:28,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689568838] [2023-08-30 13:06:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:28,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:29,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:29,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:29,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689568838] [2023-08-30 13:06:29,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689568838] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:29,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:29,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:29,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153796876] [2023-08-30 13:06:29,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:29,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:29,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:29,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:29,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:29,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:06:29,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 352 transitions, 5717 flow. Second operand has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:29,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:29,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:06:29,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:30,674 INFO L130 PetriNetUnfolder]: 2602/4234 cut-off events. [2023-08-30 13:06:30,674 INFO L131 PetriNetUnfolder]: For 52954/52954 co-relation queries the response was YES. [2023-08-30 13:06:30,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28720 conditions, 4234 events. 2602/4234 cut-off events. For 52954/52954 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 24752 event pairs, 1017 based on Foata normal form. 8/3891 useless extension candidates. Maximal degree in co-relation 27888. Up to 4097 conditions per place. [2023-08-30 13:06:30,700 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 252 selfloop transitions, 129 changer transitions 0/382 dead transitions. [2023-08-30 13:06:30,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 382 transitions, 6901 flow [2023-08-30 13:06:30,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:30,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:30,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1495 transitions. [2023-08-30 13:06:30,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4683583959899749 [2023-08-30 13:06:30,705 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1495 transitions. [2023-08-30 13:06:30,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1495 transitions. [2023-08-30 13:06:30,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:30,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1495 transitions. [2023-08-30 13:06:30,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 124.58333333333333) internal successors, (1495), 12 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:30,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:30,714 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:30,714 INFO L175 Difference]: Start difference. First operand has 155 places, 352 transitions, 5717 flow. Second operand 12 states and 1495 transitions. [2023-08-30 13:06:30,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 382 transitions, 6901 flow [2023-08-30 13:06:30,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 382 transitions, 6757 flow, removed 51 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:30,864 INFO L231 Difference]: Finished difference. Result has 166 places, 370 transitions, 6308 flow [2023-08-30 13:06:30,864 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=5578, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6308, PETRI_PLACES=166, PETRI_TRANSITIONS=370} [2023-08-30 13:06:30,864 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 127 predicate places. [2023-08-30 13:06:30,865 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 370 transitions, 6308 flow [2023-08-30 13:06:30,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:30,865 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:30,865 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:30,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 13:06:30,865 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:30,866 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:30,866 INFO L85 PathProgramCache]: Analyzing trace with hash 649032021, now seen corresponding path program 1 times [2023-08-30 13:06:30,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:30,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130281553] [2023-08-30 13:06:30,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:30,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:31,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130281553] [2023-08-30 13:06:31,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130281553] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:31,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:31,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:31,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021865460] [2023-08-30 13:06:31,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:31,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:31,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:31,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:31,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:31,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 13:06:31,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 370 transitions, 6308 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:31,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 13:06:31,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:32,647 INFO L130 PetriNetUnfolder]: 4172/6986 cut-off events. [2023-08-30 13:06:32,648 INFO L131 PetriNetUnfolder]: For 94739/94750 co-relation queries the response was YES. [2023-08-30 13:06:32,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47889 conditions, 6986 events. 4172/6986 cut-off events. For 94739/94750 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 47331 event pairs, 1094 based on Foata normal form. 0/6340 useless extension candidates. Maximal degree in co-relation 47212. Up to 2347 conditions per place. [2023-08-30 13:06:32,692 INFO L137 encePairwiseOnDemand]: 255/266 looper letters, 426 selfloop transitions, 109 changer transitions 5/588 dead transitions. [2023-08-30 13:06:32,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 588 transitions, 10204 flow [2023-08-30 13:06:32,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:32,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1275 transitions. [2023-08-30 13:06:32,696 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5325814536340853 [2023-08-30 13:06:32,696 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1275 transitions. [2023-08-30 13:06:32,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1275 transitions. [2023-08-30 13:06:32,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:32,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1275 transitions. [2023-08-30 13:06:32,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 141.66666666666666) internal successors, (1275), 9 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:32,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:32,701 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:32,701 INFO L175 Difference]: Start difference. First operand has 166 places, 370 transitions, 6308 flow. Second operand 9 states and 1275 transitions. [2023-08-30 13:06:32,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 588 transitions, 10204 flow [2023-08-30 13:06:33,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 588 transitions, 10065 flow, removed 62 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:33,064 INFO L231 Difference]: Finished difference. Result has 175 places, 408 transitions, 7324 flow [2023-08-30 13:06:33,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=6173, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7324, PETRI_PLACES=175, PETRI_TRANSITIONS=408} [2023-08-30 13:06:33,065 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 136 predicate places. [2023-08-30 13:06:33,065 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 408 transitions, 7324 flow [2023-08-30 13:06:33,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:33,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:33,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 13:06:33,066 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:33,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:33,067 INFO L85 PathProgramCache]: Analyzing trace with hash 645920242, now seen corresponding path program 1 times [2023-08-30 13:06:33,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:33,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155628944] [2023-08-30 13:06:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:33,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:33,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:33,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:33,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155628944] [2023-08-30 13:06:33,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155628944] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:33,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:33,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:33,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240185680] [2023-08-30 13:06:33,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:33,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:33,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:33,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:33,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:34,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:06:34,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 408 transitions, 7324 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:34,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:06:34,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:36,314 INFO L130 PetriNetUnfolder]: 4582/7595 cut-off events. [2023-08-30 13:06:36,315 INFO L131 PetriNetUnfolder]: For 171677/171677 co-relation queries the response was YES. [2023-08-30 13:06:36,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55207 conditions, 7595 events. 4582/7595 cut-off events. For 171677/171677 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 50716 event pairs, 1347 based on Foata normal form. 8/7291 useless extension candidates. Maximal degree in co-relation 54396. Up to 6907 conditions per place. [2023-08-30 13:06:36,468 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 390 selfloop transitions, 142 changer transitions 20/553 dead transitions. [2023-08-30 13:06:36,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 553 transitions, 10791 flow [2023-08-30 13:06:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 13:06:36,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 13:06:36,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2712 transitions. [2023-08-30 13:06:36,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634313055365687 [2023-08-30 13:06:36,472 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2712 transitions. [2023-08-30 13:06:36,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2712 transitions. [2023-08-30 13:06:36,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:36,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2712 transitions. [2023-08-30 13:06:36,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 123.27272727272727) internal successors, (2712), 22 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:36,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:36,484 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:36,484 INFO L175 Difference]: Start difference. First operand has 175 places, 408 transitions, 7324 flow. Second operand 22 states and 2712 transitions. [2023-08-30 13:06:36,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 553 transitions, 10791 flow [2023-08-30 13:06:36,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 553 transitions, 10766 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-30 13:06:36,855 INFO L231 Difference]: Finished difference. Result has 201 places, 478 transitions, 8993 flow [2023-08-30 13:06:36,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=7302, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8993, PETRI_PLACES=201, PETRI_TRANSITIONS=478} [2023-08-30 13:06:36,856 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 162 predicate places. [2023-08-30 13:06:36,856 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 478 transitions, 8993 flow [2023-08-30 13:06:36,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:36,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:36,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:36,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 13:06:36,858 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:36,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:36,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1145301042, now seen corresponding path program 2 times [2023-08-30 13:06:36,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:36,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457377885] [2023-08-30 13:06:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:36,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:37,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:37,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457377885] [2023-08-30 13:06:37,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457377885] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:37,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:37,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:37,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605645524] [2023-08-30 13:06:37,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:37,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:37,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:37,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:37,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:06:37,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 478 transitions, 8993 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:37,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:06:37,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:40,273 INFO L130 PetriNetUnfolder]: 4572/7593 cut-off events. [2023-08-30 13:06:40,273 INFO L131 PetriNetUnfolder]: For 189391/189391 co-relation queries the response was YES. [2023-08-30 13:06:40,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57077 conditions, 7593 events. 4572/7593 cut-off events. For 189391/189391 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 50818 event pairs, 1672 based on Foata normal form. 6/7287 useless extension candidates. Maximal degree in co-relation 56936. Up to 6974 conditions per place. [2023-08-30 13:06:40,344 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 378 selfloop transitions, 153 changer transitions 4/536 dead transitions. [2023-08-30 13:06:40,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 536 transitions, 10789 flow [2023-08-30 13:06:40,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 13:06:40,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 13:06:40,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2343 transitions. [2023-08-30 13:06:40,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46359319351009104 [2023-08-30 13:06:40,348 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2343 transitions. [2023-08-30 13:06:40,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2343 transitions. [2023-08-30 13:06:40,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:40,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2343 transitions. [2023-08-30 13:06:40,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 123.3157894736842) internal successors, (2343), 19 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 266.0) internal successors, (5320), 20 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,358 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 266.0) internal successors, (5320), 20 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,358 INFO L175 Difference]: Start difference. First operand has 201 places, 478 transitions, 8993 flow. Second operand 19 states and 2343 transitions. [2023-08-30 13:06:40,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 536 transitions, 10789 flow [2023-08-30 13:06:40,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 536 transitions, 10376 flow, removed 122 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:40,930 INFO L231 Difference]: Finished difference. Result has 218 places, 498 transitions, 9400 flow [2023-08-30 13:06:40,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=8618, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=9400, PETRI_PLACES=218, PETRI_TRANSITIONS=498} [2023-08-30 13:06:40,931 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 179 predicate places. [2023-08-30 13:06:40,931 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 498 transitions, 9400 flow [2023-08-30 13:06:40,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:40,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:40,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 13:06:40,932 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:40,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:40,932 INFO L85 PathProgramCache]: Analyzing trace with hash -431228113, now seen corresponding path program 2 times [2023-08-30 13:06:40,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:40,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036361563] [2023-08-30 13:06:40,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:40,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:41,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:41,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036361563] [2023-08-30 13:06:41,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036361563] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:41,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:41,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:41,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618609967] [2023-08-30 13:06:41,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:41,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:41,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:41,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:41,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:41,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 266 [2023-08-30 13:06:41,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 498 transitions, 9400 flow. Second operand has 9 states, 9 states have (on average 120.22222222222223) internal successors, (1082), 9 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) [2023-08-30 13:06:41,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:41,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 266 [2023-08-30 13:06:41,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:44,521 INFO L130 PetriNetUnfolder]: 6580/11087 cut-off events. [2023-08-30 13:06:44,521 INFO L131 PetriNetUnfolder]: For 303408/303408 co-relation queries the response was YES. [2023-08-30 13:06:44,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84616 conditions, 11087 events. 6580/11087 cut-off events. For 303408/303408 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 80738 event pairs, 1247 based on Foata normal form. 22/10731 useless extension candidates. Maximal degree in co-relation 83509. Up to 4046 conditions per place. [2023-08-30 13:06:44,611 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 415 selfloop transitions, 368 changer transitions 22/806 dead transitions. [2023-08-30 13:06:44,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 806 transitions, 15837 flow [2023-08-30 13:06:44,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:44,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:44,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1729 transitions. [2023-08-30 13:06:44,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-30 13:06:44,613 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1729 transitions. [2023-08-30 13:06:44,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1729 transitions. [2023-08-30 13:06:44,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:44,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1729 transitions. [2023-08-30 13:06:44,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 266.0) internal successors, (3724), 14 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,619 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 266.0) internal successors, (3724), 14 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,620 INFO L175 Difference]: Start difference. First operand has 218 places, 498 transitions, 9400 flow. Second operand 13 states and 1729 transitions. [2023-08-30 13:06:44,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 806 transitions, 15837 flow [2023-08-30 13:06:45,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 806 transitions, 15548 flow, removed 66 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:45,449 INFO L231 Difference]: Finished difference. Result has 232 places, 654 transitions, 13713 flow [2023-08-30 13:06:45,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=9151, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13713, PETRI_PLACES=232, PETRI_TRANSITIONS=654} [2023-08-30 13:06:45,450 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 193 predicate places. [2023-08-30 13:06:45,450 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 654 transitions, 13713 flow [2023-08-30 13:06:45,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.22222222222223) internal successors, (1082), 9 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) [2023-08-30 13:06:45,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:45,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:45,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 13:06:45,451 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:45,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:45,451 INFO L85 PathProgramCache]: Analyzing trace with hash -437179853, now seen corresponding path program 3 times [2023-08-30 13:06:45,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:45,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000430482] [2023-08-30 13:06:45,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:45,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:45,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:45,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000430482] [2023-08-30 13:06:45,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000430482] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:45,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:45,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:45,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186737540] [2023-08-30 13:06:45,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:45,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:45,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:45,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:45,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:45,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 13:06:45,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 654 transitions, 13713 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:45,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:45,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 13:06:45,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:49,474 INFO L130 PetriNetUnfolder]: 7838/13496 cut-off events. [2023-08-30 13:06:49,474 INFO L131 PetriNetUnfolder]: For 462945/463279 co-relation queries the response was YES. [2023-08-30 13:06:49,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111395 conditions, 13496 events. 7838/13496 cut-off events. For 462945/463279 co-relation queries the response was YES. Maximal size of possible extension queue 961. Compared 105682 event pairs, 2114 based on Foata normal form. 128/13026 useless extension candidates. Maximal degree in co-relation 109581. Up to 5908 conditions per place. [2023-08-30 13:06:49,692 INFO L137 encePairwiseOnDemand]: 255/266 looper letters, 606 selfloop transitions, 190 changer transitions 3/866 dead transitions. [2023-08-30 13:06:49,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 866 transitions, 19005 flow [2023-08-30 13:06:49,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:49,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:49,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1125 transitions. [2023-08-30 13:06:49,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286654135338346 [2023-08-30 13:06:49,694 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1125 transitions. [2023-08-30 13:06:49,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1125 transitions. [2023-08-30 13:06:49,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:49,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1125 transitions. [2023-08-30 13:06:49,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 140.625) internal successors, (1125), 8 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,701 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,701 INFO L175 Difference]: Start difference. First operand has 232 places, 654 transitions, 13713 flow. Second operand 8 states and 1125 transitions. [2023-08-30 13:06:49,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 866 transitions, 19005 flow [2023-08-30 13:06:51,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 866 transitions, 18674 flow, removed 145 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:51,552 INFO L231 Difference]: Finished difference. Result has 238 places, 702 transitions, 15452 flow [2023-08-30 13:06:51,552 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=13460, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15452, PETRI_PLACES=238, PETRI_TRANSITIONS=702} [2023-08-30 13:06:51,552 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 199 predicate places. [2023-08-30 13:06:51,553 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 702 transitions, 15452 flow [2023-08-30 13:06:51,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:51,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:51,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 13:06:51,553 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:51,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:51,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1330336417, now seen corresponding path program 1 times [2023-08-30 13:06:51,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:51,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769549542] [2023-08-30 13:06:51,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:51,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:51,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:51,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:51,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769549542] [2023-08-30 13:06:51,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769549542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:51,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:51,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:51,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345408228] [2023-08-30 13:06:51,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:51,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:51,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:51,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:51,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:51,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 13:06:51,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 702 transitions, 15452 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:51,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 13:06:51,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:55,549 INFO L130 PetriNetUnfolder]: 8007/13869 cut-off events. [2023-08-30 13:06:55,549 INFO L131 PetriNetUnfolder]: For 492571/492809 co-relation queries the response was YES. [2023-08-30 13:06:55,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115144 conditions, 13869 events. 8007/13869 cut-off events. For 492571/492809 co-relation queries the response was YES. Maximal size of possible extension queue 970. Compared 109646 event pairs, 2125 based on Foata normal form. 122/13400 useless extension candidates. Maximal degree in co-relation 113066. Up to 4236 conditions per place. [2023-08-30 13:06:55,706 INFO L137 encePairwiseOnDemand]: 254/266 looper letters, 671 selfloop transitions, 260 changer transitions 7/1005 dead transitions. [2023-08-30 13:06:55,707 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1005 transitions, 22177 flow [2023-08-30 13:06:55,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:55,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:55,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1402 transitions. [2023-08-30 13:06:55,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5270676691729324 [2023-08-30 13:06:55,709 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1402 transitions. [2023-08-30 13:06:55,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1402 transitions. [2023-08-30 13:06:55,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:55,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1402 transitions. [2023-08-30 13:06:55,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:55,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:55,712 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:55,712 INFO L175 Difference]: Start difference. First operand has 238 places, 702 transitions, 15452 flow. Second operand 10 states and 1402 transitions. [2023-08-30 13:06:55,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1005 transitions, 22177 flow [2023-08-30 13:06:58,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 1005 transitions, 21929 flow, removed 99 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:58,218 INFO L231 Difference]: Finished difference. Result has 247 places, 759 transitions, 17390 flow [2023-08-30 13:06:58,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=15226, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=17390, PETRI_PLACES=247, PETRI_TRANSITIONS=759} [2023-08-30 13:06:58,219 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 208 predicate places. [2023-08-30 13:06:58,219 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 759 transitions, 17390 flow [2023-08-30 13:06:58,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:58,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:58,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:58,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 13:06:58,220 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:58,220 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:58,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1545937541, now seen corresponding path program 1 times [2023-08-30 13:06:58,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:58,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060573473] [2023-08-30 13:06:58,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:58,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:59,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:59,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060573473] [2023-08-30 13:06:59,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060573473] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:59,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:59,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:59,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680551941] [2023-08-30 13:06:59,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:59,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:59,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:59,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:59,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:59,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-08-30 13:06:59,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 759 transitions, 17390 flow. Second operand has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 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) [2023-08-30 13:06:59,568 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:59,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-08-30 13:06:59,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:04,582 INFO L130 PetriNetUnfolder]: 8583/14703 cut-off events. [2023-08-30 13:07:04,582 INFO L131 PetriNetUnfolder]: For 542615/542615 co-relation queries the response was YES. [2023-08-30 13:07:04,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124242 conditions, 14703 events. 8583/14703 cut-off events. For 542615/542615 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 115178 event pairs, 3107 based on Foata normal form. 139/14328 useless extension candidates. Maximal degree in co-relation 118423. Up to 13167 conditions per place. [2023-08-30 13:07:04,755 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 614 selfloop transitions, 273 changer transitions 49/937 dead transitions. [2023-08-30 13:07:04,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 937 transitions, 23380 flow [2023-08-30 13:07:04,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 13:07:04,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 13:07:04,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2945 transitions. [2023-08-30 13:07:04,759 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46130952380952384 [2023-08-30 13:07:04,759 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2945 transitions. [2023-08-30 13:07:04,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2945 transitions. [2023-08-30 13:07:04,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:04,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2945 transitions. [2023-08-30 13:07:04,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 122.70833333333333) internal successors, (2945), 24 states have internal predecessors, (2945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:04,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:04,766 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:04,766 INFO L175 Difference]: Start difference. First operand has 247 places, 759 transitions, 17390 flow. Second operand 24 states and 2945 transitions. [2023-08-30 13:07:04,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 937 transitions, 23380 flow [2023-08-30 13:07:07,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 937 transitions, 23177 flow, removed 101 selfloop flow, removed 1 redundant places. [2023-08-30 13:07:07,448 INFO L231 Difference]: Finished difference. Result has 280 places, 791 transitions, 18917 flow [2023-08-30 13:07:07,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=17223, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=18917, PETRI_PLACES=280, PETRI_TRANSITIONS=791} [2023-08-30 13:07:07,449 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 241 predicate places. [2023-08-30 13:07:07,449 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 791 transitions, 18917 flow [2023-08-30 13:07:07,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 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) [2023-08-30 13:07:07,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:07,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:07,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 13:07:07,450 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:07,450 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:07,450 INFO L85 PathProgramCache]: Analyzing trace with hash -246887853, now seen corresponding path program 4 times [2023-08-30 13:07:07,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:07,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462069070] [2023-08-30 13:07:07,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:07,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:07,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:07,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:07,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462069070] [2023-08-30 13:07:07,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462069070] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:07,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:07,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:07:07,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102172415] [2023-08-30 13:07:07,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:07,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:07:07,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:07,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:07:07,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:07:07,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 13:07:07,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 791 transitions, 18917 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:07,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:07,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 13:07:07,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:12,394 INFO L130 PetriNetUnfolder]: 8452/14710 cut-off events. [2023-08-30 13:07:12,395 INFO L131 PetriNetUnfolder]: For 548667/549431 co-relation queries the response was YES. [2023-08-30 13:07:12,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126742 conditions, 14710 events. 8452/14710 cut-off events. For 548667/549431 co-relation queries the response was YES. Maximal size of possible extension queue 1039. Compared 118154 event pairs, 1900 based on Foata normal form. 33/14077 useless extension candidates. Maximal degree in co-relation 126439. Up to 4450 conditions per place. [2023-08-30 13:07:12,534 INFO L137 encePairwiseOnDemand]: 254/266 looper letters, 472 selfloop transitions, 375 changer transitions 20/948 dead transitions. [2023-08-30 13:07:12,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 948 transitions, 22961 flow [2023-08-30 13:07:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:07:12,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:07:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1657 transitions. [2023-08-30 13:07:12,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5191102756892231 [2023-08-30 13:07:12,537 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1657 transitions. [2023-08-30 13:07:12,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1657 transitions. [2023-08-30 13:07:12,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:12,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1657 transitions. [2023-08-30 13:07:12,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 138.08333333333334) internal successors, (1657), 12 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:12,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:12,540 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:12,540 INFO L175 Difference]: Start difference. First operand has 280 places, 791 transitions, 18917 flow. Second operand 12 states and 1657 transitions. [2023-08-30 13:07:12,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 948 transitions, 22961 flow [2023-08-30 13:07:15,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 948 transitions, 22771 flow, removed 49 selfloop flow, removed 8 redundant places. [2023-08-30 13:07:15,056 INFO L231 Difference]: Finished difference. Result has 283 places, 806 transitions, 19972 flow [2023-08-30 13:07:15,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=18668, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=789, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=359, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19972, PETRI_PLACES=283, PETRI_TRANSITIONS=806} [2023-08-30 13:07:15,057 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 244 predicate places. [2023-08-30 13:07:15,057 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 806 transitions, 19972 flow [2023-08-30 13:07:15,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,057 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:15,057 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:15,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 13:07:15,058 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:15,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:15,058 INFO L85 PathProgramCache]: Analyzing trace with hash -744050276, now seen corresponding path program 1 times [2023-08-30 13:07:15,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:15,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745208828] [2023-08-30 13:07:15,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:15,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:15,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:15,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:15,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745208828] [2023-08-30 13:07:15,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745208828] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:15,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:15,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:07:15,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862016302] [2023-08-30 13:07:15,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:15,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:07:15,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:15,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:07:15,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:07:15,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:07:15,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 806 transitions, 19972 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:15,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:07:15,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:20,098 INFO L130 PetriNetUnfolder]: 8803/15161 cut-off events. [2023-08-30 13:07:20,099 INFO L131 PetriNetUnfolder]: For 631717/631717 co-relation queries the response was YES. [2023-08-30 13:07:20,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132789 conditions, 15161 events. 8803/15161 cut-off events. For 631717/631717 co-relation queries the response was YES. Maximal size of possible extension queue 998. Compared 120136 event pairs, 1973 based on Foata normal form. 112/14733 useless extension candidates. Maximal degree in co-relation 132270. Up to 10114 conditions per place. [2023-08-30 13:07:20,249 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 617 selfloop transitions, 295 changer transitions 3/916 dead transitions. [2023-08-30 13:07:20,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 916 transitions, 23573 flow [2023-08-30 13:07:20,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:07:20,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:07:20,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1160 transitions. [2023-08-30 13:07:20,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48454469507101083 [2023-08-30 13:07:20,251 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1160 transitions. [2023-08-30 13:07:20,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1160 transitions. [2023-08-30 13:07:20,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:20,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1160 transitions. [2023-08-30 13:07:20,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 128.88888888888889) internal successors, (1160), 9 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:20,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:20,255 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:20,255 INFO L175 Difference]: Start difference. First operand has 283 places, 806 transitions, 19972 flow. Second operand 9 states and 1160 transitions. [2023-08-30 13:07:20,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 916 transitions, 23573 flow [2023-08-30 13:07:23,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 916 transitions, 23050 flow, removed 109 selfloop flow, removed 9 redundant places. [2023-08-30 13:07:23,847 INFO L231 Difference]: Finished difference. Result has 286 places, 845 transitions, 21471 flow [2023-08-30 13:07:23,848 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=19375, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=21471, PETRI_PLACES=286, PETRI_TRANSITIONS=845} [2023-08-30 13:07:23,848 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 247 predicate places. [2023-08-30 13:07:23,848 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 845 transitions, 21471 flow [2023-08-30 13:07:23,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:23,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:23,849 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:23,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 13:07:23,849 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:23,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:23,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1863709713, now seen corresponding path program 1 times [2023-08-30 13:07:23,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:23,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628388213] [2023-08-30 13:07:23,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:23,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:24,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:24,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628388213] [2023-08-30 13:07:24,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628388213] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:24,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:24,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:07:24,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35245512] [2023-08-30 13:07:24,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:24,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:07:24,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:24,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:07:24,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:07:24,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 266 [2023-08-30 13:07:24,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 845 transitions, 21471 flow. Second operand has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:24,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:24,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 266 [2023-08-30 13:07:24,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:28,927 INFO L130 PetriNetUnfolder]: 8725/15034 cut-off events. [2023-08-30 13:07:28,927 INFO L131 PetriNetUnfolder]: For 640481/640481 co-relation queries the response was YES. [2023-08-30 13:07:29,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136202 conditions, 15034 events. 8725/15034 cut-off events. For 640481/640481 co-relation queries the response was YES. Maximal size of possible extension queue 980. Compared 119102 event pairs, 2801 based on Foata normal form. 111/14603 useless extension candidates. Maximal degree in co-relation 135890. Up to 6834 conditions per place. [2023-08-30 13:07:29,175 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 808 selfloop transitions, 245 changer transitions 7/1061 dead transitions. [2023-08-30 13:07:29,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1061 transitions, 27100 flow [2023-08-30 13:07:29,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:07:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:07:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1201 transitions. [2023-08-30 13:07:29,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5016708437761069 [2023-08-30 13:07:29,176 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1201 transitions. [2023-08-30 13:07:29,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1201 transitions. [2023-08-30 13:07:29,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:29,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1201 transitions. [2023-08-30 13:07:29,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 133.44444444444446) internal successors, (1201), 9 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:29,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:29,179 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:29,179 INFO L175 Difference]: Start difference. First operand has 286 places, 845 transitions, 21471 flow. Second operand 9 states and 1201 transitions. [2023-08-30 13:07:29,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1061 transitions, 27100 flow [2023-08-30 13:07:31,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 1061 transitions, 26874 flow, removed 82 selfloop flow, removed 5 redundant places. [2023-08-30 13:07:31,922 INFO L231 Difference]: Finished difference. Result has 293 places, 911 transitions, 23643 flow [2023-08-30 13:07:31,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=21255, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=845, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=23643, PETRI_PLACES=293, PETRI_TRANSITIONS=911} [2023-08-30 13:07:31,923 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 254 predicate places. [2023-08-30 13:07:31,923 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 911 transitions, 23643 flow [2023-08-30 13:07:31,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:31,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:31,923 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:31,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 13:07:31,924 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:31,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:31,924 INFO L85 PathProgramCache]: Analyzing trace with hash -246887852, now seen corresponding path program 3 times [2023-08-30 13:07:31,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:31,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138260462] [2023-08-30 13:07:31,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:31,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:32,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:32,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:32,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138260462] [2023-08-30 13:07:32,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138260462] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:32,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:32,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:32,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386986351] [2023-08-30 13:07:32,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:32,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:32,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:32,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:32,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:32,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:07:32,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 911 transitions, 23643 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:32,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:32,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:07:32,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:37,900 INFO L130 PetriNetUnfolder]: 8674/14984 cut-off events. [2023-08-30 13:07:37,901 INFO L131 PetriNetUnfolder]: For 626749/626749 co-relation queries the response was YES. [2023-08-30 13:07:38,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138961 conditions, 14984 events. 8674/14984 cut-off events. For 626749/626749 co-relation queries the response was YES. Maximal size of possible extension queue 1028. Compared 119373 event pairs, 3332 based on Foata normal form. 4/14446 useless extension candidates. Maximal degree in co-relation 138658. Up to 13944 conditions per place. [2023-08-30 13:07:38,055 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 774 selfloop transitions, 204 changer transitions 3/982 dead transitions. [2023-08-30 13:07:38,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 982 transitions, 26962 flow [2023-08-30 13:07:38,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:07:38,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:07:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2102 transitions. [2023-08-30 13:07:38,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46483856700574966 [2023-08-30 13:07:38,058 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2102 transitions. [2023-08-30 13:07:38,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2102 transitions. [2023-08-30 13:07:38,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:38,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2102 transitions. [2023-08-30 13:07:38,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 123.6470588235294) internal successors, (2102), 17 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:38,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:38,165 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:38,165 INFO L175 Difference]: Start difference. First operand has 293 places, 911 transitions, 23643 flow. Second operand 17 states and 2102 transitions. [2023-08-30 13:07:38,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 982 transitions, 26962 flow [2023-08-30 13:07:40,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 982 transitions, 26854 flow, removed 48 selfloop flow, removed 3 redundant places. [2023-08-30 13:07:40,764 INFO L231 Difference]: Finished difference. Result has 309 places, 920 transitions, 24230 flow [2023-08-30 13:07:40,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=23549, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=24230, PETRI_PLACES=309, PETRI_TRANSITIONS=920} [2023-08-30 13:07:40,765 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 270 predicate places. [2023-08-30 13:07:40,765 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 920 transitions, 24230 flow [2023-08-30 13:07:40,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:40,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:40,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:40,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 13:07:40,766 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:40,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:40,766 INFO L85 PathProgramCache]: Analyzing trace with hash -227225793, now seen corresponding path program 5 times [2023-08-30 13:07:40,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:40,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285937892] [2023-08-30 13:07:40,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:40,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:41,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:41,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285937892] [2023-08-30 13:07:41,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285937892] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:41,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:41,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:07:41,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705844652] [2023-08-30 13:07:41,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:41,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:07:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:41,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:07:41,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:07:41,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 13:07:41,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 920 transitions, 24230 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:41,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:41,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 13:07:41,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:46,091 INFO L130 PetriNetUnfolder]: 8172/14309 cut-off events. [2023-08-30 13:07:46,091 INFO L131 PetriNetUnfolder]: For 600332/600830 co-relation queries the response was YES. [2023-08-30 13:07:46,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132394 conditions, 14309 events. 8172/14309 cut-off events. For 600332/600830 co-relation queries the response was YES. Maximal size of possible extension queue 990. Compared 115386 event pairs, 2055 based on Foata normal form. 72/13744 useless extension candidates. Maximal degree in co-relation 131917. Up to 4821 conditions per place. [2023-08-30 13:07:46,234 INFO L137 encePairwiseOnDemand]: 256/266 looper letters, 738 selfloop transitions, 261 changer transitions 6/1094 dead transitions. [2023-08-30 13:07:46,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1094 transitions, 28540 flow [2023-08-30 13:07:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:07:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:07:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1412 transitions. [2023-08-30 13:07:46,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530827067669173 [2023-08-30 13:07:46,236 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1412 transitions. [2023-08-30 13:07:46,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1412 transitions. [2023-08-30 13:07:46,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:46,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1412 transitions. [2023-08-30 13:07:46,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 141.2) internal successors, (1412), 10 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:46,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:46,240 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:46,240 INFO L175 Difference]: Start difference. First operand has 309 places, 920 transitions, 24230 flow. Second operand 10 states and 1412 transitions. [2023-08-30 13:07:46,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1094 transitions, 28540 flow [2023-08-30 13:07:49,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 1094 transitions, 27604 flow, removed 221 selfloop flow, removed 17 redundant places. [2023-08-30 13:07:49,283 INFO L231 Difference]: Finished difference. Result has 300 places, 907 transitions, 23601 flow [2023-08-30 13:07:49,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=22858, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=903, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=257, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23601, PETRI_PLACES=300, PETRI_TRANSITIONS=907} [2023-08-30 13:07:49,284 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 261 predicate places. [2023-08-30 13:07:49,284 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 907 transitions, 23601 flow [2023-08-30 13:07:49,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:49,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:49,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:49,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 13:07:49,284 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:49,285 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:49,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1639792211, now seen corresponding path program 2 times [2023-08-30 13:07:49,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:49,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905420510] [2023-08-30 13:07:49,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:49,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:49,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:49,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:49,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905420510] [2023-08-30 13:07:49,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905420510] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:49,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:49,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:07:49,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674921935] [2023-08-30 13:07:49,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:49,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:07:49,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:49,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:07:49,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:07:50,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:07:50,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 907 transitions, 23601 flow. Second operand has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:50,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:50,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:07:50,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:57,200 INFO L130 PetriNetUnfolder]: 11099/19340 cut-off events. [2023-08-30 13:07:57,200 INFO L131 PetriNetUnfolder]: For 805719/805719 co-relation queries the response was YES. [2023-08-30 13:07:57,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173696 conditions, 19340 events. 11099/19340 cut-off events. For 805719/805719 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 161572 event pairs, 4431 based on Foata normal form. 27/18649 useless extension candidates. Maximal degree in co-relation 172573. Up to 11641 conditions per place. [2023-08-30 13:07:57,396 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 932 selfloop transitions, 333 changer transitions 73/1339 dead transitions. [2023-08-30 13:07:57,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1339 transitions, 36910 flow [2023-08-30 13:07:57,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 13:07:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 13:07:57,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3031 transitions. [2023-08-30 13:07:57,398 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47478070175438597 [2023-08-30 13:07:57,398 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3031 transitions. [2023-08-30 13:07:57,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3031 transitions. [2023-08-30 13:07:57,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:57,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3031 transitions. [2023-08-30 13:07:57,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 126.29166666666667) internal successors, (3031), 24 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:57,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:57,407 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:57,407 INFO L175 Difference]: Start difference. First operand has 300 places, 907 transitions, 23601 flow. Second operand 24 states and 3031 transitions. [2023-08-30 13:07:57,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1339 transitions, 36910 flow [2023-08-30 13:08:02,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 1339 transitions, 35956 flow, removed 226 selfloop flow, removed 7 redundant places. [2023-08-30 13:08:02,423 INFO L231 Difference]: Finished difference. Result has 326 places, 982 transitions, 26104 flow [2023-08-30 13:08:02,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=23050, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=26104, PETRI_PLACES=326, PETRI_TRANSITIONS=982} [2023-08-30 13:08:02,424 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 287 predicate places. [2023-08-30 13:08:02,424 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 982 transitions, 26104 flow [2023-08-30 13:08:02,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:02,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:02,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:08:02,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 13:08:02,425 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:08:02,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:02,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1946000732, now seen corresponding path program 1 times [2023-08-30 13:08:02,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:02,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476547556] [2023-08-30 13:08:02,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:02,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:08:02,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:02,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476547556] [2023-08-30 13:08:02,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476547556] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:02,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:02,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:08:02,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255777336] [2023-08-30 13:08:02,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:02,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:08:02,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:02,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:08:02,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:08:03,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 266 [2023-08-30 13:08:03,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 982 transitions, 26104 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:03,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:03,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 266 [2023-08-30 13:08:03,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:10,693 INFO L130 PetriNetUnfolder]: 12170/21446 cut-off events. [2023-08-30 13:08:10,693 INFO L131 PetriNetUnfolder]: For 819801/819801 co-relation queries the response was YES. [2023-08-30 13:08:10,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187201 conditions, 21446 events. 12170/21446 cut-off events. For 819801/819801 co-relation queries the response was YES. Maximal size of possible extension queue 1364. Compared 184691 event pairs, 5752 based on Foata normal form. 44/20693 useless extension candidates. Maximal degree in co-relation 186428. Up to 18304 conditions per place. [2023-08-30 13:08:10,947 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 927 selfloop transitions, 189 changer transitions 106/1223 dead transitions. [2023-08-30 13:08:10,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1223 transitions, 34425 flow [2023-08-30 13:08:10,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:08:10,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:08:10,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1426 transitions. [2023-08-30 13:08:10,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48735475051264526 [2023-08-30 13:08:10,949 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1426 transitions. [2023-08-30 13:08:10,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1426 transitions. [2023-08-30 13:08:10,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:10,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1426 transitions. [2023-08-30 13:08:10,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.63636363636363) internal successors, (1426), 11 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:10,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:10,954 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:10,954 INFO L175 Difference]: Start difference. First operand has 326 places, 982 transitions, 26104 flow. Second operand 11 states and 1426 transitions. [2023-08-30 13:08:10,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1223 transitions, 34425 flow [2023-08-30 13:08:15,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 1223 transitions, 34001 flow, removed 75 selfloop flow, removed 6 redundant places. [2023-08-30 13:08:15,978 INFO L231 Difference]: Finished difference. Result has 334 places, 1022 transitions, 27630 flow [2023-08-30 13:08:15,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=25702, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=800, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=27630, PETRI_PLACES=334, PETRI_TRANSITIONS=1022} [2023-08-30 13:08:15,979 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 295 predicate places. [2023-08-30 13:08:15,979 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 1022 transitions, 27630 flow [2023-08-30 13:08:15,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:15,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:15,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:08:15,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 13:08:15,980 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:08:15,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:15,980 INFO L85 PathProgramCache]: Analyzing trace with hash -566549549, now seen corresponding path program 1 times [2023-08-30 13:08:15,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:15,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098892079] [2023-08-30 13:08:15,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:15,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:16,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:08:16,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:16,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098892079] [2023-08-30 13:08:16,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098892079] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:16,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:16,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:08:16,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971809337] [2023-08-30 13:08:16,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:16,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:08:16,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:16,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:08:16,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:08:16,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:08:16,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 1022 transitions, 27630 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:16,589 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:16,589 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:08:16,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:24,359 INFO L130 PetriNetUnfolder]: 12018/21271 cut-off events. [2023-08-30 13:08:24,359 INFO L131 PetriNetUnfolder]: For 852020/852020 co-relation queries the response was YES. [2023-08-30 13:08:24,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188609 conditions, 21271 events. 12018/21271 cut-off events. For 852020/852020 co-relation queries the response was YES. Maximal size of possible extension queue 1417. Compared 184525 event pairs, 2635 based on Foata normal form. 232/20728 useless extension candidates. Maximal degree in co-relation 188090. Up to 10317 conditions per place. [2023-08-30 13:08:24,587 INFO L137 encePairwiseOnDemand]: 245/266 looper letters, 739 selfloop transitions, 451 changer transitions 8/1199 dead transitions. [2023-08-30 13:08:24,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1199 transitions, 32886 flow [2023-08-30 13:08:24,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:08:24,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:08:24,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1452 transitions. [2023-08-30 13:08:24,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49624060150375937 [2023-08-30 13:08:24,589 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1452 transitions. [2023-08-30 13:08:24,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1452 transitions. [2023-08-30 13:08:24,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:24,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1452 transitions. [2023-08-30 13:08:24,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:24,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:24,591 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:24,591 INFO L175 Difference]: Start difference. First operand has 334 places, 1022 transitions, 27630 flow. Second operand 11 states and 1452 transitions. [2023-08-30 13:08:24,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1199 transitions, 32886 flow [2023-08-30 13:08:30,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 1199 transitions, 32745 flow, removed 31 selfloop flow, removed 4 redundant places. [2023-08-30 13:08:30,741 INFO L231 Difference]: Finished difference. Result has 346 places, 1075 transitions, 30255 flow [2023-08-30 13:08:30,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=27328, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1018, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=394, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=30255, PETRI_PLACES=346, PETRI_TRANSITIONS=1075} [2023-08-30 13:08:30,742 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 307 predicate places. [2023-08-30 13:08:30,742 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 1075 transitions, 30255 flow [2023-08-30 13:08:30,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:30,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:30,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:08:30,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 13:08:30,742 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:08:30,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:30,742 INFO L85 PathProgramCache]: Analyzing trace with hash -483154063, now seen corresponding path program 3 times [2023-08-30 13:08:30,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:30,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578129239] [2023-08-30 13:08:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:30,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:31,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:08:31,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578129239] [2023-08-30 13:08:31,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578129239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:31,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:31,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:08:31,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830410314] [2023-08-30 13:08:31,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:31,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:08:31,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:31,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:08:31,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:08:31,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-08-30 13:08:31,706 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 1075 transitions, 30255 flow. Second operand has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:31,706 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:31,706 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-08-30 13:08:31,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:40,774 INFO L130 PetriNetUnfolder]: 11993/21278 cut-off events. [2023-08-30 13:08:40,775 INFO L131 PetriNetUnfolder]: For 923717/923717 co-relation queries the response was YES. [2023-08-30 13:08:40,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200053 conditions, 21278 events. 11993/21278 cut-off events. For 923717/923717 co-relation queries the response was YES. Maximal size of possible extension queue 1403. Compared 185028 event pairs, 5611 based on Foata normal form. 4/20507 useless extension candidates. Maximal degree in co-relation 197942. Up to 19733 conditions per place. [2023-08-30 13:08:41,025 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 808 selfloop transitions, 407 changer transitions 9/1225 dead transitions. [2023-08-30 13:08:41,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1225 transitions, 36219 flow [2023-08-30 13:08:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-08-30 13:08:41,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-08-30 13:08:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3776 transitions. [2023-08-30 13:08:41,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45791899102595196 [2023-08-30 13:08:41,029 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3776 transitions. [2023-08-30 13:08:41,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3776 transitions. [2023-08-30 13:08:41,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:41,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3776 transitions. [2023-08-30 13:08:41,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 121.80645161290323) internal successors, (3776), 31 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:41,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 266.0) internal successors, (8512), 32 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:41,039 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 266.0) internal successors, (8512), 32 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:41,039 INFO L175 Difference]: Start difference. First operand has 346 places, 1075 transitions, 30255 flow. Second operand 31 states and 3776 transitions. [2023-08-30 13:08:41,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1225 transitions, 36219 flow [2023-08-30 13:08:47,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1225 transitions, 35997 flow, removed 75 selfloop flow, removed 4 redundant places. [2023-08-30 13:08:48,016 INFO L231 Difference]: Finished difference. Result has 378 places, 1124 transitions, 32721 flow [2023-08-30 13:08:48,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=30061, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=32721, PETRI_PLACES=378, PETRI_TRANSITIONS=1124} [2023-08-30 13:08:48,016 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 339 predicate places. [2023-08-30 13:08:48,017 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 1124 transitions, 32721 flow [2023-08-30 13:08:48,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:48,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:08:48,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:08:48,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 13:08:48,017 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:08:48,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:08:48,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1909203609, now seen corresponding path program 2 times [2023-08-30 13:08:48,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:08:48,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395559023] [2023-08-30 13:08:48,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:08:48,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:08:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:08:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:08:48,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:08:48,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395559023] [2023-08-30 13:08:48,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395559023] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:08:48,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:08:48,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:08:48,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666062578] [2023-08-30 13:08:48,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:08:48,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:08:48,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:08:48,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:08:48,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:08:48,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 266 [2023-08-30 13:08:48,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 1124 transitions, 32721 flow. Second operand has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:48,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:08:48,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 266 [2023-08-30 13:08:48,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:08:56,860 INFO L130 PetriNetUnfolder]: 11734/20807 cut-off events. [2023-08-30 13:08:56,860 INFO L131 PetriNetUnfolder]: For 923675/923675 co-relation queries the response was YES. [2023-08-30 13:08:57,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194578 conditions, 20807 events. 11734/20807 cut-off events. For 923675/923675 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 179364 event pairs, 3113 based on Foata normal form. 111/20161 useless extension candidates. Maximal degree in co-relation 194005. Up to 8055 conditions per place. [2023-08-30 13:08:57,250 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 788 selfloop transitions, 455 changer transitions 6/1250 dead transitions. [2023-08-30 13:08:57,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1250 transitions, 36946 flow [2023-08-30 13:08:57,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:08:57,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:08:57,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1341 transitions. [2023-08-30 13:08:57,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5041353383458647 [2023-08-30 13:08:57,252 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1341 transitions. [2023-08-30 13:08:57,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1341 transitions. [2023-08-30 13:08:57,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:08:57,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1341 transitions. [2023-08-30 13:08:57,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.1) internal successors, (1341), 10 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:57,256 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:57,256 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:08:57,256 INFO L175 Difference]: Start difference. First operand has 378 places, 1124 transitions, 32721 flow. Second operand 10 states and 1341 transitions. [2023-08-30 13:08:57,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1250 transitions, 36946 flow [2023-08-30 13:09:05,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1250 transitions, 35478 flow, removed 333 selfloop flow, removed 15 redundant places. [2023-08-30 13:09:05,291 INFO L231 Difference]: Finished difference. Result has 375 places, 1131 transitions, 32782 flow [2023-08-30 13:09:05,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=30815, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=436, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=32782, PETRI_PLACES=375, PETRI_TRANSITIONS=1131} [2023-08-30 13:09:05,292 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 336 predicate places. [2023-08-30 13:09:05,292 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 1131 transitions, 32782 flow [2023-08-30 13:09:05,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:05,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:09:05,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:09:05,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 13:09:05,292 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:09:05,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:09:05,292 INFO L85 PathProgramCache]: Analyzing trace with hash -436242410, now seen corresponding path program 2 times [2023-08-30 13:09:05,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:09:05,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75814005] [2023-08-30 13:09:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:09:05,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:09:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:09:05,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:09:05,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:09:05,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75814005] [2023-08-30 13:09:05,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75814005] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:09:05,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:09:05,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:09:05,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910842111] [2023-08-30 13:09:05,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:09:05,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:09:05,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:09:05,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:09:05,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:09:06,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:09:06,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 1131 transitions, 32782 flow. Second operand has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:06,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:09:06,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:09:06,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:09:16,175 INFO L130 PetriNetUnfolder]: 12748/22865 cut-off events. [2023-08-30 13:09:16,175 INFO L131 PetriNetUnfolder]: For 960216/960216 co-relation queries the response was YES. [2023-08-30 13:09:16,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212989 conditions, 22865 events. 12748/22865 cut-off events. For 960216/960216 co-relation queries the response was YES. Maximal size of possible extension queue 1472. Compared 203069 event pairs, 6308 based on Foata normal form. 64/22094 useless extension candidates. Maximal degree in co-relation 212579. Up to 20037 conditions per place. [2023-08-30 13:09:16,458 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 1121 selfloop transitions, 163 changer transitions 86/1371 dead transitions. [2023-08-30 13:09:16,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 1371 transitions, 41581 flow [2023-08-30 13:09:16,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:09:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:09:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2005 transitions. [2023-08-30 13:09:16,463 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710996240601504 [2023-08-30 13:09:16,463 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2005 transitions. [2023-08-30 13:09:16,463 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2005 transitions. [2023-08-30 13:09:16,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:09:16,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2005 transitions. [2023-08-30 13:09:16,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 125.3125) internal successors, (2005), 16 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:16,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:16,467 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:16,467 INFO L175 Difference]: Start difference. First operand has 375 places, 1131 transitions, 32782 flow. Second operand 16 states and 2005 transitions. [2023-08-30 13:09:16,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 1371 transitions, 41581 flow [2023-08-30 13:09:24,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1371 transitions, 41351 flow, removed 83 selfloop flow, removed 4 redundant places. [2023-08-30 13:09:24,081 INFO L231 Difference]: Finished difference. Result has 391 places, 1184 transitions, 34743 flow [2023-08-30 13:09:24,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=32562, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=34743, PETRI_PLACES=391, PETRI_TRANSITIONS=1184} [2023-08-30 13:09:24,082 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 352 predicate places. [2023-08-30 13:09:24,082 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 1184 transitions, 34743 flow [2023-08-30 13:09:24,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:24,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:09:24,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:09:24,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 13:09:24,082 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:09:24,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:09:24,083 INFO L85 PathProgramCache]: Analyzing trace with hash 217238217, now seen corresponding path program 4 times [2023-08-30 13:09:24,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:09:24,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638524382] [2023-08-30 13:09:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:09:24,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:09:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:09:24,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:09:24,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:09:24,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638524382] [2023-08-30 13:09:24,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638524382] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:09:24,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:09:24,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:09:24,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088497893] [2023-08-30 13:09:24,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:09:24,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:09:24,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:09:24,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:09:24,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:09:24,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:09:24,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 1184 transitions, 34743 flow. Second operand has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:24,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:09:24,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:09:24,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:09:34,291 INFO L130 PetriNetUnfolder]: 12404/22269 cut-off events. [2023-08-30 13:09:34,291 INFO L131 PetriNetUnfolder]: For 943008/943008 co-relation queries the response was YES. [2023-08-30 13:09:34,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211195 conditions, 22269 events. 12404/22269 cut-off events. For 943008/943008 co-relation queries the response was YES. Maximal size of possible extension queue 1495. Compared 197902 event pairs, 6041 based on Foata normal form. 29/21506 useless extension candidates. Maximal degree in co-relation 209076. Up to 19210 conditions per place. [2023-08-30 13:09:34,729 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 959 selfloop transitions, 425 changer transitions 42/1427 dead transitions. [2023-08-30 13:09:34,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1427 transitions, 43614 flow [2023-08-30 13:09:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-30 13:09:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-30 13:09:34,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2535 transitions. [2023-08-30 13:09:34,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47650375939849626 [2023-08-30 13:09:34,732 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2535 transitions. [2023-08-30 13:09:34,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2535 transitions. [2023-08-30 13:09:34,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:09:34,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2535 transitions. [2023-08-30 13:09:34,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 126.75) internal successors, (2535), 20 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:34,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 266.0) internal successors, (5586), 21 states have internal predecessors, (5586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:34,738 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 266.0) internal successors, (5586), 21 states have internal predecessors, (5586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:34,738 INFO L175 Difference]: Start difference. First operand has 391 places, 1184 transitions, 34743 flow. Second operand 20 states and 2535 transitions. [2023-08-30 13:09:34,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 1427 transitions, 43614 flow [2023-08-30 13:09:41,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 1427 transitions, 43465 flow, removed 24 selfloop flow, removed 8 redundant places. [2023-08-30 13:09:41,304 INFO L231 Difference]: Finished difference. Result has 407 places, 1250 transitions, 37960 flow [2023-08-30 13:09:41,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=34601, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=789, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37960, PETRI_PLACES=407, PETRI_TRANSITIONS=1250} [2023-08-30 13:09:41,305 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 368 predicate places. [2023-08-30 13:09:41,305 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 1250 transitions, 37960 flow [2023-08-30 13:09:41,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:41,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:09:41,305 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:09:41,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 13:09:41,306 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:09:41,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:09:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1144596435, now seen corresponding path program 5 times [2023-08-30 13:09:41,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:09:41,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310444516] [2023-08-30 13:09:41,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:09:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:09:41,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:09:41,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:09:41,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:09:41,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310444516] [2023-08-30 13:09:41,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310444516] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:09:41,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:09:41,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:09:41,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688576810] [2023-08-30 13:09:41,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:09:41,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:09:41,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:09:41,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:09:41,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:09:42,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-08-30 13:09:42,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 1250 transitions, 37960 flow. Second operand has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 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) [2023-08-30 13:09:42,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:09:42,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-08-30 13:09:42,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:09:52,406 INFO L130 PetriNetUnfolder]: 12316/22166 cut-off events. [2023-08-30 13:09:52,406 INFO L131 PetriNetUnfolder]: For 963716/963716 co-relation queries the response was YES. [2023-08-30 13:09:52,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212013 conditions, 22166 events. 12316/22166 cut-off events. For 963716/963716 co-relation queries the response was YES. Maximal size of possible extension queue 1475. Compared 197229 event pairs, 6532 based on Foata normal form. 47/21431 useless extension candidates. Maximal degree in co-relation 211468. Up to 20836 conditions per place. [2023-08-30 13:09:52,697 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 952 selfloop transitions, 368 changer transitions 51/1372 dead transitions. [2023-08-30 13:09:52,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 1372 transitions, 43971 flow [2023-08-30 13:09:52,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:09:52,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:09:52,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2108 transitions. [2023-08-30 13:09:52,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46616541353383456 [2023-08-30 13:09:52,700 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2108 transitions. [2023-08-30 13:09:52,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2108 transitions. [2023-08-30 13:09:52,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:09:52,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2108 transitions. [2023-08-30 13:09:52,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:52,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:52,706 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:09:52,706 INFO L175 Difference]: Start difference. First operand has 407 places, 1250 transitions, 37960 flow. Second operand 17 states and 2108 transitions. [2023-08-30 13:09:52,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 1372 transitions, 43971 flow [2023-08-30 13:10:00,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 1372 transitions, 43656 flow, removed 145 selfloop flow, removed 5 redundant places. [2023-08-30 13:10:00,660 INFO L231 Difference]: Finished difference. Result has 424 places, 1260 transitions, 39065 flow [2023-08-30 13:10:00,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=37661, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=349, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=895, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=39065, PETRI_PLACES=424, PETRI_TRANSITIONS=1260} [2023-08-30 13:10:00,661 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 385 predicate places. [2023-08-30 13:10:00,661 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 1260 transitions, 39065 flow [2023-08-30 13:10:00,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 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) [2023-08-30 13:10:00,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:10:00,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:10:00,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 13:10:00,662 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:10:00,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:10:00,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2105968361, now seen corresponding path program 2 times [2023-08-30 13:10:00,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:10:00,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613654914] [2023-08-30 13:10:00,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:10:00,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:10:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:10:00,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:10:00,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:10:00,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613654914] [2023-08-30 13:10:00,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613654914] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:10:00,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:10:00,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:10:00,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684195297] [2023-08-30 13:10:00,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:10:00,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:10:00,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:10:00,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:10:00,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:10:01,292 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:10:01,293 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1260 transitions, 39065 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:01,293 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:10:01,293 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:10:01,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:10:11,590 INFO L130 PetriNetUnfolder]: 12358/22244 cut-off events. [2023-08-30 13:10:11,591 INFO L131 PetriNetUnfolder]: For 1013553/1013553 co-relation queries the response was YES. [2023-08-30 13:10:11,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216665 conditions, 22244 events. 12358/22244 cut-off events. For 1013553/1013553 co-relation queries the response was YES. Maximal size of possible extension queue 1488. Compared 197872 event pairs, 4761 based on Foata normal form. 48/21504 useless extension candidates. Maximal degree in co-relation 216233. Up to 11709 conditions per place. [2023-08-30 13:10:11,889 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 1115 selfloop transitions, 272 changer transitions 1/1389 dead transitions. [2023-08-30 13:10:11,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 1389 transitions, 44143 flow [2023-08-30 13:10:11,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:10:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:10:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1567 transitions. [2023-08-30 13:10:11,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4909147869674185 [2023-08-30 13:10:11,890 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1567 transitions. [2023-08-30 13:10:11,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1567 transitions. [2023-08-30 13:10:11,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:10:11,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1567 transitions. [2023-08-30 13:10:11,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.58333333333334) internal successors, (1567), 12 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:11,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:11,893 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:11,893 INFO L175 Difference]: Start difference. First operand has 424 places, 1260 transitions, 39065 flow. Second operand 12 states and 1567 transitions. [2023-08-30 13:10:11,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 1389 transitions, 44143 flow [2023-08-30 13:10:19,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 1389 transitions, 43656 flow, removed 73 selfloop flow, removed 10 redundant places. [2023-08-30 13:10:19,675 INFO L231 Difference]: Finished difference. Result has 431 places, 1299 transitions, 40839 flow [2023-08-30 13:10:19,675 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=38610, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1009, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=40839, PETRI_PLACES=431, PETRI_TRANSITIONS=1299} [2023-08-30 13:10:19,676 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 392 predicate places. [2023-08-30 13:10:19,676 INFO L495 AbstractCegarLoop]: Abstraction has has 431 places, 1299 transitions, 40839 flow [2023-08-30 13:10:19,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:19,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:10:19,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:10:19,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 13:10:19,677 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:10:19,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:10:19,677 INFO L85 PathProgramCache]: Analyzing trace with hash -2104786330, now seen corresponding path program 1 times [2023-08-30 13:10:19,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:10:19,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762682837] [2023-08-30 13:10:19,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:10:19,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:10:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:10:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:10:19,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:10:19,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762682837] [2023-08-30 13:10:19,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762682837] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:10:19,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:10:19,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:10:19,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708156261] [2023-08-30 13:10:19,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:10:19,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:10:19,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:10:19,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:10:19,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:10:20,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:10:20,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 1299 transitions, 40839 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:20,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:10:20,196 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:10:20,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:10:30,503 INFO L130 PetriNetUnfolder]: 12456/22414 cut-off events. [2023-08-30 13:10:30,503 INFO L131 PetriNetUnfolder]: For 1072337/1072337 co-relation queries the response was YES. [2023-08-30 13:10:30,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222243 conditions, 22414 events. 12456/22414 cut-off events. For 1072337/1072337 co-relation queries the response was YES. Maximal size of possible extension queue 1447. Compared 199300 event pairs, 4875 based on Foata normal form. 62/21682 useless extension candidates. Maximal degree in co-relation 220385. Up to 11709 conditions per place. [2023-08-30 13:10:30,805 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 1112 selfloop transitions, 283 changer transitions 1/1397 dead transitions. [2023-08-30 13:10:30,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 1397 transitions, 45435 flow [2023-08-30 13:10:30,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:10:30,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:10:30,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1182 transitions. [2023-08-30 13:10:30,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49373433583959897 [2023-08-30 13:10:30,807 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1182 transitions. [2023-08-30 13:10:30,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1182 transitions. [2023-08-30 13:10:30,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:10:30,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1182 transitions. [2023-08-30 13:10:30,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 131.33333333333334) internal successors, (1182), 9 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:30,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:30,809 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:30,809 INFO L175 Difference]: Start difference. First operand has 431 places, 1299 transitions, 40839 flow. Second operand 9 states and 1182 transitions. [2023-08-30 13:10:30,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 1397 transitions, 45435 flow [2023-08-30 13:10:39,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1397 transitions, 45046 flow, removed 62 selfloop flow, removed 4 redundant places. [2023-08-30 13:10:39,046 INFO L231 Difference]: Finished difference. Result has 438 places, 1319 transitions, 42229 flow [2023-08-30 13:10:39,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=40468, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1026, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=42229, PETRI_PLACES=438, PETRI_TRANSITIONS=1319} [2023-08-30 13:10:39,047 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 399 predicate places. [2023-08-30 13:10:39,047 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 1319 transitions, 42229 flow [2023-08-30 13:10:39,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:39,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:10:39,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:10:39,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-30 13:10:39,047 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:10:39,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:10:39,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1328779596, now seen corresponding path program 3 times [2023-08-30 13:10:39,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:10:39,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235464705] [2023-08-30 13:10:39,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:10:39,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:10:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:10:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:10:39,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:10:39,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235464705] [2023-08-30 13:10:39,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235464705] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:10:39,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:10:39,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:10:39,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209177321] [2023-08-30 13:10:39,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:10:39,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:10:39,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:10:39,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:10:39,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:10:39,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:10:39,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1319 transitions, 42229 flow. Second operand has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:39,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:10:39,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:10:39,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:10:51,366 INFO L130 PetriNetUnfolder]: 13401/24196 cut-off events. [2023-08-30 13:10:51,366 INFO L131 PetriNetUnfolder]: For 1159368/1159368 co-relation queries the response was YES. [2023-08-30 13:10:51,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240893 conditions, 24196 events. 13401/24196 cut-off events. For 1159368/1159368 co-relation queries the response was YES. Maximal size of possible extension queue 1593. Compared 218656 event pairs, 6917 based on Foata normal form. 44/23376 useless extension candidates. Maximal degree in co-relation 239119. Up to 21688 conditions per place. [2023-08-30 13:10:51,717 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 1278 selfloop transitions, 156 changer transitions 68/1503 dead transitions. [2023-08-30 13:10:51,718 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1503 transitions, 49666 flow [2023-08-30 13:10:51,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:10:51,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:10:51,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1765 transitions. [2023-08-30 13:10:51,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47395273899033297 [2023-08-30 13:10:51,719 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1765 transitions. [2023-08-30 13:10:51,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1765 transitions. [2023-08-30 13:10:51,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:10:51,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1765 transitions. [2023-08-30 13:10:51,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 126.07142857142857) internal successors, (1765), 14 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:51,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:51,724 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:10:51,724 INFO L175 Difference]: Start difference. First operand has 438 places, 1319 transitions, 42229 flow. Second operand 14 states and 1765 transitions. [2023-08-30 13:10:51,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1503 transitions, 49666 flow [2023-08-30 13:11:01,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 1503 transitions, 49264 flow, removed 43 selfloop flow, removed 5 redundant places. [2023-08-30 13:11:01,235 INFO L231 Difference]: Finished difference. Result has 450 places, 1334 transitions, 42863 flow [2023-08-30 13:11:01,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=41878, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=42863, PETRI_PLACES=450, PETRI_TRANSITIONS=1334} [2023-08-30 13:11:01,236 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 411 predicate places. [2023-08-30 13:11:01,237 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 1334 transitions, 42863 flow [2023-08-30 13:11:01,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:01,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:11:01,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:11:01,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-30 13:11:01,237 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:11:01,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:11:01,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1930860520, now seen corresponding path program 2 times [2023-08-30 13:11:01,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:11:01,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540504559] [2023-08-30 13:11:01,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:11:01,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:11:01,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:11:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:11:01,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:11:01,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540504559] [2023-08-30 13:11:01,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540504559] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:11:01,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:11:01,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:11:01,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075589290] [2023-08-30 13:11:01,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:11:01,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:11:01,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:11:01,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:11:01,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:11:01,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:11:01,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 1334 transitions, 42863 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:01,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:11:01,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:11:01,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:11:14,302 INFO L130 PetriNetUnfolder]: 14063/25732 cut-off events. [2023-08-30 13:11:14,302 INFO L131 PetriNetUnfolder]: For 1292758/1292758 co-relation queries the response was YES. [2023-08-30 13:11:14,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256399 conditions, 25732 events. 14063/25732 cut-off events. For 1292758/1292758 co-relation queries the response was YES. Maximal size of possible extension queue 1732. Compared 239471 event pairs, 4651 based on Foata normal form. 254/25115 useless extension candidates. Maximal degree in co-relation 253874. Up to 12613 conditions per place. [2023-08-30 13:11:14,704 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 1080 selfloop transitions, 430 changer transitions 26/1537 dead transitions. [2023-08-30 13:11:14,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 1537 transitions, 51111 flow [2023-08-30 13:11:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:11:14,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:11:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1328 transitions. [2023-08-30 13:11:14,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4992481203007519 [2023-08-30 13:11:14,706 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1328 transitions. [2023-08-30 13:11:14,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1328 transitions. [2023-08-30 13:11:14,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:11:14,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1328 transitions. [2023-08-30 13:11:14,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.8) internal successors, (1328), 10 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:14,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:14,709 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:14,710 INFO L175 Difference]: Start difference. First operand has 450 places, 1334 transitions, 42863 flow. Second operand 10 states and 1328 transitions. [2023-08-30 13:11:14,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 1537 transitions, 51111 flow [2023-08-30 13:11:27,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 1537 transitions, 50962 flow, removed 48 selfloop flow, removed 6 redundant places. [2023-08-30 13:11:27,683 INFO L231 Difference]: Finished difference. Result has 457 places, 1395 transitions, 46242 flow [2023-08-30 13:11:27,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=42457, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=350, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=46242, PETRI_PLACES=457, PETRI_TRANSITIONS=1395} [2023-08-30 13:11:27,684 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 418 predicate places. [2023-08-30 13:11:27,684 INFO L495 AbstractCegarLoop]: Abstraction has has 457 places, 1395 transitions, 46242 flow [2023-08-30 13:11:27,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:27,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:11:27,684 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:11:27,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-30 13:11:27,685 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:11:27,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:11:27,685 INFO L85 PathProgramCache]: Analyzing trace with hash 936413681, now seen corresponding path program 6 times [2023-08-30 13:11:27,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:11:27,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342198690] [2023-08-30 13:11:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:11:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:11:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:11:28,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:11:28,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:11:28,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342198690] [2023-08-30 13:11:28,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342198690] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:11:28,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:11:28,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:11:28,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625011552] [2023-08-30 13:11:28,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:11:28,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:11:28,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:11:28,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:11:28,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:11:28,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-08-30 13:11:28,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 1395 transitions, 46242 flow. Second operand has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 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) [2023-08-30 13:11:28,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:11:28,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-08-30 13:11:28,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:11:42,170 INFO L130 PetriNetUnfolder]: 13874/25433 cut-off events. [2023-08-30 13:11:42,170 INFO L131 PetriNetUnfolder]: For 1321016/1321016 co-relation queries the response was YES. [2023-08-30 13:11:42,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261012 conditions, 25433 events. 13874/25433 cut-off events. For 1321016/1321016 co-relation queries the response was YES. Maximal size of possible extension queue 1700. Compared 236271 event pairs, 7048 based on Foata normal form. 8/24576 useless extension candidates. Maximal degree in co-relation 258927. Up to 24014 conditions per place. [2023-08-30 13:11:42,554 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1073 selfloop transitions, 400 changer transitions 14/1488 dead transitions. [2023-08-30 13:11:42,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 1488 transitions, 50913 flow [2023-08-30 13:11:42,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 13:11:42,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 13:11:42,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2693 transitions. [2023-08-30 13:11:42,557 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601845522898155 [2023-08-30 13:11:42,558 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2693 transitions. [2023-08-30 13:11:42,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2693 transitions. [2023-08-30 13:11:42,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:11:42,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2693 transitions. [2023-08-30 13:11:42,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 122.4090909090909) internal successors, (2693), 22 states have internal predecessors, (2693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:42,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:42,564 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:42,564 INFO L175 Difference]: Start difference. First operand has 457 places, 1395 transitions, 46242 flow. Second operand 22 states and 2693 transitions. [2023-08-30 13:11:42,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 1488 transitions, 50913 flow [2023-08-30 13:11:53,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 1488 transitions, 50733 flow, removed 46 selfloop flow, removed 7 redundant places. [2023-08-30 13:11:54,002 INFO L231 Difference]: Finished difference. Result has 472 places, 1393 transitions, 46856 flow [2023-08-30 13:11:54,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=45983, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=399, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=46856, PETRI_PLACES=472, PETRI_TRANSITIONS=1393} [2023-08-30 13:11:54,004 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 433 predicate places. [2023-08-30 13:11:54,004 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 1393 transitions, 46856 flow [2023-08-30 13:11:54,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 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) [2023-08-30 13:11:54,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:11:54,005 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:11:54,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-30 13:11:54,005 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:11:54,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:11:54,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1707372397, now seen corresponding path program 6 times [2023-08-30 13:11:54,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:11:54,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538525379] [2023-08-30 13:11:54,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:11:54,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:11:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:11:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:11:54,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:11:54,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538525379] [2023-08-30 13:11:54,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538525379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:11:54,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:11:54,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:11:54,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36858521] [2023-08-30 13:11:54,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:11:54,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:11:54,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:11:54,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:11:54,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:11:54,639 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:11:54,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 1393 transitions, 46856 flow. Second operand has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:11:54,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:11:54,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:11:54,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:12:09,062 INFO L130 PetriNetUnfolder]: 14134/25908 cut-off events. [2023-08-30 13:12:09,062 INFO L131 PetriNetUnfolder]: For 1326718/1326718 co-relation queries the response was YES. [2023-08-30 13:12:09,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265060 conditions, 25908 events. 14134/25908 cut-off events. For 1326718/1326718 co-relation queries the response was YES. Maximal size of possible extension queue 1761. Compared 240651 event pairs, 3867 based on Foata normal form. 22/25051 useless extension candidates. Maximal degree in co-relation 263315. Up to 10348 conditions per place. [2023-08-30 13:12:09,536 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 797 selfloop transitions, 760 changer transitions 20/1578 dead transitions. [2023-08-30 13:12:09,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1578 transitions, 54252 flow [2023-08-30 13:12:09,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:12:09,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:12:09,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1830 transitions. [2023-08-30 13:12:09,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49140708915145004 [2023-08-30 13:12:09,538 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1830 transitions. [2023-08-30 13:12:09,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1830 transitions. [2023-08-30 13:12:09,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:12:09,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1830 transitions. [2023-08-30 13:12:09,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.71428571428572) internal successors, (1830), 14 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:09,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:09,542 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:09,542 INFO L175 Difference]: Start difference. First operand has 472 places, 1393 transitions, 46856 flow. Second operand 14 states and 1830 transitions. [2023-08-30 13:12:09,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1578 transitions, 54252 flow [2023-08-30 13:12:22,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 1578 transitions, 53498 flow, removed 18 selfloop flow, removed 19 redundant places. [2023-08-30 13:12:22,512 INFO L231 Difference]: Finished difference. Result has 468 places, 1407 transitions, 48885 flow [2023-08-30 13:12:22,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=45987, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=743, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=48885, PETRI_PLACES=468, PETRI_TRANSITIONS=1407} [2023-08-30 13:12:22,513 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 429 predicate places. [2023-08-30 13:12:22,514 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 1407 transitions, 48885 flow [2023-08-30 13:12:22,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:22,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:12:22,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:12:22,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-30 13:12:22,515 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:12:22,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:12:22,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1707372398, now seen corresponding path program 4 times [2023-08-30 13:12:22,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:12:22,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034341546] [2023-08-30 13:12:22,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:12:22,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:12:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:12:23,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:12:23,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:12:23,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034341546] [2023-08-30 13:12:23,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034341546] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:12:23,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:12:23,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:12:23,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159888728] [2023-08-30 13:12:23,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:12:23,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:12:23,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:12:23,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:12:23,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:12:23,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:12:23,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 1407 transitions, 48885 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:23,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:12:23,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:12:23,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:12:37,368 INFO L130 PetriNetUnfolder]: 13992/25661 cut-off events. [2023-08-30 13:12:37,368 INFO L131 PetriNetUnfolder]: For 1421814/1421814 co-relation queries the response was YES. [2023-08-30 13:12:37,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270133 conditions, 25661 events. 13992/25661 cut-off events. For 1421814/1421814 co-relation queries the response was YES. Maximal size of possible extension queue 1709. Compared 239237 event pairs, 7146 based on Foata normal form. 2/24796 useless extension candidates. Maximal degree in co-relation 268098. Up to 24647 conditions per place. [2023-08-30 13:12:37,974 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 1223 selfloop transitions, 240 changer transitions 6/1470 dead transitions. [2023-08-30 13:12:37,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1470 transitions, 53086 flow [2023-08-30 13:12:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:12:37,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:12:37,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1976 transitions. [2023-08-30 13:12:37,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2023-08-30 13:12:37,976 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1976 transitions. [2023-08-30 13:12:37,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1976 transitions. [2023-08-30 13:12:37,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:12:37,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1976 transitions. [2023-08-30 13:12:37,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.5) internal successors, (1976), 16 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:37,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:37,979 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:37,979 INFO L175 Difference]: Start difference. First operand has 468 places, 1407 transitions, 48885 flow. Second operand 16 states and 1976 transitions. [2023-08-30 13:12:37,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1470 transitions, 53086 flow [2023-08-30 13:12:50,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 1470 transitions, 52355 flow, removed 62 selfloop flow, removed 9 redundant places. [2023-08-30 13:12:50,964 INFO L231 Difference]: Finished difference. Result has 475 places, 1407 transitions, 48688 flow [2023-08-30 13:12:50,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=48170, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=48688, PETRI_PLACES=475, PETRI_TRANSITIONS=1407} [2023-08-30 13:12:50,965 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 436 predicate places. [2023-08-30 13:12:50,966 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 1407 transitions, 48688 flow [2023-08-30 13:12:50,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:50,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:12:50,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:12:50,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-30 13:12:50,966 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:12:50,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:12:50,966 INFO L85 PathProgramCache]: Analyzing trace with hash -469325302, now seen corresponding path program 5 times [2023-08-30 13:12:50,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:12:50,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068658173] [2023-08-30 13:12:50,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:12:50,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:12:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:12:51,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:12:51,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:12:51,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068658173] [2023-08-30 13:12:51,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068658173] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:12:51,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:12:51,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:12:51,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500536144] [2023-08-30 13:12:51,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:12:51,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:12:51,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:12:51,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:12:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:12:51,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:12:51,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 1407 transitions, 48688 flow. Second operand has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:12:51,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:12:51,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:12:51,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:13:06,653 INFO L130 PetriNetUnfolder]: 15078/27863 cut-off events. [2023-08-30 13:13:06,654 INFO L131 PetriNetUnfolder]: For 1459578/1459578 co-relation queries the response was YES. [2023-08-30 13:13:07,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286396 conditions, 27863 events. 15078/27863 cut-off events. For 1459578/1459578 co-relation queries the response was YES. Maximal size of possible extension queue 1877. Compared 264710 event pairs, 8094 based on Foata normal form. 65/26991 useless extension candidates. Maximal degree in co-relation 284646. Up to 24513 conditions per place. [2023-08-30 13:13:07,183 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1376 selfloop transitions, 155 changer transitions 59/1591 dead transitions. [2023-08-30 13:13:07,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1591 transitions, 56720 flow [2023-08-30 13:13:07,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:13:07,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:13:07,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1523 transitions. [2023-08-30 13:13:07,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47713032581453635 [2023-08-30 13:13:07,186 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1523 transitions. [2023-08-30 13:13:07,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1523 transitions. [2023-08-30 13:13:07,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:13:07,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1523 transitions. [2023-08-30 13:13:07,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 126.91666666666667) internal successors, (1523), 12 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:07,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:07,190 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:07,190 INFO L175 Difference]: Start difference. First operand has 475 places, 1407 transitions, 48688 flow. Second operand 12 states and 1523 transitions. [2023-08-30 13:13:07,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1591 transitions, 56720 flow [2023-08-30 13:13:20,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 1591 transitions, 56376 flow, removed 1 selfloop flow, removed 14 redundant places. [2023-08-30 13:13:20,985 INFO L231 Difference]: Finished difference. Result has 476 places, 1434 transitions, 49826 flow [2023-08-30 13:13:20,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=48360, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=49826, PETRI_PLACES=476, PETRI_TRANSITIONS=1434} [2023-08-30 13:13:20,986 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 437 predicate places. [2023-08-30 13:13:20,986 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 1434 transitions, 49826 flow [2023-08-30 13:13:20,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:20,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:13:20,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:13:20,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-30 13:13:20,987 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:13:20,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:13:20,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1863309998, now seen corresponding path program 6 times [2023-08-30 13:13:20,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:13:20,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591955985] [2023-08-30 13:13:20,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:13:20,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:13:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:13:21,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:13:21,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:13:21,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591955985] [2023-08-30 13:13:21,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591955985] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:13:21,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:13:21,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:13:21,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222844545] [2023-08-30 13:13:21,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:13:21,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:13:21,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:13:21,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:13:21,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:13:21,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:13:21,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 1434 transitions, 49826 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:21,860 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:13:21,860 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:13:21,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:13:38,192 INFO L130 PetriNetUnfolder]: 15692/29156 cut-off events. [2023-08-30 13:13:38,192 INFO L131 PetriNetUnfolder]: For 1539660/1539660 co-relation queries the response was YES. [2023-08-30 13:13:38,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299147 conditions, 29156 events. 15692/29156 cut-off events. For 1539660/1539660 co-relation queries the response was YES. Maximal size of possible extension queue 1937. Compared 280853 event pairs, 8590 based on Foata normal form. 44/28208 useless extension candidates. Maximal degree in co-relation 297117. Up to 26325 conditions per place. [2023-08-30 13:13:38,781 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1363 selfloop transitions, 179 changer transitions 39/1582 dead transitions. [2023-08-30 13:13:38,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1582 transitions, 56923 flow [2023-08-30 13:13:38,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:13:38,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:13:38,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2002 transitions. [2023-08-30 13:13:38,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47039473684210525 [2023-08-30 13:13:38,782 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2002 transitions. [2023-08-30 13:13:38,782 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2002 transitions. [2023-08-30 13:13:38,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:13:38,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2002 transitions. [2023-08-30 13:13:38,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 125.125) internal successors, (2002), 16 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:38,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:38,786 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:38,787 INFO L175 Difference]: Start difference. First operand has 476 places, 1434 transitions, 49826 flow. Second operand 16 states and 2002 transitions. [2023-08-30 13:13:38,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 1582 transitions, 56923 flow [2023-08-30 13:13:53,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1582 transitions, 56822 flow, removed 20 selfloop flow, removed 5 redundant places. [2023-08-30 13:13:53,995 INFO L231 Difference]: Finished difference. Result has 490 places, 1456 transitions, 51095 flow [2023-08-30 13:13:53,995 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=49716, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=51095, PETRI_PLACES=490, PETRI_TRANSITIONS=1456} [2023-08-30 13:13:53,996 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 451 predicate places. [2023-08-30 13:13:53,996 INFO L495 AbstractCegarLoop]: Abstraction has has 490 places, 1456 transitions, 51095 flow [2023-08-30 13:13:53,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:53,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:13:53,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:13:53,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-30 13:13:53,996 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:13:53,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:13:53,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2121491208, now seen corresponding path program 3 times [2023-08-30 13:13:53,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:13:53,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703364469] [2023-08-30 13:13:53,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:13:53,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:13:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:13:54,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:13:54,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:13:54,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703364469] [2023-08-30 13:13:54,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703364469] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:13:54,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:13:54,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:13:54,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364308847] [2023-08-30 13:13:54,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:13:54,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:13:54,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:13:54,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:13:54,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:13:54,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:13:54,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 1456 transitions, 51095 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:13:54,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:13:54,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:13:54,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:14:11,739 INFO L130 PetriNetUnfolder]: 16357/30639 cut-off events. [2023-08-30 13:14:11,739 INFO L131 PetriNetUnfolder]: For 1679030/1679030 co-relation queries the response was YES. [2023-08-30 13:14:12,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315072 conditions, 30639 events. 16357/30639 cut-off events. For 1679030/1679030 co-relation queries the response was YES. Maximal size of possible extension queue 2058. Compared 299893 event pairs, 6920 based on Foata normal form. 264/29882 useless extension candidates. Maximal degree in co-relation 312983. Up to 12987 conditions per place. [2023-08-30 13:14:12,490 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 1396 selfloop transitions, 244 changer transitions 10/1651 dead transitions. [2023-08-30 13:14:12,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1651 transitions, 58998 flow [2023-08-30 13:14:12,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:14:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:14:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1320 transitions. [2023-08-30 13:14:12,492 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49624060150375937 [2023-08-30 13:14:12,492 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1320 transitions. [2023-08-30 13:14:12,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1320 transitions. [2023-08-30 13:14:12,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:14:12,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1320 transitions. [2023-08-30 13:14:12,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:14:12,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:14:12,495 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:14:12,495 INFO L175 Difference]: Start difference. First operand has 490 places, 1456 transitions, 51095 flow. Second operand 10 states and 1320 transitions. [2023-08-30 13:14:12,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1651 transitions, 58998 flow [2023-08-30 13:14:30,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 1651 transitions, 58855 flow, removed 39 selfloop flow, removed 7 redundant places. [2023-08-30 13:14:30,857 INFO L231 Difference]: Finished difference. Result has 496 places, 1525 transitions, 53891 flow [2023-08-30 13:14:30,858 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=50930, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=53891, PETRI_PLACES=496, PETRI_TRANSITIONS=1525} [2023-08-30 13:14:30,858 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 457 predicate places. [2023-08-30 13:14:30,858 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 1525 transitions, 53891 flow [2023-08-30 13:14:30,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:14:30,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:14:30,859 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:14:30,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-30 13:14:30,859 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:14:30,859 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:14:30,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1947565397, now seen corresponding path program 3 times [2023-08-30 13:14:30,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:14:30,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943260398] [2023-08-30 13:14:30,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:14:30,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:14:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:14:31,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:14:31,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:14:31,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943260398] [2023-08-30 13:14:31,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943260398] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:14:31,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:14:31,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:14:31,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238217732] [2023-08-30 13:14:31,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:14:31,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:14:31,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:14:31,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:14:31,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:14:31,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:14:31,363 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 1525 transitions, 53891 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:14:31,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:14:31,363 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:14:31,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:14:49,359 INFO L130 PetriNetUnfolder]: 16357/30647 cut-off events. [2023-08-30 13:14:49,359 INFO L131 PetriNetUnfolder]: For 1733136/1733136 co-relation queries the response was YES. [2023-08-30 13:14:50,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321768 conditions, 30647 events. 16357/30647 cut-off events. For 1733136/1733136 co-relation queries the response was YES. Maximal size of possible extension queue 2085. Compared 300080 event pairs, 6895 based on Foata normal form. 20/29654 useless extension candidates. Maximal degree in co-relation 319558. Up to 12987 conditions per place. [2023-08-30 13:14:50,257 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 1273 selfloop transitions, 328 changer transitions 0/1602 dead transitions. [2023-08-30 13:14:50,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 1602 transitions, 58621 flow [2023-08-30 13:14:50,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:14:50,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:14:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1165 transitions. [2023-08-30 13:14:50,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48663324979114453 [2023-08-30 13:14:50,266 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1165 transitions. [2023-08-30 13:14:50,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1165 transitions. [2023-08-30 13:14:50,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:14:50,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1165 transitions. [2023-08-30 13:14:50,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.44444444444446) internal successors, (1165), 9 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:14:50,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:14:50,269 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:14:50,269 INFO L175 Difference]: Start difference. First operand has 496 places, 1525 transitions, 53891 flow. Second operand 9 states and 1165 transitions. [2023-08-30 13:14:50,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 1602 transitions, 58621 flow [2023-08-30 13:15:08,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1602 transitions, 58345 flow, removed 107 selfloop flow, removed 5 redundant places. [2023-08-30 13:15:08,781 INFO L231 Difference]: Finished difference. Result has 502 places, 1545 transitions, 55288 flow [2023-08-30 13:15:08,782 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=53552, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=305, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=55288, PETRI_PLACES=502, PETRI_TRANSITIONS=1545} [2023-08-30 13:15:08,782 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 463 predicate places. [2023-08-30 13:15:08,782 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1545 transitions, 55288 flow [2023-08-30 13:15:08,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:15:08,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:15:08,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:15:08,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-30 13:15:08,783 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:15:08,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:15:08,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1463759126, now seen corresponding path program 4 times [2023-08-30 13:15:08,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:15:08,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505634231] [2023-08-30 13:15:08,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:15:08,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:15:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:15:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:15:09,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:15:09,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505634231] [2023-08-30 13:15:09,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505634231] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:15:09,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:15:09,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:15:09,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653636214] [2023-08-30 13:15:09,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:15:09,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:15:09,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:15:09,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:15:09,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:15:09,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 266 [2023-08-30 13:15:09,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1545 transitions, 55288 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:15:09,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:15:09,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 266 [2023-08-30 13:15:09,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:15:32,025 INFO L130 PetriNetUnfolder]: 18317/34588 cut-off events. [2023-08-30 13:15:32,025 INFO L131 PetriNetUnfolder]: For 1898836/1898836 co-relation queries the response was YES. [2023-08-30 13:15:32,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360770 conditions, 34588 events. 18317/34588 cut-off events. For 1898836/1898836 co-relation queries the response was YES. Maximal size of possible extension queue 2337. Compared 347142 event pairs, 10526 based on Foata normal form. 64/33479 useless extension candidates. Maximal degree in co-relation 358521. Up to 28230 conditions per place. [2023-08-30 13:15:33,004 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1608 selfloop transitions, 218 changer transitions 189/2016 dead transitions. [2023-08-30 13:15:33,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 2016 transitions, 73277 flow [2023-08-30 13:15:33,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:15:33,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:15:33,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2174 transitions. [2023-08-30 13:15:33,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4807607253427687 [2023-08-30 13:15:33,006 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2174 transitions. [2023-08-30 13:15:33,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2174 transitions. [2023-08-30 13:15:33,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:15:33,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2174 transitions. [2023-08-30 13:15:33,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 127.88235294117646) internal successors, (2174), 17 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:15:33,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:15:33,010 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:15:33,010 INFO L175 Difference]: Start difference. First operand has 502 places, 1545 transitions, 55288 flow. Second operand 17 states and 2174 transitions. [2023-08-30 13:15:33,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 2016 transitions, 73277 flow [2023-08-30 13:15:53,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 2016 transitions, 73008 flow, removed 16 selfloop flow, removed 5 redundant places. [2023-08-30 13:15:53,519 INFO L231 Difference]: Finished difference. Result has 520 places, 1592 transitions, 57452 flow [2023-08-30 13:15:53,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=55060, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=57452, PETRI_PLACES=520, PETRI_TRANSITIONS=1592} [2023-08-30 13:15:53,520 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 481 predicate places. [2023-08-30 13:15:53,520 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 1592 transitions, 57452 flow [2023-08-30 13:15:53,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:15:53,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:15:53,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:15:53,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-30 13:15:53,521 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:15:53,521 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:15:53,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1460944016, now seen corresponding path program 5 times [2023-08-30 13:15:53,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:15:53,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65726781] [2023-08-30 13:15:53,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:15:53,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:15:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:15:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:15:53,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:15:53,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65726781] [2023-08-30 13:15:53,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65726781] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:15:53,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:15:53,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:15:53,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546182908] [2023-08-30 13:15:53,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:15:53,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:15:53,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:15:53,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:15:53,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:15:54,231 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 13:15:54,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 1592 transitions, 57452 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:15:54,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:15:54,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 13:15:54,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:16:16,067 INFO L130 PetriNetUnfolder]: 17732/33506 cut-off events. [2023-08-30 13:16:16,067 INFO L131 PetriNetUnfolder]: For 1867010/1867010 co-relation queries the response was YES. [2023-08-30 13:16:16,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354385 conditions, 33506 events. 17732/33506 cut-off events. For 1867010/1867010 co-relation queries the response was YES. Maximal size of possible extension queue 2270. Compared 335395 event pairs, 10490 based on Foata normal form. 2/32374 useless extension candidates. Maximal degree in co-relation 352265. Up to 32545 conditions per place. [2023-08-30 13:16:16,943 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 1437 selfloop transitions, 238 changer transitions 9/1685 dead transitions. [2023-08-30 13:16:16,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 1685 transitions, 62833 flow [2023-08-30 13:16:16,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 13:16:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 13:16:16,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2696 transitions. [2023-08-30 13:16:16,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4606971975393028 [2023-08-30 13:16:16,945 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2696 transitions. [2023-08-30 13:16:16,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2696 transitions. [2023-08-30 13:16:16,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:16:16,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2696 transitions. [2023-08-30 13:16:16,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 122.54545454545455) internal successors, (2696), 22 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:16:16,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:16:16,950 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:16:16,950 INFO L175 Difference]: Start difference. First operand has 520 places, 1592 transitions, 57452 flow. Second operand 22 states and 2696 transitions. [2023-08-30 13:16:16,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 1685 transitions, 62833 flow [2023-08-30 13:16:37,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 1685 transitions, 62734 flow, removed 30 selfloop flow, removed 5 redundant places. [2023-08-30 13:16:37,710 INFO L231 Difference]: Finished difference. Result has 541 places, 1601 transitions, 58190 flow [2023-08-30 13:16:37,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=57353, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=58190, PETRI_PLACES=541, PETRI_TRANSITIONS=1601} [2023-08-30 13:16:37,711 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 502 predicate places. [2023-08-30 13:16:37,711 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 1601 transitions, 58190 flow [2023-08-30 13:16:37,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:16:37,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:16:37,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:16:37,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-30 13:16:37,712 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:16:37,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:16:37,712 INFO L85 PathProgramCache]: Analyzing trace with hash 836325516, now seen corresponding path program 2 times [2023-08-30 13:16:37,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:16:37,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657947113] [2023-08-30 13:16:37,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:16:37,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:16:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:16:37,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:16:37,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:16:37,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657947113] [2023-08-30 13:16:37,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657947113] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:16:37,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:16:37,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:16:37,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637714234] [2023-08-30 13:16:37,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:16:37,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:16:37,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:16:37,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:16:37,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:16:38,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:16:38,280 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 1601 transitions, 58190 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:16:38,280 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:16:38,280 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:16:38,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:16:59,007 INFO L130 PetriNetUnfolder]: 17737/33453 cut-off events. [2023-08-30 13:16:59,008 INFO L131 PetriNetUnfolder]: For 1915945/1915945 co-relation queries the response was YES. [2023-08-30 13:16:59,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353425 conditions, 33453 events. 17737/33453 cut-off events. For 1915945/1915945 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 334378 event pairs, 6090 based on Foata normal form. 40/32375 useless extension candidates. Maximal degree in co-relation 352911. Up to 23954 conditions per place. [2023-08-30 13:16:59,902 INFO L137 encePairwiseOnDemand]: 248/266 looper letters, 1010 selfloop transitions, 661 changer transitions 2/1674 dead transitions. [2023-08-30 13:16:59,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1674 transitions, 62892 flow [2023-08-30 13:16:59,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:16:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:16:59,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1786 transitions. [2023-08-30 13:16:59,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47959183673469385 [2023-08-30 13:16:59,904 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1786 transitions. [2023-08-30 13:16:59,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1786 transitions. [2023-08-30 13:16:59,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:16:59,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1786 transitions. [2023-08-30 13:16:59,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 127.57142857142857) internal successors, (1786), 14 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:16:59,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:16:59,907 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:16:59,907 INFO L175 Difference]: Start difference. First operand has 541 places, 1601 transitions, 58190 flow. Second operand 14 states and 1786 transitions. [2023-08-30 13:16:59,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1674 transitions, 62892 flow [2023-08-30 13:17:19,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 1674 transitions, 62523 flow, removed 131 selfloop flow, removed 9 redundant places. [2023-08-30 13:17:19,481 INFO L231 Difference]: Finished difference. Result has 550 places, 1632 transitions, 60873 flow [2023-08-30 13:17:19,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=57706, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=626, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=60873, PETRI_PLACES=550, PETRI_TRANSITIONS=1632} [2023-08-30 13:17:19,482 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 511 predicate places. [2023-08-30 13:17:19,482 INFO L495 AbstractCegarLoop]: Abstraction has has 550 places, 1632 transitions, 60873 flow [2023-08-30 13:17:19,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:17:19,482 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:17:19,482 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:17:19,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-30 13:17:19,482 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:17:19,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:17:19,483 INFO L85 PathProgramCache]: Analyzing trace with hash 838752815, now seen corresponding path program 3 times [2023-08-30 13:17:19,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:17:19,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096210456] [2023-08-30 13:17:19,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:17:19,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:17:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:17:19,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:17:19,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:17:19,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096210456] [2023-08-30 13:17:19,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096210456] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:17:19,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:17:19,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:17:19,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650411362] [2023-08-30 13:17:19,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:17:19,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:17:19,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:17:19,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:17:19,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:17:19,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:17:19,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 1632 transitions, 60873 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:17:19,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:17:19,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:17:19,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:17:40,873 INFO L130 PetriNetUnfolder]: 17813/33584 cut-off events. [2023-08-30 13:17:40,873 INFO L131 PetriNetUnfolder]: For 2018759/2018759 co-relation queries the response was YES. [2023-08-30 13:17:41,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364539 conditions, 33584 events. 17813/33584 cut-off events. For 2018759/2018759 co-relation queries the response was YES. Maximal size of possible extension queue 2242. Compared 335850 event pairs, 6175 based on Foata normal form. 44/32506 useless extension candidates. Maximal degree in co-relation 364048. Up to 24975 conditions per place. [2023-08-30 13:17:41,854 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 1070 selfloop transitions, 602 changer transitions 0/1673 dead transitions. [2023-08-30 13:17:41,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 1673 transitions, 65122 flow [2023-08-30 13:17:41,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:17:41,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:17:41,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1151 transitions. [2023-08-30 13:17:41,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48078529657477026 [2023-08-30 13:17:41,855 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1151 transitions. [2023-08-30 13:17:41,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1151 transitions. [2023-08-30 13:17:41,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:17:41,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1151 transitions. [2023-08-30 13:17:41,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 127.88888888888889) internal successors, (1151), 9 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:17:41,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:17:41,858 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:17:41,858 INFO L175 Difference]: Start difference. First operand has 550 places, 1632 transitions, 60873 flow. Second operand 9 states and 1151 transitions. [2023-08-30 13:17:41,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 1673 transitions, 65122 flow [2023-08-30 13:18:06,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 1673 transitions, 64992 flow, removed 55 selfloop flow, removed 4 redundant places. [2023-08-30 13:18:06,189 INFO L231 Difference]: Finished difference. Result has 557 places, 1653 transitions, 63388 flow [2023-08-30 13:18:06,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=60745, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=581, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1035, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=63388, PETRI_PLACES=557, PETRI_TRANSITIONS=1653} [2023-08-30 13:18:06,190 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 518 predicate places. [2023-08-30 13:18:06,191 INFO L495 AbstractCegarLoop]: Abstraction has has 557 places, 1653 transitions, 63388 flow [2023-08-30 13:18:06,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:18:06,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:18:06,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:18:06,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-30 13:18:06,191 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:18:06,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:18:06,191 INFO L85 PathProgramCache]: Analyzing trace with hash 839900435, now seen corresponding path program 4 times [2023-08-30 13:18:06,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:18:06,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11319569] [2023-08-30 13:18:06,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:18:06,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:18:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:18:06,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:18:06,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:18:06,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11319569] [2023-08-30 13:18:06,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11319569] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:18:06,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:18:06,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:18:06,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105163710] [2023-08-30 13:18:06,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:18:06,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:18:06,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:18:06,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:18:06,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:18:06,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 13:18:06,712 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 1653 transitions, 63388 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:18:06,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:18:06,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 13:18:06,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:18:28,154 INFO L130 PetriNetUnfolder]: 17804/33509 cut-off events. [2023-08-30 13:18:28,154 INFO L131 PetriNetUnfolder]: For 2170152/2170152 co-relation queries the response was YES. [2023-08-30 13:18:29,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372097 conditions, 33509 events. 17804/33509 cut-off events. For 2170152/2170152 co-relation queries the response was YES. Maximal size of possible extension queue 2223. Compared 334229 event pairs, 6345 based on Foata normal form. 40/32443 useless extension candidates. Maximal degree in co-relation 371603. Up to 24780 conditions per place. [2023-08-30 13:18:29,149 INFO L137 encePairwiseOnDemand]: 248/266 looper letters, 1075 selfloop transitions, 619 changer transitions 2/1697 dead transitions. [2023-08-30 13:18:29,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 1697 transitions, 67763 flow [2023-08-30 13:18:29,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:18:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:18:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1275 transitions. [2023-08-30 13:18:29,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4793233082706767 [2023-08-30 13:18:29,151 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1275 transitions. [2023-08-30 13:18:29,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1275 transitions. [2023-08-30 13:18:29,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:18:29,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1275 transitions. [2023-08-30 13:18:29,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 127.5) internal successors, (1275), 10 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:18:29,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:18:29,153 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:18:29,153 INFO L175 Difference]: Start difference. First operand has 557 places, 1653 transitions, 63388 flow. Second operand 10 states and 1275 transitions. [2023-08-30 13:18:29,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 1697 transitions, 67763 flow Killed by 15