./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations 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_2-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:05:57,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:05:57,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:05:57,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:05:57,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:05:57,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:05:57,527 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:05:57,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:05:57,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:05:57,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:05:57,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:05:57,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:05:57,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:05:57,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:05:57,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:05:57,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:05:57,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:05:57,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:05:57,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:05:57,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:05:57,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:05:57,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:05:57,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:05:57,569 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:05:57,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:05:57,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:05:57,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:05:57,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:05:57,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:05:57,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:05:57,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:05:57,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:05:57,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:05:57,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:05:57,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:05:57,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:05:57,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:05:57,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:05:57,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:05:57,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:05:57,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:05:57,594 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:05:57,627 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:05:57,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:05:57,628 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:05:57,629 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:05:57,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:05:57,630 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:05:57,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:05:57,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:05:57,631 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:05:57,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:05:57,632 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:05:57,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:05:57,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:05:57,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:05:57,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:05:57,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:05:57,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:05:57,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:05:57,633 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:05:57,633 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:05:57,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:05:57,634 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:05:57,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:05:57,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:05:57,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:05:57,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:05:57,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:05:57,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:05:57,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:05:57,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:05:57,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:05:57,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:05:57,636 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:05:57,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:05:57,636 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:05:57,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:05:57,637 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:05:57,637 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:05:57,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:05:57,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:05:57,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:05:57,988 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:05:57,988 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:05:57,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-08-30 13:05:59,090 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:05:59,400 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:05:59,400 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-08-30 13:05:59,426 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c317e0064/e4b923936d2743778603845ff7089372/FLAG2be57b7f0 [2023-08-30 13:05:59,450 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c317e0064/e4b923936d2743778603845ff7089372 [2023-08-30 13:05:59,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:05:59,455 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:05:59,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:05:59,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:05:59,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:05:59,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:05:59" (1/1) ... [2023-08-30 13:05:59,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64152270 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 13:05:59,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:05:59" (1/1) ... [2023-08-30 13:05:59,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:05:59,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:05:59,719 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:06:00,311 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2023-08-30 13:06:00,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:06:00,365 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:06:00,376 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:06:00,403 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i[75002,75015] [2023-08-30 13:06:00,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:06:00,536 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:00,536 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:00,536 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:00,542 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:06:00,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:00 WrapperNode [2023-08-30 13:06:00,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:06:00,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:00,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:06:00,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:06:00,550 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 13:06:00,594 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 13:06:00,632 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2023-08-30 13:06:00,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:00,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:06:00,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:06:00,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:06:00,643 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 13:06:00,643 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 13:06:00,661 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 13:06:00,662 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 13:06:00,671 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 13:06:00,686 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 13:06:00,689 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 13:06:00,692 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 13:06:00,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:06:00,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:06:00,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:06:00,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:06:00,698 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 13:06:00,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:06:00,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:06:00,742 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 13:06:00,769 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 13:06:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:06:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:06:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:06:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:06:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:06:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:06:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:06:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:06:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-30 13:06:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-30 13:06:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:06:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:06:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:06:00,785 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 13:06:01,090 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:06:01,092 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:06:01,310 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:06:01,332 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:06:01,348 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:06:01,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:01 BoogieIcfgContainer [2023-08-30 13:06:01,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:06:01,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:06:01,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:06:01,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:06:01,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:05:59" (1/3) ... [2023-08-30 13:06:01,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e9aeb9 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 13:06:01,357 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 13:06:01,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e9aeb9 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 13:06:01,358 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 13:06:01,359 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-08-30 13:06:01,367 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:06:01,397 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:06:01,397 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 13:06:01,398 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:06:01,534 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:06:01,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 147 transitions, 310 flow [2023-08-30 13:06:01,674 INFO L130 PetriNetUnfolder]: 8/183 cut-off events. [2023-08-30 13:06:01,674 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:06:01,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 183 events. 8/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 304 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2023-08-30 13:06:01,679 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 147 transitions, 310 flow [2023-08-30 13:06:01,686 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 117 transitions, 243 flow [2023-08-30 13:06:01,690 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:06:01,704 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 117 transitions, 243 flow [2023-08-30 13:06:01,708 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 117 transitions, 243 flow [2023-08-30 13:06:01,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 117 transitions, 243 flow [2023-08-30 13:06:01,749 INFO L130 PetriNetUnfolder]: 2/117 cut-off events. [2023-08-30 13:06:01,750 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:06:01,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 117 events. 2/117 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 121 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-30 13:06:01,754 INFO L119 LiptonReduction]: Number of co-enabled transitions 2520 [2023-08-30 13:06:07,324 INFO L134 LiptonReduction]: Checked pairs total: 5449 [2023-08-30 13:06:07,324 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-08-30 13:06:07,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:06:07,341 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;@2a536862, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:06:07,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 13:06:07,344 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-30 13:06:07,345 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:06:07,345 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:07,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 13:06:07,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:07,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:07,350 INFO L85 PathProgramCache]: Analyzing trace with hash 14850815, now seen corresponding path program 1 times [2023-08-30 13:06:07,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:07,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940342027] [2023-08-30 13:06:07,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:07,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:08,327 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 13:06:08,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:08,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940342027] [2023-08-30 13:06:08,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940342027] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:08,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:08,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:06:08,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389314555] [2023-08-30 13:06:08,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:08,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:06:08,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:08,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:06:08,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:06:08,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 257 [2023-08-30 13:06:08,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 55 flow. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:08,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 257 [2023-08-30 13:06:08,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:08,603 INFO L130 PetriNetUnfolder]: 108/209 cut-off events. [2023-08-30 13:06:08,603 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-08-30 13:06:08,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 209 events. 108/209 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 726 event pairs, 81 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 360. Up to 206 conditions per place. [2023-08-30 13:06:08,606 INFO L137 encePairwiseOnDemand]: 249/257 looper letters, 17 selfloop transitions, 6 changer transitions 0/23 dead transitions. [2023-08-30 13:06:08,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 101 flow [2023-08-30 13:06:08,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:06:08,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:06:08,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2023-08-30 13:06:08,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754863813229572 [2023-08-30 13:06:08,622 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2023-08-30 13:06:08,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2023-08-30 13:06:08,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:08,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2023-08-30 13:06:08,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,639 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,641 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 55 flow. Second operand 5 states and 611 transitions. [2023-08-30 13:06:08,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 101 flow [2023-08-30 13:06:08,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:08,646 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 76 flow [2023-08-30 13:06:08,648 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2023-08-30 13:06:08,652 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2023-08-30 13:06:08,653 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 76 flow [2023-08-30 13:06:08,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:08,656 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:06:08,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:06:08,657 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 13:06:08,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:08,665 INFO L85 PathProgramCache]: Analyzing trace with hash 460376987, now seen corresponding path program 1 times [2023-08-30 13:06:08,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:08,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156404528] [2023-08-30 13:06:08,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:08,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:09,311 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 13:06:09,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:09,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156404528] [2023-08-30 13:06:09,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156404528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:09,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:09,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:09,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601504437] [2023-08-30 13:06:09,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:09,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:09,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:09,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:09,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:09,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 13:06:09,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:09,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 13:06:09,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:09,688 INFO L130 PetriNetUnfolder]: 100/195 cut-off events. [2023-08-30 13:06:09,688 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-30 13:06:09,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 195 events. 100/195 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 653 event pairs, 34 based on Foata normal form. 3/158 useless extension candidates. Maximal degree in co-relation 368. Up to 177 conditions per place. [2023-08-30 13:06:09,690 INFO L137 encePairwiseOnDemand]: 250/257 looper letters, 23 selfloop transitions, 8 changer transitions 0/31 dead transitions. [2023-08-30 13:06:09,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 164 flow [2023-08-30 13:06:09,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:06:09,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:06:09,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2023-08-30 13:06:09,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754863813229572 [2023-08-30 13:06:09,693 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2023-08-30 13:06:09,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2023-08-30 13:06:09,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:09,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2023-08-30 13:06:09,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,698 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,699 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 76 flow. Second operand 5 states and 611 transitions. [2023-08-30 13:06:09,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 164 flow [2023-08-30 13:06:09,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:09,700 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 121 flow [2023-08-30 13:06:09,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-08-30 13:06:09,701 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2023-08-30 13:06:09,701 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 121 flow [2023-08-30 13:06:09,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:09,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:06:09,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:06:09,703 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 13:06:09,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:09,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1386552957, now seen corresponding path program 1 times [2023-08-30 13:06:09,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:09,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440326216] [2023-08-30 13:06:09,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:09,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:10,056 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 13:06:10,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:10,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440326216] [2023-08-30 13:06:10,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440326216] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:10,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:10,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:10,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839389553] [2023-08-30 13:06:10,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:10,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:10,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:10,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:10,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:10,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 13:06:10,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:10,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 13:06:10,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:10,288 INFO L130 PetriNetUnfolder]: 94/185 cut-off events. [2023-08-30 13:06:10,289 INFO L131 PetriNetUnfolder]: For 104/104 co-relation queries the response was YES. [2023-08-30 13:06:10,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 185 events. 94/185 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 612 event pairs, 71 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 419. Up to 175 conditions per place. [2023-08-30 13:06:10,290 INFO L137 encePairwiseOnDemand]: 250/257 looper letters, 25 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-08-30 13:06:10,291 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 213 flow [2023-08-30 13:06:10,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:06:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:06:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 610 transitions. [2023-08-30 13:06:10,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47470817120622566 [2023-08-30 13:06:10,293 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 610 transitions. [2023-08-30 13:06:10,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 610 transitions. [2023-08-30 13:06:10,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:10,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 610 transitions. [2023-08-30 13:06:10,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,298 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,299 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 121 flow. Second operand 5 states and 610 transitions. [2023-08-30 13:06:10,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 213 flow [2023-08-30 13:06:10,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 201 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:10,301 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 162 flow [2023-08-30 13:06:10,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2023-08-30 13:06:10,302 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2023-08-30 13:06:10,302 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 162 flow [2023-08-30 13:06:10,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:10,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:10,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:06:10,304 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:10,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:10,304 INFO L85 PathProgramCache]: Analyzing trace with hash 40623604, now seen corresponding path program 1 times [2023-08-30 13:06:10,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:10,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365680669] [2023-08-30 13:06:10,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:10,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:10,918 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 13:06:10,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:10,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365680669] [2023-08-30 13:06:10,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365680669] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:10,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:10,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:10,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090595015] [2023-08-30 13:06:10,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:10,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:10,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:10,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:10,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:11,083 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 13:06:11,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 162 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:11,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 13:06:11,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:11,251 INFO L130 PetriNetUnfolder]: 124/235 cut-off events. [2023-08-30 13:06:11,251 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-08-30 13:06:11,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 235 events. 124/235 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 844 event pairs, 26 based on Foata normal form. 8/216 useless extension candidates. Maximal degree in co-relation 357. Up to 175 conditions per place. [2023-08-30 13:06:11,255 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 29 selfloop transitions, 15 changer transitions 0/44 dead transitions. [2023-08-30 13:06:11,256 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 44 transitions, 298 flow [2023-08-30 13:06:11,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:11,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 736 transitions. [2023-08-30 13:06:11,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4773022049286641 [2023-08-30 13:06:11,260 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 736 transitions. [2023-08-30 13:06:11,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 736 transitions. [2023-08-30 13:06:11,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:11,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 736 transitions. [2023-08-30 13:06:11,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.66666666666667) internal successors, (736), 6 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,267 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,267 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 162 flow. Second operand 6 states and 736 transitions. [2023-08-30 13:06:11,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 44 transitions, 298 flow [2023-08-30 13:06:11,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 288 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:11,272 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 231 flow [2023-08-30 13:06:11,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-08-30 13:06:11,274 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 15 predicate places. [2023-08-30 13:06:11,274 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 231 flow [2023-08-30 13:06:11,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:11,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:11,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:06:11,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:11,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:11,277 INFO L85 PathProgramCache]: Analyzing trace with hash 40623617, now seen corresponding path program 1 times [2023-08-30 13:06:11,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:11,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923990688] [2023-08-30 13:06:11,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:11,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:11,783 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 13:06:11,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:11,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923990688] [2023-08-30 13:06:11,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923990688] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:11,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:11,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:11,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943159118] [2023-08-30 13:06:11,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:11,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:11,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:11,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:11,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:11,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 13:06:11,925 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 231 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:11,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 13:06:11,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:12,123 INFO L130 PetriNetUnfolder]: 112/215 cut-off events. [2023-08-30 13:06:12,124 INFO L131 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2023-08-30 13:06:12,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 215 events. 112/215 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 744 event pairs, 27 based on Foata normal form. 4/196 useless extension candidates. Maximal degree in co-relation 372. Up to 177 conditions per place. [2023-08-30 13:06:12,125 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 29 selfloop transitions, 14 changer transitions 0/43 dead transitions. [2023-08-30 13:06:12,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 333 flow [2023-08-30 13:06:12,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:12,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 852 transitions. [2023-08-30 13:06:12,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4735964424680378 [2023-08-30 13:06:12,128 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 852 transitions. [2023-08-30 13:06:12,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 852 transitions. [2023-08-30 13:06:12,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:12,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 852 transitions. [2023-08-30 13:06:12,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.71428571428571) internal successors, (852), 7 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,133 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,133 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 231 flow. Second operand 7 states and 852 transitions. [2023-08-30 13:06:12,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 333 flow [2023-08-30 13:06:12,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 43 transitions, 318 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-30 13:06:12,136 INFO L231 Difference]: Finished difference. Result has 49 places, 35 transitions, 251 flow [2023-08-30 13:06:12,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2023-08-30 13:06:12,137 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2023-08-30 13:06:12,137 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 251 flow [2023-08-30 13:06:12,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:12,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:12,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:06:12,138 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:12,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:12,139 INFO L85 PathProgramCache]: Analyzing trace with hash 33470987, now seen corresponding path program 2 times [2023-08-30 13:06:12,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:12,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193102507] [2023-08-30 13:06:12,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:12,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:12,647 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 13:06:12,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:12,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193102507] [2023-08-30 13:06:12,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193102507] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:12,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:12,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:12,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366147276] [2023-08-30 13:06:12,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:12,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:12,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:12,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:12,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:12,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 13:06:12,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 251 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:12,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 13:06:12,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:13,080 INFO L130 PetriNetUnfolder]: 144/269 cut-off events. [2023-08-30 13:06:13,081 INFO L131 PetriNetUnfolder]: For 381/381 co-relation queries the response was YES. [2023-08-30 13:06:13,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 269 events. 144/269 cut-off events. For 381/381 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 990 event pairs, 35 based on Foata normal form. 8/250 useless extension candidates. Maximal degree in co-relation 574. Up to 114 conditions per place. [2023-08-30 13:06:13,083 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 29 selfloop transitions, 26 changer transitions 4/59 dead transitions. [2023-08-30 13:06:13,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 499 flow [2023-08-30 13:06:13,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:13,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:13,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1096 transitions. [2023-08-30 13:06:13,086 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4738434932987462 [2023-08-30 13:06:13,086 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1096 transitions. [2023-08-30 13:06:13,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1096 transitions. [2023-08-30 13:06:13,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:13,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1096 transitions. [2023-08-30 13:06:13,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 121.77777777777777) internal successors, (1096), 9 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,093 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,093 INFO L175 Difference]: Start difference. First operand has 49 places, 35 transitions, 251 flow. Second operand 9 states and 1096 transitions. [2023-08-30 13:06:13,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 499 flow [2023-08-30 13:06:13,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 59 transitions, 447 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:13,096 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 330 flow [2023-08-30 13:06:13,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=330, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2023-08-30 13:06:13,097 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 23 predicate places. [2023-08-30 13:06:13,097 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 330 flow [2023-08-30 13:06:13,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:13,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:13,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:06:13,098 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 13:06:13,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:13,098 INFO L85 PathProgramCache]: Analyzing trace with hash 33473777, now seen corresponding path program 3 times [2023-08-30 13:06:13,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:13,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306050093] [2023-08-30 13:06:13,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:13,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:13,588 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 13:06:13,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:13,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306050093] [2023-08-30 13:06:13,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306050093] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:13,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:13,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:13,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133271119] [2023-08-30 13:06:13,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:13,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:13,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:13,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:13,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:13,852 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 257 [2023-08-30 13:06:13,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 330 flow. Second operand has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:13,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 257 [2023-08-30 13:06:13,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:14,151 INFO L130 PetriNetUnfolder]: 137/259 cut-off events. [2023-08-30 13:06:14,151 INFO L131 PetriNetUnfolder]: For 391/391 co-relation queries the response was YES. [2023-08-30 13:06:14,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 259 events. 137/259 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 971 event pairs, 34 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 632. Up to 107 conditions per place. [2023-08-30 13:06:14,153 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 31 selfloop transitions, 26 changer transitions 2/59 dead transitions. [2023-08-30 13:06:14,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 506 flow [2023-08-30 13:06:14,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:14,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:14,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1111 transitions. [2023-08-30 13:06:14,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4803285776048422 [2023-08-30 13:06:14,157 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1111 transitions. [2023-08-30 13:06:14,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1111 transitions. [2023-08-30 13:06:14,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:14,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1111 transitions. [2023-08-30 13:06:14,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 123.44444444444444) internal successors, (1111), 9 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,164 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,164 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 330 flow. Second operand 9 states and 1111 transitions. [2023-08-30 13:06:14,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 506 flow [2023-08-30 13:06:14,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 59 transitions, 462 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:14,167 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 388 flow [2023-08-30 13:06:14,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=388, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2023-08-30 13:06:14,168 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 27 predicate places. [2023-08-30 13:06:14,168 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 388 flow [2023-08-30 13:06:14,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:14,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:14,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 13:06:14,170 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:14,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:14,170 INFO L85 PathProgramCache]: Analyzing trace with hash 33473764, now seen corresponding path program 2 times [2023-08-30 13:06:14,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:14,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752219569] [2023-08-30 13:06:14,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:14,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:14,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:14,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:14,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752219569] [2023-08-30 13:06:14,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752219569] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:14,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:14,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:14,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874713262] [2023-08-30 13:06:14,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:14,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:14,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:14,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:14,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:14,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 13:06:14,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 388 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:14,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 13:06:14,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:15,093 INFO L130 PetriNetUnfolder]: 119/229 cut-off events. [2023-08-30 13:06:15,093 INFO L131 PetriNetUnfolder]: For 635/635 co-relation queries the response was YES. [2023-08-30 13:06:15,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 229 events. 119/229 cut-off events. For 635/635 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 818 event pairs, 15 based on Foata normal form. 6/226 useless extension candidates. Maximal degree in co-relation 570. Up to 106 conditions per place. [2023-08-30 13:06:15,096 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 29 selfloop transitions, 25 changer transitions 2/56 dead transitions. [2023-08-30 13:06:15,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 530 flow [2023-08-30 13:06:15,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:15,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 854 transitions. [2023-08-30 13:06:15,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47470817120622566 [2023-08-30 13:06:15,099 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 854 transitions. [2023-08-30 13:06:15,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 854 transitions. [2023-08-30 13:06:15,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:15,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 854 transitions. [2023-08-30 13:06:15,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,105 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,105 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 388 flow. Second operand 7 states and 854 transitions. [2023-08-30 13:06:15,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 530 flow [2023-08-30 13:06:15,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 515 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:15,109 INFO L231 Difference]: Finished difference. Result has 60 places, 45 transitions, 439 flow [2023-08-30 13:06:15,109 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=439, PETRI_PLACES=60, PETRI_TRANSITIONS=45} [2023-08-30 13:06:15,110 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2023-08-30 13:06:15,110 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 45 transitions, 439 flow [2023-08-30 13:06:15,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:15,111 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:15,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 13:06:15,111 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:15,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:15,112 INFO L85 PathProgramCache]: Analyzing trace with hash 33470974, now seen corresponding path program 3 times [2023-08-30 13:06:15,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:15,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360905181] [2023-08-30 13:06:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:15,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:15,538 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 13:06:15,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:15,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360905181] [2023-08-30 13:06:15,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360905181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:15,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:15,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:15,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579976968] [2023-08-30 13:06:15,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:15,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:15,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:15,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:15,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:15,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-08-30 13:06:15,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 45 transitions, 439 flow. Second operand has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:15,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-08-30 13:06:15,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:15,892 INFO L130 PetriNetUnfolder]: 107/209 cut-off events. [2023-08-30 13:06:15,892 INFO L131 PetriNetUnfolder]: For 846/846 co-relation queries the response was YES. [2023-08-30 13:06:15,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 209 events. 107/209 cut-off events. For 846/846 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 722 event pairs, 15 based on Foata normal form. 4/208 useless extension candidates. Maximal degree in co-relation 632. Up to 102 conditions per place. [2023-08-30 13:06:15,894 INFO L137 encePairwiseOnDemand]: 249/257 looper letters, 25 selfloop transitions, 24 changer transitions 2/51 dead transitions. [2023-08-30 13:06:15,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 51 transitions, 553 flow [2023-08-30 13:06:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:15,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2023-08-30 13:06:15,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4662775616083009 [2023-08-30 13:06:15,897 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 719 transitions. [2023-08-30 13:06:15,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 719 transitions. [2023-08-30 13:06:15,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:15,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 719 transitions. [2023-08-30 13:06:15,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,902 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,903 INFO L175 Difference]: Start difference. First operand has 60 places, 45 transitions, 439 flow. Second operand 6 states and 719 transitions. [2023-08-30 13:06:15,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 51 transitions, 553 flow [2023-08-30 13:06:15,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 51 transitions, 514 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:15,908 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 465 flow [2023-08-30 13:06:15,908 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=465, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2023-08-30 13:06:15,909 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 34 predicate places. [2023-08-30 13:06:15,909 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 465 flow [2023-08-30 13:06:15,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:15,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:15,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 13:06:15,910 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:15,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:15,911 INFO L85 PathProgramCache]: Analyzing trace with hash 33473778, now seen corresponding path program 1 times [2023-08-30 13:06:15,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:15,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104250883] [2023-08-30 13:06:15,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:15,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:16,344 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 13:06:16,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:16,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104250883] [2023-08-30 13:06:16,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104250883] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:16,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:16,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:16,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125765817] [2023-08-30 13:06:16,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:16,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:16,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:16,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:16,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:16,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-08-30 13:06:16,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 465 flow. Second operand has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:16,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-08-30 13:06:16,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:16,827 INFO L130 PetriNetUnfolder]: 102/198 cut-off events. [2023-08-30 13:06:16,827 INFO L131 PetriNetUnfolder]: For 1021/1021 co-relation queries the response was YES. [2023-08-30 13:06:16,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 198 events. 102/198 cut-off events. For 1021/1021 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 672 event pairs, 18 based on Foata normal form. 4/197 useless extension candidates. Maximal degree in co-relation 661. Up to 99 conditions per place. [2023-08-30 13:06:16,830 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 26 selfloop transitions, 26 changer transitions 2/54 dead transitions. [2023-08-30 13:06:16,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 54 transitions, 583 flow [2023-08-30 13:06:16,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:16,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 955 transitions. [2023-08-30 13:06:16,833 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46449416342412453 [2023-08-30 13:06:16,833 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 955 transitions. [2023-08-30 13:06:16,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 955 transitions. [2023-08-30 13:06:16,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:16,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 955 transitions. [2023-08-30 13:06:16,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 119.375) internal successors, (955), 8 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 257.0) internal successors, (2313), 9 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,840 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 257.0) internal successors, (2313), 9 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,840 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 465 flow. Second operand 8 states and 955 transitions. [2023-08-30 13:06:16,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 54 transitions, 583 flow [2023-08-30 13:06:16,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 487 flow, removed 5 selfloop flow, removed 8 redundant places. [2023-08-30 13:06:16,846 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 411 flow [2023-08-30 13:06:16,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=411, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2023-08-30 13:06:16,847 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2023-08-30 13:06:16,847 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 411 flow [2023-08-30 13:06:16,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:16,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:16,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 13:06:16,848 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:16,851 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:16,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1637625285, now seen corresponding path program 1 times [2023-08-30 13:06:16,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:16,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532271994] [2023-08-30 13:06:16,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:16,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:17,377 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 13:06:17,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:17,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532271994] [2023-08-30 13:06:17,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532271994] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:17,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:17,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:17,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566589285] [2023-08-30 13:06:17,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:17,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:17,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:17,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:17,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:17,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-08-30 13:06:17,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 411 flow. Second operand has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:17,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-08-30 13:06:17,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:17,923 INFO L130 PetriNetUnfolder]: 130/271 cut-off events. [2023-08-30 13:06:17,923 INFO L131 PetriNetUnfolder]: For 780/780 co-relation queries the response was YES. [2023-08-30 13:06:17,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 271 events. 130/271 cut-off events. For 780/780 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1130 event pairs, 59 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 790. Up to 185 conditions per place. [2023-08-30 13:06:17,925 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 55 selfloop transitions, 17 changer transitions 3/75 dead transitions. [2023-08-30 13:06:17,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 75 transitions, 710 flow [2023-08-30 13:06:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:17,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1306 transitions. [2023-08-30 13:06:17,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46197382384152813 [2023-08-30 13:06:17,929 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1306 transitions. [2023-08-30 13:06:17,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1306 transitions. [2023-08-30 13:06:17,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:17,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1306 transitions. [2023-08-30 13:06:17,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 118.72727272727273) internal successors, (1306), 11 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,937 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,937 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 411 flow. Second operand 11 states and 1306 transitions. [2023-08-30 13:06:17,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 75 transitions, 710 flow [2023-08-30 13:06:17,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 649 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:17,941 INFO L231 Difference]: Finished difference. Result has 72 places, 55 transitions, 506 flow [2023-08-30 13:06:17,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=506, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2023-08-30 13:06:17,942 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 43 predicate places. [2023-08-30 13:06:17,942 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 506 flow [2023-08-30 13:06:17,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:17,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:17,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 13:06:17,943 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 13:06:17,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:17,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1637625284, now seen corresponding path program 1 times [2023-08-30 13:06:17,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:17,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16205613] [2023-08-30 13:06:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:17,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:18,211 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 13:06:18,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:18,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16205613] [2023-08-30 13:06:18,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16205613] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:18,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:18,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:18,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816819733] [2023-08-30 13:06:18,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:18,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:18,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:18,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:18,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:18,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 13:06:18,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 506 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:18,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 13:06:18,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:18,608 INFO L130 PetriNetUnfolder]: 145/331 cut-off events. [2023-08-30 13:06:18,608 INFO L131 PetriNetUnfolder]: For 903/903 co-relation queries the response was YES. [2023-08-30 13:06:18,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1321 conditions, 331 events. 145/331 cut-off events. For 903/903 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1585 event pairs, 13 based on Foata normal form. 8/339 useless extension candidates. Maximal degree in co-relation 1056. Up to 102 conditions per place. [2023-08-30 13:06:18,611 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 54 selfloop transitions, 29 changer transitions 3/86 dead transitions. [2023-08-30 13:06:18,611 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 86 transitions, 800 flow [2023-08-30 13:06:18,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:18,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:18,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1129 transitions. [2023-08-30 13:06:18,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48811067877215736 [2023-08-30 13:06:18,615 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1129 transitions. [2023-08-30 13:06:18,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1129 transitions. [2023-08-30 13:06:18,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:18,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1129 transitions. [2023-08-30 13:06:18,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 125.44444444444444) internal successors, (1129), 9 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,621 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,622 INFO L175 Difference]: Start difference. First operand has 72 places, 55 transitions, 506 flow. Second operand 9 states and 1129 transitions. [2023-08-30 13:06:18,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 86 transitions, 800 flow [2023-08-30 13:06:18,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 86 transitions, 787 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:18,627 INFO L231 Difference]: Finished difference. Result has 80 places, 60 transitions, 620 flow [2023-08-30 13:06:18,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=80, PETRI_TRANSITIONS=60} [2023-08-30 13:06:18,627 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 51 predicate places. [2023-08-30 13:06:18,628 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 60 transitions, 620 flow [2023-08-30 13:06:18,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:18,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:18,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 13:06:18,629 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:18,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:18,629 INFO L85 PathProgramCache]: Analyzing trace with hash 363149565, now seen corresponding path program 2 times [2023-08-30 13:06:18,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:18,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601442298] [2023-08-30 13:06:18,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:18,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:19,206 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 13:06:19,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:19,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601442298] [2023-08-30 13:06:19,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601442298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:19,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:19,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:19,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638344925] [2023-08-30 13:06:19,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:19,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:19,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:19,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:19,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:19,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:06:19,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 60 transitions, 620 flow. Second operand has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:19,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:19,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:06:19,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:20,374 INFO L130 PetriNetUnfolder]: 217/489 cut-off events. [2023-08-30 13:06:20,374 INFO L131 PetriNetUnfolder]: For 2316/2316 co-relation queries the response was YES. [2023-08-30 13:06:20,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2127 conditions, 489 events. 217/489 cut-off events. For 2316/2316 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2661 event pairs, 38 based on Foata normal form. 15/504 useless extension candidates. Maximal degree in co-relation 1640. Up to 201 conditions per place. [2023-08-30 13:06:20,378 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 65 selfloop transitions, 69 changer transitions 11/145 dead transitions. [2023-08-30 13:06:20,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 145 transitions, 1504 flow [2023-08-30 13:06:20,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-30 13:06:20,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-30 13:06:20,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2432 transitions. [2023-08-30 13:06:20,385 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4506207152121549 [2023-08-30 13:06:20,386 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2432 transitions. [2023-08-30 13:06:20,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2432 transitions. [2023-08-30 13:06:20,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:20,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2432 transitions. [2023-08-30 13:06:20,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 115.80952380952381) internal successors, (2432), 21 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,413 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,413 INFO L175 Difference]: Start difference. First operand has 80 places, 60 transitions, 620 flow. Second operand 21 states and 2432 transitions. [2023-08-30 13:06:20,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 145 transitions, 1504 flow [2023-08-30 13:06:20,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 145 transitions, 1456 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-08-30 13:06:20,428 INFO L231 Difference]: Finished difference. Result has 100 places, 99 transitions, 1174 flow [2023-08-30 13:06:20,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1174, PETRI_PLACES=100, PETRI_TRANSITIONS=99} [2023-08-30 13:06:20,429 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 71 predicate places. [2023-08-30 13:06:20,429 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 99 transitions, 1174 flow [2023-08-30 13:06:20,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:20,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:20,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 13:06:20,430 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 13:06:20,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash 381323248, now seen corresponding path program 2 times [2023-08-30 13:06:20,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:20,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209583879] [2023-08-30 13:06:20,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:20,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:20,818 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 13:06:20,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:20,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209583879] [2023-08-30 13:06:20,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209583879] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:20,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:20,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:20,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256082261] [2023-08-30 13:06:20,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:20,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:20,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:20,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:20,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:20,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 13:06:20,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 1174 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:20,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 13:06:20,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:21,278 INFO L130 PetriNetUnfolder]: 197/458 cut-off events. [2023-08-30 13:06:21,279 INFO L131 PetriNetUnfolder]: For 2856/2856 co-relation queries the response was YES. [2023-08-30 13:06:21,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2200 conditions, 458 events. 197/458 cut-off events. For 2856/2856 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2509 event pairs, 57 based on Foata normal form. 9/467 useless extension candidates. Maximal degree in co-relation 1900. Up to 174 conditions per place. [2023-08-30 13:06:21,283 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 68 selfloop transitions, 45 changer transitions 4/117 dead transitions. [2023-08-30 13:06:21,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 117 transitions, 1433 flow [2023-08-30 13:06:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:21,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:21,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1248 transitions. [2023-08-30 13:06:21,285 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4856031128404669 [2023-08-30 13:06:21,285 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1248 transitions. [2023-08-30 13:06:21,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1248 transitions. [2023-08-30 13:06:21,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:21,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1248 transitions. [2023-08-30 13:06:21,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.8) internal successors, (1248), 10 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,291 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,291 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 1174 flow. Second operand 10 states and 1248 transitions. [2023-08-30 13:06:21,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 117 transitions, 1433 flow [2023-08-30 13:06:21,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 117 transitions, 1273 flow, removed 47 selfloop flow, removed 8 redundant places. [2023-08-30 13:06:21,303 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 1066 flow [2023-08-30 13:06:21,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1066, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2023-08-30 13:06:21,304 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 73 predicate places. [2023-08-30 13:06:21,304 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 1066 flow [2023-08-30 13:06:21,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:21,305 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:21,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 13:06:21,305 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 13:06:21,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash 364630678, now seen corresponding path program 3 times [2023-08-30 13:06:21,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:21,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637037531] [2023-08-30 13:06:21,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:21,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:21,614 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 13:06:21,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:21,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637037531] [2023-08-30 13:06:21,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637037531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:21,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:21,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:21,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240285209] [2023-08-30 13:06:21,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:21,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:21,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:21,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:21,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:21,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 13:06:21,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 1066 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:21,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 13:06:21,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:22,110 INFO L130 PetriNetUnfolder]: 192/445 cut-off events. [2023-08-30 13:06:22,110 INFO L131 PetriNetUnfolder]: For 2447/2447 co-relation queries the response was YES. [2023-08-30 13:06:22,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 445 events. 192/445 cut-off events. For 2447/2447 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2384 event pairs, 42 based on Foata normal form. 6/451 useless extension candidates. Maximal degree in co-relation 1863. Up to 204 conditions per place. [2023-08-30 13:06:22,114 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 56 selfloop transitions, 56 changer transitions 3/115 dead transitions. [2023-08-30 13:06:22,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 115 transitions, 1390 flow [2023-08-30 13:06:22,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:22,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:22,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1483 transitions. [2023-08-30 13:06:22,117 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4808690012970169 [2023-08-30 13:06:22,117 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1483 transitions. [2023-08-30 13:06:22,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1483 transitions. [2023-08-30 13:06:22,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:22,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1483 transitions. [2023-08-30 13:06:22,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 123.58333333333333) internal successors, (1483), 12 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,124 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,124 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 1066 flow. Second operand 12 states and 1483 transitions. [2023-08-30 13:06:22,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 115 transitions, 1390 flow [2023-08-30 13:06:22,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 115 transitions, 1323 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:22,135 INFO L231 Difference]: Finished difference. Result has 108 places, 96 transitions, 1236 flow [2023-08-30 13:06:22,136 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1236, PETRI_PLACES=108, PETRI_TRANSITIONS=96} [2023-08-30 13:06:22,136 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 79 predicate places. [2023-08-30 13:06:22,136 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 96 transitions, 1236 flow [2023-08-30 13:06:22,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:22,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:22,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 13:06:22,137 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:22,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash 384551727, now seen corresponding path program 1 times [2023-08-30 13:06:22,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:22,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843499792] [2023-08-30 13:06:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:22,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:22,677 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 13:06:22,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:22,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843499792] [2023-08-30 13:06:22,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843499792] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:22,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:22,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:22,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624805158] [2023-08-30 13:06:22,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:22,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:22,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:22,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:22,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:22,948 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 13:06:22,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 96 transitions, 1236 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:22,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 13:06:22,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:23,311 INFO L130 PetriNetUnfolder]: 189/453 cut-off events. [2023-08-30 13:06:23,311 INFO L131 PetriNetUnfolder]: For 3083/3083 co-relation queries the response was YES. [2023-08-30 13:06:23,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2292 conditions, 453 events. 189/453 cut-off events. For 3083/3083 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2512 event pairs, 58 based on Foata normal form. 2/455 useless extension candidates. Maximal degree in co-relation 2053. Up to 318 conditions per place. [2023-08-30 13:06:23,315 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 64 selfloop transitions, 36 changer transitions 18/118 dead transitions. [2023-08-30 13:06:23,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 118 transitions, 1646 flow [2023-08-30 13:06:23,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:23,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:23,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1296 transitions. [2023-08-30 13:06:23,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45843650512911216 [2023-08-30 13:06:23,318 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1296 transitions. [2023-08-30 13:06:23,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1296 transitions. [2023-08-30 13:06:23,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:23,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1296 transitions. [2023-08-30 13:06:23,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.81818181818181) internal successors, (1296), 11 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,327 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,327 INFO L175 Difference]: Start difference. First operand has 108 places, 96 transitions, 1236 flow. Second operand 11 states and 1296 transitions. [2023-08-30 13:06:23,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 118 transitions, 1646 flow [2023-08-30 13:06:23,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 118 transitions, 1566 flow, removed 13 selfloop flow, removed 9 redundant places. [2023-08-30 13:06:23,342 INFO L231 Difference]: Finished difference. Result has 110 places, 93 transitions, 1202 flow [2023-08-30 13:06:23,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1202, PETRI_PLACES=110, PETRI_TRANSITIONS=93} [2023-08-30 13:06:23,344 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 81 predicate places. [2023-08-30 13:06:23,344 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 93 transitions, 1202 flow [2023-08-30 13:06:23,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:23,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:23,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 13:06:23,345 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:23,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:23,345 INFO L85 PathProgramCache]: Analyzing trace with hash 364630679, now seen corresponding path program 3 times [2023-08-30 13:06:23,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:23,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099545508] [2023-08-30 13:06:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:23,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:24,030 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 13:06:24,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:24,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099545508] [2023-08-30 13:06:24,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099545508] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:24,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:24,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:24,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952091818] [2023-08-30 13:06:24,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:24,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:24,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:24,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:24,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:24,269 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:06:24,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 93 transitions, 1202 flow. Second operand has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:24,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:06:24,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:24,733 INFO L130 PetriNetUnfolder]: 166/416 cut-off events. [2023-08-30 13:06:24,733 INFO L131 PetriNetUnfolder]: For 2868/2868 co-relation queries the response was YES. [2023-08-30 13:06:24,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2126 conditions, 416 events. 166/416 cut-off events. For 2868/2868 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2301 event pairs, 28 based on Foata normal form. 9/425 useless extension candidates. Maximal degree in co-relation 1988. Up to 121 conditions per place. [2023-08-30 13:06:24,737 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 51 selfloop transitions, 66 changer transitions 4/121 dead transitions. [2023-08-30 13:06:24,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 121 transitions, 1590 flow [2023-08-30 13:06:24,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:06:24,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:06:24,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1843 transitions. [2023-08-30 13:06:24,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4482003891050584 [2023-08-30 13:06:24,740 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1843 transitions. [2023-08-30 13:06:24,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1843 transitions. [2023-08-30 13:06:24,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:24,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1843 transitions. [2023-08-30 13:06:24,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 115.1875) internal successors, (1843), 16 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,747 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,748 INFO L175 Difference]: Start difference. First operand has 110 places, 93 transitions, 1202 flow. Second operand 16 states and 1843 transitions. [2023-08-30 13:06:24,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 121 transitions, 1590 flow [2023-08-30 13:06:24,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 121 transitions, 1474 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:24,759 INFO L231 Difference]: Finished difference. Result has 118 places, 98 transitions, 1346 flow [2023-08-30 13:06:24,760 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1346, PETRI_PLACES=118, PETRI_TRANSITIONS=98} [2023-08-30 13:06:24,760 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 89 predicate places. [2023-08-30 13:06:24,760 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 98 transitions, 1346 flow [2023-08-30 13:06:24,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:24,761 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:24,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 13:06:24,761 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:24,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:24,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1625384625, now seen corresponding path program 4 times [2023-08-30 13:06:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:24,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001641915] [2023-08-30 13:06:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:24,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:25,381 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 13:06:25,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:25,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001641915] [2023-08-30 13:06:25,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001641915] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:25,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:25,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:25,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202221908] [2023-08-30 13:06:25,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:25,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:25,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:25,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:25,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:25,651 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 13:06:25,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 98 transitions, 1346 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:25,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:25,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 13:06:25,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:26,191 INFO L130 PetriNetUnfolder]: 164/409 cut-off events. [2023-08-30 13:06:26,192 INFO L131 PetriNetUnfolder]: For 2981/2981 co-relation queries the response was YES. [2023-08-30 13:06:26,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 409 events. 164/409 cut-off events. For 2981/2981 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2253 event pairs, 18 based on Foata normal form. 3/412 useless extension candidates. Maximal degree in co-relation 2054. Up to 136 conditions per place. [2023-08-30 13:06:26,195 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 46 selfloop transitions, 69 changer transitions 4/119 dead transitions. [2023-08-30 13:06:26,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 119 transitions, 1682 flow [2023-08-30 13:06:26,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:06:26,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:06:26,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1868 transitions. [2023-08-30 13:06:26,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45428015564202334 [2023-08-30 13:06:26,198 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1868 transitions. [2023-08-30 13:06:26,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1868 transitions. [2023-08-30 13:06:26,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:26,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1868 transitions. [2023-08-30 13:06:26,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 116.75) internal successors, (1868), 16 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:26,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:26,205 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:26,205 INFO L175 Difference]: Start difference. First operand has 118 places, 98 transitions, 1346 flow. Second operand 16 states and 1868 transitions. [2023-08-30 13:06:26,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 119 transitions, 1682 flow [2023-08-30 13:06:26,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 119 transitions, 1635 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:26,219 INFO L231 Difference]: Finished difference. Result has 130 places, 100 transitions, 1533 flow [2023-08-30 13:06:26,220 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1291, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1533, PETRI_PLACES=130, PETRI_TRANSITIONS=100} [2023-08-30 13:06:26,220 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 101 predicate places. [2023-08-30 13:06:26,220 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 100 transitions, 1533 flow [2023-08-30 13:06:26,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:26,221 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:26,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:26,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 13:06:26,221 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 13:06:26,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:26,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1625384624, now seen corresponding path program 4 times [2023-08-30 13:06:26,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:26,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30778985] [2023-08-30 13:06:26,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:26,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:26,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:26,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30778985] [2023-08-30 13:06:26,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30778985] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:26,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:26,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:26,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697025895] [2023-08-30 13:06:26,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:26,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:26,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:26,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:26,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:27,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-08-30 13:06:27,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 100 transitions, 1533 flow. Second operand has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:27,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-08-30 13:06:27,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:27,610 INFO L130 PetriNetUnfolder]: 159/395 cut-off events. [2023-08-30 13:06:27,611 INFO L131 PetriNetUnfolder]: For 3812/3812 co-relation queries the response was YES. [2023-08-30 13:06:27,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 395 events. 159/395 cut-off events. For 3812/3812 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2152 event pairs, 20 based on Foata normal form. 11/406 useless extension candidates. Maximal degree in co-relation 2131. Up to 208 conditions per place. [2023-08-30 13:06:27,614 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 49 selfloop transitions, 53 changer transitions 2/104 dead transitions. [2023-08-30 13:06:27,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 104 transitions, 1715 flow [2023-08-30 13:06:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:27,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1296 transitions. [2023-08-30 13:06:27,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45843650512911216 [2023-08-30 13:06:27,617 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1296 transitions. [2023-08-30 13:06:27,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1296 transitions. [2023-08-30 13:06:27,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:27,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1296 transitions. [2023-08-30 13:06:27,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.81818181818181) internal successors, (1296), 11 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,622 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,622 INFO L175 Difference]: Start difference. First operand has 130 places, 100 transitions, 1533 flow. Second operand 11 states and 1296 transitions. [2023-08-30 13:06:27,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 104 transitions, 1715 flow [2023-08-30 13:06:27,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 104 transitions, 1585 flow, removed 7 selfloop flow, removed 13 redundant places. [2023-08-30 13:06:27,639 INFO L231 Difference]: Finished difference. Result has 127 places, 95 transitions, 1484 flow [2023-08-30 13:06:27,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1484, PETRI_PLACES=127, PETRI_TRANSITIONS=95} [2023-08-30 13:06:27,640 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 98 predicate places. [2023-08-30 13:06:27,640 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 95 transitions, 1484 flow [2023-08-30 13:06:27,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:27,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:27,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 13:06:27,641 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 13:06:27,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:27,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2103478471, now seen corresponding path program 5 times [2023-08-30 13:06:27,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:27,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274711995] [2023-08-30 13:06:27,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:27,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:28,162 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 13:06:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274711995] [2023-08-30 13:06:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274711995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:28,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:28,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:28,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970252487] [2023-08-30 13:06:28,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:28,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:28,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:28,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:28,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 13:06:28,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 95 transitions, 1484 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:28,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 13:06:28,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:28,962 INFO L130 PetriNetUnfolder]: 163/415 cut-off events. [2023-08-30 13:06:28,962 INFO L131 PetriNetUnfolder]: For 3981/3981 co-relation queries the response was YES. [2023-08-30 13:06:28,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 415 events. 163/415 cut-off events. For 3981/3981 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2312 event pairs, 37 based on Foata normal form. 3/418 useless extension candidates. Maximal degree in co-relation 2197. Up to 272 conditions per place. [2023-08-30 13:06:28,966 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 65 selfloop transitions, 47 changer transitions 7/119 dead transitions. [2023-08-30 13:06:28,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 119 transitions, 1835 flow [2023-08-30 13:06:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:28,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1531 transitions. [2023-08-30 13:06:28,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4582460341215205 [2023-08-30 13:06:28,969 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1531 transitions. [2023-08-30 13:06:28,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1531 transitions. [2023-08-30 13:06:28,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:28,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1531 transitions. [2023-08-30 13:06:28,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.76923076923077) internal successors, (1531), 13 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,975 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,975 INFO L175 Difference]: Start difference. First operand has 127 places, 95 transitions, 1484 flow. Second operand 13 states and 1531 transitions. [2023-08-30 13:06:28,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 119 transitions, 1835 flow [2023-08-30 13:06:28,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 119 transitions, 1756 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-30 13:06:28,990 INFO L231 Difference]: Finished difference. Result has 133 places, 98 transitions, 1545 flow [2023-08-30 13:06:28,990 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1406, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1545, PETRI_PLACES=133, PETRI_TRANSITIONS=98} [2023-08-30 13:06:28,991 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 104 predicate places. [2023-08-30 13:06:28,991 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 98 transitions, 1545 flow [2023-08-30 13:06:28,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:28,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:28,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 13:06:28,992 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:28,992 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:28,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2097868228, now seen corresponding path program 1 times [2023-08-30 13:06:28,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:28,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855811525] [2023-08-30 13:06:28,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:28,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:29,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:29,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:29,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855811525] [2023-08-30 13:06:29,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855811525] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:29,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:29,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:29,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351153730] [2023-08-30 13:06:29,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:29,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:29,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:29,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:29,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:29,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 13:06:29,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 98 transitions, 1545 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:29,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:29,388 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 13:06:29,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:29,674 INFO L130 PetriNetUnfolder]: 163/419 cut-off events. [2023-08-30 13:06:29,674 INFO L131 PetriNetUnfolder]: For 3744/3744 co-relation queries the response was YES. [2023-08-30 13:06:29,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 419 events. 163/419 cut-off events. For 3744/3744 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2362 event pairs, 29 based on Foata normal form. 2/421 useless extension candidates. Maximal degree in co-relation 2325. Up to 155 conditions per place. [2023-08-30 13:06:29,678 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 45 selfloop transitions, 70 changer transitions 4/119 dead transitions. [2023-08-30 13:06:29,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 119 transitions, 1883 flow [2023-08-30 13:06:29,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:29,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:29,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1246 transitions. [2023-08-30 13:06:29,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4848249027237354 [2023-08-30 13:06:29,680 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1246 transitions. [2023-08-30 13:06:29,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1246 transitions. [2023-08-30 13:06:29,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:29,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1246 transitions. [2023-08-30 13:06:29,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.6) internal successors, (1246), 10 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:29,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:29,685 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:29,685 INFO L175 Difference]: Start difference. First operand has 133 places, 98 transitions, 1545 flow. Second operand 10 states and 1246 transitions. [2023-08-30 13:06:29,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 119 transitions, 1883 flow [2023-08-30 13:06:29,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 119 transitions, 1774 flow, removed 4 selfloop flow, removed 9 redundant places. [2023-08-30 13:06:29,700 INFO L231 Difference]: Finished difference. Result has 135 places, 101 transitions, 1629 flow [2023-08-30 13:06:29,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1629, PETRI_PLACES=135, PETRI_TRANSITIONS=101} [2023-08-30 13:06:29,701 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 106 predicate places. [2023-08-30 13:06:29,701 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 101 transitions, 1629 flow [2023-08-30 13:06:29,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:29,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:29,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:29,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 13:06:29,702 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:29,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash 2097868229, now seen corresponding path program 2 times [2023-08-30 13:06:29,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:29,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783291763] [2023-08-30 13:06:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:29,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:30,180 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 13:06:30,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:30,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783291763] [2023-08-30 13:06:30,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783291763] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:30,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:30,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:30,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752426649] [2023-08-30 13:06:30,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:30,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:30,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:30,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:30,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:30,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 13:06:30,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 101 transitions, 1629 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:30,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:30,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 13:06:30,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:31,073 INFO L130 PetriNetUnfolder]: 163/443 cut-off events. [2023-08-30 13:06:31,074 INFO L131 PetriNetUnfolder]: For 4131/4131 co-relation queries the response was YES. [2023-08-30 13:06:31,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 443 events. 163/443 cut-off events. For 4131/4131 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2651 event pairs, 53 based on Foata normal form. 6/449 useless extension candidates. Maximal degree in co-relation 2534. Up to 276 conditions per place. [2023-08-30 13:06:31,078 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 64 selfloop transitions, 47 changer transitions 24/135 dead transitions. [2023-08-30 13:06:31,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 135 transitions, 2141 flow [2023-08-30 13:06:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:06:31,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:06:31,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1876 transitions. [2023-08-30 13:06:31,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45622568093385213 [2023-08-30 13:06:31,081 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1876 transitions. [2023-08-30 13:06:31,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1876 transitions. [2023-08-30 13:06:31,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:31,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1876 transitions. [2023-08-30 13:06:31,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 117.25) internal successors, (1876), 16 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,089 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,089 INFO L175 Difference]: Start difference. First operand has 135 places, 101 transitions, 1629 flow. Second operand 16 states and 1876 transitions. [2023-08-30 13:06:31,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 135 transitions, 2141 flow [2023-08-30 13:06:31,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 135 transitions, 1967 flow, removed 16 selfloop flow, removed 10 redundant places. [2023-08-30 13:06:31,107 INFO L231 Difference]: Finished difference. Result has 140 places, 99 transitions, 1518 flow [2023-08-30 13:06:31,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1439, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1518, PETRI_PLACES=140, PETRI_TRANSITIONS=99} [2023-08-30 13:06:31,107 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 111 predicate places. [2023-08-30 13:06:31,108 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 99 transitions, 1518 flow [2023-08-30 13:06:31,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:31,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:31,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 13:06:31,108 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:31,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:31,109 INFO L85 PathProgramCache]: Analyzing trace with hash 2100797281, now seen corresponding path program 6 times [2023-08-30 13:06:31,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:31,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993345055] [2023-08-30 13:06:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:31,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:31,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:31,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993345055] [2023-08-30 13:06:31,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993345055] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:31,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:31,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:31,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851333896] [2023-08-30 13:06:31,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:31,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:31,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:31,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:31,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:31,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 13:06:31,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 99 transitions, 1518 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:31,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 13:06:31,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:32,378 INFO L130 PetriNetUnfolder]: 102/294 cut-off events. [2023-08-30 13:06:32,379 INFO L131 PetriNetUnfolder]: For 2680/2680 co-relation queries the response was YES. [2023-08-30 13:06:32,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1966 conditions, 294 events. 102/294 cut-off events. For 2680/2680 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1584 event pairs, 22 based on Foata normal form. 3/297 useless extension candidates. Maximal degree in co-relation 1829. Up to 167 conditions per place. [2023-08-30 13:06:32,382 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 61 selfloop transitions, 46 changer transitions 3/110 dead transitions. [2023-08-30 13:06:32,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 110 transitions, 1766 flow [2023-08-30 13:06:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:32,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:32,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1289 transitions. [2023-08-30 13:06:32,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45596038203042094 [2023-08-30 13:06:32,386 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1289 transitions. [2023-08-30 13:06:32,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1289 transitions. [2023-08-30 13:06:32,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:32,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1289 transitions. [2023-08-30 13:06:32,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.18181818181819) internal successors, (1289), 11 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:32,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:32,392 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:32,392 INFO L175 Difference]: Start difference. First operand has 140 places, 99 transitions, 1518 flow. Second operand 11 states and 1289 transitions. [2023-08-30 13:06:32,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 110 transitions, 1766 flow [2023-08-30 13:06:32,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 110 transitions, 1652 flow, removed 8 selfloop flow, removed 11 redundant places. [2023-08-30 13:06:32,406 INFO L231 Difference]: Finished difference. Result has 137 places, 98 transitions, 1489 flow [2023-08-30 13:06:32,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1489, PETRI_PLACES=137, PETRI_TRANSITIONS=98} [2023-08-30 13:06:32,407 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2023-08-30 13:06:32,407 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 98 transitions, 1489 flow [2023-08-30 13:06:32,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:32,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:32,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:32,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 13:06:32,408 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 13:06:32,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:32,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2103490078, now seen corresponding path program 2 times [2023-08-30 13:06:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:32,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580941387] [2023-08-30 13:06:32,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:32,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:32,667 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 13:06:32,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:32,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580941387] [2023-08-30 13:06:32,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580941387] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:32,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:32,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:32,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999758670] [2023-08-30 13:06:32,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:32,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:32,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:32,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:32,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:32,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 13:06:32,816 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 98 transitions, 1489 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:32,816 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:32,816 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 13:06:32,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:33,069 INFO L130 PetriNetUnfolder]: 99/285 cut-off events. [2023-08-30 13:06:33,069 INFO L131 PetriNetUnfolder]: For 2634/2634 co-relation queries the response was YES. [2023-08-30 13:06:33,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1905 conditions, 285 events. 99/285 cut-off events. For 2634/2634 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1507 event pairs, 37 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 1704. Up to 105 conditions per place. [2023-08-30 13:06:33,072 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 55 selfloop transitions, 52 changer transitions 3/110 dead transitions. [2023-08-30 13:06:33,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 110 transitions, 1745 flow [2023-08-30 13:06:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:33,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:33,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1241 transitions. [2023-08-30 13:06:33,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4828793774319066 [2023-08-30 13:06:33,074 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1241 transitions. [2023-08-30 13:06:33,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1241 transitions. [2023-08-30 13:06:33,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:33,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1241 transitions. [2023-08-30 13:06:33,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.1) internal successors, (1241), 10 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,079 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,079 INFO L175 Difference]: Start difference. First operand has 137 places, 98 transitions, 1489 flow. Second operand 10 states and 1241 transitions. [2023-08-30 13:06:33,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 110 transitions, 1745 flow [2023-08-30 13:06:33,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 110 transitions, 1631 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-30 13:06:33,091 INFO L231 Difference]: Finished difference. Result has 136 places, 95 transitions, 1449 flow [2023-08-30 13:06:33,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1366, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1449, PETRI_PLACES=136, PETRI_TRANSITIONS=95} [2023-08-30 13:06:33,092 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 107 predicate places. [2023-08-30 13:06:33,092 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 95 transitions, 1449 flow [2023-08-30 13:06:33,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:33,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:33,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 13:06:33,093 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 13:06:33,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:33,094 INFO L85 PathProgramCache]: Analyzing trace with hash 2097850559, now seen corresponding path program 3 times [2023-08-30 13:06:33,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:33,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757729223] [2023-08-30 13:06:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:33,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:33,535 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 13:06:33,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:33,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757729223] [2023-08-30 13:06:33,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757729223] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:33,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:33,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:33,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560786174] [2023-08-30 13:06:33,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:33,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:33,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:33,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:33,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:33,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:06:33,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 95 transitions, 1449 flow. Second operand has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:33,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:06:33,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:34,268 INFO L130 PetriNetUnfolder]: 88/260 cut-off events. [2023-08-30 13:06:34,268 INFO L131 PetriNetUnfolder]: For 2586/2586 co-relation queries the response was YES. [2023-08-30 13:06:34,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1774 conditions, 260 events. 88/260 cut-off events. For 2586/2586 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1327 event pairs, 24 based on Foata normal form. 2/262 useless extension candidates. Maximal degree in co-relation 1606. Up to 173 conditions per place. [2023-08-30 13:06:34,271 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 57 selfloop transitions, 42 changer transitions 6/105 dead transitions. [2023-08-30 13:06:34,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 105 transitions, 1683 flow [2023-08-30 13:06:34,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:34,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:34,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1600 transitions. [2023-08-30 13:06:34,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44469149527515284 [2023-08-30 13:06:34,273 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1600 transitions. [2023-08-30 13:06:34,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1600 transitions. [2023-08-30 13:06:34,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:34,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1600 transitions. [2023-08-30 13:06:34,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.28571428571429) internal successors, (1600), 14 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,279 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,280 INFO L175 Difference]: Start difference. First operand has 136 places, 95 transitions, 1449 flow. Second operand 14 states and 1600 transitions. [2023-08-30 13:06:34,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 105 transitions, 1683 flow [2023-08-30 13:06:34,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 105 transitions, 1576 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:34,291 INFO L231 Difference]: Finished difference. Result has 137 places, 91 transitions, 1391 flow [2023-08-30 13:06:34,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1332, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1391, PETRI_PLACES=137, PETRI_TRANSITIONS=91} [2023-08-30 13:06:34,291 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2023-08-30 13:06:34,291 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 91 transitions, 1391 flow [2023-08-30 13:06:34,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:34,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:34,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 13:06:34,292 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 13:06:34,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash 249712732, now seen corresponding path program 1 times [2023-08-30 13:06:34,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:34,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104741661] [2023-08-30 13:06:34,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:34,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:34,848 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 13:06:34,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:34,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104741661] [2023-08-30 13:06:34,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104741661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:34,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:34,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:34,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349620456] [2023-08-30 13:06:34,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:34,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:34,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:34,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:34,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:35,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:06:35,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 91 transitions, 1391 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:35,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:06:35,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:35,741 INFO L130 PetriNetUnfolder]: 96/312 cut-off events. [2023-08-30 13:06:35,742 INFO L131 PetriNetUnfolder]: For 3523/3523 co-relation queries the response was YES. [2023-08-30 13:06:35,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 312 events. 96/312 cut-off events. For 3523/3523 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1833 event pairs, 13 based on Foata normal form. 4/316 useless extension candidates. Maximal degree in co-relation 1755. Up to 105 conditions per place. [2023-08-30 13:06:35,745 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 112 selfloop transitions, 35 changer transitions 0/147 dead transitions. [2023-08-30 13:06:35,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 147 transitions, 2526 flow [2023-08-30 13:06:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:35,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:35,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1376 transitions. [2023-08-30 13:06:35,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461738002594034 [2023-08-30 13:06:35,750 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1376 transitions. [2023-08-30 13:06:35,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1376 transitions. [2023-08-30 13:06:35,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:35,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1376 transitions. [2023-08-30 13:06:35,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.66666666666667) internal successors, (1376), 12 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,757 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,757 INFO L175 Difference]: Start difference. First operand has 137 places, 91 transitions, 1391 flow. Second operand 12 states and 1376 transitions. [2023-08-30 13:06:35,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 147 transitions, 2526 flow [2023-08-30 13:06:35,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 147 transitions, 2328 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-08-30 13:06:35,769 INFO L231 Difference]: Finished difference. Result has 132 places, 110 transitions, 1727 flow [2023-08-30 13:06:35,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1255, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1727, PETRI_PLACES=132, PETRI_TRANSITIONS=110} [2023-08-30 13:06:35,770 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 103 predicate places. [2023-08-30 13:06:35,770 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 110 transitions, 1727 flow [2023-08-30 13:06:35,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:35,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:35,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 13:06:35,771 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:35,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:35,771 INFO L85 PathProgramCache]: Analyzing trace with hash 374437232, now seen corresponding path program 2 times [2023-08-30 13:06:35,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:35,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727276060] [2023-08-30 13:06:35,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:35,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:36,506 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 13:06:36,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:36,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727276060] [2023-08-30 13:06:36,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727276060] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:36,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:36,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:36,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597465587] [2023-08-30 13:06:36,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:36,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:36,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:36,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:36,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:37,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 257 [2023-08-30 13:06:37,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 110 transitions, 1727 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:37,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 257 [2023-08-30 13:06:37,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:37,554 INFO L130 PetriNetUnfolder]: 95/369 cut-off events. [2023-08-30 13:06:37,554 INFO L131 PetriNetUnfolder]: For 4570/4570 co-relation queries the response was YES. [2023-08-30 13:06:37,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2570 conditions, 369 events. 95/369 cut-off events. For 4570/4570 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2485 event pairs, 19 based on Foata normal form. 18/387 useless extension candidates. Maximal degree in co-relation 2251. Up to 120 conditions per place. [2023-08-30 13:06:37,558 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 61 selfloop transitions, 90 changer transitions 0/151 dead transitions. [2023-08-30 13:06:37,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 151 transitions, 2499 flow [2023-08-30 13:06:37,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:37,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:37,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1520 transitions. [2023-08-30 13:06:37,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4224569205113952 [2023-08-30 13:06:37,560 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1520 transitions. [2023-08-30 13:06:37,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1520 transitions. [2023-08-30 13:06:37,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:37,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1520 transitions. [2023-08-30 13:06:37,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 108.57142857142857) internal successors, (1520), 14 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,566 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,566 INFO L175 Difference]: Start difference. First operand has 132 places, 110 transitions, 1727 flow. Second operand 14 states and 1520 transitions. [2023-08-30 13:06:37,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 151 transitions, 2499 flow [2023-08-30 13:06:37,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 151 transitions, 2466 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:37,581 INFO L231 Difference]: Finished difference. Result has 146 places, 132 transitions, 2386 flow [2023-08-30 13:06:37,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1697, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2386, PETRI_PLACES=146, PETRI_TRANSITIONS=132} [2023-08-30 13:06:37,582 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 117 predicate places. [2023-08-30 13:06:37,582 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 132 transitions, 2386 flow [2023-08-30 13:06:37,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:37,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:37,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 13:06:37,583 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:37,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:37,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1174441809, now seen corresponding path program 1 times [2023-08-30 13:06:37,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:37,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224647181] [2023-08-30 13:06:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:37,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:38,216 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 13:06:38,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:38,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224647181] [2023-08-30 13:06:38,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224647181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:38,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:38,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:38,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023832066] [2023-08-30 13:06:38,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:38,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:38,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:38,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:38,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:38,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-08-30 13:06:38,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 132 transitions, 2386 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:38,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:38,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-08-30 13:06:38,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:39,077 INFO L130 PetriNetUnfolder]: 94/370 cut-off events. [2023-08-30 13:06:39,077 INFO L131 PetriNetUnfolder]: For 5804/5804 co-relation queries the response was YES. [2023-08-30 13:06:39,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2892 conditions, 370 events. 94/370 cut-off events. For 5804/5804 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2493 event pairs, 44 based on Foata normal form. 2/372 useless extension candidates. Maximal degree in co-relation 2547. Up to 252 conditions per place. [2023-08-30 13:06:39,080 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 128 selfloop transitions, 28 changer transitions 4/160 dead transitions. [2023-08-30 13:06:39,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 160 transitions, 3032 flow [2023-08-30 13:06:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:39,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1425 transitions. [2023-08-30 13:06:39,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42651900628554323 [2023-08-30 13:06:39,083 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1425 transitions. [2023-08-30 13:06:39,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1425 transitions. [2023-08-30 13:06:39,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:39,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1425 transitions. [2023-08-30 13:06:39,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 109.61538461538461) internal successors, (1425), 13 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:39,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:39,089 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:39,089 INFO L175 Difference]: Start difference. First operand has 146 places, 132 transitions, 2386 flow. Second operand 13 states and 1425 transitions. [2023-08-30 13:06:39,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 160 transitions, 3032 flow [2023-08-30 13:06:39,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 160 transitions, 2947 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:39,104 INFO L231 Difference]: Finished difference. Result has 157 places, 139 transitions, 2538 flow [2023-08-30 13:06:39,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2308, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2538, PETRI_PLACES=157, PETRI_TRANSITIONS=139} [2023-08-30 13:06:39,105 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 128 predicate places. [2023-08-30 13:06:39,105 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 139 transitions, 2538 flow [2023-08-30 13:06:39,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:39,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:39,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:39,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 13:06:39,106 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:39,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:39,107 INFO L85 PathProgramCache]: Analyzing trace with hash -534982208, now seen corresponding path program 3 times [2023-08-30 13:06:39,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:39,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437774752] [2023-08-30 13:06:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:39,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:39,748 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 13:06:39,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:39,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437774752] [2023-08-30 13:06:39,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437774752] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:39,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:39,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:39,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627633994] [2023-08-30 13:06:39,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:39,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:39,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:39,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:39,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:40,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 257 [2023-08-30 13:06:40,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 139 transitions, 2538 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:40,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 257 [2023-08-30 13:06:40,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:40,627 INFO L130 PetriNetUnfolder]: 94/372 cut-off events. [2023-08-30 13:06:40,627 INFO L131 PetriNetUnfolder]: For 6099/6099 co-relation queries the response was YES. [2023-08-30 13:06:40,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 372 events. 94/372 cut-off events. For 6099/6099 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2500 event pairs, 32 based on Foata normal form. 2/374 useless extension candidates. Maximal degree in co-relation 2823. Up to 231 conditions per place. [2023-08-30 13:06:40,631 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 123 selfloop transitions, 36 changer transitions 0/159 dead transitions. [2023-08-30 13:06:40,631 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 159 transitions, 3070 flow [2023-08-30 13:06:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1396 transitions. [2023-08-30 13:06:40,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41783897036815326 [2023-08-30 13:06:40,633 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1396 transitions. [2023-08-30 13:06:40,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1396 transitions. [2023-08-30 13:06:40,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:40,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1396 transitions. [2023-08-30 13:06:40,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.38461538461539) internal successors, (1396), 13 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,638 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,638 INFO L175 Difference]: Start difference. First operand has 157 places, 139 transitions, 2538 flow. Second operand 13 states and 1396 transitions. [2023-08-30 13:06:40,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 159 transitions, 3070 flow [2023-08-30 13:06:40,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 159 transitions, 3048 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:40,659 INFO L231 Difference]: Finished difference. Result has 164 places, 147 transitions, 2753 flow [2023-08-30 13:06:40,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2518, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2753, PETRI_PLACES=164, PETRI_TRANSITIONS=147} [2023-08-30 13:06:40,660 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 135 predicate places. [2023-08-30 13:06:40,660 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 147 transitions, 2753 flow [2023-08-30 13:06:40,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:40,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:40,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 13:06:40,661 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 13:06:40,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:40,661 INFO L85 PathProgramCache]: Analyzing trace with hash -646545344, now seen corresponding path program 4 times [2023-08-30 13:06:40,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:40,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695969661] [2023-08-30 13:06:40,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:40,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:41,014 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 13:06:41,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:41,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695969661] [2023-08-30 13:06:41,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695969661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:41,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:41,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:41,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430113647] [2023-08-30 13:06:41,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:41,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:41,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:41,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:41,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:41,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:06:41,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 147 transitions, 2753 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:41,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:41,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:06:41,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:41,853 INFO L130 PetriNetUnfolder]: 96/401 cut-off events. [2023-08-30 13:06:41,854 INFO L131 PetriNetUnfolder]: For 6808/6808 co-relation queries the response was YES. [2023-08-30 13:06:41,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3264 conditions, 401 events. 96/401 cut-off events. For 6808/6808 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2868 event pairs, 11 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 3127. Up to 148 conditions per place. [2023-08-30 13:06:41,860 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 133 selfloop transitions, 60 changer transitions 1/194 dead transitions. [2023-08-30 13:06:41,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 194 transitions, 3778 flow [2023-08-30 13:06:41,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1259 transitions. [2023-08-30 13:06:41,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44534842589317297 [2023-08-30 13:06:41,864 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1259 transitions. [2023-08-30 13:06:41,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1259 transitions. [2023-08-30 13:06:41,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:41,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1259 transitions. [2023-08-30 13:06:41,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.45454545454545) internal successors, (1259), 11 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:41,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:41,868 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:41,869 INFO L175 Difference]: Start difference. First operand has 164 places, 147 transitions, 2753 flow. Second operand 11 states and 1259 transitions. [2023-08-30 13:06:41,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 194 transitions, 3778 flow [2023-08-30 13:06:41,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 194 transitions, 3684 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:41,893 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 3246 flow [2023-08-30 13:06:41,893 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2666, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3246, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2023-08-30 13:06:41,894 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 141 predicate places. [2023-08-30 13:06:41,894 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 3246 flow [2023-08-30 13:06:41,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:41,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:41,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:41,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 13:06:41,895 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 13:06:41,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1409270079, now seen corresponding path program 2 times [2023-08-30 13:06:41,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:41,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679599940] [2023-08-30 13:06:41,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:41,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:42,468 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 13:06:42,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:42,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679599940] [2023-08-30 13:06:42,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679599940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:42,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:42,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:42,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789943408] [2023-08-30 13:06:42,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:42,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:42,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:42,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:42,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:42,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 13:06:42,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 3246 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:42,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:42,969 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 13:06:42,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:43,499 INFO L130 PetriNetUnfolder]: 95/397 cut-off events. [2023-08-30 13:06:43,500 INFO L131 PetriNetUnfolder]: For 7664/7664 co-relation queries the response was YES. [2023-08-30 13:06:43,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3412 conditions, 397 events. 95/397 cut-off events. For 7664/7664 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2821 event pairs, 36 based on Foata normal form. 2/399 useless extension candidates. Maximal degree in co-relation 3272. Up to 271 conditions per place. [2023-08-30 13:06:43,504 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 92 selfloop transitions, 77 changer transitions 13/182 dead transitions. [2023-08-30 13:06:43,504 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 3742 flow [2023-08-30 13:06:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:06:43,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:06:43,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1589 transitions. [2023-08-30 13:06:43,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4121919584954604 [2023-08-30 13:06:43,507 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1589 transitions. [2023-08-30 13:06:43,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1589 transitions. [2023-08-30 13:06:43,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:43,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1589 transitions. [2023-08-30 13:06:43,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 105.93333333333334) internal successors, (1589), 15 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:43,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 257.0) internal successors, (4112), 16 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:43,514 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 257.0) internal successors, (4112), 16 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:43,514 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 3246 flow. Second operand 15 states and 1589 transitions. [2023-08-30 13:06:43,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 3742 flow [2023-08-30 13:06:43,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 182 transitions, 3703 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:43,542 INFO L231 Difference]: Finished difference. Result has 181 places, 162 transitions, 3351 flow [2023-08-30 13:06:43,543 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3198, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3351, PETRI_PLACES=181, PETRI_TRANSITIONS=162} [2023-08-30 13:06:43,543 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 152 predicate places. [2023-08-30 13:06:43,543 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 162 transitions, 3351 flow [2023-08-30 13:06:43,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:43,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:43,544 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:43,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 13:06:43,544 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:43,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:43,544 INFO L85 PathProgramCache]: Analyzing trace with hash 369223332, now seen corresponding path program 5 times [2023-08-30 13:06:43,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:43,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134418766] [2023-08-30 13:06:43,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:43,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:43,967 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 13:06:43,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:43,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134418766] [2023-08-30 13:06:43,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134418766] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:43,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:43,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:43,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749144071] [2023-08-30 13:06:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:43,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:43,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:43,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:43,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:44,325 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:06:44,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 162 transitions, 3351 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:44,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:06:44,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:44,672 INFO L130 PetriNetUnfolder]: 89/374 cut-off events. [2023-08-30 13:06:44,673 INFO L131 PetriNetUnfolder]: For 7949/7949 co-relation queries the response was YES. [2023-08-30 13:06:44,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3356 conditions, 374 events. 89/374 cut-off events. For 7949/7949 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2619 event pairs, 12 based on Foata normal form. 6/380 useless extension candidates. Maximal degree in co-relation 3250. Up to 108 conditions per place. [2023-08-30 13:06:44,677 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 118 selfloop transitions, 59 changer transitions 0/177 dead transitions. [2023-08-30 13:06:44,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 177 transitions, 3810 flow [2023-08-30 13:06:44,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:44,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:44,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1265 transitions. [2023-08-30 13:06:44,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4474708171206226 [2023-08-30 13:06:44,680 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1265 transitions. [2023-08-30 13:06:44,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1265 transitions. [2023-08-30 13:06:44,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:44,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1265 transitions. [2023-08-30 13:06:44,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,685 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,686 INFO L175 Difference]: Start difference. First operand has 181 places, 162 transitions, 3351 flow. Second operand 11 states and 1265 transitions. [2023-08-30 13:06:44,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 177 transitions, 3810 flow [2023-08-30 13:06:44,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 177 transitions, 3504 flow, removed 5 selfloop flow, removed 14 redundant places. [2023-08-30 13:06:44,713 INFO L231 Difference]: Finished difference. Result has 175 places, 161 transitions, 3164 flow [2023-08-30 13:06:44,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3031, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3164, PETRI_PLACES=175, PETRI_TRANSITIONS=161} [2023-08-30 13:06:44,714 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 146 predicate places. [2023-08-30 13:06:44,714 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 161 transitions, 3164 flow [2023-08-30 13:06:44,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:44,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:44,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 13:06:44,715 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:44,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:44,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1163899693, now seen corresponding path program 3 times [2023-08-30 13:06:44,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:44,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337246010] [2023-08-30 13:06:44,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:44,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:45,361 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 13:06:45,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:45,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337246010] [2023-08-30 13:06:45,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337246010] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:45,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:45,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:45,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124808669] [2023-08-30 13:06:45,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:45,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:45,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:45,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:45,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:45,969 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 13:06:45,969 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 161 transitions, 3164 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:45,969 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:45,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 13:06:45,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:46,571 INFO L130 PetriNetUnfolder]: 93/397 cut-off events. [2023-08-30 13:06:46,572 INFO L131 PetriNetUnfolder]: For 7573/7573 co-relation queries the response was YES. [2023-08-30 13:06:46,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3428 conditions, 397 events. 93/397 cut-off events. For 7573/7573 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2839 event pairs, 32 based on Foata normal form. 6/403 useless extension candidates. Maximal degree in co-relation 3302. Up to 271 conditions per place. [2023-08-30 13:06:46,574 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 100 selfloop transitions, 86 changer transitions 5/191 dead transitions. [2023-08-30 13:06:46,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 191 transitions, 3865 flow [2023-08-30 13:06:46,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:06:46,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:06:46,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1697 transitions. [2023-08-30 13:06:46,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41269455252918286 [2023-08-30 13:06:46,577 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1697 transitions. [2023-08-30 13:06:46,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1697 transitions. [2023-08-30 13:06:46,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:46,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1697 transitions. [2023-08-30 13:06:46,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 106.0625) internal successors, (1697), 16 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:46,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:46,583 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:46,583 INFO L175 Difference]: Start difference. First operand has 175 places, 161 transitions, 3164 flow. Second operand 16 states and 1697 transitions. [2023-08-30 13:06:46,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 191 transitions, 3865 flow [2023-08-30 13:06:46,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 191 transitions, 3824 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:46,610 INFO L231 Difference]: Finished difference. Result has 191 places, 172 transitions, 3580 flow [2023-08-30 13:06:46,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3109, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3580, PETRI_PLACES=191, PETRI_TRANSITIONS=172} [2023-08-30 13:06:46,610 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 162 predicate places. [2023-08-30 13:06:46,610 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 172 transitions, 3580 flow [2023-08-30 13:06:46,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:46,611 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:46,611 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:46,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 13:06:46,611 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:46,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:46,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1180813238, now seen corresponding path program 6 times [2023-08-30 13:06:46,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:46,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056301614] [2023-08-30 13:06:46,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:46,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:47,032 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 13:06:47,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:47,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056301614] [2023-08-30 13:06:47,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056301614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:47,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:47,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:47,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121474164] [2023-08-30 13:06:47,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:47,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:47,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:47,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:47,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:47,434 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:06:47,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 172 transitions, 3580 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,435 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:47,435 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:06:47,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:47,792 INFO L130 PetriNetUnfolder]: 95/404 cut-off events. [2023-08-30 13:06:47,792 INFO L131 PetriNetUnfolder]: For 8777/8777 co-relation queries the response was YES. [2023-08-30 13:06:47,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3693 conditions, 404 events. 95/404 cut-off events. For 8777/8777 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2900 event pairs, 26 based on Foata normal form. 4/408 useless extension candidates. Maximal degree in co-relation 3557. Up to 185 conditions per place. [2023-08-30 13:06:47,796 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 91 selfloop transitions, 98 changer transitions 0/189 dead transitions. [2023-08-30 13:06:47,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 189 transitions, 4160 flow [2023-08-30 13:06:47,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:47,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:47,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2023-08-30 13:06:47,798 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444777012870398 [2023-08-30 13:06:47,798 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2023-08-30 13:06:47,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2023-08-30 13:06:47,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:47,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2023-08-30 13:06:47,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.23076923076923) internal successors, (1485), 13 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,803 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,803 INFO L175 Difference]: Start difference. First operand has 191 places, 172 transitions, 3580 flow. Second operand 13 states and 1485 transitions. [2023-08-30 13:06:47,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 189 transitions, 4160 flow [2023-08-30 13:06:47,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 189 transitions, 3950 flow, removed 36 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:47,835 INFO L231 Difference]: Finished difference. Result has 195 places, 179 transitions, 3837 flow [2023-08-30 13:06:47,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3837, PETRI_PLACES=195, PETRI_TRANSITIONS=179} [2023-08-30 13:06:47,835 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 166 predicate places. [2023-08-30 13:06:47,836 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 179 transitions, 3837 flow [2023-08-30 13:06:47,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:47,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:47,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 13:06:47,836 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:47,836 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:47,837 INFO L85 PathProgramCache]: Analyzing trace with hash 265799873, now seen corresponding path program 4 times [2023-08-30 13:06:47,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:47,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923391971] [2023-08-30 13:06:47,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:47,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:48,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:48,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:48,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923391971] [2023-08-30 13:06:48,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923391971] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:48,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:48,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:48,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157483477] [2023-08-30 13:06:48,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:48,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:48,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:48,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:48,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:48,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-08-30 13:06:48,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 179 transitions, 3837 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:48,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:48,777 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-08-30 13:06:48,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:49,100 INFO L130 PetriNetUnfolder]: 94/401 cut-off events. [2023-08-30 13:06:49,100 INFO L131 PetriNetUnfolder]: For 9442/9442 co-relation queries the response was YES. [2023-08-30 13:06:49,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3810 conditions, 401 events. 94/401 cut-off events. For 9442/9442 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2870 event pairs, 35 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 3661. Up to 275 conditions per place. [2023-08-30 13:06:49,103 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 156 selfloop transitions, 30 changer transitions 4/190 dead transitions. [2023-08-30 13:06:49,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 190 transitions, 4290 flow [2023-08-30 13:06:49,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:49,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:49,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1314 transitions. [2023-08-30 13:06:49,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4260700389105058 [2023-08-30 13:06:49,106 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1314 transitions. [2023-08-30 13:06:49,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1314 transitions. [2023-08-30 13:06:49,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:49,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1314 transitions. [2023-08-30 13:06:49,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 109.5) internal successors, (1314), 12 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,110 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,110 INFO L175 Difference]: Start difference. First operand has 195 places, 179 transitions, 3837 flow. Second operand 12 states and 1314 transitions. [2023-08-30 13:06:49,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 190 transitions, 4290 flow [2023-08-30 13:06:49,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 190 transitions, 4046 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:49,147 INFO L231 Difference]: Finished difference. Result has 200 places, 180 transitions, 3627 flow [2023-08-30 13:06:49,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3580, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3627, PETRI_PLACES=200, PETRI_TRANSITIONS=180} [2023-08-30 13:06:49,148 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 171 predicate places. [2023-08-30 13:06:49,148 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 180 transitions, 3627 flow [2023-08-30 13:06:49,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:49,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:49,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 13:06:49,149 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 13:06:49,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:49,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1441454191, now seen corresponding path program 5 times [2023-08-30 13:06:49,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:49,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275383646] [2023-08-30 13:06:49,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:49,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:49,755 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 13:06:49,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:49,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275383646] [2023-08-30 13:06:49,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275383646] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:49,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:49,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:49,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101337639] [2023-08-30 13:06:49,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:49,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:49,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:49,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:49,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:50,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 13:06:50,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 180 transitions, 3627 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:50,327 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:50,327 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 13:06:50,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:51,117 INFO L130 PetriNetUnfolder]: 98/419 cut-off events. [2023-08-30 13:06:51,117 INFO L131 PetriNetUnfolder]: For 8663/8663 co-relation queries the response was YES. [2023-08-30 13:06:51,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3857 conditions, 419 events. 98/419 cut-off events. For 8663/8663 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3062 event pairs, 36 based on Foata normal form. 4/423 useless extension candidates. Maximal degree in co-relation 3707. Up to 271 conditions per place. [2023-08-30 13:06:51,120 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 109 selfloop transitions, 99 changer transitions 0/208 dead transitions. [2023-08-30 13:06:51,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 208 transitions, 4361 flow [2023-08-30 13:06:51,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-30 13:06:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-30 13:06:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2270 transitions. [2023-08-30 13:06:51,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4206040392810821 [2023-08-30 13:06:51,125 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2270 transitions. [2023-08-30 13:06:51,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2270 transitions. [2023-08-30 13:06:51,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:51,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2270 transitions. [2023-08-30 13:06:51,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 108.0952380952381) internal successors, (2270), 21 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,131 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,131 INFO L175 Difference]: Start difference. First operand has 200 places, 180 transitions, 3627 flow. Second operand 21 states and 2270 transitions. [2023-08-30 13:06:51,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 208 transitions, 4361 flow [2023-08-30 13:06:51,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 208 transitions, 4328 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:51,168 INFO L231 Difference]: Finished difference. Result has 218 places, 194 transitions, 4099 flow [2023-08-30 13:06:51,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3594, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4099, PETRI_PLACES=218, PETRI_TRANSITIONS=194} [2023-08-30 13:06:51,169 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 189 predicate places. [2023-08-30 13:06:51,169 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 194 transitions, 4099 flow [2023-08-30 13:06:51,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:51,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:51,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 13:06:51,170 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 13:06:51,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:51,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1277865269, now seen corresponding path program 6 times [2023-08-30 13:06:51,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:51,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744964139] [2023-08-30 13:06:51,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:51,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:51,670 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 13:06:51,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:51,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744964139] [2023-08-30 13:06:51,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744964139] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:51,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:51,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:51,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005872205] [2023-08-30 13:06:51,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:51,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:51,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:51,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:51,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:52,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 13:06:52,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 194 transitions, 4099 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:52,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:52,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 13:06:52,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:52,825 INFO L130 PetriNetUnfolder]: 89/392 cut-off events. [2023-08-30 13:06:52,825 INFO L131 PetriNetUnfolder]: For 9492/9492 co-relation queries the response was YES. [2023-08-30 13:06:52,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3712 conditions, 392 events. 89/392 cut-off events. For 9492/9492 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2831 event pairs, 16 based on Foata normal form. 18/410 useless extension candidates. Maximal degree in co-relation 3538. Up to 137 conditions per place. [2023-08-30 13:06:52,828 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 71 selfloop transitions, 97 changer transitions 37/205 dead transitions. [2023-08-30 13:06:52,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 205 transitions, 4552 flow [2023-08-30 13:06:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 13:06:52,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 13:06:52,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1913 transitions. [2023-08-30 13:06:52,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4135322092520536 [2023-08-30 13:06:52,830 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1913 transitions. [2023-08-30 13:06:52,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1913 transitions. [2023-08-30 13:06:52,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:52,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1913 transitions. [2023-08-30 13:06:52,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 106.27777777777777) internal successors, (1913), 18 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:52,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:52,836 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:52,836 INFO L175 Difference]: Start difference. First operand has 218 places, 194 transitions, 4099 flow. Second operand 18 states and 1913 transitions. [2023-08-30 13:06:52,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 205 transitions, 4552 flow [2023-08-30 13:06:52,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 205 transitions, 4384 flow, removed 19 selfloop flow, removed 9 redundant places. [2023-08-30 13:06:52,874 INFO L231 Difference]: Finished difference. Result has 229 places, 157 transitions, 3311 flow [2023-08-30 13:06:52,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3786, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3311, PETRI_PLACES=229, PETRI_TRANSITIONS=157} [2023-08-30 13:06:52,875 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 200 predicate places. [2023-08-30 13:06:52,875 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 157 transitions, 3311 flow [2023-08-30 13:06:52,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:52,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:52,875 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:52,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 13:06:52,876 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:52,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash -966788550, now seen corresponding path program 7 times [2023-08-30 13:06:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:52,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805360497] [2023-08-30 13:06:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:52,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:53,403 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 13:06:53,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:53,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805360497] [2023-08-30 13:06:53,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805360497] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:53,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:53,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:53,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630328071] [2023-08-30 13:06:53,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:53,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:53,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:53,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:53,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:53,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-08-30 13:06:53,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 157 transitions, 3311 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:53,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:53,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-08-30 13:06:53,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:54,256 INFO L130 PetriNetUnfolder]: 78/319 cut-off events. [2023-08-30 13:06:54,256 INFO L131 PetriNetUnfolder]: For 7465/7465 co-relation queries the response was YES. [2023-08-30 13:06:54,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3116 conditions, 319 events. 78/319 cut-off events. For 7465/7465 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2055 event pairs, 16 based on Foata normal form. 2/321 useless extension candidates. Maximal degree in co-relation 2973. Up to 111 conditions per place. [2023-08-30 13:06:54,258 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 90 selfloop transitions, 66 changer transitions 7/163 dead transitions. [2023-08-30 13:06:54,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 163 transitions, 3639 flow [2023-08-30 13:06:54,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:54,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:54,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1096 transitions. [2023-08-30 13:06:54,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4264591439688716 [2023-08-30 13:06:54,259 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1096 transitions. [2023-08-30 13:06:54,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1096 transitions. [2023-08-30 13:06:54,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:54,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1096 transitions. [2023-08-30 13:06:54,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 109.6) internal successors, (1096), 10 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:54,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:54,262 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:54,262 INFO L175 Difference]: Start difference. First operand has 229 places, 157 transitions, 3311 flow. Second operand 10 states and 1096 transitions. [2023-08-30 13:06:54,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 163 transitions, 3639 flow [2023-08-30 13:06:54,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 163 transitions, 3342 flow, removed 23 selfloop flow, removed 22 redundant places. [2023-08-30 13:06:54,285 INFO L231 Difference]: Finished difference. Result has 208 places, 151 transitions, 3024 flow [2023-08-30 13:06:54,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2983, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3024, PETRI_PLACES=208, PETRI_TRANSITIONS=151} [2023-08-30 13:06:54,286 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 179 predicate places. [2023-08-30 13:06:54,286 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 151 transitions, 3024 flow [2023-08-30 13:06:54,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:54,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:54,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:54,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 13:06:54,287 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:54,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:54,287 INFO L85 PathProgramCache]: Analyzing trace with hash 615564081, now seen corresponding path program 7 times [2023-08-30 13:06:54,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:54,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652456044] [2023-08-30 13:06:54,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:54,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:54,946 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 13:06:54,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:54,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652456044] [2023-08-30 13:06:54,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652456044] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:54,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:54,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:54,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787758341] [2023-08-30 13:06:54,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:54,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:54,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:54,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:54,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:55,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 13:06:55,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 151 transitions, 3024 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:55,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:55,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 13:06:55,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:56,301 INFO L130 PetriNetUnfolder]: 84/353 cut-off events. [2023-08-30 13:06:56,301 INFO L131 PetriNetUnfolder]: For 7556/7556 co-relation queries the response was YES. [2023-08-30 13:06:56,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3345 conditions, 353 events. 84/353 cut-off events. For 7556/7556 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2399 event pairs, 26 based on Foata normal form. 2/355 useless extension candidates. Maximal degree in co-relation 3173. Up to 209 conditions per place. [2023-08-30 13:06:56,304 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 106 selfloop transitions, 69 changer transitions 6/181 dead transitions. [2023-08-30 13:06:56,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 181 transitions, 3891 flow [2023-08-30 13:06:56,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:06:56,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:06:56,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1843 transitions. [2023-08-30 13:06:56,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4218356603341726 [2023-08-30 13:06:56,307 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1843 transitions. [2023-08-30 13:06:56,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1843 transitions. [2023-08-30 13:06:56,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:56,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1843 transitions. [2023-08-30 13:06:56,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 108.41176470588235) internal successors, (1843), 17 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:56,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:56,313 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:56,313 INFO L175 Difference]: Start difference. First operand has 208 places, 151 transitions, 3024 flow. Second operand 17 states and 1843 transitions. [2023-08-30 13:06:56,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 181 transitions, 3891 flow [2023-08-30 13:06:56,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 181 transitions, 3691 flow, removed 10 selfloop flow, removed 9 redundant places. [2023-08-30 13:06:56,341 INFO L231 Difference]: Finished difference. Result has 217 places, 159 transitions, 3196 flow [2023-08-30 13:06:56,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2860, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3196, PETRI_PLACES=217, PETRI_TRANSITIONS=159} [2023-08-30 13:06:56,342 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 188 predicate places. [2023-08-30 13:06:56,342 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 159 transitions, 3196 flow [2023-08-30 13:06:56,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:56,343 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:56,343 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:56,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 13:06:56,343 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 13:06:56,343 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:56,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1441514097, now seen corresponding path program 8 times [2023-08-30 13:06:56,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:56,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919137861] [2023-08-30 13:06:56,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:56,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:57,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:57,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:57,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919137861] [2023-08-30 13:06:57,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919137861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:57,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:57,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:57,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826264541] [2023-08-30 13:06:57,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:57,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:57,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:57,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:57,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:57,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 13:06:57,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 159 transitions, 3196 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:57,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:57,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 13:06:57,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:58,045 INFO L130 PetriNetUnfolder]: 80/337 cut-off events. [2023-08-30 13:06:58,045 INFO L131 PetriNetUnfolder]: For 7016/7016 co-relation queries the response was YES. [2023-08-30 13:06:58,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3143 conditions, 337 events. 80/337 cut-off events. For 7016/7016 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2250 event pairs, 24 based on Foata normal form. 6/343 useless extension candidates. Maximal degree in co-relation 3021. Up to 240 conditions per place. [2023-08-30 13:06:58,047 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 94 selfloop transitions, 52 changer transitions 22/168 dead transitions. [2023-08-30 13:06:58,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 168 transitions, 3601 flow [2023-08-30 13:06:58,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:58,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:58,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1408 transitions. [2023-08-30 13:06:58,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42143070936845256 [2023-08-30 13:06:58,050 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1408 transitions. [2023-08-30 13:06:58,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1408 transitions. [2023-08-30 13:06:58,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:58,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1408 transitions. [2023-08-30 13:06:58,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 108.3076923076923) internal successors, (1408), 13 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:58,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:58,055 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:58,055 INFO L175 Difference]: Start difference. First operand has 217 places, 159 transitions, 3196 flow. Second operand 13 states and 1408 transitions. [2023-08-30 13:06:58,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 168 transitions, 3601 flow [2023-08-30 13:06:58,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 168 transitions, 3450 flow, removed 11 selfloop flow, removed 9 redundant places. [2023-08-30 13:06:58,084 INFO L231 Difference]: Finished difference. Result has 222 places, 145 transitions, 2818 flow [2023-08-30 13:06:58,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3049, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2818, PETRI_PLACES=222, PETRI_TRANSITIONS=145} [2023-08-30 13:06:58,085 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 193 predicate places. [2023-08-30 13:06:58,085 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 145 transitions, 2818 flow [2023-08-30 13:06:58,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:58,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:58,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:58,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-30 13:06:58,086 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 13:06:58,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:58,086 INFO L85 PathProgramCache]: Analyzing trace with hash -178846569, now seen corresponding path program 9 times [2023-08-30 13:06:58,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:58,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971813858] [2023-08-30 13:06:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:58,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:58,760 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 13:06:58,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:58,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971813858] [2023-08-30 13:06:58,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971813858] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:58,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:58,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:58,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713745051] [2023-08-30 13:06:58,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:58,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:58,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:58,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:58,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:59,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 13:06:59,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 145 transitions, 2818 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:59,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:59,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 13:06:59,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:59,981 INFO L130 PetriNetUnfolder]: 72/301 cut-off events. [2023-08-30 13:06:59,981 INFO L131 PetriNetUnfolder]: For 5651/5651 co-relation queries the response was YES. [2023-08-30 13:06:59,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 301 events. 72/301 cut-off events. For 5651/5651 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1926 event pairs, 22 based on Foata normal form. 4/305 useless extension candidates. Maximal degree in co-relation 2760. Up to 195 conditions per place. [2023-08-30 13:06:59,983 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 79 selfloop transitions, 66 changer transitions 5/150 dead transitions. [2023-08-30 13:06:59,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 150 transitions, 3130 flow [2023-08-30 13:06:59,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-30 13:06:59,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-30 13:06:59,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2260 transitions. [2023-08-30 13:06:59,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41875115805076896 [2023-08-30 13:06:59,988 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2260 transitions. [2023-08-30 13:06:59,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2260 transitions. [2023-08-30 13:06:59,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:59,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2260 transitions. [2023-08-30 13:06:59,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 107.61904761904762) internal successors, (2260), 21 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:59,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:59,993 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:59,993 INFO L175 Difference]: Start difference. First operand has 222 places, 145 transitions, 2818 flow. Second operand 21 states and 2260 transitions. [2023-08-30 13:06:59,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 150 transitions, 3130 flow [2023-08-30 13:07:00,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 150 transitions, 3013 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-30 13:07:00,010 INFO L231 Difference]: Finished difference. Result has 227 places, 140 transitions, 2726 flow [2023-08-30 13:07:00,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2701, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2726, PETRI_PLACES=227, PETRI_TRANSITIONS=140} [2023-08-30 13:07:00,011 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 198 predicate places. [2023-08-30 13:07:00,011 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 140 transitions, 2726 flow [2023-08-30 13:07:00,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:00,012 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:00,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:00,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-30 13:07:00,012 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:00,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:00,013 INFO L85 PathProgramCache]: Analyzing trace with hash 356383232, now seen corresponding path program 8 times [2023-08-30 13:07:00,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:00,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754345849] [2023-08-30 13:07:00,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:00,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:00,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:00,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:00,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754345849] [2023-08-30 13:07:00,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754345849] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:00,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:00,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:07:00,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191511673] [2023-08-30 13:07:00,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:00,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:07:00,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:00,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:07:00,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:07:00,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:07:00,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 140 transitions, 2726 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:00,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:00,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:07:00,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:01,159 INFO L130 PetriNetUnfolder]: 67/288 cut-off events. [2023-08-30 13:07:01,159 INFO L131 PetriNetUnfolder]: For 5238/5238 co-relation queries the response was YES. [2023-08-30 13:07:01,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2711 conditions, 288 events. 67/288 cut-off events. For 5238/5238 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1823 event pairs, 15 based on Foata normal form. 6/294 useless extension candidates. Maximal degree in co-relation 2548. Up to 120 conditions per place. [2023-08-30 13:07:01,161 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 104 selfloop transitions, 42 changer transitions 10/156 dead transitions. [2023-08-30 13:07:01,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 156 transitions, 3175 flow [2023-08-30 13:07:01,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:07:01,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:07:01,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1375 transitions. [2023-08-30 13:07:01,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4458495460440986 [2023-08-30 13:07:01,166 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1375 transitions. [2023-08-30 13:07:01,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1375 transitions. [2023-08-30 13:07:01,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:01,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1375 transitions. [2023-08-30 13:07:01,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.58333333333333) internal successors, (1375), 12 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:01,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:01,170 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:01,170 INFO L175 Difference]: Start difference. First operand has 227 places, 140 transitions, 2726 flow. Second operand 12 states and 1375 transitions. [2023-08-30 13:07:01,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 156 transitions, 3175 flow [2023-08-30 13:07:01,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 156 transitions, 3009 flow, removed 7 selfloop flow, removed 20 redundant places. [2023-08-30 13:07:01,192 INFO L231 Difference]: Finished difference. Result has 220 places, 136 transitions, 2664 flow [2023-08-30 13:07:01,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2535, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2664, PETRI_PLACES=220, PETRI_TRANSITIONS=136} [2023-08-30 13:07:01,193 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 191 predicate places. [2023-08-30 13:07:01,193 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 136 transitions, 2664 flow [2023-08-30 13:07:01,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:01,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:01,193 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:01,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-30 13:07:01,193 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 13:07:01,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:01,194 INFO L85 PathProgramCache]: Analyzing trace with hash -184659479, now seen corresponding path program 10 times [2023-08-30 13:07:01,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:01,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816993636] [2023-08-30 13:07:01,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:01,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:01,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:01,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:01,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816993636] [2023-08-30 13:07:01,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816993636] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:01,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:01,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:01,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895799218] [2023-08-30 13:07:01,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:01,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:01,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:01,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:01,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:02,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 13:07:02,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 136 transitions, 2664 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:02,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:02,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 13:07:02,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:03,281 INFO L130 PetriNetUnfolder]: 60/260 cut-off events. [2023-08-30 13:07:03,281 INFO L131 PetriNetUnfolder]: For 5094/5094 co-relation queries the response was YES. [2023-08-30 13:07:03,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 260 events. 60/260 cut-off events. For 5094/5094 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1599 event pairs, 17 based on Foata normal form. 6/266 useless extension candidates. Maximal degree in co-relation 2403. Up to 77 conditions per place. [2023-08-30 13:07:03,283 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 77 selfloop transitions, 49 changer transitions 22/148 dead transitions. [2023-08-30 13:07:03,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 148 transitions, 2957 flow [2023-08-30 13:07:03,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:07:03,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:07:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1842 transitions. [2023-08-30 13:07:03,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42160677500572213 [2023-08-30 13:07:03,284 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1842 transitions. [2023-08-30 13:07:03,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1842 transitions. [2023-08-30 13:07:03,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:03,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1842 transitions. [2023-08-30 13:07:03,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 108.3529411764706) internal successors, (1842), 17 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:03,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:03,290 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:03,291 INFO L175 Difference]: Start difference. First operand has 220 places, 136 transitions, 2664 flow. Second operand 17 states and 1842 transitions. [2023-08-30 13:07:03,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 148 transitions, 2957 flow [2023-08-30 13:07:03,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 148 transitions, 2833 flow, removed 17 selfloop flow, removed 11 redundant places. [2023-08-30 13:07:03,311 INFO L231 Difference]: Finished difference. Result has 216 places, 115 transitions, 2131 flow [2023-08-30 13:07:03,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2459, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2131, PETRI_PLACES=216, PETRI_TRANSITIONS=115} [2023-08-30 13:07:03,312 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 187 predicate places. [2023-08-30 13:07:03,312 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 115 transitions, 2131 flow [2023-08-30 13:07:03,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:03,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:03,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:03,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-30 13:07:03,313 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:03,313 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:03,313 INFO L85 PathProgramCache]: Analyzing trace with hash -960417119, now seen corresponding path program 11 times [2023-08-30 13:07:03,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:03,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913436266] [2023-08-30 13:07:03,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:03,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:03,882 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 13:07:03,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:03,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913436266] [2023-08-30 13:07:03,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913436266] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:03,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:03,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:03,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779746420] [2023-08-30 13:07:03,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:03,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:03,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:03,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:03,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:04,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 13:07:04,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 115 transitions, 2131 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:04,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:04,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 13:07:04,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:05,337 INFO L130 PetriNetUnfolder]: 49/218 cut-off events. [2023-08-30 13:07:05,337 INFO L131 PetriNetUnfolder]: For 3598/3598 co-relation queries the response was YES. [2023-08-30 13:07:05,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2039 conditions, 218 events. 49/218 cut-off events. For 3598/3598 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1272 event pairs, 13 based on Foata normal form. 6/224 useless extension candidates. Maximal degree in co-relation 1968. Up to 53 conditions per place. [2023-08-30 13:07:05,339 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 57 selfloop transitions, 56 changer transitions 20/133 dead transitions. [2023-08-30 13:07:05,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 133 transitions, 2466 flow [2023-08-30 13:07:05,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-30 13:07:05,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-30 13:07:05,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3017 transitions. [2023-08-30 13:07:05,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41926070038910507 [2023-08-30 13:07:05,344 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3017 transitions. [2023-08-30 13:07:05,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3017 transitions. [2023-08-30 13:07:05,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:05,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3017 transitions. [2023-08-30 13:07:05,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 107.75) internal successors, (3017), 28 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:05,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 257.0) internal successors, (7453), 29 states have internal predecessors, (7453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:05,353 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 257.0) internal successors, (7453), 29 states have internal predecessors, (7453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:05,353 INFO L175 Difference]: Start difference. First operand has 216 places, 115 transitions, 2131 flow. Second operand 28 states and 3017 transitions. [2023-08-30 13:07:05,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 133 transitions, 2466 flow [2023-08-30 13:07:05,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 133 transitions, 2235 flow, removed 19 selfloop flow, removed 22 redundant places. [2023-08-30 13:07:05,369 INFO L231 Difference]: Finished difference. Result has 212 places, 102 transitions, 1753 flow [2023-08-30 13:07:05,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1829, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1753, PETRI_PLACES=212, PETRI_TRANSITIONS=102} [2023-08-30 13:07:05,369 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 183 predicate places. [2023-08-30 13:07:05,370 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 102 transitions, 1753 flow [2023-08-30 13:07:05,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:05,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:05,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:05,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-30 13:07:05,370 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 13:07:05,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:05,371 INFO L85 PathProgramCache]: Analyzing trace with hash 749006897, now seen corresponding path program 12 times [2023-08-30 13:07:05,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:05,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884941366] [2023-08-30 13:07:05,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:05,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:06,100 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 13:07:06,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:06,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884941366] [2023-08-30 13:07:06,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884941366] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:06,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:06,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:06,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368652731] [2023-08-30 13:07:06,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:06,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:06,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:06,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:06,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:06,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 13:07:06,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 102 transitions, 1753 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:06,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:06,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 13:07:06,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:07,371 INFO L130 PetriNetUnfolder]: 40/184 cut-off events. [2023-08-30 13:07:07,371 INFO L131 PetriNetUnfolder]: For 2191/2191 co-relation queries the response was YES. [2023-08-30 13:07:07,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1688 conditions, 184 events. 40/184 cut-off events. For 2191/2191 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1010 event pairs, 9 based on Foata normal form. 4/188 useless extension candidates. Maximal degree in co-relation 1626. Up to 50 conditions per place. [2023-08-30 13:07:07,372 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 43 selfloop transitions, 49 changer transitions 19/111 dead transitions. [2023-08-30 13:07:07,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 111 transitions, 1981 flow [2023-08-30 13:07:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 13:07:07,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 13:07:07,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2539 transitions. [2023-08-30 13:07:07,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41164072632944226 [2023-08-30 13:07:07,375 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2539 transitions. [2023-08-30 13:07:07,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2539 transitions. [2023-08-30 13:07:07,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:07,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2539 transitions. [2023-08-30 13:07:07,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 105.79166666666667) internal successors, (2539), 24 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:07,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 257.0) internal successors, (6425), 25 states have internal predecessors, (6425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:07,389 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 257.0) internal successors, (6425), 25 states have internal predecessors, (6425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:07,389 INFO L175 Difference]: Start difference. First operand has 212 places, 102 transitions, 1753 flow. Second operand 24 states and 2539 transitions. [2023-08-30 13:07:07,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 111 transitions, 1981 flow [2023-08-30 13:07:07,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 111 transitions, 1751 flow, removed 17 selfloop flow, removed 27 redundant places. [2023-08-30 13:07:07,400 INFO L231 Difference]: Finished difference. Result has 195 places, 81 transitions, 1294 flow [2023-08-30 13:07:07,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1483, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1294, PETRI_PLACES=195, PETRI_TRANSITIONS=81} [2023-08-30 13:07:07,401 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 166 predicate places. [2023-08-30 13:07:07,401 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 81 transitions, 1294 flow [2023-08-30 13:07:07,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:07,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:07,402 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:07,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-30 13:07:07,402 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:07,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:07,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1930078246, now seen corresponding path program 9 times [2023-08-30 13:07:07,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:07,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864092424] [2023-08-30 13:07:07,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:07,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:07,930 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 13:07:07,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:07,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864092424] [2023-08-30 13:07:07,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864092424] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:07,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:07,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:07,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443898749] [2023-08-30 13:07:07,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:07,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:07,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:07,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:07,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:08,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 13:07:08,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 81 transitions, 1294 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:08,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:08,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 13:07:08,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:08,823 INFO L130 PetriNetUnfolder]: 32/149 cut-off events. [2023-08-30 13:07:08,823 INFO L131 PetriNetUnfolder]: For 1437/1437 co-relation queries the response was YES. [2023-08-30 13:07:08,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1336 conditions, 149 events. 32/149 cut-off events. For 1437/1437 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 751 event pairs, 10 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 1304. Up to 103 conditions per place. [2023-08-30 13:07:08,824 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 51 selfloop transitions, 27 changer transitions 6/84 dead transitions. [2023-08-30 13:07:08,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 84 transitions, 1458 flow [2023-08-30 13:07:08,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:07:08,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:07:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1169 transitions. [2023-08-30 13:07:08,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41351255748142907 [2023-08-30 13:07:08,825 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1169 transitions. [2023-08-30 13:07:08,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1169 transitions. [2023-08-30 13:07:08,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:08,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1169 transitions. [2023-08-30 13:07:08,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 106.27272727272727) internal successors, (1169), 11 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:08,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:08,828 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:08,828 INFO L175 Difference]: Start difference. First operand has 195 places, 81 transitions, 1294 flow. Second operand 11 states and 1169 transitions. [2023-08-30 13:07:08,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 84 transitions, 1458 flow [2023-08-30 13:07:08,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 84 transitions, 1219 flow, removed 6 selfloop flow, removed 44 redundant places. [2023-08-30 13:07:08,833 INFO L231 Difference]: Finished difference. Result has 153 places, 77 transitions, 1043 flow [2023-08-30 13:07:08,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1043, PETRI_PLACES=153, PETRI_TRANSITIONS=77} [2023-08-30 13:07:08,833 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 124 predicate places. [2023-08-30 13:07:08,833 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 77 transitions, 1043 flow [2023-08-30 13:07:08,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:08,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:08,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:08,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-30 13:07:08,834 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 13:07:08,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:08,834 INFO L85 PathProgramCache]: Analyzing trace with hash 383374533, now seen corresponding path program 13 times [2023-08-30 13:07:08,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:08,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599013525] [2023-08-30 13:07:08,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:08,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:09,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:09,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:09,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599013525] [2023-08-30 13:07:09,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599013525] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:09,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:09,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:09,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277675775] [2023-08-30 13:07:09,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:09,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:09,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:09,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:10,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 13:07:10,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 77 transitions, 1043 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:10,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:10,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 13:07:10,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:10,922 INFO L130 PetriNetUnfolder]: 31/140 cut-off events. [2023-08-30 13:07:10,922 INFO L131 PetriNetUnfolder]: For 929/929 co-relation queries the response was YES. [2023-08-30 13:07:10,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 140 events. 31/140 cut-off events. For 929/929 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 676 event pairs, 8 based on Foata normal form. 2/142 useless extension candidates. Maximal degree in co-relation 1132. Up to 46 conditions per place. [2023-08-30 13:07:10,923 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 33 selfloop transitions, 51 changer transitions 0/84 dead transitions. [2023-08-30 13:07:10,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 84 transitions, 1228 flow [2023-08-30 13:07:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 13:07:10,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 13:07:10,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2366 transitions. [2023-08-30 13:07:10,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41846480367881145 [2023-08-30 13:07:10,925 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2366 transitions. [2023-08-30 13:07:10,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2366 transitions. [2023-08-30 13:07:10,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:10,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2366 transitions. [2023-08-30 13:07:10,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 107.54545454545455) internal successors, (2366), 22 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:10,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 257.0) internal successors, (5911), 23 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:10,929 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 257.0) internal successors, (5911), 23 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:10,929 INFO L175 Difference]: Start difference. First operand has 153 places, 77 transitions, 1043 flow. Second operand 22 states and 2366 transitions. [2023-08-30 13:07:10,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 84 transitions, 1228 flow [2023-08-30 13:07:10,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 84 transitions, 1155 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-08-30 13:07:10,935 INFO L231 Difference]: Finished difference. Result has 160 places, 76 transitions, 1052 flow [2023-08-30 13:07:10,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1052, PETRI_PLACES=160, PETRI_TRANSITIONS=76} [2023-08-30 13:07:10,935 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 131 predicate places. [2023-08-30 13:07:10,935 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 76 transitions, 1052 flow [2023-08-30 13:07:10,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:10,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:10,936 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:10,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-30 13:07:10,936 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:10,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:10,937 INFO L85 PathProgramCache]: Analyzing trace with hash 380808662, now seen corresponding path program 10 times [2023-08-30 13:07:10,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:10,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121362176] [2023-08-30 13:07:10,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:10,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:11,489 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 13:07:11,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:11,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121362176] [2023-08-30 13:07:11,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121362176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:11,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:11,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:07:11,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958353277] [2023-08-30 13:07:11,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:11,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:07:11,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:11,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:07:11,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:07:12,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-08-30 13:07:12,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 76 transitions, 1052 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:12,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:12,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-08-30 13:07:12,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:12,949 INFO L130 PetriNetUnfolder]: 26/125 cut-off events. [2023-08-30 13:07:12,949 INFO L131 PetriNetUnfolder]: For 891/891 co-relation queries the response was YES. [2023-08-30 13:07:12,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 125 events. 26/125 cut-off events. For 891/891 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 590 event pairs, 3 based on Foata normal form. 10/135 useless extension candidates. Maximal degree in co-relation 947. Up to 33 conditions per place. [2023-08-30 13:07:12,950 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 21 selfloop transitions, 22 changer transitions 39/82 dead transitions. [2023-08-30 13:07:12,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 82 transitions, 1122 flow [2023-08-30 13:07:12,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 13:07:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 13:07:12,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1961 transitions. [2023-08-30 13:07:12,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42390834414180717 [2023-08-30 13:07:12,951 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1961 transitions. [2023-08-30 13:07:12,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1961 transitions. [2023-08-30 13:07:12,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:12,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1961 transitions. [2023-08-30 13:07:12,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 108.94444444444444) internal successors, (1961), 18 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:12,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:12,955 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:12,955 INFO L175 Difference]: Start difference. First operand has 160 places, 76 transitions, 1052 flow. Second operand 18 states and 1961 transitions. [2023-08-30 13:07:12,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 82 transitions, 1122 flow [2023-08-30 13:07:12,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 82 transitions, 988 flow, removed 3 selfloop flow, removed 22 redundant places. [2023-08-30 13:07:12,958 INFO L231 Difference]: Finished difference. Result has 149 places, 39 transitions, 440 flow [2023-08-30 13:07:12,958 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=440, PETRI_PLACES=149, PETRI_TRANSITIONS=39} [2023-08-30 13:07:12,958 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 120 predicate places. [2023-08-30 13:07:12,958 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 39 transitions, 440 flow [2023-08-30 13:07:12,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:12,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:12,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:12,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-30 13:07:12,959 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:12,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:12,959 INFO L85 PathProgramCache]: Analyzing trace with hash 374437233, now seen corresponding path program 14 times [2023-08-30 13:07:12,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:12,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860275454] [2023-08-30 13:07:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:12,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:13,523 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 13:07:13,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:13,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860275454] [2023-08-30 13:07:13,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860275454] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:13,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:13,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:13,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974883763] [2023-08-30 13:07:13,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:13,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:13,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:13,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:13,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:13,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 13:07:13,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 39 transitions, 440 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:13,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:13,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 13:07:13,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:14,351 INFO L130 PetriNetUnfolder]: 8/56 cut-off events. [2023-08-30 13:07:14,352 INFO L131 PetriNetUnfolder]: For 266/266 co-relation queries the response was YES. [2023-08-30 13:07:14,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 56 events. 8/56 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 155 event pairs, 3 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 424. Up to 17 conditions per place. [2023-08-30 13:07:14,352 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 16 selfloop transitions, 17 changer transitions 8/41 dead transitions. [2023-08-30 13:07:14,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 41 transitions, 507 flow [2023-08-30 13:07:14,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:07:14,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:07:14,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1715 transitions. [2023-08-30 13:07:14,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4170719844357977 [2023-08-30 13:07:14,353 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1715 transitions. [2023-08-30 13:07:14,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1715 transitions. [2023-08-30 13:07:14,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:14,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1715 transitions. [2023-08-30 13:07:14,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 107.1875) internal successors, (1715), 16 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:14,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:14,357 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:14,357 INFO L175 Difference]: Start difference. First operand has 149 places, 39 transitions, 440 flow. Second operand 16 states and 1715 transitions. [2023-08-30 13:07:14,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 41 transitions, 507 flow [2023-08-30 13:07:14,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 41 transitions, 396 flow, removed 1 selfloop flow, removed 29 redundant places. [2023-08-30 13:07:14,358 INFO L231 Difference]: Finished difference. Result has 107 places, 30 transitions, 312 flow [2023-08-30 13:07:14,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=312, PETRI_PLACES=107, PETRI_TRANSITIONS=30} [2023-08-30 13:07:14,359 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 78 predicate places. [2023-08-30 13:07:14,359 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 30 transitions, 312 flow [2023-08-30 13:07:14,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:14,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:14,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:14,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-30 13:07:14,360 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:14,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:14,360 INFO L85 PathProgramCache]: Analyzing trace with hash -187843776, now seen corresponding path program 11 times [2023-08-30 13:07:14,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:14,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5247086] [2023-08-30 13:07:14,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:14,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:14,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:14,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:14,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5247086] [2023-08-30 13:07:14,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5247086] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:14,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:14,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:07:14,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003311958] [2023-08-30 13:07:14,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:14,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:07:14,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:14,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:07:14,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:07:15,128 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 257 [2023-08-30 13:07:15,129 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 30 transitions, 312 flow. Second operand has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:15,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 257 [2023-08-30 13:07:15,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:15,377 INFO L130 PetriNetUnfolder]: 7/50 cut-off events. [2023-08-30 13:07:15,377 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-08-30 13:07:15,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 50 events. 7/50 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 141 event pairs, 3 based on Foata normal form. 2/52 useless extension candidates. Maximal degree in co-relation 368. Up to 16 conditions per place. [2023-08-30 13:07:15,377 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 16 selfloop transitions, 13 changer transitions 6/35 dead transitions. [2023-08-30 13:07:15,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 35 transitions, 408 flow [2023-08-30 13:07:15,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:07:15,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:07:15,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1092 transitions. [2023-08-30 13:07:15,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42490272373540855 [2023-08-30 13:07:15,378 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1092 transitions. [2023-08-30 13:07:15,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1092 transitions. [2023-08-30 13:07:15,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:15,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1092 transitions. [2023-08-30 13:07:15,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 109.2) internal successors, (1092), 10 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,381 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,381 INFO L175 Difference]: Start difference. First operand has 107 places, 30 transitions, 312 flow. Second operand 10 states and 1092 transitions. [2023-08-30 13:07:15,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 35 transitions, 408 flow [2023-08-30 13:07:15,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 35 transitions, 355 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-08-30 13:07:15,382 INFO L231 Difference]: Finished difference. Result has 92 places, 28 transitions, 283 flow [2023-08-30 13:07:15,382 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=283, PETRI_PLACES=92, PETRI_TRANSITIONS=28} [2023-08-30 13:07:15,382 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 63 predicate places. [2023-08-30 13:07:15,383 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 28 transitions, 283 flow [2023-08-30 13:07:15,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:15,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:15,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-30 13:07:15,383 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:15,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:15,383 INFO L85 PathProgramCache]: Analyzing trace with hash 310857564, now seen corresponding path program 12 times [2023-08-30 13:07:15,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:15,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516875154] [2023-08-30 13:07:15,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:15,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:15,666 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 13:07:15,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:15,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516875154] [2023-08-30 13:07:15,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516875154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:15,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:15,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:07:15,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57596148] [2023-08-30 13:07:15,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:15,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:07:15,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:15,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:07:15,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:07:16,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:07:16,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 28 transitions, 283 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:16,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:16,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:07:16,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:16,288 INFO L130 PetriNetUnfolder]: 6/53 cut-off events. [2023-08-30 13:07:16,288 INFO L131 PetriNetUnfolder]: For 185/185 co-relation queries the response was YES. [2023-08-30 13:07:16,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 53 events. 6/53 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 172 event pairs, 4 based on Foata normal form. 4/57 useless extension candidates. Maximal degree in co-relation 388. Up to 22 conditions per place. [2023-08-30 13:07:16,288 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 16 selfloop transitions, 15 changer transitions 3/34 dead transitions. [2023-08-30 13:07:16,289 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 34 transitions, 398 flow [2023-08-30 13:07:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:07:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:07:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1021 transitions. [2023-08-30 13:07:16,290 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4414180717682663 [2023-08-30 13:07:16,290 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1021 transitions. [2023-08-30 13:07:16,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1021 transitions. [2023-08-30 13:07:16,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:16,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1021 transitions. [2023-08-30 13:07:16,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.44444444444444) internal successors, (1021), 9 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:16,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:16,291 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:16,292 INFO L175 Difference]: Start difference. First operand has 92 places, 28 transitions, 283 flow. Second operand 9 states and 1021 transitions. [2023-08-30 13:07:16,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 34 transitions, 398 flow [2023-08-30 13:07:16,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 34 transitions, 364 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-30 13:07:16,293 INFO L231 Difference]: Finished difference. Result has 92 places, 28 transitions, 323 flow [2023-08-30 13:07:16,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=323, PETRI_PLACES=92, PETRI_TRANSITIONS=28} [2023-08-30 13:07:16,294 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 63 predicate places. [2023-08-30 13:07:16,294 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 28 transitions, 323 flow [2023-08-30 13:07:16,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:16,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:16,294 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:16,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-30 13:07:16,294 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 13:07:16,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:16,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1181674323, now seen corresponding path program 15 times [2023-08-30 13:07:16,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:16,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796548668] [2023-08-30 13:07:16,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:16,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:16,835 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 13:07:16,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:16,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796548668] [2023-08-30 13:07:16,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796548668] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:16,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:16,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:07:16,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091785674] [2023-08-30 13:07:16,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:16,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:07:16,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:16,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:07:16,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:07:17,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 13:07:17,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 28 transitions, 323 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:17,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:17,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 13:07:17,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:17,799 INFO L130 PetriNetUnfolder]: 3/39 cut-off events. [2023-08-30 13:07:17,799 INFO L131 PetriNetUnfolder]: For 194/194 co-relation queries the response was YES. [2023-08-30 13:07:17,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 39 events. 3/39 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 94 event pairs, 2 based on Foata normal form. 6/45 useless extension candidates. Maximal degree in co-relation 276. Up to 18 conditions per place. [2023-08-30 13:07:17,799 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 12 selfloop transitions, 15 changer transitions 3/30 dead transitions. [2023-08-30 13:07:17,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 30 transitions, 353 flow [2023-08-30 13:07:17,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:07:17,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:07:17,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1390 transitions. [2023-08-30 13:07:17,801 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4160431008680036 [2023-08-30 13:07:17,801 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1390 transitions. [2023-08-30 13:07:17,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1390 transitions. [2023-08-30 13:07:17,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:17,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1390 transitions. [2023-08-30 13:07:17,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.92307692307692) internal successors, (1390), 13 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:17,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:17,805 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:17,805 INFO L175 Difference]: Start difference. First operand has 92 places, 28 transitions, 323 flow. Second operand 13 states and 1390 transitions. [2023-08-30 13:07:17,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 30 transitions, 353 flow [2023-08-30 13:07:17,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 30 transitions, 301 flow, removed 3 selfloop flow, removed 11 redundant places. [2023-08-30 13:07:17,807 INFO L231 Difference]: Finished difference. Result has 80 places, 24 transitions, 234 flow [2023-08-30 13:07:17,807 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=234, PETRI_PLACES=80, PETRI_TRANSITIONS=24} [2023-08-30 13:07:17,807 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 51 predicate places. [2023-08-30 13:07:17,808 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 24 transitions, 234 flow [2023-08-30 13:07:17,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:17,808 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:17,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:17,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-30 13:07:17,808 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 13:07:17,809 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:17,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1181674322, now seen corresponding path program 13 times [2023-08-30 13:07:17,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:17,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832947864] [2023-08-30 13:07:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:17,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:18,086 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 13:07:18,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:18,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832947864] [2023-08-30 13:07:18,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832947864] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:18,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:18,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:07:18,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367429223] [2023-08-30 13:07:18,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:18,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:07:18,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:18,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:07:18,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:07:18,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 13:07:18,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 24 transitions, 234 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:18,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:18,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 13:07:18,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:18,607 INFO L130 PetriNetUnfolder]: 0/25 cut-off events. [2023-08-30 13:07:18,607 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2023-08-30 13:07:18,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 25 events. 0/25 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 6/31 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-08-30 13:07:18,607 INFO L137 encePairwiseOnDemand]: 249/257 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-08-30 13:07:18,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 21 transitions, 206 flow [2023-08-30 13:07:18,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:07:18,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:07:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1014 transitions. [2023-08-30 13:07:18,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4383916990920882 [2023-08-30 13:07:18,608 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1014 transitions. [2023-08-30 13:07:18,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1014 transitions. [2023-08-30 13:07:18,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:18,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1014 transitions. [2023-08-30 13:07:18,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.66666666666667) internal successors, (1014), 9 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:18,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:18,611 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:18,611 INFO L175 Difference]: Start difference. First operand has 80 places, 24 transitions, 234 flow. Second operand 9 states and 1014 transitions. [2023-08-30 13:07:18,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 21 transitions, 206 flow [2023-08-30 13:07:18,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 21 transitions, 142 flow, removed 3 selfloop flow, removed 16 redundant places. [2023-08-30 13:07:18,611 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-08-30 13:07:18,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-08-30 13:07:18,611 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 18 predicate places. [2023-08-30 13:07:18,612 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-08-30 13:07:18,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:18,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-08-30 13:07:18,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-08-30 13:07:18,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-08-30 13:07:18,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-08-30 13:07:18,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-08-30 13:07:18,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-08-30 13:07:18,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-08-30 13:07:18,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-08-30 13:07:18,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-30 13:07:18,618 INFO L445 BasicCegarLoop]: Path program histogram: [15, 13, 6, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2023-08-30 13:07:18,622 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:07:18,622 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:07:18,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:07:18 BasicIcfg [2023-08-30 13:07:18,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:07:18,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:07:18,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:07:18,626 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:07:18,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:01" (3/4) ... [2023-08-30 13:07:18,628 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:07:18,633 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-30 13:07:18,637 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-30 13:07:18,637 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 13:07:18,637 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:07:18,638 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:07:18,665 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:07:18,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:07:18,666 INFO L158 Benchmark]: Toolchain (without parser) took 79211.42ms. Allocated memory was 67.1MB in the beginning and 497.0MB in the end (delta: 429.9MB). Free memory was 37.6MB in the beginning and 173.9MB in the end (delta: -136.4MB). Peak memory consumption was 294.4MB. Max. memory is 16.1GB. [2023-08-30 13:07:18,666 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:07:18,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1085.58ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 37.4MB in the beginning and 48.6MB in the end (delta: -11.1MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-08-30 13:07:18,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.73ms. Allocated memory is still 90.2MB. Free memory was 48.6MB in the beginning and 45.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:07:18,667 INFO L158 Benchmark]: Boogie Preprocessor took 62.65ms. Allocated memory is still 90.2MB. Free memory was 45.2MB in the beginning and 42.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:07:18,667 INFO L158 Benchmark]: RCFGBuilder took 654.59ms. Allocated memory is still 90.2MB. Free memory was 42.3MB in the beginning and 44.0MB in the end (delta: -1.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2023-08-30 13:07:18,667 INFO L158 Benchmark]: TraceAbstraction took 77271.82ms. Allocated memory was 90.2MB in the beginning and 497.0MB in the end (delta: 406.8MB). Free memory was 43.1MB in the beginning and 177.1MB in the end (delta: -134.0MB). Peak memory consumption was 272.1MB. Max. memory is 16.1GB. [2023-08-30 13:07:18,668 INFO L158 Benchmark]: Witness Printer took 40.22ms. Allocated memory is still 497.0MB. Free memory was 177.1MB in the beginning and 173.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:07:18,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1085.58ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 37.4MB in the beginning and 48.6MB in the end (delta: -11.1MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.73ms. Allocated memory is still 90.2MB. Free memory was 48.6MB in the beginning and 45.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.65ms. Allocated memory is still 90.2MB. Free memory was 45.2MB in the beginning and 42.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.59ms. Allocated memory is still 90.2MB. Free memory was 42.3MB in the beginning and 44.0MB in the end (delta: -1.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * TraceAbstraction took 77271.82ms. Allocated memory was 90.2MB in the beginning and 497.0MB in the end (delta: 406.8MB). Free memory was 43.1MB in the beginning and 177.1MB in the end (delta: -134.0MB). Peak memory consumption was 272.1MB. Max. memory is 16.1GB. * Witness Printer took 40.22ms. Allocated memory is still 497.0MB. Free memory was 177.1MB in the beginning and 173.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.6s, 122 PlacesBefore, 29 PlacesAfterwards, 117 TransitionsBefore, 23 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 5449 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2466, independent: 2270, independent conditional: 0, independent unconditional: 2270, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1470, independent: 1416, independent conditional: 0, independent unconditional: 1416, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2466, independent: 854, independent conditional: 0, independent unconditional: 854, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 1470, unknown conditional: 0, unknown unconditional: 1470] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 156 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 77.0s, OverallIterations: 53, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 43.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12677 SdHoareTripleChecker+Valid, 27.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10243 mSDsluCounter, 10003 SdHoareTripleChecker+Invalid, 23.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9459 mSDsCounter, 1733 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48686 IncrementalHoareTripleChecker+Invalid, 50419 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1733 mSolverCounterUnsat, 544 mSDtfsCounter, 48686 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 850 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 845 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1949 ImplicationChecksByTransitivity, 15.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4099occurred in iteration=36, InterpolantAutomatonStates: 677, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 26.2s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 8519 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 53 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:07:18,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE