./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.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 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 05:27:04,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 05:27:04,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 05:27:04,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 05:27:04,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 05:27:04,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 05:27:04,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 05:27:04,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 05:27:04,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 05:27:04,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 05:27:04,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 05:27:04,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 05:27:04,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 05:27:04,546 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 05:27:04,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 05:27:04,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 05:27:04,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 05:27:04,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 05:27:04,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 05:27:04,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 05:27:04,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 05:27:04,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 05:27:04,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 05:27:04,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 05:27:04,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 05:27:04,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 05:27:04,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 05:27:04,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 05:27:04,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 05:27:04,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 05:27:04,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 05:27:04,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 05:27:04,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 05:27:04,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 05:27:04,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 05:27:04,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 05:27:04,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 05:27:04,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 05:27:04,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 05:27:04,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 05:27:04,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 05:27:04,591 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 05:27:04,625 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 05:27:04,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 05:27:04,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 05:27:04,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 05:27:04,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 05:27:04,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 05:27:04,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 05:27:04,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 05:27:04,629 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 05:27:04,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 05:27:04,630 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 05:27:04,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 05:27:04,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 05:27:04,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 05:27:04,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 05:27:04,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 05:27:04,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 05:27:04,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 05:27:04,631 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 05:27:04,631 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 05:27:04,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 05:27:04,632 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 05:27:04,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 05:27:04,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 05:27:04,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 05:27:04,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 05:27:04,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:27:04,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 05:27:04,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 05:27:04,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 05:27:04,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 05:27:04,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 05:27:04,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 05:27:04,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 05:27:04,635 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 05:27:04,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 05:27:04,635 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 05:27:04,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 05:27:04,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 05:27:04,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 05:27:04,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 05:27:04,985 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 05:27:04,985 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 05:27:04,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2023-09-01 05:27:06,278 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 05:27:06,609 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 05:27:06,623 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2023-09-01 05:27:06,647 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b47c709b/13c62c8302024df98d42e9699cef29f8/FLAG78285b0c6 [2023-09-01 05:27:06,671 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b47c709b/13c62c8302024df98d42e9699cef29f8 [2023-09-01 05:27:06,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 05:27:06,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 05:27:06,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 05:27:06,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 05:27:06,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 05:27:06,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:27:06" (1/1) ... [2023-09-01 05:27:06,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624d7335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:06, skipping insertion in model container [2023-09-01 05:27:06,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 05:27:06" (1/1) ... [2023-09-01 05:27:06,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 05:27:06,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 05:27:06,864 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-09-01 05:27:07,409 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-3_2-container_of-global.i[75009,75022] [2023-09-01 05:27:07,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:27:07,455 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 05:27:07,466 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-09-01 05:27:07,503 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-3_2-container_of-global.i[75009,75022] [2023-09-01 05:27:07,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 05:27:07,652 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:27:07,653 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:27:07,653 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-09-01 05:27:07,659 INFO L208 MainTranslator]: Completed translation [2023-09-01 05:27:07,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07 WrapperNode [2023-09-01 05:27:07,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 05:27:07,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 05:27:07,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 05:27:07,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 05:27:07,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,721 INFO L138 Inliner]: procedures = 468, calls = 52, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 135 [2023-09-01 05:27:07,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 05:27:07,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 05:27:07,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 05:27:07,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 05:27:07,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,759 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 05:27:07,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 05:27:07,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 05:27:07,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 05:27:07,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (1/1) ... [2023-09-01 05:27:07,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 05:27:07,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 05:27:07,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 05:27:07,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 05:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-01 05:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 05:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-01 05:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 05:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 05:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-01 05:27:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 05:27:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 05:27:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-09-01 05:27:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-09-01 05:27:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 05:27:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 05:27:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 05:27:07,861 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 05:27:08,226 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 05:27:08,228 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 05:27:08,511 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 05:27:08,539 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 05:27:08,539 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 05:27:08,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:27:08 BoogieIcfgContainer [2023-09-01 05:27:08,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 05:27:08,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 05:27:08,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 05:27:08,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 05:27:08,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 05:27:06" (1/3) ... [2023-09-01 05:27:08,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5965daad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:27:08, skipping insertion in model container [2023-09-01 05:27:08,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 05:27:07" (2/3) ... [2023-09-01 05:27:08,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5965daad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 05:27:08, skipping insertion in model container [2023-09-01 05:27:08,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:27:08" (3/3) ... [2023-09-01 05:27:08,550 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2023-09-01 05:27:08,558 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 05:27:08,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 05:27:08,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-09-01 05:27:08,568 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 05:27:08,642 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 05:27:08,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 164 transitions, 344 flow [2023-09-01 05:27:08,836 INFO L130 PetriNetUnfolder]: 10/200 cut-off events. [2023-09-01 05:27:08,836 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 05:27:08,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 200 events. 10/200 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 301 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 119. Up to 4 conditions per place. [2023-09-01 05:27:08,842 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 164 transitions, 344 flow [2023-09-01 05:27:08,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 134 transitions, 277 flow [2023-09-01 05:27:08,849 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 05:27:08,857 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 134 transitions, 277 flow [2023-09-01 05:27:08,859 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 134 transitions, 277 flow [2023-09-01 05:27:08,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 134 transitions, 277 flow [2023-09-01 05:27:08,882 INFO L130 PetriNetUnfolder]: 4/134 cut-off events. [2023-09-01 05:27:08,883 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 05:27:08,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 134 events. 4/134 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 120 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-09-01 05:27:08,885 INFO L119 LiptonReduction]: Number of co-enabled transitions 2288 [2023-09-01 05:27:15,218 INFO L134 LiptonReduction]: Checked pairs total: 6163 [2023-09-01 05:27:15,218 INFO L136 LiptonReduction]: Total number of compositions: 133 [2023-09-01 05:27:15,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 05:27:15,235 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;@848a53f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 05:27:15,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-09-01 05:27:15,239 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-09-01 05:27:15,240 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 05:27:15,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:15,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-09-01 05:27:15,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:15,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:15,246 INFO L85 PathProgramCache]: Analyzing trace with hash 16954422, now seen corresponding path program 1 times [2023-09-01 05:27:15,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:15,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384928325] [2023-09-01 05:27:15,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:15,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:16,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:16,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384928325] [2023-09-01 05:27:16,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384928325] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:16,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:16,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-01 05:27:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162737837] [2023-09-01 05:27:16,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:16,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-01 05:27:16,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:16,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-01 05:27:16,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-09-01 05:27:16,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2023-09-01 05:27:16,373 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,373 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:16,373 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2023-09-01 05:27:16,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:16,523 INFO L130 PetriNetUnfolder]: 108/209 cut-off events. [2023-09-01 05:27:16,523 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-09-01 05:27:16,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 209 events. 108/209 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 733 event pairs, 105 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 360. Up to 206 conditions per place. [2023-09-01 05:27:16,528 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 18 selfloop transitions, 5 changer transitions 0/23 dead transitions. [2023-09-01 05:27:16,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 101 flow [2023-09-01 05:27:16,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:27:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:27:16,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 546 transitions. [2023-09-01 05:27:16,551 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4595959595959596 [2023-09-01 05:27:16,552 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 546 transitions. [2023-09-01 05:27:16,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 546 transitions. [2023-09-01 05:27:16,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:16,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 546 transitions. [2023-09-01 05:27:16,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,570 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,571 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 57 flow. Second operand 4 states and 546 transitions. [2023-09-01 05:27:16,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 101 flow [2023-09-01 05:27:16,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:16,576 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 74 flow [2023-09-01 05:27:16,578 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=27, PETRI_TRANSITIONS=22} [2023-09-01 05:27:16,581 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -3 predicate places. [2023-09-01 05:27:16,582 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 74 flow [2023-09-01 05:27:16,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:16,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:16,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:27:16,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 05:27:16,583 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:16,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:16,584 INFO L85 PathProgramCache]: Analyzing trace with hash 525591541, now seen corresponding path program 1 times [2023-09-01 05:27:16,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:16,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254096119] [2023-09-01 05:27:16,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:16,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:17,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:17,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:17,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254096119] [2023-09-01 05:27:17,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254096119] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:17,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:17,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:27:17,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750562669] [2023-09-01 05:27:17,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:17,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:27:17,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:17,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:27:17,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:27:17,240 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2023-09-01 05:27:17,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:17,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2023-09-01 05:27:17,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:17,398 INFO L130 PetriNetUnfolder]: 140/263 cut-off events. [2023-09-01 05:27:17,398 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-09-01 05:27:17,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 263 events. 140/263 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1009 event pairs, 43 based on Foata normal form. 11/223 useless extension candidates. Maximal degree in co-relation 406. Up to 112 conditions per place. [2023-09-01 05:27:17,400 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 29 selfloop transitions, 10 changer transitions 4/43 dead transitions. [2023-09-01 05:27:17,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 43 transitions, 216 flow [2023-09-01 05:27:17,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:27:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:27:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 559 transitions. [2023-09-01 05:27:17,403 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47053872053872053 [2023-09-01 05:27:17,403 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 559 transitions. [2023-09-01 05:27:17,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 559 transitions. [2023-09-01 05:27:17,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:17,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 559 transitions. [2023-09-01 05:27:17,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 139.75) internal successors, (559), 4 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,408 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,409 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 74 flow. Second operand 4 states and 559 transitions. [2023-09-01 05:27:17,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 43 transitions, 216 flow [2023-09-01 05:27:17,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 43 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-09-01 05:27:17,411 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 128 flow [2023-09-01 05:27:17,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-09-01 05:27:17,412 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2023-09-01 05:27:17,412 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 128 flow [2023-09-01 05:27:17,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:17,413 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-09-01 05:27:17,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 05:27:17,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:17,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash 525589681, now seen corresponding path program 2 times [2023-09-01 05:27:17,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:17,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729448347] [2023-09-01 05:27:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:17,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:17,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:17,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:17,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729448347] [2023-09-01 05:27:17,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729448347] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:17,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:17,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:27:17,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092359907] [2023-09-01 05:27:17,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:17,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:27:17,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:17,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:27:17,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:27:17,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2023-09-01 05:27:17,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:17,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:17,942 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2023-09-01 05:27:17,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:18,078 INFO L130 PetriNetUnfolder]: 126/238 cut-off events. [2023-09-01 05:27:18,078 INFO L131 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2023-09-01 05:27:18,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 238 events. 126/238 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 895 event pairs, 33 based on Foata normal form. 3/193 useless extension candidates. Maximal degree in co-relation 417. Up to 93 conditions per place. [2023-09-01 05:27:18,081 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 30 selfloop transitions, 11 changer transitions 2/43 dead transitions. [2023-09-01 05:27:18,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 269 flow [2023-09-01 05:27:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:27:18,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:27:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 557 transitions. [2023-09-01 05:27:18,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46885521885521886 [2023-09-01 05:27:18,084 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 557 transitions. [2023-09-01 05:27:18,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 557 transitions. [2023-09-01 05:27:18,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:18,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 557 transitions. [2023-09-01 05:27:18,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 139.25) internal successors, (557), 4 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,089 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,089 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 128 flow. Second operand 4 states and 557 transitions. [2023-09-01 05:27:18,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 269 flow [2023-09-01 05:27:18,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:18,092 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 166 flow [2023-09-01 05:27:18,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-09-01 05:27:18,093 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-09-01 05:27:18,094 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 166 flow [2023-09-01 05:27:18,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:18,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 05:27:18,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 05:27:18,102 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:18,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:18,103 INFO L85 PathProgramCache]: Analyzing trace with hash -886633492, now seen corresponding path program 1 times [2023-09-01 05:27:18,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:18,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822434920] [2023-09-01 05:27:18,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:18,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:18,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:18,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822434920] [2023-09-01 05:27:18,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822434920] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:18,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:18,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-01 05:27:18,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720849980] [2023-09-01 05:27:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:18,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:27:18,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:27:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:27:18,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2023-09-01 05:27:18,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:18,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2023-09-01 05:27:18,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:18,689 INFO L130 PetriNetUnfolder]: 96/188 cut-off events. [2023-09-01 05:27:18,689 INFO L131 PetriNetUnfolder]: For 285/285 co-relation queries the response was YES. [2023-09-01 05:27:18,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 188 events. 96/188 cut-off events. For 285/285 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 637 event pairs, 35 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 338. Up to 89 conditions per place. [2023-09-01 05:27:18,691 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 28 selfloop transitions, 11 changer transitions 2/41 dead transitions. [2023-09-01 05:27:18,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 301 flow [2023-09-01 05:27:18,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:27:18,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:27:18,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 553 transitions. [2023-09-01 05:27:18,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4654882154882155 [2023-09-01 05:27:18,694 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 553 transitions. [2023-09-01 05:27:18,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 553 transitions. [2023-09-01 05:27:18,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:18,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 553 transitions. [2023-09-01 05:27:18,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 138.25) internal successors, (553), 4 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,699 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,699 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 166 flow. Second operand 4 states and 553 transitions. [2023-09-01 05:27:18,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 301 flow [2023-09-01 05:27:18,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 282 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:18,702 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 213 flow [2023-09-01 05:27:18,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=213, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2023-09-01 05:27:18,703 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2023-09-01 05:27:18,704 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 213 flow [2023-09-01 05:27:18,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.2) internal successors, (651), 5 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:18,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:18,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:18,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 05:27:18,705 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:18,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:18,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1714480928, now seen corresponding path program 1 times [2023-09-01 05:27:18,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:18,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303446427] [2023-09-01 05:27:18,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:18,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:19,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:19,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303446427] [2023-09-01 05:27:19,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303446427] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:19,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:19,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:19,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298531101] [2023-09-01 05:27:19,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:19,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:19,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:19,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:19,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:19,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2023-09-01 05:27:19,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:19,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2023-09-01 05:27:19,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:19,487 INFO L130 PetriNetUnfolder]: 84/168 cut-off events. [2023-09-01 05:27:19,487 INFO L131 PetriNetUnfolder]: For 456/456 co-relation queries the response was YES. [2023-09-01 05:27:19,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 168 events. 84/168 cut-off events. For 456/456 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 551 event pairs, 29 based on Foata normal form. 4/161 useless extension candidates. Maximal degree in co-relation 310. Up to 85 conditions per place. [2023-09-01 05:27:19,489 INFO L137 encePairwiseOnDemand]: 291/297 looper letters, 27 selfloop transitions, 11 changer transitions 2/40 dead transitions. [2023-09-01 05:27:19,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 327 flow [2023-09-01 05:27:19,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:27:19,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:27:19,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 551 transitions. [2023-09-01 05:27:19,491 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46380471380471383 [2023-09-01 05:27:19,491 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 551 transitions. [2023-09-01 05:27:19,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 551 transitions. [2023-09-01 05:27:19,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:19,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 551 transitions. [2023-09-01 05:27:19,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 137.75) internal successors, (551), 4 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,497 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,497 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 213 flow. Second operand 4 states and 551 transitions. [2023-09-01 05:27:19,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 327 flow [2023-09-01 05:27:19,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 313 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-09-01 05:27:19,502 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 242 flow [2023-09-01 05:27:19,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2023-09-01 05:27:19,504 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 12 predicate places. [2023-09-01 05:27:19,504 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 242 flow [2023-09-01 05:27:19,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:19,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:19,505 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:19,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 05:27:19,505 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:19,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:19,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1715832209, now seen corresponding path program 1 times [2023-09-01 05:27:19,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:19,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498735745] [2023-09-01 05:27:19,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:19,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:19,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:19,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:19,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498735745] [2023-09-01 05:27:19,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498735745] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:19,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:19,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:19,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15187170] [2023-09-01 05:27:19,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:19,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-01 05:27:19,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:19,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-01 05:27:19,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-09-01 05:27:20,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2023-09-01 05:27:20,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 128.16666666666666) internal successors, (769), 6 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:20,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2023-09-01 05:27:20,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:20,166 INFO L130 PetriNetUnfolder]: 72/148 cut-off events. [2023-09-01 05:27:20,167 INFO L131 PetriNetUnfolder]: For 549/549 co-relation queries the response was YES. [2023-09-01 05:27:20,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 591 conditions, 148 events. 72/148 cut-off events. For 549/549 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 449 event pairs, 23 based on Foata normal form. 4/145 useless extension candidates. Maximal degree in co-relation 301. Up to 81 conditions per place. [2023-09-01 05:27:20,169 INFO L137 encePairwiseOnDemand]: 291/297 looper letters, 24 selfloop transitions, 12 changer transitions 2/38 dead transitions. [2023-09-01 05:27:20,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 345 flow [2023-09-01 05:27:20,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-01 05:27:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-09-01 05:27:20,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 539 transitions. [2023-09-01 05:27:20,171 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2023-09-01 05:27:20,171 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 539 transitions. [2023-09-01 05:27:20,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 539 transitions. [2023-09-01 05:27:20,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:20,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 539 transitions. [2023-09-01 05:27:20,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,175 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 297.0) internal successors, (1485), 5 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,176 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 242 flow. Second operand 4 states and 539 transitions. [2023-09-01 05:27:20,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 345 flow [2023-09-01 05:27:20,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 38 transitions, 323 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-09-01 05:27:20,179 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 269 flow [2023-09-01 05:27:20,179 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2023-09-01 05:27:20,182 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2023-09-01 05:27:20,182 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 269 flow [2023-09-01 05:27:20,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.16666666666666) internal successors, (769), 6 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:20,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:20,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:20,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 05:27:20,183 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:20,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:20,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1641497079, now seen corresponding path program 1 times [2023-09-01 05:27:20,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:20,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690266436] [2023-09-01 05:27:20,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:20,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:20,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690266436] [2023-09-01 05:27:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690266436] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:20,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:20,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:20,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608008605] [2023-09-01 05:27:20,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:20,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:20,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:20,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:20,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:21,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-09-01 05:27:21,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 269 flow. Second operand has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:21,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-09-01 05:27:21,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:21,481 INFO L130 PetriNetUnfolder]: 89/189 cut-off events. [2023-09-01 05:27:21,481 INFO L131 PetriNetUnfolder]: For 639/639 co-relation queries the response was YES. [2023-09-01 05:27:21,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 189 events. 89/189 cut-off events. For 639/639 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 693 event pairs, 8 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 423. Up to 66 conditions per place. [2023-09-01 05:27:21,483 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 35 selfloop transitions, 26 changer transitions 7/68 dead transitions. [2023-09-01 05:27:21,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 555 flow [2023-09-01 05:27:21,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:21,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1447 transitions. [2023-09-01 05:27:21,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44291398836853385 [2023-09-01 05:27:21,488 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1447 transitions. [2023-09-01 05:27:21,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1447 transitions. [2023-09-01 05:27:21,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:21,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1447 transitions. [2023-09-01 05:27:21,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 131.54545454545453) internal successors, (1447), 11 states have internal predecessors, (1447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,496 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,497 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 269 flow. Second operand 11 states and 1447 transitions. [2023-09-01 05:27:21,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 555 flow [2023-09-01 05:27:21,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 529 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-09-01 05:27:21,500 INFO L231 Difference]: Finished difference. Result has 54 places, 41 transitions, 372 flow [2023-09-01 05:27:21,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=372, PETRI_PLACES=54, PETRI_TRANSITIONS=41} [2023-09-01 05:27:21,501 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2023-09-01 05:27:21,501 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 41 transitions, 372 flow [2023-09-01 05:27:21,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:21,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:21,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:21,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 05:27:21,502 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:21,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:21,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1647779230, now seen corresponding path program 1 times [2023-09-01 05:27:21,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:21,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700703475] [2023-09-01 05:27:21,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:21,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:21,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:21,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:21,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700703475] [2023-09-01 05:27:21,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700703475] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:21,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:21,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:21,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561037999] [2023-09-01 05:27:21,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:21,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:21,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:21,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:21,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:22,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-09-01 05:27:22,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 41 transitions, 372 flow. Second operand has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:22,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-09-01 05:27:22,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:22,520 INFO L130 PetriNetUnfolder]: 91/214 cut-off events. [2023-09-01 05:27:22,520 INFO L131 PetriNetUnfolder]: For 787/787 co-relation queries the response was YES. [2023-09-01 05:27:22,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 214 events. 91/214 cut-off events. For 787/787 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 892 event pairs, 6 based on Foata normal form. 6/218 useless extension candidates. Maximal degree in co-relation 674. Up to 51 conditions per place. [2023-09-01 05:27:22,522 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 44 selfloop transitions, 27 changer transitions 6/77 dead transitions. [2023-09-01 05:27:22,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 77 transitions, 651 flow [2023-09-01 05:27:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 05:27:22,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 05:27:22,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1704 transitions. [2023-09-01 05:27:22,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44133644133644134 [2023-09-01 05:27:22,529 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1704 transitions. [2023-09-01 05:27:22,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1704 transitions. [2023-09-01 05:27:22,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:22,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1704 transitions. [2023-09-01 05:27:22,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 131.07692307692307) internal successors, (1704), 13 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,543 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,544 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 372 flow. Second operand 13 states and 1704 transitions. [2023-09-01 05:27:22,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 77 transitions, 651 flow [2023-09-01 05:27:22,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 77 transitions, 576 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:22,548 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 409 flow [2023-09-01 05:27:22,549 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=409, PETRI_PLACES=62, PETRI_TRANSITIONS=46} [2023-09-01 05:27:22,550 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 32 predicate places. [2023-09-01 05:27:22,551 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 409 flow [2023-09-01 05:27:22,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:22,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:22,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:22,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 05:27:22,552 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:22,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:22,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1647753190, now seen corresponding path program 2 times [2023-09-01 05:27:22,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:22,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487293967] [2023-09-01 05:27:22,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:22,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:23,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:23,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:23,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487293967] [2023-09-01 05:27:23,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487293967] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:23,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:23,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:23,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202128638] [2023-09-01 05:27:23,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:23,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:23,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:23,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:23,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:23,437 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-09-01 05:27:23,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 46 transitions, 409 flow. Second operand has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:23,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-09-01 05:27:23,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:23,743 INFO L130 PetriNetUnfolder]: 88/208 cut-off events. [2023-09-01 05:27:23,743 INFO L131 PetriNetUnfolder]: For 667/667 co-relation queries the response was YES. [2023-09-01 05:27:23,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 907 conditions, 208 events. 88/208 cut-off events. For 667/667 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 853 event pairs, 8 based on Foata normal form. 3/209 useless extension candidates. Maximal degree in co-relation 740. Up to 70 conditions per place. [2023-09-01 05:27:23,746 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 34 selfloop transitions, 32 changer transitions 4/70 dead transitions. [2023-09-01 05:27:23,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 70 transitions, 625 flow [2023-09-01 05:27:23,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:23,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1443 transitions. [2023-09-01 05:27:23,750 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44168962350780533 [2023-09-01 05:27:23,750 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1443 transitions. [2023-09-01 05:27:23,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1443 transitions. [2023-09-01 05:27:23,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:23,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1443 transitions. [2023-09-01 05:27:23,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 131.1818181818182) internal successors, (1443), 11 states have internal predecessors, (1443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,758 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,759 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 409 flow. Second operand 11 states and 1443 transitions. [2023-09-01 05:27:23,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 70 transitions, 625 flow [2023-09-01 05:27:23,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 70 transitions, 555 flow, removed 7 selfloop flow, removed 9 redundant places. [2023-09-01 05:27:23,763 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 416 flow [2023-09-01 05:27:23,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=416, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2023-09-01 05:27:23,764 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 33 predicate places. [2023-09-01 05:27:23,764 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 416 flow [2023-09-01 05:27:23,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:23,765 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:23,765 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:23,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 05:27:23,765 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:23,765 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:23,766 INFO L85 PathProgramCache]: Analyzing trace with hash 345614619, now seen corresponding path program 2 times [2023-09-01 05:27:23,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:23,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412022450] [2023-09-01 05:27:23,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:23,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:24,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:24,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:24,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412022450] [2023-09-01 05:27:24,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412022450] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:24,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:24,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 05:27:24,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321468199] [2023-09-01 05:27:24,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:24,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:24,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:24,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:24,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:24,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2023-09-01 05:27:24,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 416 flow. Second operand has 7 states, 7 states have (on average 128.28571428571428) internal successors, (898), 7 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:24,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2023-09-01 05:27:24,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:24,938 INFO L130 PetriNetUnfolder]: 87/211 cut-off events. [2023-09-01 05:27:24,938 INFO L131 PetriNetUnfolder]: For 642/642 co-relation queries the response was YES. [2023-09-01 05:27:24,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 211 events. 87/211 cut-off events. For 642/642 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 886 event pairs, 13 based on Foata normal form. 9/216 useless extension candidates. Maximal degree in co-relation 735. Up to 53 conditions per place. [2023-09-01 05:27:24,940 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 41 selfloop transitions, 28 changer transitions 4/73 dead transitions. [2023-09-01 05:27:24,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 73 transitions, 617 flow [2023-09-01 05:27:24,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:24,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:24,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1589 transitions. [2023-09-01 05:27:24,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4458473625140292 [2023-09-01 05:27:24,945 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1589 transitions. [2023-09-01 05:27:24,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1589 transitions. [2023-09-01 05:27:24,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:24,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1589 transitions. [2023-09-01 05:27:24,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 132.41666666666666) internal successors, (1589), 12 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,955 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,956 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 416 flow. Second operand 12 states and 1589 transitions. [2023-09-01 05:27:24,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 73 transitions, 617 flow [2023-09-01 05:27:24,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 73 transitions, 532 flow, removed 6 selfloop flow, removed 12 redundant places. [2023-09-01 05:27:24,961 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 370 flow [2023-09-01 05:27:24,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=370, PETRI_PLACES=62, PETRI_TRANSITIONS=45} [2023-09-01 05:27:24,962 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 32 predicate places. [2023-09-01 05:27:24,962 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 370 flow [2023-09-01 05:27:24,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.28571428571428) internal successors, (898), 7 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:24,963 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:24,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:24,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 05:27:24,963 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:24,964 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:24,964 INFO L85 PathProgramCache]: Analyzing trace with hash 349063546, now seen corresponding path program 1 times [2023-09-01 05:27:24,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:24,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719879488] [2023-09-01 05:27:24,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:24,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:25,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:25,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719879488] [2023-09-01 05:27:25,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719879488] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:25,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:25,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:25,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104725339] [2023-09-01 05:27:25,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:25,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:27:25,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:25,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:27:25,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:27:25,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2023-09-01 05:27:25,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 45 transitions, 370 flow. Second operand has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:25,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2023-09-01 05:27:25,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:25,501 INFO L130 PetriNetUnfolder]: 89/225 cut-off events. [2023-09-01 05:27:25,501 INFO L131 PetriNetUnfolder]: For 471/471 co-relation queries the response was YES. [2023-09-01 05:27:25,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 861 conditions, 225 events. 89/225 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1002 event pairs, 15 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 736. Up to 68 conditions per place. [2023-09-01 05:27:25,503 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 37 selfloop transitions, 26 changer transitions 2/65 dead transitions. [2023-09-01 05:27:25,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 65 transitions, 566 flow [2023-09-01 05:27:25,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-09-01 05:27:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-09-01 05:27:25,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 840 transitions. [2023-09-01 05:27:25,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4713804713804714 [2023-09-01 05:27:25,506 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 840 transitions. [2023-09-01 05:27:25,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 840 transitions. [2023-09-01 05:27:25,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:25,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 840 transitions. [2023-09-01 05:27:25,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,512 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 297.0) internal successors, (2079), 7 states have internal predecessors, (2079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,513 INFO L175 Difference]: Start difference. First operand has 62 places, 45 transitions, 370 flow. Second operand 6 states and 840 transitions. [2023-09-01 05:27:25,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 65 transitions, 566 flow [2023-09-01 05:27:25,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 522 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:25,520 INFO L231 Difference]: Finished difference. Result has 64 places, 47 transitions, 435 flow [2023-09-01 05:27:25,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=435, PETRI_PLACES=64, PETRI_TRANSITIONS=47} [2023-09-01 05:27:25,520 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places. [2023-09-01 05:27:25,521 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 47 transitions, 435 flow [2023-09-01 05:27:25,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:25,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:25,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:25,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 05:27:25,522 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:25,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:25,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1648553690, now seen corresponding path program 3 times [2023-09-01 05:27:25,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:25,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393340423] [2023-09-01 05:27:25,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:25,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:26,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:26,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393340423] [2023-09-01 05:27:26,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393340423] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:26,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:26,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:26,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378078229] [2023-09-01 05:27:26,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:26,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:26,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:26,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:26,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:26,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-09-01 05:27:26,336 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 47 transitions, 435 flow. Second operand has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:26,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:26,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-09-01 05:27:26,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:26,644 INFO L130 PetriNetUnfolder]: 87/218 cut-off events. [2023-09-01 05:27:26,644 INFO L131 PetriNetUnfolder]: For 690/690 co-relation queries the response was YES. [2023-09-01 05:27:26,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 914 conditions, 218 events. 87/218 cut-off events. For 690/690 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 954 event pairs, 3 based on Foata normal form. 3/221 useless extension candidates. Maximal degree in co-relation 778. Up to 66 conditions per place. [2023-09-01 05:27:26,646 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 32 selfloop transitions, 32 changer transitions 4/68 dead transitions. [2023-09-01 05:27:26,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 68 transitions, 636 flow [2023-09-01 05:27:26,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1437 transitions. [2023-09-01 05:27:26,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4398530762167126 [2023-09-01 05:27:26,650 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1437 transitions. [2023-09-01 05:27:26,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1437 transitions. [2023-09-01 05:27:26,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:26,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1437 transitions. [2023-09-01 05:27:26,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 130.63636363636363) internal successors, (1437), 11 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:26,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:26,671 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:26,672 INFO L175 Difference]: Start difference. First operand has 64 places, 47 transitions, 435 flow. Second operand 11 states and 1437 transitions. [2023-09-01 05:27:26,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 68 transitions, 636 flow [2023-09-01 05:27:26,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 608 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:26,676 INFO L231 Difference]: Finished difference. Result has 74 places, 49 transitions, 524 flow [2023-09-01 05:27:26,677 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=524, PETRI_PLACES=74, PETRI_TRANSITIONS=49} [2023-09-01 05:27:26,677 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 44 predicate places. [2023-09-01 05:27:26,677 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 49 transitions, 524 flow [2023-09-01 05:27:26,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:26,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:26,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:26,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 05:27:26,679 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:26,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:26,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1648553691, now seen corresponding path program 3 times [2023-09-01 05:27:26,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:26,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793422215] [2023-09-01 05:27:26,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:26,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:27,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:27,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:27,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793422215] [2023-09-01 05:27:27,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793422215] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:27,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:27,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-01 05:27:27,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327091076] [2023-09-01 05:27:27,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:27,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-01 05:27:27,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:27,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-01 05:27:27,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-09-01 05:27:27,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2023-09-01 05:27:27,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 49 transitions, 524 flow. Second operand has 7 states, 7 states have (on average 128.28571428571428) internal successors, (898), 7 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:27,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2023-09-01 05:27:27,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:27,452 INFO L130 PetriNetUnfolder]: 85/211 cut-off events. [2023-09-01 05:27:27,452 INFO L131 PetriNetUnfolder]: For 905/905 co-relation queries the response was YES. [2023-09-01 05:27:27,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 970 conditions, 211 events. 85/211 cut-off events. For 905/905 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 908 event pairs, 14 based on Foata normal form. 3/214 useless extension candidates. Maximal degree in co-relation 847. Up to 61 conditions per place. [2023-09-01 05:27:27,454 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 33 selfloop transitions, 26 changer transitions 2/61 dead transitions. [2023-09-01 05:27:27,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 61 transitions, 666 flow [2023-09-01 05:27:27,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:27:27,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:27:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1056 transitions. [2023-09-01 05:27:27,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-09-01 05:27:27,458 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1056 transitions. [2023-09-01 05:27:27,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1056 transitions. [2023-09-01 05:27:27,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:27,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1056 transitions. [2023-09-01 05:27:27,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 132.0) internal successors, (1056), 8 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,464 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,465 INFO L175 Difference]: Start difference. First operand has 74 places, 49 transitions, 524 flow. Second operand 8 states and 1056 transitions. [2023-09-01 05:27:27,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 61 transitions, 666 flow [2023-09-01 05:27:27,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 61 transitions, 609 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-09-01 05:27:27,473 INFO L231 Difference]: Finished difference. Result has 74 places, 48 transitions, 508 flow [2023-09-01 05:27:27,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=508, PETRI_PLACES=74, PETRI_TRANSITIONS=48} [2023-09-01 05:27:27,474 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 44 predicate places. [2023-09-01 05:27:27,475 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 48 transitions, 508 flow [2023-09-01 05:27:27,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.28571428571428) internal successors, (898), 7 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:27,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:27,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:27,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-09-01 05:27:27,476 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:27,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:27,476 INFO L85 PathProgramCache]: Analyzing trace with hash 349063547, now seen corresponding path program 1 times [2023-09-01 05:27:27,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:27,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944035479] [2023-09-01 05:27:27,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:27,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:27,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:27,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:27,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944035479] [2023-09-01 05:27:27,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944035479] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:27,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:27,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:27,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704528160] [2023-09-01 05:27:27,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:27,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:27,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:27,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:27,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:28,105 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-09-01 05:27:28,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 48 transitions, 508 flow. Second operand has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:28,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-09-01 05:27:28,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:28,347 INFO L130 PetriNetUnfolder]: 82/216 cut-off events. [2023-09-01 05:27:28,348 INFO L131 PetriNetUnfolder]: For 989/989 co-relation queries the response was YES. [2023-09-01 05:27:28,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1001 conditions, 216 events. 82/216 cut-off events. For 989/989 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 963 event pairs, 23 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 931. Up to 124 conditions per place. [2023-09-01 05:27:28,349 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 37 selfloop transitions, 17 changer transitions 13/67 dead transitions. [2023-09-01 05:27:28,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 67 transitions, 741 flow [2023-09-01 05:27:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:27:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:27:28,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1179 transitions. [2023-09-01 05:27:28,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44107744107744107 [2023-09-01 05:27:28,353 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1179 transitions. [2023-09-01 05:27:28,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1179 transitions. [2023-09-01 05:27:28,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:28,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1179 transitions. [2023-09-01 05:27:28,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 131.0) internal successors, (1179), 9 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,360 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,360 INFO L175 Difference]: Start difference. First operand has 74 places, 48 transitions, 508 flow. Second operand 9 states and 1179 transitions. [2023-09-01 05:27:28,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 67 transitions, 741 flow [2023-09-01 05:27:28,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 67 transitions, 674 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:28,366 INFO L231 Difference]: Finished difference. Result has 76 places, 46 transitions, 470 flow [2023-09-01 05:27:28,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=470, PETRI_PLACES=76, PETRI_TRANSITIONS=46} [2023-09-01 05:27:28,369 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 46 predicate places. [2023-09-01 05:27:28,369 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 46 transitions, 470 flow [2023-09-01 05:27:28,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:28,370 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:28,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-09-01 05:27:28,370 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:28,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:28,371 INFO L85 PathProgramCache]: Analyzing trace with hash 348977056, now seen corresponding path program 2 times [2023-09-01 05:27:28,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:28,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226015659] [2023-09-01 05:27:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:28,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:28,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:28,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:28,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226015659] [2023-09-01 05:27:28,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226015659] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:28,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:28,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-01 05:27:28,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179162733] [2023-09-01 05:27:28,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:28,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-01 05:27:28,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:28,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-01 05:27:28,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-01 05:27:28,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2023-09-01 05:27:28,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 46 transitions, 470 flow. Second operand has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:28,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2023-09-01 05:27:28,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:28,809 INFO L130 PetriNetUnfolder]: 73/187 cut-off events. [2023-09-01 05:27:28,810 INFO L131 PetriNetUnfolder]: For 826/826 co-relation queries the response was YES. [2023-09-01 05:27:28,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 187 events. 73/187 cut-off events. For 826/826 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 763 event pairs, 16 based on Foata normal form. 2/189 useless extension candidates. Maximal degree in co-relation 802. Up to 62 conditions per place. [2023-09-01 05:27:28,811 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 37 selfloop transitions, 25 changer transitions 2/64 dead transitions. [2023-09-01 05:27:28,812 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 64 transitions, 654 flow [2023-09-01 05:27:28,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 05:27:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 05:27:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 974 transitions. [2023-09-01 05:27:28,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4684944684944685 [2023-09-01 05:27:28,814 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 974 transitions. [2023-09-01 05:27:28,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 974 transitions. [2023-09-01 05:27:28,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:28,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 974 transitions. [2023-09-01 05:27:28,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 139.14285714285714) internal successors, (974), 7 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,820 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,820 INFO L175 Difference]: Start difference. First operand has 76 places, 46 transitions, 470 flow. Second operand 7 states and 974 transitions. [2023-09-01 05:27:28,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 64 transitions, 654 flow [2023-09-01 05:27:28,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 64 transitions, 622 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:28,825 INFO L231 Difference]: Finished difference. Result has 76 places, 46 transitions, 495 flow [2023-09-01 05:27:28,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=495, PETRI_PLACES=76, PETRI_TRANSITIONS=46} [2023-09-01 05:27:28,825 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 46 predicate places. [2023-09-01 05:27:28,825 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 46 transitions, 495 flow [2023-09-01 05:27:28,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:28,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:28,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:28,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-09-01 05:27:28,826 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:28,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:28,827 INFO L85 PathProgramCache]: Analyzing trace with hash 348977057, now seen corresponding path program 2 times [2023-09-01 05:27:28,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:28,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009161849] [2023-09-01 05:27:28,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:28,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:29,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:29,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:29,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009161849] [2023-09-01 05:27:29,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009161849] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:29,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:29,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:29,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414336448] [2023-09-01 05:27:29,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:29,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:29,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:29,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:29,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:29,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-09-01 05:27:29,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 46 transitions, 495 flow. Second operand has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:29,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:29,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-09-01 05:27:29,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:29,888 INFO L130 PetriNetUnfolder]: 76/210 cut-off events. [2023-09-01 05:27:29,888 INFO L131 PetriNetUnfolder]: For 954/954 co-relation queries the response was YES. [2023-09-01 05:27:29,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1036 conditions, 210 events. 76/210 cut-off events. For 954/954 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 958 event pairs, 21 based on Foata normal form. 4/214 useless extension candidates. Maximal degree in co-relation 978. Up to 111 conditions per place. [2023-09-01 05:27:29,890 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 36 selfloop transitions, 22 changer transitions 18/76 dead transitions. [2023-09-01 05:27:29,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 76 transitions, 832 flow [2023-09-01 05:27:29,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-09-01 05:27:29,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-09-01 05:27:29,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1698 transitions. [2023-09-01 05:27:29,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4397824397824398 [2023-09-01 05:27:29,893 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1698 transitions. [2023-09-01 05:27:29,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1698 transitions. [2023-09-01 05:27:29,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:29,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1698 transitions. [2023-09-01 05:27:29,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 130.6153846153846) internal successors, (1698), 13 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:29,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:29,903 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 297.0) internal successors, (4158), 14 states have internal predecessors, (4158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:29,903 INFO L175 Difference]: Start difference. First operand has 76 places, 46 transitions, 495 flow. Second operand 13 states and 1698 transitions. [2023-09-01 05:27:29,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 76 transitions, 832 flow [2023-09-01 05:27:29,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 76 transitions, 800 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:29,908 INFO L231 Difference]: Finished difference. Result has 84 places, 46 transitions, 519 flow [2023-09-01 05:27:29,908 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=519, PETRI_PLACES=84, PETRI_TRANSITIONS=46} [2023-09-01 05:27:29,909 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 54 predicate places. [2023-09-01 05:27:29,909 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 46 transitions, 519 flow [2023-09-01 05:27:29,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:29,909 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:29,909 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:29,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-09-01 05:27:29,910 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:29,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:29,910 INFO L85 PathProgramCache]: Analyzing trace with hash 348951946, now seen corresponding path program 3 times [2023-09-01 05:27:29,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:29,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606932482] [2023-09-01 05:27:29,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:29,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:30,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:30,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:30,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606932482] [2023-09-01 05:27:30,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606932482] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:30,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:30,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:30,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718466264] [2023-09-01 05:27:30,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:30,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:30,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:30,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:30,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:30,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-09-01 05:27:30,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 46 transitions, 519 flow. Second operand has 8 states, 8 states have (on average 125.125) internal successors, (1001), 8 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:30,585 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-09-01 05:27:30,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:30,767 INFO L130 PetriNetUnfolder]: 47/136 cut-off events. [2023-09-01 05:27:30,767 INFO L131 PetriNetUnfolder]: For 758/758 co-relation queries the response was YES. [2023-09-01 05:27:30,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 729 conditions, 136 events. 47/136 cut-off events. For 758/758 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 507 event pairs, 16 based on Foata normal form. 2/138 useless extension candidates. Maximal degree in co-relation 632. Up to 72 conditions per place. [2023-09-01 05:27:30,769 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 34 selfloop transitions, 17 changer transitions 0/51 dead transitions. [2023-09-01 05:27:30,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 51 transitions, 625 flow [2023-09-01 05:27:30,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-01 05:27:30,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-09-01 05:27:30,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 898 transitions. [2023-09-01 05:27:30,771 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43193843193843195 [2023-09-01 05:27:30,771 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 898 transitions. [2023-09-01 05:27:30,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 898 transitions. [2023-09-01 05:27:30,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:30,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 898 transitions. [2023-09-01 05:27:30,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.28571428571428) internal successors, (898), 7 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,777 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 297.0) internal successors, (2376), 8 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,777 INFO L175 Difference]: Start difference. First operand has 84 places, 46 transitions, 519 flow. Second operand 7 states and 898 transitions. [2023-09-01 05:27:30,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 51 transitions, 625 flow [2023-09-01 05:27:30,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 51 transitions, 525 flow, removed 3 selfloop flow, removed 11 redundant places. [2023-09-01 05:27:30,781 INFO L231 Difference]: Finished difference. Result has 73 places, 45 transitions, 443 flow [2023-09-01 05:27:30,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=443, PETRI_PLACES=73, PETRI_TRANSITIONS=45} [2023-09-01 05:27:30,781 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 43 predicate places. [2023-09-01 05:27:30,782 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 45 transitions, 443 flow [2023-09-01 05:27:30,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.125) internal successors, (1001), 8 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:30,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:30,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:30,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-09-01 05:27:30,783 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:30,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:30,783 INFO L85 PathProgramCache]: Analyzing trace with hash 348951947, now seen corresponding path program 3 times [2023-09-01 05:27:30,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:30,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840561950] [2023-09-01 05:27:30,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:30,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:31,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:31,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:31,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840561950] [2023-09-01 05:27:31,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840561950] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:31,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:31,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:31,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396485144] [2023-09-01 05:27:31,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:31,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:31,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:31,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:31,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:31,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-09-01 05:27:31,465 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 45 transitions, 443 flow. Second operand has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:31,465 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:31,465 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-09-01 05:27:31,465 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:31,672 INFO L130 PetriNetUnfolder]: 46/133 cut-off events. [2023-09-01 05:27:31,672 INFO L131 PetriNetUnfolder]: For 572/572 co-relation queries the response was YES. [2023-09-01 05:27:31,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 133 events. 46/133 cut-off events. For 572/572 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 506 event pairs, 9 based on Foata normal form. 2/135 useless extension candidates. Maximal degree in co-relation 544. Up to 72 conditions per place. [2023-09-01 05:27:31,674 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 31 selfloop transitions, 18 changer transitions 6/55 dead transitions. [2023-09-01 05:27:31,674 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 55 transitions, 573 flow [2023-09-01 05:27:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:27:31,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:27:31,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1172 transitions. [2023-09-01 05:27:31,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4384586606808829 [2023-09-01 05:27:31,680 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1172 transitions. [2023-09-01 05:27:31,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1172 transitions. [2023-09-01 05:27:31,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:31,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1172 transitions. [2023-09-01 05:27:31,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 130.22222222222223) internal successors, (1172), 9 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:31,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:31,686 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:31,686 INFO L175 Difference]: Start difference. First operand has 73 places, 45 transitions, 443 flow. Second operand 9 states and 1172 transitions. [2023-09-01 05:27:31,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 55 transitions, 573 flow [2023-09-01 05:27:31,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 55 transitions, 526 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:31,689 INFO L231 Difference]: Finished difference. Result has 74 places, 41 transitions, 405 flow [2023-09-01 05:27:31,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=405, PETRI_PLACES=74, PETRI_TRANSITIONS=41} [2023-09-01 05:27:31,691 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 44 predicate places. [2023-09-01 05:27:31,691 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 41 transitions, 405 flow [2023-09-01 05:27:31,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:31,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:31,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:31,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-09-01 05:27:31,702 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:31,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:31,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1512127054, now seen corresponding path program 1 times [2023-09-01 05:27:31,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:31,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208853504] [2023-09-01 05:27:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:31,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:32,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:32,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:32,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208853504] [2023-09-01 05:27:32,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208853504] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:32,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:32,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:32,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816694864] [2023-09-01 05:27:32,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:32,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:32,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:32,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:32,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:33,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:33,364 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 41 transitions, 405 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:33,364 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:33,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:33,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:34,259 INFO L130 PetriNetUnfolder]: 49/173 cut-off events. [2023-09-01 05:27:34,259 INFO L131 PetriNetUnfolder]: For 836/836 co-relation queries the response was YES. [2023-09-01 05:27:34,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 173 events. 49/173 cut-off events. For 836/836 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 821 event pairs, 7 based on Foata normal form. 2/175 useless extension candidates. Maximal degree in co-relation 658. Up to 42 conditions per place. [2023-09-01 05:27:34,261 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 39 selfloop transitions, 55 changer transitions 0/94 dead transitions. [2023-09-01 05:27:34,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 94 transitions, 1056 flow [2023-09-01 05:27:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-09-01 05:27:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-09-01 05:27:34,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2772 transitions. [2023-09-01 05:27:34,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4057971014492754 [2023-09-01 05:27:34,267 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2772 transitions. [2023-09-01 05:27:34,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2772 transitions. [2023-09-01 05:27:34,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:34,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2772 transitions. [2023-09-01 05:27:34,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 120.52173913043478) internal successors, (2772), 23 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:34,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 297.0) internal successors, (7128), 24 states have internal predecessors, (7128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:34,282 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 297.0) internal successors, (7128), 24 states have internal predecessors, (7128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:34,282 INFO L175 Difference]: Start difference. First operand has 74 places, 41 transitions, 405 flow. Second operand 23 states and 2772 transitions. [2023-09-01 05:27:34,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 94 transitions, 1056 flow [2023-09-01 05:27:34,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 94 transitions, 919 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-09-01 05:27:34,287 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 747 flow [2023-09-01 05:27:34,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=747, PETRI_PLACES=80, PETRI_TRANSITIONS=75} [2023-09-01 05:27:34,288 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 50 predicate places. [2023-09-01 05:27:34,288 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 747 flow [2023-09-01 05:27:34,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:34,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:34,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:34,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-09-01 05:27:34,289 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:34,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash 395372074, now seen corresponding path program 2 times [2023-09-01 05:27:34,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:34,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676936251] [2023-09-01 05:27:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:34,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:35,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:35,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:35,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676936251] [2023-09-01 05:27:35,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676936251] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:35,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:35,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:35,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116116593] [2023-09-01 05:27:35,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:35,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:35,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:35,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:35,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:35,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:35,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 75 transitions, 747 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:35,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:35,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:35,974 INFO L130 PetriNetUnfolder]: 49/179 cut-off events. [2023-09-01 05:27:35,974 INFO L131 PetriNetUnfolder]: For 806/806 co-relation queries the response was YES. [2023-09-01 05:27:35,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 179 events. 49/179 cut-off events. For 806/806 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 870 event pairs, 9 based on Foata normal form. 2/181 useless extension candidates. Maximal degree in co-relation 751. Up to 53 conditions per place. [2023-09-01 05:27:35,976 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 30 selfloop transitions, 59 changer transitions 0/89 dead transitions. [2023-09-01 05:27:35,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 89 transitions, 988 flow [2023-09-01 05:27:35,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-01 05:27:35,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-09-01 05:27:35,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1819 transitions. [2023-09-01 05:27:35,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40830527497194163 [2023-09-01 05:27:35,981 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1819 transitions. [2023-09-01 05:27:35,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1819 transitions. [2023-09-01 05:27:35,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:35,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1819 transitions. [2023-09-01 05:27:35,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 121.26666666666667) internal successors, (1819), 15 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,992 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:35,992 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 747 flow. Second operand 15 states and 1819 transitions. [2023-09-01 05:27:35,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 89 transitions, 988 flow [2023-09-01 05:27:35,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 89 transitions, 940 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-09-01 05:27:35,999 INFO L231 Difference]: Finished difference. Result has 91 places, 78 transitions, 866 flow [2023-09-01 05:27:36,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=866, PETRI_PLACES=91, PETRI_TRANSITIONS=78} [2023-09-01 05:27:36,000 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 61 predicate places. [2023-09-01 05:27:36,000 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 78 transitions, 866 flow [2023-09-01 05:27:36,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:36,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:36,001 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:36,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-09-01 05:27:36,002 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:36,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1044204571, now seen corresponding path program 1 times [2023-09-01 05:27:36,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:36,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949594262] [2023-09-01 05:27:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:36,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:36,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:36,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949594262] [2023-09-01 05:27:36,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949594262] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:36,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:36,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-01 05:27:36,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132952800] [2023-09-01 05:27:36,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:36,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 05:27:36,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:36,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 05:27:36,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-09-01 05:27:37,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 297 [2023-09-01 05:27:37,181 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 78 transitions, 866 flow. Second operand has 9 states, 9 states have (on average 120.33333333333333) internal successors, (1083), 9 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:37,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:37,181 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 297 [2023-09-01 05:27:37,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:37,722 INFO L130 PetriNetUnfolder]: 48/200 cut-off events. [2023-09-01 05:27:37,723 INFO L131 PetriNetUnfolder]: For 1160/1160 co-relation queries the response was YES. [2023-09-01 05:27:37,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1060 conditions, 200 events. 48/200 cut-off events. For 1160/1160 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1079 event pairs, 13 based on Foata normal form. 10/210 useless extension candidates. Maximal degree in co-relation 913. Up to 50 conditions per place. [2023-09-01 05:27:37,731 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 32 selfloop transitions, 56 changer transitions 4/92 dead transitions. [2023-09-01 05:27:37,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 92 transitions, 1156 flow [2023-09-01 05:27:37,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-01 05:27:37,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-09-01 05:27:37,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2071 transitions. [2023-09-01 05:27:37,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41018023370964546 [2023-09-01 05:27:37,734 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2071 transitions. [2023-09-01 05:27:37,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2071 transitions. [2023-09-01 05:27:37,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:37,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2071 transitions. [2023-09-01 05:27:37,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 121.82352941176471) internal successors, (2071), 17 states have internal predecessors, (2071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:37,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:37,745 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:37,745 INFO L175 Difference]: Start difference. First operand has 91 places, 78 transitions, 866 flow. Second operand 17 states and 2071 transitions. [2023-09-01 05:27:37,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 92 transitions, 1156 flow [2023-09-01 05:27:37,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 92 transitions, 1056 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-09-01 05:27:37,751 INFO L231 Difference]: Finished difference. Result has 100 places, 82 transitions, 967 flow [2023-09-01 05:27:37,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=967, PETRI_PLACES=100, PETRI_TRANSITIONS=82} [2023-09-01 05:27:37,752 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 70 predicate places. [2023-09-01 05:27:37,752 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 82 transitions, 967 flow [2023-09-01 05:27:37,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.33333333333333) internal successors, (1083), 9 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:37,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:37,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:37,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-09-01 05:27:37,753 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:37,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:37,754 INFO L85 PathProgramCache]: Analyzing trace with hash -647974710, now seen corresponding path program 3 times [2023-09-01 05:27:37,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:37,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507104400] [2023-09-01 05:27:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:37,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:37,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:38,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:38,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:38,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507104400] [2023-09-01 05:27:38,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507104400] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:38,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:38,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:38,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917969617] [2023-09-01 05:27:38,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:38,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:38,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:38,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:38,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:39,000 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:39,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 82 transitions, 967 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:39,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:39,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:39,870 INFO L130 PetriNetUnfolder]: 45/199 cut-off events. [2023-09-01 05:27:39,870 INFO L131 PetriNetUnfolder]: For 1506/1506 co-relation queries the response was YES. [2023-09-01 05:27:39,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 199 events. 45/199 cut-off events. For 1506/1506 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1100 event pairs, 12 based on Foata normal form. 2/201 useless extension candidates. Maximal degree in co-relation 968. Up to 73 conditions per place. [2023-09-01 05:27:39,872 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 36 selfloop transitions, 57 changer transitions 7/100 dead transitions. [2023-09-01 05:27:39,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 100 transitions, 1286 flow [2023-09-01 05:27:39,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-09-01 05:27:39,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-09-01 05:27:39,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2775 transitions. [2023-09-01 05:27:39,876 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4062362758014932 [2023-09-01 05:27:39,876 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2775 transitions. [2023-09-01 05:27:39,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2775 transitions. [2023-09-01 05:27:39,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:39,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2775 transitions. [2023-09-01 05:27:39,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 120.65217391304348) internal successors, (2775), 23 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 297.0) internal successors, (7128), 24 states have internal predecessors, (7128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,889 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 297.0) internal successors, (7128), 24 states have internal predecessors, (7128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,889 INFO L175 Difference]: Start difference. First operand has 100 places, 82 transitions, 967 flow. Second operand 23 states and 2775 transitions. [2023-09-01 05:27:39,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 100 transitions, 1286 flow [2023-09-01 05:27:39,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 100 transitions, 1175 flow, removed 11 selfloop flow, removed 14 redundant places. [2023-09-01 05:27:39,896 INFO L231 Difference]: Finished difference. Result has 110 places, 81 transitions, 1002 flow [2023-09-01 05:27:39,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1002, PETRI_PLACES=110, PETRI_TRANSITIONS=81} [2023-09-01 05:27:39,897 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 80 predicate places. [2023-09-01 05:27:39,897 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 81 transitions, 1002 flow [2023-09-01 05:27:39,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:39,898 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:39,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:39,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-09-01 05:27:39,898 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:39,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:39,899 INFO L85 PathProgramCache]: Analyzing trace with hash 395372073, now seen corresponding path program 2 times [2023-09-01 05:27:39,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:39,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158515972] [2023-09-01 05:27:39,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:39,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:40,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:40,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:40,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158515972] [2023-09-01 05:27:40,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158515972] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:40,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:40,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:40,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581456508] [2023-09-01 05:27:40,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:40,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:40,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:40,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:40,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:41,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:41,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 81 transitions, 1002 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,038 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:41,038 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:41,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:41,589 INFO L130 PetriNetUnfolder]: 41/185 cut-off events. [2023-09-01 05:27:41,589 INFO L131 PetriNetUnfolder]: For 1368/1368 co-relation queries the response was YES. [2023-09-01 05:27:41,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 185 events. 41/185 cut-off events. For 1368/1368 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 991 event pairs, 8 based on Foata normal form. 2/187 useless extension candidates. Maximal degree in co-relation 1021. Up to 58 conditions per place. [2023-09-01 05:27:41,591 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 29 selfloop transitions, 52 changer transitions 8/89 dead transitions. [2023-09-01 05:27:41,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 89 transitions, 1195 flow [2023-09-01 05:27:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-01 05:27:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-09-01 05:27:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1816 transitions. [2023-09-01 05:27:41,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.407631874298541 [2023-09-01 05:27:41,595 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1816 transitions. [2023-09-01 05:27:41,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1816 transitions. [2023-09-01 05:27:41,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:41,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1816 transitions. [2023-09-01 05:27:41,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 121.06666666666666) internal successors, (1816), 15 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,603 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 297.0) internal successors, (4752), 16 states have internal predecessors, (4752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,603 INFO L175 Difference]: Start difference. First operand has 110 places, 81 transitions, 1002 flow. Second operand 15 states and 1816 transitions. [2023-09-01 05:27:41,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 89 transitions, 1195 flow [2023-09-01 05:27:41,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 89 transitions, 1085 flow, removed 3 selfloop flow, removed 19 redundant places. [2023-09-01 05:27:41,611 INFO L231 Difference]: Finished difference. Result has 104 places, 75 transitions, 913 flow [2023-09-01 05:27:41,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=913, PETRI_PLACES=104, PETRI_TRANSITIONS=75} [2023-09-01 05:27:41,612 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 74 predicate places. [2023-09-01 05:27:41,612 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 75 transitions, 913 flow [2023-09-01 05:27:41,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:41,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:41,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:41,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-09-01 05:27:41,613 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:41,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:41,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1539346474, now seen corresponding path program 4 times [2023-09-01 05:27:41,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:41,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617670192] [2023-09-01 05:27:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:41,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:42,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:42,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617670192] [2023-09-01 05:27:42,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617670192] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:42,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:42,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:42,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831377257] [2023-09-01 05:27:42,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:42,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:42,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:42,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:42,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:42,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:42,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 75 transitions, 913 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:42,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:42,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:42,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:43,239 INFO L130 PetriNetUnfolder]: 39/203 cut-off events. [2023-09-01 05:27:43,239 INFO L131 PetriNetUnfolder]: For 1551/1551 co-relation queries the response was YES. [2023-09-01 05:27:43,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1222 conditions, 203 events. 39/203 cut-off events. For 1551/1551 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1191 event pairs, 13 based on Foata normal form. 2/205 useless extension candidates. Maximal degree in co-relation 1146. Up to 65 conditions per place. [2023-09-01 05:27:43,241 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 33 selfloop transitions, 61 changer transitions 8/102 dead transitions. [2023-09-01 05:27:43,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 102 transitions, 1388 flow [2023-09-01 05:27:43,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-01 05:27:43,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-09-01 05:27:43,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2060 transitions. [2023-09-01 05:27:43,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4080015844721727 [2023-09-01 05:27:43,244 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2060 transitions. [2023-09-01 05:27:43,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2060 transitions. [2023-09-01 05:27:43,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:43,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2060 transitions. [2023-09-01 05:27:43,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 121.17647058823529) internal successors, (2060), 17 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:43,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:43,252 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:43,252 INFO L175 Difference]: Start difference. First operand has 104 places, 75 transitions, 913 flow. Second operand 17 states and 2060 transitions. [2023-09-01 05:27:43,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 102 transitions, 1388 flow [2023-09-01 05:27:43,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 102 transitions, 1213 flow, removed 7 selfloop flow, removed 16 redundant places. [2023-09-01 05:27:43,259 INFO L231 Difference]: Finished difference. Result has 100 places, 80 transitions, 985 flow [2023-09-01 05:27:43,259 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=985, PETRI_PLACES=100, PETRI_TRANSITIONS=80} [2023-09-01 05:27:43,260 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 70 predicate places. [2023-09-01 05:27:43,260 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 80 transitions, 985 flow [2023-09-01 05:27:43,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:43,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:43,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:43,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-09-01 05:27:43,261 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:43,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:43,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1812408751, now seen corresponding path program 3 times [2023-09-01 05:27:43,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:43,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923979830] [2023-09-01 05:27:43,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:43,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:43,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:43,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:43,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923979830] [2023-09-01 05:27:43,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923979830] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:43,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:43,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:43,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853791968] [2023-09-01 05:27:43,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:43,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:43,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:43,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:43,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:43,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-09-01 05:27:43,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 80 transitions, 985 flow. Second operand has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:43,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:43,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-09-01 05:27:43,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:44,201 INFO L130 PetriNetUnfolder]: 36/188 cut-off events. [2023-09-01 05:27:44,201 INFO L131 PetriNetUnfolder]: For 1264/1264 co-relation queries the response was YES. [2023-09-01 05:27:44,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 188 events. 36/188 cut-off events. For 1264/1264 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1070 event pairs, 11 based on Foata normal form. 4/192 useless extension candidates. Maximal degree in co-relation 1042. Up to 60 conditions per place. [2023-09-01 05:27:44,203 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 56 selfloop transitions, 42 changer transitions 0/98 dead transitions. [2023-09-01 05:27:44,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 98 transitions, 1303 flow [2023-09-01 05:27:44,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:27:44,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:27:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1028 transitions. [2023-09-01 05:27:44,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43265993265993263 [2023-09-01 05:27:44,212 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1028 transitions. [2023-09-01 05:27:44,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1028 transitions. [2023-09-01 05:27:44,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:44,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1028 transitions. [2023-09-01 05:27:44,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 128.5) internal successors, (1028), 8 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,221 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,221 INFO L175 Difference]: Start difference. First operand has 100 places, 80 transitions, 985 flow. Second operand 8 states and 1028 transitions. [2023-09-01 05:27:44,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 98 transitions, 1303 flow [2023-09-01 05:27:44,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 98 transitions, 1252 flow, removed 5 selfloop flow, removed 7 redundant places. [2023-09-01 05:27:44,228 INFO L231 Difference]: Finished difference. Result has 100 places, 83 transitions, 1128 flow [2023-09-01 05:27:44,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1128, PETRI_PLACES=100, PETRI_TRANSITIONS=83} [2023-09-01 05:27:44,229 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 70 predicate places. [2023-09-01 05:27:44,229 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 83 transitions, 1128 flow [2023-09-01 05:27:44,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:44,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:44,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-09-01 05:27:44,230 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:44,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:44,231 INFO L85 PathProgramCache]: Analyzing trace with hash 155978669, now seen corresponding path program 4 times [2023-09-01 05:27:44,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:44,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419009585] [2023-09-01 05:27:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:44,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:44,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:44,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419009585] [2023-09-01 05:27:44,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419009585] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:44,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:44,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:27:44,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96534580] [2023-09-01 05:27:44,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:44,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:27:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:44,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:27:44,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:27:44,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-09-01 05:27:44,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 83 transitions, 1128 flow. Second operand has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:44,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:44,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-09-01 05:27:44,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:45,110 INFO L130 PetriNetUnfolder]: 33/179 cut-off events. [2023-09-01 05:27:45,110 INFO L131 PetriNetUnfolder]: For 1618/1618 co-relation queries the response was YES. [2023-09-01 05:27:45,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1112 conditions, 179 events. 33/179 cut-off events. For 1618/1618 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1007 event pairs, 11 based on Foata normal form. 6/185 useless extension candidates. Maximal degree in co-relation 984. Up to 60 conditions per place. [2023-09-01 05:27:45,112 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 56 selfloop transitions, 42 changer transitions 0/98 dead transitions. [2023-09-01 05:27:45,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 98 transitions, 1372 flow [2023-09-01 05:27:45,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-01 05:27:45,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-09-01 05:27:45,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1158 transitions. [2023-09-01 05:27:45,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4332210998877666 [2023-09-01 05:27:45,114 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1158 transitions. [2023-09-01 05:27:45,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1158 transitions. [2023-09-01 05:27:45,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:45,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1158 transitions. [2023-09-01 05:27:45,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 128.66666666666666) internal successors, (1158), 9 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,119 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 297.0) internal successors, (2970), 10 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,119 INFO L175 Difference]: Start difference. First operand has 100 places, 83 transitions, 1128 flow. Second operand 9 states and 1158 transitions. [2023-09-01 05:27:45,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 98 transitions, 1372 flow [2023-09-01 05:27:45,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 98 transitions, 1364 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-09-01 05:27:45,126 INFO L231 Difference]: Finished difference. Result has 109 places, 85 transitions, 1267 flow [2023-09-01 05:27:45,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1103, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1267, PETRI_PLACES=109, PETRI_TRANSITIONS=85} [2023-09-01 05:27:45,127 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 79 predicate places. [2023-09-01 05:27:45,127 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 85 transitions, 1267 flow [2023-09-01 05:27:45,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:45,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:45,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:45,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-09-01 05:27:45,128 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:45,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:45,128 INFO L85 PathProgramCache]: Analyzing trace with hash 120229470, now seen corresponding path program 5 times [2023-09-01 05:27:45,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:45,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185947924] [2023-09-01 05:27:45,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:45,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:45,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:45,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:45,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185947924] [2023-09-01 05:27:45,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185947924] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:45,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:45,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:45,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000042571] [2023-09-01 05:27:45,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:45,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:45,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:45,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:45,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:46,371 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:46,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 85 transitions, 1267 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:46,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:46,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:46,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:47,069 INFO L130 PetriNetUnfolder]: 31/173 cut-off events. [2023-09-01 05:27:47,070 INFO L131 PetriNetUnfolder]: For 2004/2004 co-relation queries the response was YES. [2023-09-01 05:27:47,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1177 conditions, 173 events. 31/173 cut-off events. For 2004/2004 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 959 event pairs, 12 based on Foata normal form. 4/177 useless extension candidates. Maximal degree in co-relation 1062. Up to 70 conditions per place. [2023-09-01 05:27:47,071 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 29 selfloop transitions, 53 changer transitions 14/96 dead transitions. [2023-09-01 05:27:47,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 96 transitions, 1517 flow [2023-09-01 05:27:47,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-01 05:27:47,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-09-01 05:27:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2054 transitions. [2023-09-01 05:27:47,075 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4068132303426421 [2023-09-01 05:27:47,075 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2054 transitions. [2023-09-01 05:27:47,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2054 transitions. [2023-09-01 05:27:47,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:47,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2054 transitions. [2023-09-01 05:27:47,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 120.82352941176471) internal successors, (2054), 17 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:47,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:47,086 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:47,087 INFO L175 Difference]: Start difference. First operand has 109 places, 85 transitions, 1267 flow. Second operand 17 states and 2054 transitions. [2023-09-01 05:27:47,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 96 transitions, 1517 flow [2023-09-01 05:27:47,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 96 transitions, 1482 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-09-01 05:27:47,096 INFO L231 Difference]: Finished difference. Result has 124 places, 77 transitions, 1171 flow [2023-09-01 05:27:47,096 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1232, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1171, PETRI_PLACES=124, PETRI_TRANSITIONS=77} [2023-09-01 05:27:47,097 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 94 predicate places. [2023-09-01 05:27:47,097 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 77 transitions, 1171 flow [2023-09-01 05:27:47,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:47,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:47,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:47,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-09-01 05:27:47,098 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:47,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash -412053520, now seen corresponding path program 6 times [2023-09-01 05:27:47,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:47,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981248021] [2023-09-01 05:27:47,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:47,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:47,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:47,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981248021] [2023-09-01 05:27:47,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981248021] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:47,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:47,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:47,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501458727] [2023-09-01 05:27:47,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:47,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:47,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:47,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:47,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:48,280 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:48,281 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 77 transitions, 1171 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:48,281 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:48,281 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:48,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:48,911 INFO L130 PetriNetUnfolder]: 30/184 cut-off events. [2023-09-01 05:27:48,911 INFO L131 PetriNetUnfolder]: For 2027/2027 co-relation queries the response was YES. [2023-09-01 05:27:48,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1306 conditions, 184 events. 30/184 cut-off events. For 2027/2027 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1080 event pairs, 16 based on Foata normal form. 2/186 useless extension candidates. Maximal degree in co-relation 1216. Up to 86 conditions per place. [2023-09-01 05:27:48,913 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 49 selfloop transitions, 43 changer transitions 8/100 dead transitions. [2023-09-01 05:27:48,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 100 transitions, 1660 flow [2023-09-01 05:27:48,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-01 05:27:48,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-09-01 05:27:48,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2053 transitions. [2023-09-01 05:27:48,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4066151713210537 [2023-09-01 05:27:48,916 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2053 transitions. [2023-09-01 05:27:48,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2053 transitions. [2023-09-01 05:27:48,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:48,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2053 transitions. [2023-09-01 05:27:48,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 120.76470588235294) internal successors, (2053), 17 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:48,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:48,924 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 297.0) internal successors, (5346), 18 states have internal predecessors, (5346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:48,924 INFO L175 Difference]: Start difference. First operand has 124 places, 77 transitions, 1171 flow. Second operand 17 states and 2053 transitions. [2023-09-01 05:27:48,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 100 transitions, 1660 flow [2023-09-01 05:27:48,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 100 transitions, 1550 flow, removed 4 selfloop flow, removed 13 redundant places. [2023-09-01 05:27:48,934 INFO L231 Difference]: Finished difference. Result has 129 places, 81 transitions, 1238 flow [2023-09-01 05:27:48,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1238, PETRI_PLACES=129, PETRI_TRANSITIONS=81} [2023-09-01 05:27:48,937 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 99 predicate places. [2023-09-01 05:27:48,938 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 81 transitions, 1238 flow [2023-09-01 05:27:48,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:48,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:48,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:48,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-09-01 05:27:48,940 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:48,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:48,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1382345216, now seen corresponding path program 7 times [2023-09-01 05:27:48,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:48,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887851531] [2023-09-01 05:27:48,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:48,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:49,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:49,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:49,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887851531] [2023-09-01 05:27:49,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887851531] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:49,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:49,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:49,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219908734] [2023-09-01 05:27:49,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:49,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:49,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:49,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:49,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:49,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 297 [2023-09-01 05:27:49,990 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 81 transitions, 1238 flow. Second operand has 10 states, 10 states have (on average 117.2) internal successors, (1172), 10 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:49,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:49,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 297 [2023-09-01 05:27:49,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:50,400 INFO L130 PetriNetUnfolder]: 28/172 cut-off events. [2023-09-01 05:27:50,400 INFO L131 PetriNetUnfolder]: For 1976/1976 co-relation queries the response was YES. [2023-09-01 05:27:50,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 172 events. 28/172 cut-off events. For 1976/1976 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 969 event pairs, 15 based on Foata normal form. 2/174 useless extension candidates. Maximal degree in co-relation 1136. Up to 101 conditions per place. [2023-09-01 05:27:50,402 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 42 selfloop transitions, 36 changer transitions 9/87 dead transitions. [2023-09-01 05:27:50,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 87 transitions, 1448 flow [2023-09-01 05:27:50,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:50,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:50,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1429 transitions. [2023-09-01 05:27:50,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4009539842873176 [2023-09-01 05:27:50,405 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1429 transitions. [2023-09-01 05:27:50,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1429 transitions. [2023-09-01 05:27:50,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:50,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1429 transitions. [2023-09-01 05:27:50,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 119.08333333333333) internal successors, (1429), 12 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,410 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,410 INFO L175 Difference]: Start difference. First operand has 129 places, 81 transitions, 1238 flow. Second operand 12 states and 1429 transitions. [2023-09-01 05:27:50,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 87 transitions, 1448 flow [2023-09-01 05:27:50,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 87 transitions, 1424 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-09-01 05:27:50,419 INFO L231 Difference]: Finished difference. Result has 134 places, 75 transitions, 1182 flow [2023-09-01 05:27:50,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1214, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1182, PETRI_PLACES=134, PETRI_TRANSITIONS=75} [2023-09-01 05:27:50,420 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 104 predicate places. [2023-09-01 05:27:50,421 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 75 transitions, 1182 flow [2023-09-01 05:27:50,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 117.2) internal successors, (1172), 10 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:50,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:50,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:50,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-09-01 05:27:50,422 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:50,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:50,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1196062312, now seen corresponding path program 8 times [2023-09-01 05:27:50,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:50,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328745304] [2023-09-01 05:27:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:50,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:51,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:51,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:51,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328745304] [2023-09-01 05:27:51,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328745304] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:51,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:51,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:51,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009774658] [2023-09-01 05:27:51,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:51,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:51,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:51,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:51,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:51,580 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:51,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 75 transitions, 1182 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:51,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:51,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:51,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:51,917 INFO L130 PetriNetUnfolder]: 26/158 cut-off events. [2023-09-01 05:27:51,917 INFO L131 PetriNetUnfolder]: For 1974/1974 co-relation queries the response was YES. [2023-09-01 05:27:51,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 158 events. 26/158 cut-off events. For 1974/1974 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 862 event pairs, 14 based on Foata normal form. 2/160 useless extension candidates. Maximal degree in co-relation 1060. Up to 93 conditions per place. [2023-09-01 05:27:51,919 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 45 selfloop transitions, 31 changer transitions 7/83 dead transitions. [2023-09-01 05:27:51,919 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 83 transitions, 1379 flow [2023-09-01 05:27:51,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:51,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:51,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1335 transitions. [2023-09-01 05:27:51,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4086317722681359 [2023-09-01 05:27:51,921 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1335 transitions. [2023-09-01 05:27:51,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1335 transitions. [2023-09-01 05:27:51,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:51,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1335 transitions. [2023-09-01 05:27:51,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 121.36363636363636) internal successors, (1335), 11 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:51,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:51,927 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:51,927 INFO L175 Difference]: Start difference. First operand has 134 places, 75 transitions, 1182 flow. Second operand 11 states and 1335 transitions. [2023-09-01 05:27:51,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 83 transitions, 1379 flow [2023-09-01 05:27:51,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 83 transitions, 1294 flow, removed 5 selfloop flow, removed 10 redundant places. [2023-09-01 05:27:51,935 INFO L231 Difference]: Finished difference. Result has 129 places, 71 transitions, 1081 flow [2023-09-01 05:27:51,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=1099, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1081, PETRI_PLACES=129, PETRI_TRANSITIONS=71} [2023-09-01 05:27:51,936 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 99 predicate places. [2023-09-01 05:27:51,936 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 71 transitions, 1081 flow [2023-09-01 05:27:51,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:51,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:51,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:51,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-09-01 05:27:51,937 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:51,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:51,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1192607410, now seen corresponding path program 9 times [2023-09-01 05:27:51,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:51,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104081517] [2023-09-01 05:27:51,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:51,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:52,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:52,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:52,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104081517] [2023-09-01 05:27:52,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104081517] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:52,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:52,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:52,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572061492] [2023-09-01 05:27:52,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:52,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:52,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:52,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:52,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:53,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:53,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 71 transitions, 1081 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:53,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:53,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:53,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:53,476 INFO L130 PetriNetUnfolder]: 23/143 cut-off events. [2023-09-01 05:27:53,476 INFO L131 PetriNetUnfolder]: For 1747/1747 co-relation queries the response was YES. [2023-09-01 05:27:53,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1031 conditions, 143 events. 23/143 cut-off events. For 1747/1747 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 742 event pairs, 12 based on Foata normal form. 4/147 useless extension candidates. Maximal degree in co-relation 1007. Up to 74 conditions per place. [2023-09-01 05:27:53,478 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 36 selfloop transitions, 25 changer transitions 16/77 dead transitions. [2023-09-01 05:27:53,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 77 transitions, 1225 flow [2023-09-01 05:27:53,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:53,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:53,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1455 transitions. [2023-09-01 05:27:53,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40824915824915825 [2023-09-01 05:27:53,480 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1455 transitions. [2023-09-01 05:27:53,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1455 transitions. [2023-09-01 05:27:53,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:53,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1455 transitions. [2023-09-01 05:27:53,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 121.25) internal successors, (1455), 12 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:53,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:53,485 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:53,485 INFO L175 Difference]: Start difference. First operand has 129 places, 71 transitions, 1081 flow. Second operand 12 states and 1455 transitions. [2023-09-01 05:27:53,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 77 transitions, 1225 flow [2023-09-01 05:27:53,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 77 transitions, 1101 flow, removed 3 selfloop flow, removed 11 redundant places. [2023-09-01 05:27:53,493 INFO L231 Difference]: Finished difference. Result has 128 places, 58 transitions, 777 flow [2023-09-01 05:27:53,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=777, PETRI_PLACES=128, PETRI_TRANSITIONS=58} [2023-09-01 05:27:53,494 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 98 predicate places. [2023-09-01 05:27:53,494 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 58 transitions, 777 flow [2023-09-01 05:27:53,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:53,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:53,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:53,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-09-01 05:27:53,495 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:53,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:53,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2083088854, now seen corresponding path program 10 times [2023-09-01 05:27:53,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:53,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913229915] [2023-09-01 05:27:53,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:53,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:54,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913229915] [2023-09-01 05:27:54,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913229915] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:54,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:54,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:54,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452908013] [2023-09-01 05:27:54,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:54,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:54,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:54,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:54,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:54,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:54,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 58 transitions, 777 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:54,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:54,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:54,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:54,685 INFO L130 PetriNetUnfolder]: 16/111 cut-off events. [2023-09-01 05:27:54,685 INFO L131 PetriNetUnfolder]: For 1148/1148 co-relation queries the response was YES. [2023-09-01 05:27:54,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 111 events. 16/111 cut-off events. For 1148/1148 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 538 event pairs, 9 based on Foata normal form. 2/113 useless extension candidates. Maximal degree in co-relation 769. Up to 69 conditions per place. [2023-09-01 05:27:54,686 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 34 selfloop transitions, 20 changer transitions 7/61 dead transitions. [2023-09-01 05:27:54,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 61 transitions, 896 flow [2023-09-01 05:27:54,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:27:54,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:27:54,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1336 transitions. [2023-09-01 05:27:54,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.408937863483318 [2023-09-01 05:27:54,688 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1336 transitions. [2023-09-01 05:27:54,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1336 transitions. [2023-09-01 05:27:54,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:54,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1336 transitions. [2023-09-01 05:27:54,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 121.45454545454545) internal successors, (1336), 11 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:54,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:54,693 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:54,693 INFO L175 Difference]: Start difference. First operand has 128 places, 58 transitions, 777 flow. Second operand 11 states and 1336 transitions. [2023-09-01 05:27:54,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 61 transitions, 896 flow [2023-09-01 05:27:54,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 61 transitions, 744 flow, removed 6 selfloop flow, removed 22 redundant places. [2023-09-01 05:27:54,699 INFO L231 Difference]: Finished difference. Result has 112 places, 52 transitions, 598 flow [2023-09-01 05:27:54,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=598, PETRI_PLACES=112, PETRI_TRANSITIONS=52} [2023-09-01 05:27:54,700 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 82 predicate places. [2023-09-01 05:27:54,700 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 52 transitions, 598 flow [2023-09-01 05:27:54,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:54,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:54,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:54,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-09-01 05:27:54,701 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:54,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:54,702 INFO L85 PathProgramCache]: Analyzing trace with hash 890644776, now seen corresponding path program 11 times [2023-09-01 05:27:54,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:54,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257510421] [2023-09-01 05:27:54,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:54,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:55,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:55,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:55,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257510421] [2023-09-01 05:27:55,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257510421] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:55,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:55,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:55,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367524301] [2023-09-01 05:27:55,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:55,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:55,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:55,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:55,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:55,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 297 [2023-09-01 05:27:55,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 52 transitions, 598 flow. Second operand has 10 states, 10 states have (on average 117.2) internal successors, (1172), 10 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:55,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:55,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 297 [2023-09-01 05:27:55,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:56,061 INFO L130 PetriNetUnfolder]: 11/89 cut-off events. [2023-09-01 05:27:56,061 INFO L131 PetriNetUnfolder]: For 760/760 co-relation queries the response was YES. [2023-09-01 05:27:56,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 89 events. 11/89 cut-off events. For 760/760 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 379 event pairs, 8 based on Foata normal form. 10/99 useless extension candidates. Maximal degree in co-relation 561. Up to 35 conditions per place. [2023-09-01 05:27:56,061 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 22 selfloop transitions, 32 changer transitions 0/54 dead transitions. [2023-09-01 05:27:56,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 54 transitions, 690 flow [2023-09-01 05:27:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-09-01 05:27:56,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-09-01 05:27:56,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1661 transitions. [2023-09-01 05:27:56,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3994708994708995 [2023-09-01 05:27:56,064 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1661 transitions. [2023-09-01 05:27:56,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1661 transitions. [2023-09-01 05:27:56,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:56,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1661 transitions. [2023-09-01 05:27:56,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 118.64285714285714) internal successors, (1661), 14 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:56,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:56,070 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 297.0) internal successors, (4455), 15 states have internal predecessors, (4455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:56,070 INFO L175 Difference]: Start difference. First operand has 112 places, 52 transitions, 598 flow. Second operand 14 states and 1661 transitions. [2023-09-01 05:27:56,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 54 transitions, 690 flow [2023-09-01 05:27:56,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 54 transitions, 607 flow, removed 4 selfloop flow, removed 13 redundant places. [2023-09-01 05:27:56,074 INFO L231 Difference]: Finished difference. Result has 105 places, 50 transitions, 551 flow [2023-09-01 05:27:56,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=551, PETRI_PLACES=105, PETRI_TRANSITIONS=50} [2023-09-01 05:27:56,074 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 75 predicate places. [2023-09-01 05:27:56,074 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 50 transitions, 551 flow [2023-09-01 05:27:56,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 117.2) internal successors, (1172), 10 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:56,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:56,075 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:56,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-09-01 05:27:56,075 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:56,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:56,076 INFO L85 PathProgramCache]: Analyzing trace with hash 898198236, now seen corresponding path program 12 times [2023-09-01 05:27:56,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:56,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229059386] [2023-09-01 05:27:56,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:56,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:56,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:56,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:56,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229059386] [2023-09-01 05:27:56,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229059386] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:56,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:56,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:56,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010343874] [2023-09-01 05:27:56,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:56,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:56,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:56,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:56,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:57,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:57,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 50 transitions, 551 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:57,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:57,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:57,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:57,699 INFO L130 PetriNetUnfolder]: 10/86 cut-off events. [2023-09-01 05:27:57,700 INFO L131 PetriNetUnfolder]: For 412/412 co-relation queries the response was YES. [2023-09-01 05:27:57,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 86 events. 10/86 cut-off events. For 412/412 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 365 event pairs, 2 based on Foata normal form. 2/88 useless extension candidates. Maximal degree in co-relation 539. Up to 36 conditions per place. [2023-09-01 05:27:57,700 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 14 selfloop transitions, 34 changer transitions 7/55 dead transitions. [2023-09-01 05:27:57,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 55 transitions, 675 flow [2023-09-01 05:27:57,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-09-01 05:27:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-09-01 05:27:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2520 transitions. [2023-09-01 05:27:57,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40404040404040403 [2023-09-01 05:27:57,703 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2520 transitions. [2023-09-01 05:27:57,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2520 transitions. [2023-09-01 05:27:57,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:57,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2520 transitions. [2023-09-01 05:27:57,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 120.0) internal successors, (2520), 21 states have internal predecessors, (2520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:57,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 297.0) internal successors, (6534), 22 states have internal predecessors, (6534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:57,712 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 297.0) internal successors, (6534), 22 states have internal predecessors, (6534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:57,712 INFO L175 Difference]: Start difference. First operand has 105 places, 50 transitions, 551 flow. Second operand 21 states and 2520 transitions. [2023-09-01 05:27:57,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 55 transitions, 675 flow [2023-09-01 05:27:57,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 55 transitions, 601 flow, removed 2 selfloop flow, removed 13 redundant places. [2023-09-01 05:27:57,716 INFO L231 Difference]: Finished difference. Result has 113 places, 45 transitions, 496 flow [2023-09-01 05:27:57,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=496, PETRI_PLACES=113, PETRI_TRANSITIONS=45} [2023-09-01 05:27:57,719 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 83 predicate places. [2023-09-01 05:27:57,720 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 45 transitions, 496 flow [2023-09-01 05:27:57,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:57,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:57,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:57,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-09-01 05:27:57,721 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:57,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:57,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1223619678, now seen corresponding path program 13 times [2023-09-01 05:27:57,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:57,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341575645] [2023-09-01 05:27:57,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:57,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:58,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:58,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:58,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341575645] [2023-09-01 05:27:58,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341575645] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:58,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:58,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:27:58,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342708509] [2023-09-01 05:27:58,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:58,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:27:58,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:58,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:27:58,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:27:58,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:27:58,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 45 transitions, 496 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:58,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:27:58,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:27:58,910 INFO L130 PetriNetUnfolder]: 6/72 cut-off events. [2023-09-01 05:27:58,910 INFO L131 PetriNetUnfolder]: For 333/333 co-relation queries the response was YES. [2023-09-01 05:27:58,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 72 events. 6/72 cut-off events. For 333/333 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 279 event pairs, 1 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 476. Up to 33 conditions per place. [2023-09-01 05:27:58,911 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 23 selfloop transitions, 20 changer transitions 6/49 dead transitions. [2023-09-01 05:27:58,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 49 transitions, 605 flow [2023-09-01 05:27:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-09-01 05:27:58,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-09-01 05:27:58,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1454 transitions. [2023-09-01 05:27:58,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4079685746352413 [2023-09-01 05:27:58,913 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1454 transitions. [2023-09-01 05:27:58,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1454 transitions. [2023-09-01 05:27:58,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:27:58,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1454 transitions. [2023-09-01 05:27:58,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 121.16666666666667) internal successors, (1454), 12 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,918 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 297.0) internal successors, (3861), 13 states have internal predecessors, (3861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,918 INFO L175 Difference]: Start difference. First operand has 113 places, 45 transitions, 496 flow. Second operand 12 states and 1454 transitions. [2023-09-01 05:27:58,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 49 transitions, 605 flow [2023-09-01 05:27:58,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 49 transitions, 528 flow, removed 2 selfloop flow, removed 21 redundant places. [2023-09-01 05:27:58,922 INFO L231 Difference]: Finished difference. Result has 102 places, 41 transitions, 426 flow [2023-09-01 05:27:58,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=426, PETRI_PLACES=102, PETRI_TRANSITIONS=41} [2023-09-01 05:27:58,923 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 72 predicate places. [2023-09-01 05:27:58,923 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 41 transitions, 426 flow [2023-09-01 05:27:58,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:58,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:27:58,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:27:58,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-09-01 05:27:58,924 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:27:58,924 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:27:58,924 INFO L85 PathProgramCache]: Analyzing trace with hash 890644775, now seen corresponding path program 5 times [2023-09-01 05:27:58,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:27:58,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181255565] [2023-09-01 05:27:58,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:27:58,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:27:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:27:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:27:59,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:27:59,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181255565] [2023-09-01 05:27:59,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181255565] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:27:59,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:27:59,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-09-01 05:27:59,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997114248] [2023-09-01 05:27:59,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:27:59,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-01 05:27:59,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:27:59,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-01 05:27:59,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-09-01 05:27:59,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 297 [2023-09-01 05:27:59,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 41 transitions, 426 flow. Second operand has 9 states, 9 states have (on average 120.33333333333333) internal successors, (1083), 9 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:27:59,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:27:59,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 297 [2023-09-01 05:27:59,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:00,000 INFO L130 PetriNetUnfolder]: 5/63 cut-off events. [2023-09-01 05:28:00,001 INFO L131 PetriNetUnfolder]: For 347/347 co-relation queries the response was YES. [2023-09-01 05:28:00,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 63 events. 5/63 cut-off events. For 347/347 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 223 event pairs, 4 based on Foata normal form. 2/65 useless extension candidates. Maximal degree in co-relation 401. Up to 29 conditions per place. [2023-09-01 05:28:00,001 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 21 selfloop transitions, 13 changer transitions 10/44 dead transitions. [2023-09-01 05:28:00,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 44 transitions, 501 flow [2023-09-01 05:28:00,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:28:00,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:28:00,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 978 transitions. [2023-09-01 05:28:00,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4116161616161616 [2023-09-01 05:28:00,005 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 978 transitions. [2023-09-01 05:28:00,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 978 transitions. [2023-09-01 05:28:00,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:00,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 978 transitions. [2023-09-01 05:28:00,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 122.25) internal successors, (978), 8 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:00,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:00,009 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:00,009 INFO L175 Difference]: Start difference. First operand has 102 places, 41 transitions, 426 flow. Second operand 8 states and 978 transitions. [2023-09-01 05:28:00,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 44 transitions, 501 flow [2023-09-01 05:28:00,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 44 transitions, 435 flow, removed 3 selfloop flow, removed 13 redundant places. [2023-09-01 05:28:00,012 INFO L231 Difference]: Finished difference. Result has 90 places, 33 transitions, 309 flow [2023-09-01 05:28:00,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=309, PETRI_PLACES=90, PETRI_TRANSITIONS=33} [2023-09-01 05:28:00,012 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 60 predicate places. [2023-09-01 05:28:00,012 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 33 transitions, 309 flow [2023-09-01 05:28:00,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.33333333333333) internal successors, (1083), 9 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:00,013 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:00,013 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:00,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-09-01 05:28:00,013 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:00,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:00,014 INFO L85 PathProgramCache]: Analyzing trace with hash 538133185, now seen corresponding path program 6 times [2023-09-01 05:28:00,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:00,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254674416] [2023-09-01 05:28:00,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:00,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:00,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:00,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254674416] [2023-09-01 05:28:00,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254674416] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:00,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:00,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:28:00,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138165240] [2023-09-01 05:28:00,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:00,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:28:00,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:00,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:28:00,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:28:00,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-09-01 05:28:00,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 33 transitions, 309 flow. Second operand has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:00,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:00,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-09-01 05:28:00,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:00,853 INFO L130 PetriNetUnfolder]: 4/50 cut-off events. [2023-09-01 05:28:00,853 INFO L131 PetriNetUnfolder]: For 163/163 co-relation queries the response was YES. [2023-09-01 05:28:00,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 50 events. 4/50 cut-off events. For 163/163 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 148 event pairs, 3 based on Foata normal form. 2/52 useless extension candidates. Maximal degree in co-relation 303. Up to 25 conditions per place. [2023-09-01 05:28:00,854 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 24 selfloop transitions, 7 changer transitions 7/38 dead transitions. [2023-09-01 05:28:00,854 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 38 transitions, 389 flow [2023-09-01 05:28:00,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:28:00,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:28:00,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1022 transitions. [2023-09-01 05:28:00,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43013468013468015 [2023-09-01 05:28:00,855 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1022 transitions. [2023-09-01 05:28:00,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1022 transitions. [2023-09-01 05:28:00,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:00,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1022 transitions. [2023-09-01 05:28:00,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 127.75) internal successors, (1022), 8 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:00,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:00,858 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:00,858 INFO L175 Difference]: Start difference. First operand has 90 places, 33 transitions, 309 flow. Second operand 8 states and 1022 transitions. [2023-09-01 05:28:00,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 38 transitions, 389 flow [2023-09-01 05:28:00,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 38 transitions, 307 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-09-01 05:28:00,860 INFO L231 Difference]: Finished difference. Result has 75 places, 28 transitions, 203 flow [2023-09-01 05:28:00,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=203, PETRI_PLACES=75, PETRI_TRANSITIONS=28} [2023-09-01 05:28:00,861 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 45 predicate places. [2023-09-01 05:28:00,861 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 28 transitions, 203 flow [2023-09-01 05:28:00,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:00,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:00,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:00,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-09-01 05:28:00,862 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:00,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:00,863 INFO L85 PathProgramCache]: Analyzing trace with hash -253327982, now seen corresponding path program 14 times [2023-09-01 05:28:00,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:00,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448546560] [2023-09-01 05:28:00,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:00,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:01,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:01,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448546560] [2023-09-01 05:28:01,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448546560] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:01,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:01,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-01 05:28:01,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179831883] [2023-09-01 05:28:01,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:01,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-09-01 05:28:01,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:01,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-09-01 05:28:01,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-09-01 05:28:01,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-09-01 05:28:01,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 28 transitions, 203 flow. Second operand has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:01,986 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:01,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-09-01 05:28:01,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:02,277 INFO L130 PetriNetUnfolder]: 3/40 cut-off events. [2023-09-01 05:28:02,277 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2023-09-01 05:28:02,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 40 events. 3/40 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 99 event pairs, 0 based on Foata normal form. 2/42 useless extension candidates. Maximal degree in co-relation 226. Up to 14 conditions per place. [2023-09-01 05:28:02,277 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 12 selfloop transitions, 10 changer transitions 8/30 dead transitions. [2023-09-01 05:28:02,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 30 transitions, 261 flow [2023-09-01 05:28:02,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-09-01 05:28:02,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-09-01 05:28:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1324 transitions. [2023-09-01 05:28:02,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40526476890113255 [2023-09-01 05:28:02,279 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1324 transitions. [2023-09-01 05:28:02,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1324 transitions. [2023-09-01 05:28:02,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:02,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1324 transitions. [2023-09-01 05:28:02,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 120.36363636363636) internal successors, (1324), 11 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:02,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:02,286 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 297.0) internal successors, (3564), 12 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:02,286 INFO L175 Difference]: Start difference. First operand has 75 places, 28 transitions, 203 flow. Second operand 11 states and 1324 transitions. [2023-09-01 05:28:02,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 30 transitions, 261 flow [2023-09-01 05:28:02,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 30 transitions, 220 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-09-01 05:28:02,288 INFO L231 Difference]: Finished difference. Result has 66 places, 21 transitions, 150 flow [2023-09-01 05:28:02,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=150, PETRI_PLACES=66, PETRI_TRANSITIONS=21} [2023-09-01 05:28:02,291 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 36 predicate places. [2023-09-01 05:28:02,292 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 21 transitions, 150 flow [2023-09-01 05:28:02,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.2) internal successors, (1192), 10 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:02,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 05:28:02,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 05:28:02,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-09-01 05:28:02,292 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-09-01 05:28:02,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 05:28:02,293 INFO L85 PathProgramCache]: Analyzing trace with hash -318957407, now seen corresponding path program 7 times [2023-09-01 05:28:02,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 05:28:02,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470231502] [2023-09-01 05:28:02,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 05:28:02,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 05:28:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-01 05:28:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-01 05:28:02,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-01 05:28:02,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470231502] [2023-09-01 05:28:02,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470231502] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-01 05:28:02,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-01 05:28:02,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-01 05:28:02,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56676530] [2023-09-01 05:28:02,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-01 05:28:02,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-01 05:28:02,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-01 05:28:02,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-01 05:28:02,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-09-01 05:28:02,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-09-01 05:28:02,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 21 transitions, 150 flow. Second operand has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:02,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-09-01 05:28:02,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-09-01 05:28:02,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-09-01 05:28:03,028 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2023-09-01 05:28:03,028 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-09-01 05:28:03,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 23 events. 0/23 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 6/29 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-09-01 05:28:03,028 INFO L137 encePairwiseOnDemand]: 291/297 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-09-01 05:28:03,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 18 transitions, 125 flow [2023-09-01 05:28:03,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-01 05:28:03,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-09-01 05:28:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1008 transitions. [2023-09-01 05:28:03,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2023-09-01 05:28:03,029 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1008 transitions. [2023-09-01 05:28:03,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1008 transitions. [2023-09-01 05:28:03,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-09-01 05:28:03,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1008 transitions. [2023-09-01 05:28:03,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 126.0) internal successors, (1008), 8 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:03,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:03,036 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 297.0) internal successors, (2673), 9 states have internal predecessors, (2673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:03,036 INFO L175 Difference]: Start difference. First operand has 66 places, 21 transitions, 150 flow. Second operand 8 states and 1008 transitions. [2023-09-01 05:28:03,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 18 transitions, 125 flow [2023-09-01 05:28:03,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 18 transitions, 100 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-09-01 05:28:03,037 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-09-01 05:28:03,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-09-01 05:28:03,039 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2023-09-01 05:28:03,040 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-09-01 05:28:03,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-09-01 05:28:03,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-09-01 05:28:03,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-09-01 05:28:03,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-09-01 05:28:03,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-09-01 05:28:03,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-09-01 05:28:03,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-09-01 05:28:03,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-09-01 05:28:03,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-09-01 05:28:03,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-09-01 05:28:03,045 INFO L445 BasicCegarLoop]: Path program histogram: [14, 7, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-09-01 05:28:03,049 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 05:28:03,049 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 05:28:03,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 05:28:03 BasicIcfg [2023-09-01 05:28:03,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 05:28:03,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 05:28:03,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 05:28:03,054 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 05:28:03,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 05:27:08" (3/4) ... [2023-09-01 05:28:03,057 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-09-01 05:28:03,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-09-01 05:28:03,069 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-09-01 05:28:03,070 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-09-01 05:28:03,070 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-09-01 05:28:03,070 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-09-01 05:28:03,115 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 05:28:03,116 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 05:28:03,120 INFO L158 Benchmark]: Toolchain (without parser) took 56437.68ms. Allocated memory was 62.9MB in the beginning and 469.8MB in the end (delta: 406.8MB). Free memory was 42.0MB in the beginning and 231.9MB in the end (delta: -189.9MB). Peak memory consumption was 216.2MB. Max. memory is 16.1GB. [2023-09-01 05:28:03,121 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 05:28:03,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 979.38ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 41.8MB in the beginning and 49.9MB in the end (delta: -8.1MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2023-09-01 05:28:03,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.43ms. Allocated memory is still 79.7MB. Free memory was 49.9MB in the beginning and 46.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-09-01 05:28:03,122 INFO L158 Benchmark]: Boogie Preprocessor took 42.09ms. Allocated memory is still 79.7MB. Free memory was 46.6MB in the beginning and 43.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:28:03,122 INFO L158 Benchmark]: RCFGBuilder took 774.22ms. Allocated memory is still 79.7MB. Free memory was 43.7MB in the beginning and 38.3MB in the end (delta: 5.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-09-01 05:28:03,122 INFO L158 Benchmark]: TraceAbstraction took 54509.28ms. Allocated memory was 79.7MB in the beginning and 469.8MB in the end (delta: 390.1MB). Free memory was 37.9MB in the beginning and 235.0MB in the end (delta: -197.2MB). Peak memory consumption was 193.2MB. Max. memory is 16.1GB. [2023-09-01 05:28:03,123 INFO L158 Benchmark]: Witness Printer took 61.79ms. Allocated memory is still 469.8MB. Free memory was 235.0MB in the beginning and 231.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 05:28:03,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 50.3MB. Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 50.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 979.38ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 41.8MB in the beginning and 49.9MB in the end (delta: -8.1MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.43ms. Allocated memory is still 79.7MB. Free memory was 49.9MB in the beginning and 46.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.09ms. Allocated memory is still 79.7MB. Free memory was 46.6MB in the beginning and 43.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 774.22ms. Allocated memory is still 79.7MB. Free memory was 43.7MB in the beginning and 38.3MB in the end (delta: 5.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 54509.28ms. Allocated memory was 79.7MB in the beginning and 469.8MB in the end (delta: 390.1MB). Free memory was 37.9MB in the beginning and 235.0MB in the end (delta: -197.2MB). Peak memory consumption was 193.2MB. Max. memory is 16.1GB. * Witness Printer took 61.79ms. Allocated memory is still 469.8MB. Free memory was 235.0MB in the beginning and 231.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 137 PlacesBefore, 30 PlacesAfterwards, 134 TransitionsBefore, 24 TransitionsAfterwards, 2288 CoEnabledTransitionPairs, 8 FixpointIterations, 56 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 133 TotalNumberOfCompositions, 6163 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2494, independent: 2240, independent conditional: 0, independent unconditional: 2240, dependent: 254, dependent conditional: 0, dependent unconditional: 254, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1354, independent: 1289, independent conditional: 0, independent unconditional: 1289, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2494, independent: 951, independent conditional: 0, independent unconditional: 951, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 1354, unknown conditional: 0, unknown unconditional: 1354] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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, 170 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: 54.4s, OverallIterations: 39, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 25.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8156 SdHoareTripleChecker+Valid, 16.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6183 mSDsluCounter, 3623 SdHoareTripleChecker+Invalid, 14.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3285 mSDsCounter, 1131 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25560 IncrementalHoareTripleChecker+Invalid, 26691 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1131 mSolverCounterUnsat, 338 mSDtfsCounter, 25560 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 522 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 519 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1073 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1267occurred in iteration=26, InterpolantAutomatonStates: 430, 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, 20.5s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 355 ConstructedInterpolants, 0 QuantifiedInterpolants, 6214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 39 InterpolantComputations, 39 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-09-01 05:28:03,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE