./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 TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-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 TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:06:04,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:06:04,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:06:04,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:06:04,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:06:04,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:06:04,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:06:04,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:06:04,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:06:04,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:06:04,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:06:04,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:06:04,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:06:04,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:06:04,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:06:04,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:06:04,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:06:04,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:06:04,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:06:04,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:06:04,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:06:04,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:06:04,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:06:04,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:06:04,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:06:04,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:06:04,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:06:04,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:06:04,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:06:04,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:06:04,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:06:04,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:06:04,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:06:04,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:06:04,744 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:06:04,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:06:04,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:06:04,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:06:04,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:06:04,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:06:04,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:06:04,748 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:06:04,784 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:06:04,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:06:04,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:06:04,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:06:04,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:06:04,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:06:04,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:06:04,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:06:04,788 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:06:04,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:06:04,789 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:06:04,789 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:06:04,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:06:04,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:06:04,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:06:04,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:06:04,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:06:04,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:06:04,791 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:06:04,791 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:06:04,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:06:04,791 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:06:04,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:06:04,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:06:04,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:06:04,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:06:04,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:06:04,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:06:04,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:06:04,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:06:04,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:06:04,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:06:04,794 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:06:04,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:06:04,794 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:06:04,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:06:04,795 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:06:04,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:06:05,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:06:05,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:06:05,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:06:05,119 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:06:05,120 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:06:05,121 INFO L432 ainManager$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 [2023-08-30 13:06:06,389 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:06:06,761 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:06:06,762 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2023-08-30 13:06:06,790 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ebe0b8f2/2cefcf3728c74b5dab857169a41d70f9/FLAGc284b0d10 [2023-08-30 13:06:06,809 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ebe0b8f2/2cefcf3728c74b5dab857169a41d70f9 [2023-08-30 13:06:06,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:06:06,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:06:06,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:06:06,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:06:06,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:06:06,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:06:06" (1/1) ... [2023-08-30 13:06:06,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbc300c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:06, skipping insertion in model container [2023-08-30 13:06:06,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:06:06" (1/1) ... [2023-08-30 13:06:06,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:06:06,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:06:07,047 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:06:07,448 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] [2023-08-30 13:06:07,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:06:07,506 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:06:07,516 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:06:07,628 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] [2023-08-30 13:06:07,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:06:07,749 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:07,749 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:07,749 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:07,755 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:06:07,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07 WrapperNode [2023-08-30 13:06:07,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:06:07,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:07,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:06:07,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:06:07,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,826 INFO L138 Inliner]: procedures = 468, calls = 52, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 135 [2023-08-30 13:06:07,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:07,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:06:07,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:06:07,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:06:07,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,866 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:06:07,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:06:07,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:06:07,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:06:07,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (1/1) ... [2023-08-30 13:06:07,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:06:07,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:06:07,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:06:07,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:06:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:06:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:06:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:06:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:06:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:06:07,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:06:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:06:07,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:06:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-30 13:06:07,949 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-30 13:06:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:06:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:06:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:06:07,951 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:06:08,211 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:06:08,212 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:06:08,513 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:06:08,550 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:06:08,551 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:06:08,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:08 BoogieIcfgContainer [2023-08-30 13:06:08,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:06:08,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:06:08,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:06:08,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:06:08,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:06:06" (1/3) ... [2023-08-30 13:06:08,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a3e942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:06:08, skipping insertion in model container [2023-08-30 13:06:08,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:07" (2/3) ... [2023-08-30 13:06:08,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a3e942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:06:08, skipping insertion in model container [2023-08-30 13:06:08,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:08" (3/3) ... [2023-08-30 13:06:08,563 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2023-08-30 13:06:08,570 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:06:08,580 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:06:08,580 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 13:06:08,580 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:06:08,670 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:06:08,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 164 transitions, 344 flow [2023-08-30 13:06:08,795 INFO L130 PetriNetUnfolder]: 10/200 cut-off events. [2023-08-30 13:06:08,796 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:06:08,801 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. [2023-08-30 13:06:08,801 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 164 transitions, 344 flow [2023-08-30 13:06:08,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 134 transitions, 277 flow [2023-08-30 13:06:08,810 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:06:08,818 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 134 transitions, 277 flow [2023-08-30 13:06:08,820 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 134 transitions, 277 flow [2023-08-30 13:06:08,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 134 transitions, 277 flow [2023-08-30 13:06:08,860 INFO L130 PetriNetUnfolder]: 4/134 cut-off events. [2023-08-30 13:06:08,860 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:06:08,861 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. [2023-08-30 13:06:08,863 INFO L119 LiptonReduction]: Number of co-enabled transitions 2288 [2023-08-30 13:06:14,987 INFO L134 LiptonReduction]: Checked pairs total: 6163 [2023-08-30 13:06:14,987 INFO L136 LiptonReduction]: Total number of compositions: 133 [2023-08-30 13:06:14,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:06:15,004 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;@5a1a2d2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:06:15,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 13:06:15,008 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-30 13:06:15,008 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:06:15,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:15,009 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 13:06:15,010 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:15,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:15,014 INFO L85 PathProgramCache]: Analyzing trace with hash 16954422, now seen corresponding path program 1 times [2023-08-30 13:06:15,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:15,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718568576] [2023-08-30 13:06:15,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:15,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:15,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:15,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718568576] [2023-08-30 13:06:15,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718568576] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:15,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:15,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:06:15,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306394586] [2023-08-30 13:06:15,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:15,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:06:15,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:15,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:06:15,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:06:16,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 297 [2023-08-30 13:06:16,088 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) [2023-08-30 13:06:16,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:16,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 297 [2023-08-30 13:06:16,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:16,201 INFO L130 PetriNetUnfolder]: 108/209 cut-off events. [2023-08-30 13:06:16,202 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-08-30 13:06:16,202 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. [2023-08-30 13:06:16,204 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 18 selfloop transitions, 5 changer transitions 0/23 dead transitions. [2023-08-30 13:06:16,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 23 transitions, 101 flow [2023-08-30 13:06:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:06:16,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:06:16,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 546 transitions. [2023-08-30 13:06:16,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4595959595959596 [2023-08-30 13:06:16,219 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 546 transitions. [2023-08-30 13:06:16,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 546 transitions. [2023-08-30 13:06:16,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:16,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 546 transitions. [2023-08-30 13:06:16,228 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) [2023-08-30 13:06:16,232 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) [2023-08-30 13:06:16,233 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) [2023-08-30 13:06:16,235 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 57 flow. Second operand 4 states and 546 transitions. [2023-08-30 13:06:16,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 23 transitions, 101 flow [2023-08-30 13:06:16,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 23 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:16,239 INFO L231 Difference]: Finished difference. Result has 27 places, 22 transitions, 74 flow [2023-08-30 13:06:16,241 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} [2023-08-30 13:06:16,244 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, -3 predicate places. [2023-08-30 13:06:16,244 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 74 flow [2023-08-30 13:06:16,245 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) [2023-08-30 13:06:16,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:16,245 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:06:16,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:06:16,246 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:16,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:16,246 INFO L85 PathProgramCache]: Analyzing trace with hash 525591541, now seen corresponding path program 1 times [2023-08-30 13:06:16,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:16,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206021220] [2023-08-30 13:06:16,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:16,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:16,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:16,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206021220] [2023-08-30 13:06:16,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206021220] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:16,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:16,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:06:16,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126087631] [2023-08-30 13:06:16,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:16,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:06:16,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:16,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:06:16,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:06:16,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2023-08-30 13:06:16,764 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) [2023-08-30 13:06:16,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:16,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2023-08-30 13:06:16,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:16,882 INFO L130 PetriNetUnfolder]: 140/263 cut-off events. [2023-08-30 13:06:16,882 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2023-08-30 13:06:16,883 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. [2023-08-30 13:06:16,885 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 29 selfloop transitions, 10 changer transitions 4/43 dead transitions. [2023-08-30 13:06:16,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 43 transitions, 216 flow [2023-08-30 13:06:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:06:16,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:06:16,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 559 transitions. [2023-08-30 13:06:16,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47053872053872053 [2023-08-30 13:06:16,888 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 559 transitions. [2023-08-30 13:06:16,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 559 transitions. [2023-08-30 13:06:16,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:16,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 559 transitions. [2023-08-30 13:06:16,890 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) [2023-08-30 13:06:16,892 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) [2023-08-30 13:06:16,893 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) [2023-08-30 13:06:16,893 INFO L175 Difference]: Start difference. First operand has 27 places, 22 transitions, 74 flow. Second operand 4 states and 559 transitions. [2023-08-30 13:06:16,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 43 transitions, 216 flow [2023-08-30 13:06:16,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 43 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 13:06:16,895 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 128 flow [2023-08-30 13:06:16,896 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} [2023-08-30 13:06:16,896 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2023-08-30 13:06:16,897 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 128 flow [2023-08-30 13:06:16,897 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) [2023-08-30 13:06:16,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:16,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:06:16,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:06:16,898 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:16,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:16,899 INFO L85 PathProgramCache]: Analyzing trace with hash 525589681, now seen corresponding path program 2 times [2023-08-30 13:06:16,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:16,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929399152] [2023-08-30 13:06:16,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:16,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:17,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:17,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:17,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929399152] [2023-08-30 13:06:17,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929399152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:17,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:17,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:06:17,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462982593] [2023-08-30 13:06:17,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:17,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:06:17,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:17,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:06:17,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:06:17,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2023-08-30 13:06:17,408 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) [2023-08-30 13:06:17,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:17,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2023-08-30 13:06:17,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:17,557 INFO L130 PetriNetUnfolder]: 126/238 cut-off events. [2023-08-30 13:06:17,557 INFO L131 PetriNetUnfolder]: For 168/168 co-relation queries the response was YES. [2023-08-30 13:06:17,560 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. [2023-08-30 13:06:17,562 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 30 selfloop transitions, 11 changer transitions 2/43 dead transitions. [2023-08-30 13:06:17,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 269 flow [2023-08-30 13:06:17,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:06:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:06:17,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 557 transitions. [2023-08-30 13:06:17,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46885521885521886 [2023-08-30 13:06:17,565 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 557 transitions. [2023-08-30 13:06:17,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 557 transitions. [2023-08-30 13:06:17,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:17,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 557 transitions. [2023-08-30 13:06:17,567 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) [2023-08-30 13:06:17,569 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) [2023-08-30 13:06:17,570 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) [2023-08-30 13:06:17,570 INFO L175 Difference]: Start difference. First operand has 32 places, 26 transitions, 128 flow. Second operand 4 states and 557 transitions. [2023-08-30 13:06:17,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 269 flow [2023-08-30 13:06:17,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:17,574 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 166 flow [2023-08-30 13:06:17,574 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} [2023-08-30 13:06:17,576 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2023-08-30 13:06:17,578 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 166 flow [2023-08-30 13:06:17,579 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) [2023-08-30 13:06:17,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:17,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:06:17,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:06:17,580 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:17,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:17,581 INFO L85 PathProgramCache]: Analyzing trace with hash -886633492, now seen corresponding path program 1 times [2023-08-30 13:06:17,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:17,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217084890] [2023-08-30 13:06:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:17,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:17,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:17,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:17,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217084890] [2023-08-30 13:06:17,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217084890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:17,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:17,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:06:17,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749795475] [2023-08-30 13:06:17,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:17,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:06:17,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:17,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:06:17,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:06:18,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2023-08-30 13:06:18,051 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) [2023-08-30 13:06:18,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:18,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2023-08-30 13:06:18,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:18,162 INFO L130 PetriNetUnfolder]: 96/188 cut-off events. [2023-08-30 13:06:18,163 INFO L131 PetriNetUnfolder]: For 285/285 co-relation queries the response was YES. [2023-08-30 13:06:18,163 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. [2023-08-30 13:06:18,164 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 28 selfloop transitions, 11 changer transitions 2/41 dead transitions. [2023-08-30 13:06:18,165 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 41 transitions, 301 flow [2023-08-30 13:06:18,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:06:18,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:06:18,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 553 transitions. [2023-08-30 13:06:18,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4654882154882155 [2023-08-30 13:06:18,167 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 553 transitions. [2023-08-30 13:06:18,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 553 transitions. [2023-08-30 13:06:18,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:18,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 553 transitions. [2023-08-30 13:06:18,169 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) [2023-08-30 13:06:18,171 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) [2023-08-30 13:06:18,172 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) [2023-08-30 13:06:18,172 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 166 flow. Second operand 4 states and 553 transitions. [2023-08-30 13:06:18,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 41 transitions, 301 flow [2023-08-30 13:06:18,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 41 transitions, 282 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:18,175 INFO L231 Difference]: Finished difference. Result has 39 places, 30 transitions, 213 flow [2023-08-30 13:06:18,176 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} [2023-08-30 13:06:18,176 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2023-08-30 13:06:18,176 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 213 flow [2023-08-30 13:06:18,177 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) [2023-08-30 13:06:18,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:18,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:18,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:06:18,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:18,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1714480928, now seen corresponding path program 1 times [2023-08-30 13:06:18,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:18,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746263747] [2023-08-30 13:06:18,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:18,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:18,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:18,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746263747] [2023-08-30 13:06:18,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746263747] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:18,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:18,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:18,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287088206] [2023-08-30 13:06:18,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:18,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:18,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:18,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:18,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:18,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 297 [2023-08-30 13:06:18,889 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) [2023-08-30 13:06:18,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:18,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 297 [2023-08-30 13:06:18,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:19,005 INFO L130 PetriNetUnfolder]: 84/168 cut-off events. [2023-08-30 13:06:19,005 INFO L131 PetriNetUnfolder]: For 456/456 co-relation queries the response was YES. [2023-08-30 13:06:19,006 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. [2023-08-30 13:06:19,007 INFO L137 encePairwiseOnDemand]: 291/297 looper letters, 27 selfloop transitions, 11 changer transitions 2/40 dead transitions. [2023-08-30 13:06:19,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 327 flow [2023-08-30 13:06:19,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:06:19,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:06:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 551 transitions. [2023-08-30 13:06:19,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46380471380471383 [2023-08-30 13:06:19,009 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 551 transitions. [2023-08-30 13:06:19,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 551 transitions. [2023-08-30 13:06:19,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:19,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 551 transitions. [2023-08-30 13:06:19,011 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) [2023-08-30 13:06:19,014 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) [2023-08-30 13:06:19,014 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) [2023-08-30 13:06:19,014 INFO L175 Difference]: Start difference. First operand has 39 places, 30 transitions, 213 flow. Second operand 4 states and 551 transitions. [2023-08-30 13:06:19,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 327 flow [2023-08-30 13:06:19,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 40 transitions, 313 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:19,019 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 242 flow [2023-08-30 13:06:19,019 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} [2023-08-30 13:06:19,021 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 12 predicate places. [2023-08-30 13:06:19,021 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 242 flow [2023-08-30 13:06:19,021 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) [2023-08-30 13:06:19,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:19,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:19,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:06:19,022 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:19,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:19,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1715832209, now seen corresponding path program 1 times [2023-08-30 13:06:19,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:19,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069683542] [2023-08-30 13:06:19,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:19,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:19,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:19,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069683542] [2023-08-30 13:06:19,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069683542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:19,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:19,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:19,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874171590] [2023-08-30 13:06:19,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:19,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:19,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:19,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:19,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:19,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2023-08-30 13:06:19,576 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) [2023-08-30 13:06:19,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:19,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2023-08-30 13:06:19,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:19,690 INFO L130 PetriNetUnfolder]: 72/148 cut-off events. [2023-08-30 13:06:19,690 INFO L131 PetriNetUnfolder]: For 549/549 co-relation queries the response was YES. [2023-08-30 13:06:19,691 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. [2023-08-30 13:06:19,692 INFO L137 encePairwiseOnDemand]: 291/297 looper letters, 24 selfloop transitions, 12 changer transitions 2/38 dead transitions. [2023-08-30 13:06:19,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 345 flow [2023-08-30 13:06:19,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:06:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:06:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 539 transitions. [2023-08-30 13:06:19,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2023-08-30 13:06:19,695 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 539 transitions. [2023-08-30 13:06:19,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 539 transitions. [2023-08-30 13:06:19,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:19,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 539 transitions. [2023-08-30 13:06:19,696 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) [2023-08-30 13:06:19,698 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) [2023-08-30 13:06:19,699 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) [2023-08-30 13:06:19,699 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 242 flow. Second operand 4 states and 539 transitions. [2023-08-30 13:06:19,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 345 flow [2023-08-30 13:06:19,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 38 transitions, 323 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-30 13:06:19,702 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 269 flow [2023-08-30 13:06:19,702 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} [2023-08-30 13:06:19,702 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2023-08-30 13:06:19,703 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 269 flow [2023-08-30 13:06:19,703 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) [2023-08-30 13:06:19,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:19,703 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:19,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:06:19,704 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:19,704 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:19,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1641497079, now seen corresponding path program 1 times [2023-08-30 13:06:19,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:19,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397088421] [2023-08-30 13:06:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:19,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:20,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:20,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397088421] [2023-08-30 13:06:20,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397088421] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:20,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:20,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583801226] [2023-08-30 13:06:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:20,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:20,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:20,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:20,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:20,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-08-30 13:06:20,661 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) [2023-08-30 13:06:20,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:20,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-08-30 13:06:20,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:21,007 INFO L130 PetriNetUnfolder]: 89/189 cut-off events. [2023-08-30 13:06:21,007 INFO L131 PetriNetUnfolder]: For 639/639 co-relation queries the response was YES. [2023-08-30 13:06:21,008 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. [2023-08-30 13:06:21,008 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 35 selfloop transitions, 26 changer transitions 7/68 dead transitions. [2023-08-30 13:06:21,009 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 555 flow [2023-08-30 13:06:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:21,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:21,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1447 transitions. [2023-08-30 13:06:21,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44291398836853385 [2023-08-30 13:06:21,013 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1447 transitions. [2023-08-30 13:06:21,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1447 transitions. [2023-08-30 13:06:21,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:21,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1447 transitions. [2023-08-30 13:06:21,017 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) [2023-08-30 13:06:21,021 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) [2023-08-30 13:06:21,021 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) [2023-08-30 13:06:21,022 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 269 flow. Second operand 11 states and 1447 transitions. [2023-08-30 13:06:21,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 555 flow [2023-08-30 13:06:21,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 68 transitions, 529 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-08-30 13:06:21,025 INFO L231 Difference]: Finished difference. Result has 54 places, 41 transitions, 372 flow [2023-08-30 13:06:21,025 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} [2023-08-30 13:06:21,026 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 24 predicate places. [2023-08-30 13:06:21,026 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 41 transitions, 372 flow [2023-08-30 13:06:21,026 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) [2023-08-30 13:06:21,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:21,027 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:21,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 13:06:21,027 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:21,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:21,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1647779230, now seen corresponding path program 1 times [2023-08-30 13:06:21,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:21,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928487925] [2023-08-30 13:06:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:21,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:21,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:21,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:21,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928487925] [2023-08-30 13:06:21,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928487925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:21,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:21,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:21,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416358507] [2023-08-30 13:06:21,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:21,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:21,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:21,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:21,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:21,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-08-30 13:06:21,731 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) [2023-08-30 13:06:21,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:21,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-08-30 13:06:21,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:22,056 INFO L130 PetriNetUnfolder]: 91/214 cut-off events. [2023-08-30 13:06:22,057 INFO L131 PetriNetUnfolder]: For 787/787 co-relation queries the response was YES. [2023-08-30 13:06:22,057 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. [2023-08-30 13:06:22,059 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 44 selfloop transitions, 27 changer transitions 6/77 dead transitions. [2023-08-30 13:06:22,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 77 transitions, 651 flow [2023-08-30 13:06:22,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:22,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:22,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1704 transitions. [2023-08-30 13:06:22,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44133644133644134 [2023-08-30 13:06:22,065 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1704 transitions. [2023-08-30 13:06:22,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1704 transitions. [2023-08-30 13:06:22,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:22,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1704 transitions. [2023-08-30 13:06:22,070 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) [2023-08-30 13:06:22,076 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) [2023-08-30 13:06:22,078 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) [2023-08-30 13:06:22,078 INFO L175 Difference]: Start difference. First operand has 54 places, 41 transitions, 372 flow. Second operand 13 states and 1704 transitions. [2023-08-30 13:06:22,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 77 transitions, 651 flow [2023-08-30 13:06:22,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 77 transitions, 576 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:22,083 INFO L231 Difference]: Finished difference. Result has 62 places, 46 transitions, 409 flow [2023-08-30 13:06:22,083 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} [2023-08-30 13:06:22,084 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 32 predicate places. [2023-08-30 13:06:22,084 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 46 transitions, 409 flow [2023-08-30 13:06:22,085 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) [2023-08-30 13:06:22,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:22,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:22,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 13:06:22,085 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:22,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:22,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1647753190, now seen corresponding path program 2 times [2023-08-30 13:06:22,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:22,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027118285] [2023-08-30 13:06:22,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:22,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:22,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:22,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027118285] [2023-08-30 13:06:22,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027118285] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:22,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:22,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:22,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819958569] [2023-08-30 13:06:22,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:22,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:22,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:22,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:22,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:22,864 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-08-30 13:06:22,865 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) [2023-08-30 13:06:22,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:22,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-08-30 13:06:22,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:23,177 INFO L130 PetriNetUnfolder]: 88/208 cut-off events. [2023-08-30 13:06:23,177 INFO L131 PetriNetUnfolder]: For 667/667 co-relation queries the response was YES. [2023-08-30 13:06:23,178 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. [2023-08-30 13:06:23,179 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 34 selfloop transitions, 32 changer transitions 4/70 dead transitions. [2023-08-30 13:06:23,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 70 transitions, 625 flow [2023-08-30 13:06:23,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:23,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:23,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1443 transitions. [2023-08-30 13:06:23,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44168962350780533 [2023-08-30 13:06:23,184 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1443 transitions. [2023-08-30 13:06:23,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1443 transitions. [2023-08-30 13:06:23,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:23,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1443 transitions. [2023-08-30 13:06:23,188 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) [2023-08-30 13:06:23,192 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) [2023-08-30 13:06:23,193 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) [2023-08-30 13:06:23,194 INFO L175 Difference]: Start difference. First operand has 62 places, 46 transitions, 409 flow. Second operand 11 states and 1443 transitions. [2023-08-30 13:06:23,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 70 transitions, 625 flow [2023-08-30 13:06:23,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 70 transitions, 555 flow, removed 7 selfloop flow, removed 9 redundant places. [2023-08-30 13:06:23,198 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 416 flow [2023-08-30 13:06:23,198 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} [2023-08-30 13:06:23,199 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 33 predicate places. [2023-08-30 13:06:23,199 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 416 flow [2023-08-30 13:06:23,200 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) [2023-08-30 13:06:23,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:23,200 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:23,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 13:06:23,200 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:23,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:23,201 INFO L85 PathProgramCache]: Analyzing trace with hash 345614619, now seen corresponding path program 2 times [2023-08-30 13:06:23,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:23,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078885966] [2023-08-30 13:06:23,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:23,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:23,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:23,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078885966] [2023-08-30 13:06:23,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078885966] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:23,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:23,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:23,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146928667] [2023-08-30 13:06:23,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:23,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:23,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:23,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:23,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:23,955 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2023-08-30 13:06:23,956 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) [2023-08-30 13:06:23,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:23,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2023-08-30 13:06:23,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:24,305 INFO L130 PetriNetUnfolder]: 87/211 cut-off events. [2023-08-30 13:06:24,305 INFO L131 PetriNetUnfolder]: For 642/642 co-relation queries the response was YES. [2023-08-30 13:06:24,306 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. [2023-08-30 13:06:24,307 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 41 selfloop transitions, 28 changer transitions 4/73 dead transitions. [2023-08-30 13:06:24,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 73 transitions, 617 flow [2023-08-30 13:06:24,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:24,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:24,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1589 transitions. [2023-08-30 13:06:24,313 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4458473625140292 [2023-08-30 13:06:24,313 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1589 transitions. [2023-08-30 13:06:24,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1589 transitions. [2023-08-30 13:06:24,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:24,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1589 transitions. [2023-08-30 13:06:24,318 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) [2023-08-30 13:06:24,323 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) [2023-08-30 13:06:24,324 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) [2023-08-30 13:06:24,324 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 416 flow. Second operand 12 states and 1589 transitions. [2023-08-30 13:06:24,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 73 transitions, 617 flow [2023-08-30 13:06:24,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 73 transitions, 532 flow, removed 6 selfloop flow, removed 12 redundant places. [2023-08-30 13:06:24,329 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 370 flow [2023-08-30 13:06:24,330 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} [2023-08-30 13:06:24,331 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 32 predicate places. [2023-08-30 13:06:24,331 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 370 flow [2023-08-30 13:06:24,331 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) [2023-08-30 13:06:24,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:24,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:24,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 13:06:24,332 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:24,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:24,333 INFO L85 PathProgramCache]: Analyzing trace with hash 349063546, now seen corresponding path program 1 times [2023-08-30 13:06:24,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:24,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913127997] [2023-08-30 13:06:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:24,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:24,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:24,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913127997] [2023-08-30 13:06:24,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913127997] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:24,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:24,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:24,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961057889] [2023-08-30 13:06:24,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:24,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:06:24,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:24,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:06:24,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:06:24,730 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2023-08-30 13:06:24,730 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) [2023-08-30 13:06:24,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:24,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2023-08-30 13:06:24,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:24,893 INFO L130 PetriNetUnfolder]: 89/225 cut-off events. [2023-08-30 13:06:24,893 INFO L131 PetriNetUnfolder]: For 471/471 co-relation queries the response was YES. [2023-08-30 13:06:24,894 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. [2023-08-30 13:06:24,895 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 37 selfloop transitions, 26 changer transitions 2/65 dead transitions. [2023-08-30 13:06:24,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 65 transitions, 566 flow [2023-08-30 13:06:24,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:24,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 840 transitions. [2023-08-30 13:06:24,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4713804713804714 [2023-08-30 13:06:24,898 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 840 transitions. [2023-08-30 13:06:24,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 840 transitions. [2023-08-30 13:06:24,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:24,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 840 transitions. [2023-08-30 13:06:24,901 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) [2023-08-30 13:06:24,904 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) [2023-08-30 13:06:24,905 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) [2023-08-30 13:06:24,905 INFO L175 Difference]: Start difference. First operand has 62 places, 45 transitions, 370 flow. Second operand 6 states and 840 transitions. [2023-08-30 13:06:24,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 65 transitions, 566 flow [2023-08-30 13:06:24,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 522 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:24,908 INFO L231 Difference]: Finished difference. Result has 64 places, 47 transitions, 435 flow [2023-08-30 13:06:24,909 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} [2023-08-30 13:06:24,909 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places. [2023-08-30 13:06:24,909 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 47 transitions, 435 flow [2023-08-30 13:06:24,910 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) [2023-08-30 13:06:24,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:24,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:24,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 13:06:24,910 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:24,911 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:24,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1648553690, now seen corresponding path program 3 times [2023-08-30 13:06:24,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:24,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081009436] [2023-08-30 13:06:24,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:24,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:25,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:25,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:25,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081009436] [2023-08-30 13:06:25,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081009436] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:25,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:25,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:25,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020232131] [2023-08-30 13:06:25,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:25,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:25,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:25,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:25,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:25,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-08-30 13:06:25,692 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) [2023-08-30 13:06:25,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:25,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-08-30 13:06:25,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:26,004 INFO L130 PetriNetUnfolder]: 87/218 cut-off events. [2023-08-30 13:06:26,004 INFO L131 PetriNetUnfolder]: For 690/690 co-relation queries the response was YES. [2023-08-30 13:06:26,005 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. [2023-08-30 13:06:26,006 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 32 selfloop transitions, 32 changer transitions 4/68 dead transitions. [2023-08-30 13:06:26,006 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 68 transitions, 636 flow [2023-08-30 13:06:26,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:26,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:26,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1437 transitions. [2023-08-30 13:06:26,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4398530762167126 [2023-08-30 13:06:26,011 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1437 transitions. [2023-08-30 13:06:26,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1437 transitions. [2023-08-30 13:06:26,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:26,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1437 transitions. [2023-08-30 13:06:26,015 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) [2023-08-30 13:06:26,019 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) [2023-08-30 13:06:26,031 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) [2023-08-30 13:06:26,032 INFO L175 Difference]: Start difference. First operand has 64 places, 47 transitions, 435 flow. Second operand 11 states and 1437 transitions. [2023-08-30 13:06:26,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 68 transitions, 636 flow [2023-08-30 13:06:26,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 608 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:26,037 INFO L231 Difference]: Finished difference. Result has 74 places, 49 transitions, 524 flow [2023-08-30 13:06:26,037 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} [2023-08-30 13:06:26,038 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 44 predicate places. [2023-08-30 13:06:26,038 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 49 transitions, 524 flow [2023-08-30 13:06:26,039 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) [2023-08-30 13:06:26,039 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:26,039 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:26,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 13:06:26,039 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:26,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:26,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1648553691, now seen corresponding path program 3 times [2023-08-30 13:06:26,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:26,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443549019] [2023-08-30 13:06:26,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:26,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:26,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:26,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:26,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443549019] [2023-08-30 13:06:26,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443549019] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:26,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:26,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:26,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136432467] [2023-08-30 13:06:26,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:26,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:26,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:26,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:26,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:26,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 297 [2023-08-30 13:06:26,559 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) [2023-08-30 13:06:26,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:26,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 297 [2023-08-30 13:06:26,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:26,786 INFO L130 PetriNetUnfolder]: 85/211 cut-off events. [2023-08-30 13:06:26,786 INFO L131 PetriNetUnfolder]: For 905/905 co-relation queries the response was YES. [2023-08-30 13:06:26,787 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. [2023-08-30 13:06:26,788 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 33 selfloop transitions, 26 changer transitions 2/61 dead transitions. [2023-08-30 13:06:26,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 61 transitions, 666 flow [2023-08-30 13:06:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:26,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:26,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1056 transitions. [2023-08-30 13:06:26,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2023-08-30 13:06:26,792 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1056 transitions. [2023-08-30 13:06:26,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1056 transitions. [2023-08-30 13:06:26,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:26,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1056 transitions. [2023-08-30 13:06:26,795 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) [2023-08-30 13:06:26,798 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) [2023-08-30 13:06:26,799 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) [2023-08-30 13:06:26,799 INFO L175 Difference]: Start difference. First operand has 74 places, 49 transitions, 524 flow. Second operand 8 states and 1056 transitions. [2023-08-30 13:06:26,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 61 transitions, 666 flow [2023-08-30 13:06:26,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 61 transitions, 609 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-30 13:06:26,805 INFO L231 Difference]: Finished difference. Result has 74 places, 48 transitions, 508 flow [2023-08-30 13:06:26,805 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} [2023-08-30 13:06:26,807 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 44 predicate places. [2023-08-30 13:06:26,807 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 48 transitions, 508 flow [2023-08-30 13:06:26,807 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) [2023-08-30 13:06:26,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:26,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:26,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 13:06:26,808 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:26,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:26,808 INFO L85 PathProgramCache]: Analyzing trace with hash 349063547, now seen corresponding path program 1 times [2023-08-30 13:06:26,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:26,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328624622] [2023-08-30 13:06:26,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:26,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:26,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:27,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:27,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:27,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328624622] [2023-08-30 13:06:27,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328624622] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:27,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:27,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:27,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267465716] [2023-08-30 13:06:27,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:27,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:27,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:27,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:27,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:27,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-08-30 13:06:27,474 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) [2023-08-30 13:06:27,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:27,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-08-30 13:06:27,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:27,713 INFO L130 PetriNetUnfolder]: 82/216 cut-off events. [2023-08-30 13:06:27,714 INFO L131 PetriNetUnfolder]: For 989/989 co-relation queries the response was YES. [2023-08-30 13:06:27,715 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. [2023-08-30 13:06:27,716 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 37 selfloop transitions, 17 changer transitions 13/67 dead transitions. [2023-08-30 13:06:27,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 67 transitions, 741 flow [2023-08-30 13:06:27,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:27,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:27,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1179 transitions. [2023-08-30 13:06:27,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44107744107744107 [2023-08-30 13:06:27,721 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1179 transitions. [2023-08-30 13:06:27,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1179 transitions. [2023-08-30 13:06:27,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:27,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1179 transitions. [2023-08-30 13:06:27,725 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) [2023-08-30 13:06:27,728 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) [2023-08-30 13:06:27,728 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) [2023-08-30 13:06:27,728 INFO L175 Difference]: Start difference. First operand has 74 places, 48 transitions, 508 flow. Second operand 9 states and 1179 transitions. [2023-08-30 13:06:27,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 67 transitions, 741 flow [2023-08-30 13:06:27,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 67 transitions, 674 flow, removed 1 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:27,733 INFO L231 Difference]: Finished difference. Result has 76 places, 46 transitions, 470 flow [2023-08-30 13:06:27,734 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} [2023-08-30 13:06:27,734 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 46 predicate places. [2023-08-30 13:06:27,735 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 46 transitions, 470 flow [2023-08-30 13:06:27,735 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) [2023-08-30 13:06:27,735 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:27,735 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:27,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 13:06:27,736 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:27,736 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:27,736 INFO L85 PathProgramCache]: Analyzing trace with hash 348977056, now seen corresponding path program 2 times [2023-08-30 13:06:27,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:27,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763375364] [2023-08-30 13:06:27,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:27,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:27,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:27,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:27,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763375364] [2023-08-30 13:06:27,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763375364] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:27,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:27,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:27,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906332465] [2023-08-30 13:06:27,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:27,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:06:27,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:27,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:06:27,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:06:28,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 297 [2023-08-30 13:06:28,011 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) [2023-08-30 13:06:28,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:28,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 297 [2023-08-30 13:06:28,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:28,181 INFO L130 PetriNetUnfolder]: 73/187 cut-off events. [2023-08-30 13:06:28,182 INFO L131 PetriNetUnfolder]: For 826/826 co-relation queries the response was YES. [2023-08-30 13:06:28,182 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. [2023-08-30 13:06:28,183 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 37 selfloop transitions, 25 changer transitions 2/64 dead transitions. [2023-08-30 13:06:28,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 64 transitions, 654 flow [2023-08-30 13:06:28,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:28,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:28,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 974 transitions. [2023-08-30 13:06:28,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4684944684944685 [2023-08-30 13:06:28,186 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 974 transitions. [2023-08-30 13:06:28,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 974 transitions. [2023-08-30 13:06:28,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:28,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 974 transitions. [2023-08-30 13:06:28,187 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) [2023-08-30 13:06:28,190 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) [2023-08-30 13:06:28,191 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) [2023-08-30 13:06:28,191 INFO L175 Difference]: Start difference. First operand has 76 places, 46 transitions, 470 flow. Second operand 7 states and 974 transitions. [2023-08-30 13:06:28,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 64 transitions, 654 flow [2023-08-30 13:06:28,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 64 transitions, 622 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:28,195 INFO L231 Difference]: Finished difference. Result has 76 places, 46 transitions, 495 flow [2023-08-30 13:06:28,196 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} [2023-08-30 13:06:28,196 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 46 predicate places. [2023-08-30 13:06:28,196 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 46 transitions, 495 flow [2023-08-30 13:06:28,197 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) [2023-08-30 13:06:28,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:28,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:28,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 13:06:28,197 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:28,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:28,198 INFO L85 PathProgramCache]: Analyzing trace with hash 348977057, now seen corresponding path program 2 times [2023-08-30 13:06:28,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:28,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294893456] [2023-08-30 13:06:28,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:28,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:28,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:28,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294893456] [2023-08-30 13:06:28,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294893456] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:28,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:28,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:28,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137743980] [2023-08-30 13:06:28,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:28,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:28,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:28,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:28,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:28,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-08-30 13:06:28,904 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) [2023-08-30 13:06:28,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:28,905 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-08-30 13:06:28,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:29,246 INFO L130 PetriNetUnfolder]: 76/210 cut-off events. [2023-08-30 13:06:29,246 INFO L131 PetriNetUnfolder]: For 954/954 co-relation queries the response was YES. [2023-08-30 13:06:29,249 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. [2023-08-30 13:06:29,250 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 36 selfloop transitions, 22 changer transitions 18/76 dead transitions. [2023-08-30 13:06:29,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 76 transitions, 832 flow [2023-08-30 13:06:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:29,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1698 transitions. [2023-08-30 13:06:29,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4397824397824398 [2023-08-30 13:06:29,256 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1698 transitions. [2023-08-30 13:06:29,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1698 transitions. [2023-08-30 13:06:29,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:29,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1698 transitions. [2023-08-30 13:06:29,263 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) [2023-08-30 13:06:29,269 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) [2023-08-30 13:06:29,270 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) [2023-08-30 13:06:29,270 INFO L175 Difference]: Start difference. First operand has 76 places, 46 transitions, 495 flow. Second operand 13 states and 1698 transitions. [2023-08-30 13:06:29,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 76 transitions, 832 flow [2023-08-30 13:06:29,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 76 transitions, 800 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:29,276 INFO L231 Difference]: Finished difference. Result has 84 places, 46 transitions, 519 flow [2023-08-30 13:06:29,277 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} [2023-08-30 13:06:29,278 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 54 predicate places. [2023-08-30 13:06:29,278 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 46 transitions, 519 flow [2023-08-30 13:06:29,279 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) [2023-08-30 13:06:29,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:29,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:29,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 13:06:29,279 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:29,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:29,280 INFO L85 PathProgramCache]: Analyzing trace with hash 348951946, now seen corresponding path program 3 times [2023-08-30 13:06:29,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:29,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229551007] [2023-08-30 13:06:29,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:29,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:29,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:29,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:29,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229551007] [2023-08-30 13:06:29,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229551007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:29,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:29,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:29,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26172475] [2023-08-30 13:06:29,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:29,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:29,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:29,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:29,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-08-30 13:06:29,891 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) [2023-08-30 13:06:29,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:29,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-08-30 13:06:29,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:30,065 INFO L130 PetriNetUnfolder]: 47/136 cut-off events. [2023-08-30 13:06:30,066 INFO L131 PetriNetUnfolder]: For 758/758 co-relation queries the response was YES. [2023-08-30 13:06:30,066 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. [2023-08-30 13:06:30,067 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 34 selfloop transitions, 17 changer transitions 0/51 dead transitions. [2023-08-30 13:06:30,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 51 transitions, 625 flow [2023-08-30 13:06:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:30,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 898 transitions. [2023-08-30 13:06:30,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43193843193843195 [2023-08-30 13:06:30,070 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 898 transitions. [2023-08-30 13:06:30,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 898 transitions. [2023-08-30 13:06:30,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:30,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 898 transitions. [2023-08-30 13:06:30,072 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) [2023-08-30 13:06:30,074 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) [2023-08-30 13:06:30,074 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) [2023-08-30 13:06:30,074 INFO L175 Difference]: Start difference. First operand has 84 places, 46 transitions, 519 flow. Second operand 7 states and 898 transitions. [2023-08-30 13:06:30,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 51 transitions, 625 flow [2023-08-30 13:06:30,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 51 transitions, 525 flow, removed 3 selfloop flow, removed 11 redundant places. [2023-08-30 13:06:30,078 INFO L231 Difference]: Finished difference. Result has 73 places, 45 transitions, 443 flow [2023-08-30 13:06:30,078 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} [2023-08-30 13:06:30,078 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 43 predicate places. [2023-08-30 13:06:30,079 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 45 transitions, 443 flow [2023-08-30 13:06:30,079 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) [2023-08-30 13:06:30,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:30,079 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:30,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 13:06:30,079 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:30,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:30,080 INFO L85 PathProgramCache]: Analyzing trace with hash 348951947, now seen corresponding path program 3 times [2023-08-30 13:06:30,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:30,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401129220] [2023-08-30 13:06:30,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:30,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:30,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:30,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:30,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401129220] [2023-08-30 13:06:30,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401129220] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:30,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:30,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:30,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142072387] [2023-08-30 13:06:30,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:30,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:30,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:30,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:30,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:30,721 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 297 [2023-08-30 13:06:30,722 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) [2023-08-30 13:06:30,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:30,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 297 [2023-08-30 13:06:30,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:30,922 INFO L130 PetriNetUnfolder]: 46/133 cut-off events. [2023-08-30 13:06:30,922 INFO L131 PetriNetUnfolder]: For 572/572 co-relation queries the response was YES. [2023-08-30 13:06:30,923 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. [2023-08-30 13:06:30,924 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 31 selfloop transitions, 18 changer transitions 6/55 dead transitions. [2023-08-30 13:06:30,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 55 transitions, 573 flow [2023-08-30 13:06:30,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:30,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:30,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1172 transitions. [2023-08-30 13:06:30,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4384586606808829 [2023-08-30 13:06:30,927 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1172 transitions. [2023-08-30 13:06:30,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1172 transitions. [2023-08-30 13:06:30,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:30,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1172 transitions. [2023-08-30 13:06:30,929 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) [2023-08-30 13:06:30,932 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) [2023-08-30 13:06:30,932 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) [2023-08-30 13:06:30,932 INFO L175 Difference]: Start difference. First operand has 73 places, 45 transitions, 443 flow. Second operand 9 states and 1172 transitions. [2023-08-30 13:06:30,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 55 transitions, 573 flow [2023-08-30 13:06:30,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 55 transitions, 526 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:30,936 INFO L231 Difference]: Finished difference. Result has 74 places, 41 transitions, 405 flow [2023-08-30 13:06:30,936 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} [2023-08-30 13:06:30,936 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 44 predicate places. [2023-08-30 13:06:30,936 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 41 transitions, 405 flow [2023-08-30 13:06:30,937 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) [2023-08-30 13:06:30,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:30,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:30,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 13:06:30,938 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:30,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:30,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1512127054, now seen corresponding path program 1 times [2023-08-30 13:06:30,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:30,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458893767] [2023-08-30 13:06:30,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:30,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:31,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:31,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:31,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458893767] [2023-08-30 13:06:31,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458893767] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:31,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:31,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:31,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972459505] [2023-08-30 13:06:31,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:31,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:31,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:31,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:31,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:32,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:32,525 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) [2023-08-30 13:06:32,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:32,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:32,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:33,429 INFO L130 PetriNetUnfolder]: 49/173 cut-off events. [2023-08-30 13:06:33,431 INFO L131 PetriNetUnfolder]: For 836/836 co-relation queries the response was YES. [2023-08-30 13:06:33,432 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. [2023-08-30 13:06:33,433 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 39 selfloop transitions, 55 changer transitions 0/94 dead transitions. [2023-08-30 13:06:33,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 94 transitions, 1056 flow [2023-08-30 13:06:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-30 13:06:33,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-30 13:06:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2772 transitions. [2023-08-30 13:06:33,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4057971014492754 [2023-08-30 13:06:33,438 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2772 transitions. [2023-08-30 13:06:33,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2772 transitions. [2023-08-30 13:06:33,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:33,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2772 transitions. [2023-08-30 13:06:33,443 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) [2023-08-30 13:06:33,452 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) [2023-08-30 13:06:33,453 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) [2023-08-30 13:06:33,454 INFO L175 Difference]: Start difference. First operand has 74 places, 41 transitions, 405 flow. Second operand 23 states and 2772 transitions. [2023-08-30 13:06:33,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 94 transitions, 1056 flow [2023-08-30 13:06:33,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 94 transitions, 919 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-30 13:06:33,461 INFO L231 Difference]: Finished difference. Result has 80 places, 75 transitions, 747 flow [2023-08-30 13:06:33,461 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} [2023-08-30 13:06:33,461 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 50 predicate places. [2023-08-30 13:06:33,462 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 75 transitions, 747 flow [2023-08-30 13:06:33,462 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) [2023-08-30 13:06:33,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:33,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:33,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 13:06:33,463 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:33,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:33,463 INFO L85 PathProgramCache]: Analyzing trace with hash 395372074, now seen corresponding path program 2 times [2023-08-30 13:06:33,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:33,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194280957] [2023-08-30 13:06:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:33,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:34,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:34,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:34,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194280957] [2023-08-30 13:06:34,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194280957] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:34,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:34,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:34,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098589239] [2023-08-30 13:06:34,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:34,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:34,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:34,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:34,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:34,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:34,607 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) [2023-08-30 13:06:34,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:34,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:34,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:35,126 INFO L130 PetriNetUnfolder]: 49/179 cut-off events. [2023-08-30 13:06:35,127 INFO L131 PetriNetUnfolder]: For 806/806 co-relation queries the response was YES. [2023-08-30 13:06:35,127 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. [2023-08-30 13:06:35,128 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 30 selfloop transitions, 59 changer transitions 0/89 dead transitions. [2023-08-30 13:06:35,128 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 89 transitions, 988 flow [2023-08-30 13:06:35,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:06:35,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:06:35,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1819 transitions. [2023-08-30 13:06:35,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40830527497194163 [2023-08-30 13:06:35,132 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1819 transitions. [2023-08-30 13:06:35,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1819 transitions. [2023-08-30 13:06:35,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:35,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1819 transitions. [2023-08-30 13:06:35,136 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) [2023-08-30 13:06:35,140 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) [2023-08-30 13:06:35,142 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) [2023-08-30 13:06:35,142 INFO L175 Difference]: Start difference. First operand has 80 places, 75 transitions, 747 flow. Second operand 15 states and 1819 transitions. [2023-08-30 13:06:35,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 89 transitions, 988 flow [2023-08-30 13:06:35,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 89 transitions, 940 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:35,147 INFO L231 Difference]: Finished difference. Result has 91 places, 78 transitions, 866 flow [2023-08-30 13:06:35,147 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} [2023-08-30 13:06:35,148 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 61 predicate places. [2023-08-30 13:06:35,148 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 78 transitions, 866 flow [2023-08-30 13:06:35,149 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) [2023-08-30 13:06:35,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:35,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:35,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 13:06:35,149 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:35,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:35,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1044204571, now seen corresponding path program 1 times [2023-08-30 13:06:35,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:35,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991920041] [2023-08-30 13:06:35,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:35,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:35,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:35,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991920041] [2023-08-30 13:06:35,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991920041] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:35,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:35,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:35,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631096696] [2023-08-30 13:06:35,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:35,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:35,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:35,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:35,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:36,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 297 [2023-08-30 13:06:36,317 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) [2023-08-30 13:06:36,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:36,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 297 [2023-08-30 13:06:36,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:36,860 INFO L130 PetriNetUnfolder]: 48/200 cut-off events. [2023-08-30 13:06:36,861 INFO L131 PetriNetUnfolder]: For 1160/1160 co-relation queries the response was YES. [2023-08-30 13:06:36,861 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. [2023-08-30 13:06:36,862 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 32 selfloop transitions, 56 changer transitions 4/92 dead transitions. [2023-08-30 13:06:36,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 92 transitions, 1156 flow [2023-08-30 13:06:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:06:36,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:06:36,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2071 transitions. [2023-08-30 13:06:36,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41018023370964546 [2023-08-30 13:06:36,866 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2071 transitions. [2023-08-30 13:06:36,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2071 transitions. [2023-08-30 13:06:36,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:36,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2071 transitions. [2023-08-30 13:06:36,870 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) [2023-08-30 13:06:36,876 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) [2023-08-30 13:06:36,877 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) [2023-08-30 13:06:36,877 INFO L175 Difference]: Start difference. First operand has 91 places, 78 transitions, 866 flow. Second operand 17 states and 2071 transitions. [2023-08-30 13:06:36,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 92 transitions, 1156 flow [2023-08-30 13:06:36,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 92 transitions, 1056 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-08-30 13:06:36,884 INFO L231 Difference]: Finished difference. Result has 100 places, 82 transitions, 967 flow [2023-08-30 13:06:36,884 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} [2023-08-30 13:06:36,884 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 70 predicate places. [2023-08-30 13:06:36,885 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 82 transitions, 967 flow [2023-08-30 13:06:36,885 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) [2023-08-30 13:06:36,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:36,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:36,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 13:06:36,886 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:36,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:36,886 INFO L85 PathProgramCache]: Analyzing trace with hash -647974710, now seen corresponding path program 3 times [2023-08-30 13:06:36,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:36,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296751956] [2023-08-30 13:06:36,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:36,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:37,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:37,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:37,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296751956] [2023-08-30 13:06:37,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296751956] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:37,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:37,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:37,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588578308] [2023-08-30 13:06:37,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:37,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:37,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:37,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:37,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:38,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:38,055 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) [2023-08-30 13:06:38,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:38,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:38,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:38,873 INFO L130 PetriNetUnfolder]: 45/199 cut-off events. [2023-08-30 13:06:38,873 INFO L131 PetriNetUnfolder]: For 1506/1506 co-relation queries the response was YES. [2023-08-30 13:06:38,873 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. [2023-08-30 13:06:38,874 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 36 selfloop transitions, 57 changer transitions 7/100 dead transitions. [2023-08-30 13:06:38,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 100 transitions, 1286 flow [2023-08-30 13:06:38,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-08-30 13:06:38,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-08-30 13:06:38,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 2775 transitions. [2023-08-30 13:06:38,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4062362758014932 [2023-08-30 13:06:38,878 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 2775 transitions. [2023-08-30 13:06:38,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 2775 transitions. [2023-08-30 13:06:38,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:38,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 2775 transitions. [2023-08-30 13:06:38,883 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) [2023-08-30 13:06:38,888 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) [2023-08-30 13:06:38,889 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) [2023-08-30 13:06:38,889 INFO L175 Difference]: Start difference. First operand has 100 places, 82 transitions, 967 flow. Second operand 23 states and 2775 transitions. [2023-08-30 13:06:38,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 100 transitions, 1286 flow [2023-08-30 13:06:38,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 100 transitions, 1175 flow, removed 11 selfloop flow, removed 14 redundant places. [2023-08-30 13:06:38,896 INFO L231 Difference]: Finished difference. Result has 110 places, 81 transitions, 1002 flow [2023-08-30 13:06:38,896 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} [2023-08-30 13:06:38,897 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 80 predicate places. [2023-08-30 13:06:38,897 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 81 transitions, 1002 flow [2023-08-30 13:06:38,897 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) [2023-08-30 13:06:38,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:38,898 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:38,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 13:06:38,898 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:38,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:38,898 INFO L85 PathProgramCache]: Analyzing trace with hash 395372073, now seen corresponding path program 2 times [2023-08-30 13:06:38,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:38,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11183758] [2023-08-30 13:06:38,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:38,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:38,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:39,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:39,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:39,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11183758] [2023-08-30 13:06:39,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11183758] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:39,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:39,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:39,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368036101] [2023-08-30 13:06:39,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:39,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:39,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:39,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:39,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:39,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:39,982 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) [2023-08-30 13:06:39,982 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:39,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:39,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:40,443 INFO L130 PetriNetUnfolder]: 41/185 cut-off events. [2023-08-30 13:06:40,444 INFO L131 PetriNetUnfolder]: For 1368/1368 co-relation queries the response was YES. [2023-08-30 13:06:40,444 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. [2023-08-30 13:06:40,445 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 29 selfloop transitions, 52 changer transitions 8/89 dead transitions. [2023-08-30 13:06:40,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 89 transitions, 1195 flow [2023-08-30 13:06:40,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:06:40,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:06:40,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1816 transitions. [2023-08-30 13:06:40,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.407631874298541 [2023-08-30 13:06:40,449 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1816 transitions. [2023-08-30 13:06:40,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1816 transitions. [2023-08-30 13:06:40,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:40,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1816 transitions. [2023-08-30 13:06:40,452 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) [2023-08-30 13:06:40,455 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) [2023-08-30 13:06:40,456 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) [2023-08-30 13:06:40,456 INFO L175 Difference]: Start difference. First operand has 110 places, 81 transitions, 1002 flow. Second operand 15 states and 1816 transitions. [2023-08-30 13:06:40,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 89 transitions, 1195 flow [2023-08-30 13:06:40,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 89 transitions, 1085 flow, removed 3 selfloop flow, removed 19 redundant places. [2023-08-30 13:06:40,463 INFO L231 Difference]: Finished difference. Result has 104 places, 75 transitions, 913 flow [2023-08-30 13:06:40,463 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} [2023-08-30 13:06:40,463 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 74 predicate places. [2023-08-30 13:06:40,464 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 75 transitions, 913 flow [2023-08-30 13:06:40,464 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) [2023-08-30 13:06:40,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:40,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:40,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 13:06:40,465 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:40,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:40,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1539346474, now seen corresponding path program 4 times [2023-08-30 13:06:40,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:40,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560011345] [2023-08-30 13:06:40,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:40,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:41,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:41,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:41,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560011345] [2023-08-30 13:06:41,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560011345] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:41,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:41,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:41,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767898069] [2023-08-30 13:06:41,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:41,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:41,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:41,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:41,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:41,515 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:41,516 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) [2023-08-30 13:06:41,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:41,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:41,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:42,008 INFO L130 PetriNetUnfolder]: 39/203 cut-off events. [2023-08-30 13:06:42,009 INFO L131 PetriNetUnfolder]: For 1551/1551 co-relation queries the response was YES. [2023-08-30 13:06:42,009 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. [2023-08-30 13:06:42,010 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 33 selfloop transitions, 61 changer transitions 8/102 dead transitions. [2023-08-30 13:06:42,010 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 102 transitions, 1388 flow [2023-08-30 13:06:42,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:06:42,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:06:42,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2060 transitions. [2023-08-30 13:06:42,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4080015844721727 [2023-08-30 13:06:42,014 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2060 transitions. [2023-08-30 13:06:42,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2060 transitions. [2023-08-30 13:06:42,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:42,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2060 transitions. [2023-08-30 13:06:42,018 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) [2023-08-30 13:06:42,022 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) [2023-08-30 13:06:42,023 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) [2023-08-30 13:06:42,023 INFO L175 Difference]: Start difference. First operand has 104 places, 75 transitions, 913 flow. Second operand 17 states and 2060 transitions. [2023-08-30 13:06:42,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 102 transitions, 1388 flow [2023-08-30 13:06:42,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 102 transitions, 1213 flow, removed 7 selfloop flow, removed 16 redundant places. [2023-08-30 13:06:42,030 INFO L231 Difference]: Finished difference. Result has 100 places, 80 transitions, 985 flow [2023-08-30 13:06:42,030 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} [2023-08-30 13:06:42,031 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 70 predicate places. [2023-08-30 13:06:42,031 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 80 transitions, 985 flow [2023-08-30 13:06:42,031 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) [2023-08-30 13:06:42,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:42,032 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:42,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 13:06:42,032 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:42,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:42,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1812408751, now seen corresponding path program 3 times [2023-08-30 13:06:42,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:42,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776177573] [2023-08-30 13:06:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:42,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:42,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:42,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:42,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776177573] [2023-08-30 13:06:42,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776177573] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:42,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:42,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:42,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793190856] [2023-08-30 13:06:42,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:42,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:42,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:42,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:42,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:42,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-08-30 13:06:42,699 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) [2023-08-30 13:06:42,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:42,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-08-30 13:06:42,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:42,901 INFO L130 PetriNetUnfolder]: 36/188 cut-off events. [2023-08-30 13:06:42,902 INFO L131 PetriNetUnfolder]: For 1264/1264 co-relation queries the response was YES. [2023-08-30 13:06:42,902 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. [2023-08-30 13:06:42,903 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 56 selfloop transitions, 42 changer transitions 0/98 dead transitions. [2023-08-30 13:06:42,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 98 transitions, 1303 flow [2023-08-30 13:06:42,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:42,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1028 transitions. [2023-08-30 13:06:42,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43265993265993263 [2023-08-30 13:06:42,910 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1028 transitions. [2023-08-30 13:06:42,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1028 transitions. [2023-08-30 13:06:42,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:42,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1028 transitions. [2023-08-30 13:06:42,915 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) [2023-08-30 13:06:42,918 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) [2023-08-30 13:06:42,918 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) [2023-08-30 13:06:42,918 INFO L175 Difference]: Start difference. First operand has 100 places, 80 transitions, 985 flow. Second operand 8 states and 1028 transitions. [2023-08-30 13:06:42,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 98 transitions, 1303 flow [2023-08-30 13:06:42,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 98 transitions, 1252 flow, removed 5 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:42,926 INFO L231 Difference]: Finished difference. Result has 100 places, 83 transitions, 1128 flow [2023-08-30 13:06:42,926 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} [2023-08-30 13:06:42,926 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 70 predicate places. [2023-08-30 13:06:42,927 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 83 transitions, 1128 flow [2023-08-30 13:06:42,927 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) [2023-08-30 13:06:42,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:42,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:42,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 13:06:42,928 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:42,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:42,928 INFO L85 PathProgramCache]: Analyzing trace with hash 155978669, now seen corresponding path program 4 times [2023-08-30 13:06:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:42,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581863789] [2023-08-30 13:06:42,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:42,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:43,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:43,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:43,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581863789] [2023-08-30 13:06:43,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581863789] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:43,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:43,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:43,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228338067] [2023-08-30 13:06:43,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:43,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:43,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:43,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:43,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:43,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-08-30 13:06:43,570 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) [2023-08-30 13:06:43,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:43,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-08-30 13:06:43,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:43,778 INFO L130 PetriNetUnfolder]: 33/179 cut-off events. [2023-08-30 13:06:43,778 INFO L131 PetriNetUnfolder]: For 1618/1618 co-relation queries the response was YES. [2023-08-30 13:06:43,779 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. [2023-08-30 13:06:43,780 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 56 selfloop transitions, 42 changer transitions 0/98 dead transitions. [2023-08-30 13:06:43,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 98 transitions, 1372 flow [2023-08-30 13:06:43,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1158 transitions. [2023-08-30 13:06:43,782 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4332210998877666 [2023-08-30 13:06:43,783 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1158 transitions. [2023-08-30 13:06:43,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1158 transitions. [2023-08-30 13:06:43,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:43,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1158 transitions. [2023-08-30 13:06:43,785 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) [2023-08-30 13:06:43,787 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) [2023-08-30 13:06:43,788 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) [2023-08-30 13:06:43,788 INFO L175 Difference]: Start difference. First operand has 100 places, 83 transitions, 1128 flow. Second operand 9 states and 1158 transitions. [2023-08-30 13:06:43,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 98 transitions, 1372 flow [2023-08-30 13:06:43,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 98 transitions, 1364 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:06:43,795 INFO L231 Difference]: Finished difference. Result has 109 places, 85 transitions, 1267 flow [2023-08-30 13:06:43,796 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} [2023-08-30 13:06:43,796 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 79 predicate places. [2023-08-30 13:06:43,796 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 85 transitions, 1267 flow [2023-08-30 13:06:43,797 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) [2023-08-30 13:06:43,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:43,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:43,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 13:06:43,797 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:43,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:43,798 INFO L85 PathProgramCache]: Analyzing trace with hash 120229470, now seen corresponding path program 5 times [2023-08-30 13:06:43,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:43,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992076322] [2023-08-30 13:06:43,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:43,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:44,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:44,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:44,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992076322] [2023-08-30 13:06:44,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992076322] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:44,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:44,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:44,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157786469] [2023-08-30 13:06:44,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:44,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:44,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:44,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:44,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:45,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:45,048 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) [2023-08-30 13:06:45,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:45,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:45,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:45,689 INFO L130 PetriNetUnfolder]: 31/173 cut-off events. [2023-08-30 13:06:45,689 INFO L131 PetriNetUnfolder]: For 2004/2004 co-relation queries the response was YES. [2023-08-30 13:06:45,690 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. [2023-08-30 13:06:45,691 INFO L137 encePairwiseOnDemand]: 287/297 looper letters, 29 selfloop transitions, 53 changer transitions 14/96 dead transitions. [2023-08-30 13:06:45,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 96 transitions, 1517 flow [2023-08-30 13:06:45,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:06:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:06:45,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2054 transitions. [2023-08-30 13:06:45,694 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4068132303426421 [2023-08-30 13:06:45,694 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2054 transitions. [2023-08-30 13:06:45,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2054 transitions. [2023-08-30 13:06:45,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:45,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2054 transitions. [2023-08-30 13:06:45,698 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) [2023-08-30 13:06:45,702 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) [2023-08-30 13:06:45,702 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) [2023-08-30 13:06:45,703 INFO L175 Difference]: Start difference. First operand has 109 places, 85 transitions, 1267 flow. Second operand 17 states and 2054 transitions. [2023-08-30 13:06:45,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 96 transitions, 1517 flow [2023-08-30 13:06:45,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 96 transitions, 1482 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:45,711 INFO L231 Difference]: Finished difference. Result has 124 places, 77 transitions, 1171 flow [2023-08-30 13:06:45,712 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} [2023-08-30 13:06:45,712 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 94 predicate places. [2023-08-30 13:06:45,712 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 77 transitions, 1171 flow [2023-08-30 13:06:45,712 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) [2023-08-30 13:06:45,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:45,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:45,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 13:06:45,713 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:45,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:45,714 INFO L85 PathProgramCache]: Analyzing trace with hash -412053520, now seen corresponding path program 6 times [2023-08-30 13:06:45,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:45,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671776078] [2023-08-30 13:06:45,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:45,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:46,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:46,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671776078] [2023-08-30 13:06:46,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671776078] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:46,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:46,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:46,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619051522] [2023-08-30 13:06:46,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:46,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:46,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:46,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:46,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:46,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:46,855 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) [2023-08-30 13:06:46,855 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:46,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:46,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:47,483 INFO L130 PetriNetUnfolder]: 30/184 cut-off events. [2023-08-30 13:06:47,484 INFO L131 PetriNetUnfolder]: For 2027/2027 co-relation queries the response was YES. [2023-08-30 13:06:47,484 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. [2023-08-30 13:06:47,485 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 49 selfloop transitions, 43 changer transitions 8/100 dead transitions. [2023-08-30 13:06:47,486 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 100 transitions, 1660 flow [2023-08-30 13:06:47,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:06:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:06:47,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2053 transitions. [2023-08-30 13:06:47,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4066151713210537 [2023-08-30 13:06:47,488 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2053 transitions. [2023-08-30 13:06:47,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2053 transitions. [2023-08-30 13:06:47,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:47,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2053 transitions. [2023-08-30 13:06:47,492 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) [2023-08-30 13:06:47,496 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) [2023-08-30 13:06:47,496 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) [2023-08-30 13:06:47,496 INFO L175 Difference]: Start difference. First operand has 124 places, 77 transitions, 1171 flow. Second operand 17 states and 2053 transitions. [2023-08-30 13:06:47,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 100 transitions, 1660 flow [2023-08-30 13:06:47,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 100 transitions, 1550 flow, removed 4 selfloop flow, removed 13 redundant places. [2023-08-30 13:06:47,507 INFO L231 Difference]: Finished difference. Result has 129 places, 81 transitions, 1238 flow [2023-08-30 13:06:47,507 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} [2023-08-30 13:06:47,512 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 99 predicate places. [2023-08-30 13:06:47,512 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 81 transitions, 1238 flow [2023-08-30 13:06:47,513 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) [2023-08-30 13:06:47,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:47,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:47,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 13:06:47,513 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:47,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:47,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1382345216, now seen corresponding path program 7 times [2023-08-30 13:06:47,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:47,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092664147] [2023-08-30 13:06:47,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:47,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:48,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:48,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092664147] [2023-08-30 13:06:48,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092664147] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:48,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:48,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:48,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526010273] [2023-08-30 13:06:48,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:48,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:48,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:48,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:48,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:48,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 297 [2023-08-30 13:06:48,578 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) [2023-08-30 13:06:48,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:48,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 297 [2023-08-30 13:06:48,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:48,971 INFO L130 PetriNetUnfolder]: 28/172 cut-off events. [2023-08-30 13:06:48,971 INFO L131 PetriNetUnfolder]: For 1976/1976 co-relation queries the response was YES. [2023-08-30 13:06:48,972 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. [2023-08-30 13:06:48,973 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 42 selfloop transitions, 36 changer transitions 9/87 dead transitions. [2023-08-30 13:06:48,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 87 transitions, 1448 flow [2023-08-30 13:06:48,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:48,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1429 transitions. [2023-08-30 13:06:48,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4009539842873176 [2023-08-30 13:06:48,976 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1429 transitions. [2023-08-30 13:06:48,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1429 transitions. [2023-08-30 13:06:48,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:48,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1429 transitions. [2023-08-30 13:06:48,978 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) [2023-08-30 13:06:48,981 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) [2023-08-30 13:06:48,981 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) [2023-08-30 13:06:48,981 INFO L175 Difference]: Start difference. First operand has 129 places, 81 transitions, 1238 flow. Second operand 12 states and 1429 transitions. [2023-08-30 13:06:48,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 87 transitions, 1448 flow [2023-08-30 13:06:48,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 87 transitions, 1424 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:48,991 INFO L231 Difference]: Finished difference. Result has 134 places, 75 transitions, 1182 flow [2023-08-30 13:06:48,991 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} [2023-08-30 13:06:48,992 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 104 predicate places. [2023-08-30 13:06:48,992 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 75 transitions, 1182 flow [2023-08-30 13:06:48,993 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) [2023-08-30 13:06:48,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:48,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:48,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 13:06:48,993 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:48,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:48,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1196062312, now seen corresponding path program 8 times [2023-08-30 13:06:48,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:48,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113229632] [2023-08-30 13:06:48,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:48,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:49,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:49,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113229632] [2023-08-30 13:06:49,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113229632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:49,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:49,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:49,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298739057] [2023-08-30 13:06:49,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:49,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:49,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:49,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:49,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:50,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:50,087 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) [2023-08-30 13:06:50,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:50,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:50,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:50,395 INFO L130 PetriNetUnfolder]: 26/158 cut-off events. [2023-08-30 13:06:50,395 INFO L131 PetriNetUnfolder]: For 1974/1974 co-relation queries the response was YES. [2023-08-30 13:06:50,395 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. [2023-08-30 13:06:50,396 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 45 selfloop transitions, 31 changer transitions 7/83 dead transitions. [2023-08-30 13:06:50,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 83 transitions, 1379 flow [2023-08-30 13:06:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:50,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:50,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1335 transitions. [2023-08-30 13:06:50,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4086317722681359 [2023-08-30 13:06:50,403 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1335 transitions. [2023-08-30 13:06:50,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1335 transitions. [2023-08-30 13:06:50,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:50,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1335 transitions. [2023-08-30 13:06:50,412 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) [2023-08-30 13:06:50,415 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) [2023-08-30 13:06:50,415 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) [2023-08-30 13:06:50,415 INFO L175 Difference]: Start difference. First operand has 134 places, 75 transitions, 1182 flow. Second operand 11 states and 1335 transitions. [2023-08-30 13:06:50,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 83 transitions, 1379 flow [2023-08-30 13:06:50,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 83 transitions, 1294 flow, removed 5 selfloop flow, removed 10 redundant places. [2023-08-30 13:06:50,425 INFO L231 Difference]: Finished difference. Result has 129 places, 71 transitions, 1081 flow [2023-08-30 13:06:50,425 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} [2023-08-30 13:06:50,426 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 99 predicate places. [2023-08-30 13:06:50,426 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 71 transitions, 1081 flow [2023-08-30 13:06:50,426 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) [2023-08-30 13:06:50,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:50,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:50,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 13:06:50,427 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:50,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:50,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1192607410, now seen corresponding path program 9 times [2023-08-30 13:06:50,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:50,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658496198] [2023-08-30 13:06:50,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:50,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:50,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:50,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658496198] [2023-08-30 13:06:50,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658496198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:50,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:50,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:50,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264780937] [2023-08-30 13:06:50,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:50,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:50,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:50,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:51,451 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:51,452 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) [2023-08-30 13:06:51,452 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:51,452 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:51,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:51,802 INFO L130 PetriNetUnfolder]: 23/143 cut-off events. [2023-08-30 13:06:51,802 INFO L131 PetriNetUnfolder]: For 1747/1747 co-relation queries the response was YES. [2023-08-30 13:06:51,803 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. [2023-08-30 13:06:51,804 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 36 selfloop transitions, 25 changer transitions 16/77 dead transitions. [2023-08-30 13:06:51,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 77 transitions, 1225 flow [2023-08-30 13:06:51,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:51,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:51,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1455 transitions. [2023-08-30 13:06:51,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40824915824915825 [2023-08-30 13:06:51,806 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1455 transitions. [2023-08-30 13:06:51,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1455 transitions. [2023-08-30 13:06:51,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:51,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1455 transitions. [2023-08-30 13:06:51,809 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) [2023-08-30 13:06:51,811 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) [2023-08-30 13:06:51,811 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) [2023-08-30 13:06:51,811 INFO L175 Difference]: Start difference. First operand has 129 places, 71 transitions, 1081 flow. Second operand 12 states and 1455 transitions. [2023-08-30 13:06:51,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 77 transitions, 1225 flow [2023-08-30 13:06:51,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 77 transitions, 1101 flow, removed 3 selfloop flow, removed 11 redundant places. [2023-08-30 13:06:51,819 INFO L231 Difference]: Finished difference. Result has 128 places, 58 transitions, 777 flow [2023-08-30 13:06:51,819 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} [2023-08-30 13:06:51,819 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 98 predicate places. [2023-08-30 13:06:51,820 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 58 transitions, 777 flow [2023-08-30 13:06:51,820 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) [2023-08-30 13:06:51,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:51,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:51,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 13:06:51,821 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:51,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:51,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2083088854, now seen corresponding path program 10 times [2023-08-30 13:06:51,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:51,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930422816] [2023-08-30 13:06:51,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:51,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:52,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:52,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930422816] [2023-08-30 13:06:52,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930422816] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:52,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:52,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:52,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103823295] [2023-08-30 13:06:52,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:52,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:52,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:52,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:52,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:52,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:52,646 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) [2023-08-30 13:06:52,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:52,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:52,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:52,886 INFO L130 PetriNetUnfolder]: 16/111 cut-off events. [2023-08-30 13:06:52,886 INFO L131 PetriNetUnfolder]: For 1148/1148 co-relation queries the response was YES. [2023-08-30 13:06:52,887 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. [2023-08-30 13:06:52,887 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 34 selfloop transitions, 20 changer transitions 7/61 dead transitions. [2023-08-30 13:06:52,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 61 transitions, 896 flow [2023-08-30 13:06:52,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:52,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:52,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1336 transitions. [2023-08-30 13:06:52,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.408937863483318 [2023-08-30 13:06:52,893 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1336 transitions. [2023-08-30 13:06:52,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1336 transitions. [2023-08-30 13:06:52,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:52,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1336 transitions. [2023-08-30 13:06:52,896 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) [2023-08-30 13:06:52,898 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) [2023-08-30 13:06:52,898 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) [2023-08-30 13:06:52,898 INFO L175 Difference]: Start difference. First operand has 128 places, 58 transitions, 777 flow. Second operand 11 states and 1336 transitions. [2023-08-30 13:06:52,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 61 transitions, 896 flow [2023-08-30 13:06:52,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 61 transitions, 744 flow, removed 6 selfloop flow, removed 22 redundant places. [2023-08-30 13:06:52,903 INFO L231 Difference]: Finished difference. Result has 112 places, 52 transitions, 598 flow [2023-08-30 13:06:52,903 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} [2023-08-30 13:06:52,904 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 82 predicate places. [2023-08-30 13:06:52,904 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 52 transitions, 598 flow [2023-08-30 13:06:52,904 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) [2023-08-30 13:06:52,904 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:52,904 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:52,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 13:06:52,905 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:52,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:52,905 INFO L85 PathProgramCache]: Analyzing trace with hash 890644776, now seen corresponding path program 11 times [2023-08-30 13:06:52,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:52,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592613905] [2023-08-30 13:06:52,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:52,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:53,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:53,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592613905] [2023-08-30 13:06:53,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592613905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:53,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:53,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:53,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741112691] [2023-08-30 13:06:53,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:53,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:53,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:53,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:53,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:53,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 297 [2023-08-30 13:06:53,842 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) [2023-08-30 13:06:53,842 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:53,842 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 297 [2023-08-30 13:06:53,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:54,308 INFO L130 PetriNetUnfolder]: 11/89 cut-off events. [2023-08-30 13:06:54,309 INFO L131 PetriNetUnfolder]: For 760/760 co-relation queries the response was YES. [2023-08-30 13:06:54,309 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. [2023-08-30 13:06:54,309 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 22 selfloop transitions, 32 changer transitions 0/54 dead transitions. [2023-08-30 13:06:54,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 54 transitions, 690 flow [2023-08-30 13:06:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:54,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1661 transitions. [2023-08-30 13:06:54,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3994708994708995 [2023-08-30 13:06:54,316 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1661 transitions. [2023-08-30 13:06:54,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1661 transitions. [2023-08-30 13:06:54,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:54,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1661 transitions. [2023-08-30 13:06:54,318 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) [2023-08-30 13:06:54,323 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) [2023-08-30 13:06:54,324 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) [2023-08-30 13:06:54,324 INFO L175 Difference]: Start difference. First operand has 112 places, 52 transitions, 598 flow. Second operand 14 states and 1661 transitions. [2023-08-30 13:06:54,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 54 transitions, 690 flow [2023-08-30 13:06:54,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 54 transitions, 607 flow, removed 4 selfloop flow, removed 13 redundant places. [2023-08-30 13:06:54,328 INFO L231 Difference]: Finished difference. Result has 105 places, 50 transitions, 551 flow [2023-08-30 13:06:54,328 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} [2023-08-30 13:06:54,328 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 75 predicate places. [2023-08-30 13:06:54,328 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 50 transitions, 551 flow [2023-08-30 13:06:54,329 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) [2023-08-30 13:06:54,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:54,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:54,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 13:06:54,329 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:54,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:54,330 INFO L85 PathProgramCache]: Analyzing trace with hash 898198236, now seen corresponding path program 12 times [2023-08-30 13:06:54,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:54,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107490655] [2023-08-30 13:06:54,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:54,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:54,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:54,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107490655] [2023-08-30 13:06:54,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107490655] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:54,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:54,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:54,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927694102] [2023-08-30 13:06:54,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:54,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:54,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:54,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:54,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:55,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:55,290 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) [2023-08-30 13:06:55,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:55,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:55,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:55,858 INFO L130 PetriNetUnfolder]: 10/86 cut-off events. [2023-08-30 13:06:55,858 INFO L131 PetriNetUnfolder]: For 412/412 co-relation queries the response was YES. [2023-08-30 13:06:55,859 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. [2023-08-30 13:06:55,859 INFO L137 encePairwiseOnDemand]: 288/297 looper letters, 14 selfloop transitions, 34 changer transitions 7/55 dead transitions. [2023-08-30 13:06:55,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 55 transitions, 675 flow [2023-08-30 13:06:55,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-30 13:06:55,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-30 13:06:55,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2520 transitions. [2023-08-30 13:06:55,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40404040404040403 [2023-08-30 13:06:55,862 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2520 transitions. [2023-08-30 13:06:55,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2520 transitions. [2023-08-30 13:06:55,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:55,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2520 transitions. [2023-08-30 13:06:55,865 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) [2023-08-30 13:06:55,869 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) [2023-08-30 13:06:55,870 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) [2023-08-30 13:06:55,870 INFO L175 Difference]: Start difference. First operand has 105 places, 50 transitions, 551 flow. Second operand 21 states and 2520 transitions. [2023-08-30 13:06:55,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 55 transitions, 675 flow [2023-08-30 13:06:55,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 55 transitions, 601 flow, removed 2 selfloop flow, removed 13 redundant places. [2023-08-30 13:06:55,873 INFO L231 Difference]: Finished difference. Result has 113 places, 45 transitions, 496 flow [2023-08-30 13:06:55,873 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} [2023-08-30 13:06:55,874 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 83 predicate places. [2023-08-30 13:06:55,874 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 45 transitions, 496 flow [2023-08-30 13:06:55,874 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) [2023-08-30 13:06:55,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:55,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:55,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 13:06:55,875 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:55,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:55,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1223619678, now seen corresponding path program 13 times [2023-08-30 13:06:55,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:55,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923397108] [2023-08-30 13:06:55,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:55,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:56,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:56,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:56,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923397108] [2023-08-30 13:06:56,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923397108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:56,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:56,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:56,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469998061] [2023-08-30 13:06:56,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:56,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:56,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:56,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:56,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:56,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:56,772 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) [2023-08-30 13:06:56,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:56,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:56,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:57,060 INFO L130 PetriNetUnfolder]: 6/72 cut-off events. [2023-08-30 13:06:57,061 INFO L131 PetriNetUnfolder]: For 333/333 co-relation queries the response was YES. [2023-08-30 13:06:57,061 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. [2023-08-30 13:06:57,062 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 23 selfloop transitions, 20 changer transitions 6/49 dead transitions. [2023-08-30 13:06:57,062 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 49 transitions, 605 flow [2023-08-30 13:06:57,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:57,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:57,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1454 transitions. [2023-08-30 13:06:57,064 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4079685746352413 [2023-08-30 13:06:57,064 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1454 transitions. [2023-08-30 13:06:57,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1454 transitions. [2023-08-30 13:06:57,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:57,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1454 transitions. [2023-08-30 13:06:57,066 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) [2023-08-30 13:06:57,069 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) [2023-08-30 13:06:57,069 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) [2023-08-30 13:06:57,069 INFO L175 Difference]: Start difference. First operand has 113 places, 45 transitions, 496 flow. Second operand 12 states and 1454 transitions. [2023-08-30 13:06:57,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 49 transitions, 605 flow [2023-08-30 13:06:57,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 49 transitions, 528 flow, removed 2 selfloop flow, removed 21 redundant places. [2023-08-30 13:06:57,072 INFO L231 Difference]: Finished difference. Result has 102 places, 41 transitions, 426 flow [2023-08-30 13:06:57,072 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} [2023-08-30 13:06:57,073 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 72 predicate places. [2023-08-30 13:06:57,073 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 41 transitions, 426 flow [2023-08-30 13:06:57,073 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) [2023-08-30 13:06:57,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:57,074 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:57,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 13:06:57,074 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:57,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:57,074 INFO L85 PathProgramCache]: Analyzing trace with hash 890644775, now seen corresponding path program 5 times [2023-08-30 13:06:57,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:57,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026394668] [2023-08-30 13:06:57,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:57,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:57,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:57,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:57,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026394668] [2023-08-30 13:06:57,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026394668] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:57,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:57,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:57,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300912732] [2023-08-30 13:06:57,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:57,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:57,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:57,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:57,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:57,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 297 [2023-08-30 13:06:57,846 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) [2023-08-30 13:06:57,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:57,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 297 [2023-08-30 13:06:57,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:58,056 INFO L130 PetriNetUnfolder]: 5/63 cut-off events. [2023-08-30 13:06:58,056 INFO L131 PetriNetUnfolder]: For 347/347 co-relation queries the response was YES. [2023-08-30 13:06:58,057 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. [2023-08-30 13:06:58,057 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 21 selfloop transitions, 13 changer transitions 10/44 dead transitions. [2023-08-30 13:06:58,057 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 44 transitions, 501 flow [2023-08-30 13:06:58,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 978 transitions. [2023-08-30 13:06:58,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4116161616161616 [2023-08-30 13:06:58,059 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 978 transitions. [2023-08-30 13:06:58,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 978 transitions. [2023-08-30 13:06:58,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:58,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 978 transitions. [2023-08-30 13:06:58,061 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) [2023-08-30 13:06:58,062 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) [2023-08-30 13:06:58,063 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) [2023-08-30 13:06:58,063 INFO L175 Difference]: Start difference. First operand has 102 places, 41 transitions, 426 flow. Second operand 8 states and 978 transitions. [2023-08-30 13:06:58,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 44 transitions, 501 flow [2023-08-30 13:06:58,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 44 transitions, 435 flow, removed 3 selfloop flow, removed 13 redundant places. [2023-08-30 13:06:58,065 INFO L231 Difference]: Finished difference. Result has 90 places, 33 transitions, 309 flow [2023-08-30 13:06:58,065 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} [2023-08-30 13:06:58,066 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 60 predicate places. [2023-08-30 13:06:58,066 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 33 transitions, 309 flow [2023-08-30 13:06:58,066 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) [2023-08-30 13:06:58,066 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:58,066 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:58,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 13:06:58,066 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:58,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:58,066 INFO L85 PathProgramCache]: Analyzing trace with hash 538133185, now seen corresponding path program 6 times [2023-08-30 13:06:58,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:58,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414393558] [2023-08-30 13:06:58,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:58,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:58,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:58,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414393558] [2023-08-30 13:06:58,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414393558] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:58,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:58,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:58,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649727307] [2023-08-30 13:06:58,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:58,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:06:58,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:58,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:06:58,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:06:58,682 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-08-30 13:06:58,683 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) [2023-08-30 13:06:58,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:58,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-08-30 13:06:58,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:58,825 INFO L130 PetriNetUnfolder]: 4/50 cut-off events. [2023-08-30 13:06:58,825 INFO L131 PetriNetUnfolder]: For 163/163 co-relation queries the response was YES. [2023-08-30 13:06:58,826 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. [2023-08-30 13:06:58,826 INFO L137 encePairwiseOnDemand]: 290/297 looper letters, 24 selfloop transitions, 7 changer transitions 7/38 dead transitions. [2023-08-30 13:06:58,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 38 transitions, 389 flow [2023-08-30 13:06:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:58,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:58,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1022 transitions. [2023-08-30 13:06:58,827 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43013468013468015 [2023-08-30 13:06:58,827 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1022 transitions. [2023-08-30 13:06:58,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1022 transitions. [2023-08-30 13:06:58,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:58,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1022 transitions. [2023-08-30 13:06:58,828 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) [2023-08-30 13:06:58,829 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) [2023-08-30 13:06:58,829 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) [2023-08-30 13:06:58,829 INFO L175 Difference]: Start difference. First operand has 90 places, 33 transitions, 309 flow. Second operand 8 states and 1022 transitions. [2023-08-30 13:06:58,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 38 transitions, 389 flow [2023-08-30 13:06:58,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 38 transitions, 307 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-08-30 13:06:58,831 INFO L231 Difference]: Finished difference. Result has 75 places, 28 transitions, 203 flow [2023-08-30 13:06:58,831 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} [2023-08-30 13:06:58,831 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 45 predicate places. [2023-08-30 13:06:58,831 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 28 transitions, 203 flow [2023-08-30 13:06:58,831 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) [2023-08-30 13:06:58,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:58,832 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:58,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 13:06:58,832 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:58,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:58,832 INFO L85 PathProgramCache]: Analyzing trace with hash -253327982, now seen corresponding path program 14 times [2023-08-30 13:06:58,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:58,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289437557] [2023-08-30 13:06:58,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:58,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:59,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:59,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289437557] [2023-08-30 13:06:59,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289437557] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:59,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:59,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:59,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498223024] [2023-08-30 13:06:59,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:59,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:59,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:59,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:59,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:59,777 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 297 [2023-08-30 13:06:59,778 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) [2023-08-30 13:06:59,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:59,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 297 [2023-08-30 13:06:59,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:00,055 INFO L130 PetriNetUnfolder]: 3/40 cut-off events. [2023-08-30 13:07:00,055 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2023-08-30 13:07:00,055 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. [2023-08-30 13:07:00,055 INFO L137 encePairwiseOnDemand]: 289/297 looper letters, 12 selfloop transitions, 10 changer transitions 8/30 dead transitions. [2023-08-30 13:07:00,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 30 transitions, 261 flow [2023-08-30 13:07:00,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:07:00,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:07:00,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1324 transitions. [2023-08-30 13:07:00,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40526476890113255 [2023-08-30 13:07:00,057 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1324 transitions. [2023-08-30 13:07:00,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1324 transitions. [2023-08-30 13:07:00,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:00,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1324 transitions. [2023-08-30 13:07:00,058 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) [2023-08-30 13:07:00,060 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) [2023-08-30 13:07:00,060 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) [2023-08-30 13:07:00,060 INFO L175 Difference]: Start difference. First operand has 75 places, 28 transitions, 203 flow. Second operand 11 states and 1324 transitions. [2023-08-30 13:07:00,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 30 transitions, 261 flow [2023-08-30 13:07:00,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 30 transitions, 220 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-08-30 13:07:00,062 INFO L231 Difference]: Finished difference. Result has 66 places, 21 transitions, 150 flow [2023-08-30 13:07:00,062 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} [2023-08-30 13:07:00,063 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 36 predicate places. [2023-08-30 13:07:00,063 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 21 transitions, 150 flow [2023-08-30 13:07:00,063 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) [2023-08-30 13:07:00,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:00,063 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:00,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 13:07:00,063 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:00,063 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:00,064 INFO L85 PathProgramCache]: Analyzing trace with hash -318957407, now seen corresponding path program 7 times [2023-08-30 13:07:00,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:00,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081877479] [2023-08-30 13:07:00,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:00,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:00,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:00,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081877479] [2023-08-30 13:07:00,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081877479] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:00,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:00,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:07:00,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642138310] [2023-08-30 13:07:00,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:00,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:07:00,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:00,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:07:00,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:07:00,587 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 297 [2023-08-30 13:07:00,587 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) [2023-08-30 13:07:00,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:00,588 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 297 [2023-08-30 13:07:00,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:00,709 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2023-08-30 13:07:00,709 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-30 13:07:00,709 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. [2023-08-30 13:07:00,709 INFO L137 encePairwiseOnDemand]: 291/297 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2023-08-30 13:07:00,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 18 transitions, 125 flow [2023-08-30 13:07:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:07:00,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:07:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1008 transitions. [2023-08-30 13:07:00,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2023-08-30 13:07:00,710 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1008 transitions. [2023-08-30 13:07:00,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1008 transitions. [2023-08-30 13:07:00,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:00,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1008 transitions. [2023-08-30 13:07:00,712 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) [2023-08-30 13:07:00,713 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) [2023-08-30 13:07:00,713 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) [2023-08-30 13:07:00,713 INFO L175 Difference]: Start difference. First operand has 66 places, 21 transitions, 150 flow. Second operand 8 states and 1008 transitions. [2023-08-30 13:07:00,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 18 transitions, 125 flow [2023-08-30 13:07:00,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 18 transitions, 100 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-30 13:07:00,714 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-08-30 13:07:00,714 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} [2023-08-30 13:07:00,714 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2023-08-30 13:07:00,715 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-08-30 13:07:00,715 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) [2023-08-30 13:07:00,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-08-30 13:07:00,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-08-30 13:07:00,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-08-30 13:07:00,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-08-30 13:07:00,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-08-30 13:07:00,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-08-30 13:07:00,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-08-30 13:07:00,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-08-30 13:07:00,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 13:07:00,719 INFO L445 BasicCegarLoop]: Path program histogram: [14, 7, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-08-30 13:07:00,722 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:07:00,723 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:07:00,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:07:00 BasicIcfg [2023-08-30 13:07:00,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:07:00,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:07:00,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:07:00,725 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:07:00,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:08" (3/4) ... [2023-08-30 13:07:00,728 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:07:00,732 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-30 13:07:00,736 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-30 13:07:00,736 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 13:07:00,736 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:07:00,737 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:07:00,765 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:07:00,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:07:00,766 INFO L158 Benchmark]: Toolchain (without parser) took 53952.89ms. Allocated memory was 83.9MB in the beginning and 385.9MB in the end (delta: 302.0MB). Free memory was 58.6MB in the beginning and 216.7MB in the end (delta: -158.1MB). Peak memory consumption was 144.5MB. Max. memory is 16.1GB. [2023-08-30 13:07:00,766 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:07:00,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 941.06ms. Allocated memory is still 83.9MB. Free memory was 58.6MB in the beginning and 50.6MB in the end (delta: 7.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-08-30 13:07:00,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.62ms. Allocated memory is still 83.9MB. Free memory was 50.6MB in the beginning and 47.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:07:00,767 INFO L158 Benchmark]: Boogie Preprocessor took 46.10ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 44.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:07:00,767 INFO L158 Benchmark]: RCFGBuilder took 679.80ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 44.5MB in the beginning and 64.0MB in the end (delta: -19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-30 13:07:00,767 INFO L158 Benchmark]: TraceAbstraction took 52168.87ms. Allocated memory was 102.8MB in the beginning and 385.9MB in the end (delta: 283.1MB). Free memory was 63.4MB in the beginning and 220.9MB in the end (delta: -157.5MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. [2023-08-30 13:07:00,767 INFO L158 Benchmark]: Witness Printer took 39.97ms. Allocated memory is still 385.9MB. Free memory was 220.9MB in the beginning and 216.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:07:00,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 941.06ms. Allocated memory is still 83.9MB. Free memory was 58.6MB in the beginning and 50.6MB in the end (delta: 7.9MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.62ms. Allocated memory is still 83.9MB. Free memory was 50.6MB in the beginning and 47.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.10ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 44.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 679.80ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 44.5MB in the beginning and 64.0MB in the end (delta: -19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 52168.87ms. Allocated memory was 102.8MB in the beginning and 385.9MB in the end (delta: 283.1MB). Free memory was 63.4MB in the beginning and 220.9MB in the end (delta: -157.5MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. * Witness Printer took 39.97ms. Allocated memory is still 385.9MB. Free memory was 220.9MB in the beginning and 216.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2s, 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: 52.0s, OverallIterations: 39, TraceHistogramMax: 1, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 24.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8156 SdHoareTripleChecker+Valid, 15.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6183 mSDsluCounter, 3623 SdHoareTripleChecker+Invalid, 13.5s 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, 8.5s 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, 0.6s SatisfiabilityAnalysisTime, 19.4s 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! [2023-08-30 13:07:00,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE