./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_5-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_5-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:50:26,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:50:26,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:50:26,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:50:26,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:50:26,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:50:26,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:50:26,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:50:26,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:50:26,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:50:26,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:50:26,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:50:26,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:50:26,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:50:26,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:50:26,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:50:26,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:50:26,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:50:26,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:50:26,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:50:26,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:50:26,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:50:26,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:50:26,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:50:26,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:50:26,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:50:26,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:50:26,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:50:26,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:50:26,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:50:26,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:50:26,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:50:26,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:50:26,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:50:26,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:50:26,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:50:26,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:50:26,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:50:26,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:50:26,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:50:26,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:50:26,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:50:26,318 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:50:26,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:50:26,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:50:26,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:50:26,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:50:26,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:50:26,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:50:26,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:50:26,322 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:50:26,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:50:26,322 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:50:26,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:50:26,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:50:26,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:50:26,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:50:26,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:50:26,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:50:26,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:50:26,324 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:50:26,324 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:50:26,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:50:26,324 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:50:26,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:50:26,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:50:26,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:50:26,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:50:26,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:26,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:50:26,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:50:26,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:50:26,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:50:26,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:50:26,327 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:50:26,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:50:26,327 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:50:26,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:50:26,327 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:50:26,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:50:26,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:50:26,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:50:26,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:50:26,592 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:50:26,592 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:50:26,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2023-08-30 08:50:27,612 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:50:27,848 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:50:27,848 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2023-08-30 08:50:27,871 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf482980/8c706016f4c64519bfabd5b832622fe5/FLAGaaf8203cf [2023-08-30 08:50:27,882 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf482980/8c706016f4c64519bfabd5b832622fe5 [2023-08-30 08:50:27,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:50:27,884 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:50:27,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:27,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:50:27,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:50:27,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e8c876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:27, skipping insertion in model container [2023-08-30 08:50:27,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:27" (1/1) ... [2023-08-30 08:50:27,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:50:27,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:50:28,048 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 08:50:28,360 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_5-container_of.i[75002,75015] [2023-08-30 08:50:28,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:28,416 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:50:28,424 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 08:50:28,463 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_5-container_of.i[75002,75015] [2023-08-30 08:50:28,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:28,614 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:28,615 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:28,615 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:28,619 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:50:28,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28 WrapperNode [2023-08-30 08:50:28,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:28,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:28,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:50:28,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:50:28,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,696 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-08-30 08:50:28,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:28,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:50:28,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:50:28,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:50:28,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,733 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:50:28,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:50:28,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:50:28,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:50:28,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (1/1) ... [2023-08-30 08:50:28,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:28,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:50:28,760 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 08:50:28,772 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 08:50:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:50:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:50:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:50:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:50:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 08:50:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:50:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 08:50:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:50:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:50:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-30 08:50:28,786 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-30 08:50:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:50:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:50:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:50:28,787 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 08:50:29,087 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:50:29,096 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:50:29,290 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:50:29,340 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:50:29,340 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:50:29,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:29 BoogieIcfgContainer [2023-08-30 08:50:29,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:50:29,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:50:29,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:50:29,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:50:29,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:50:27" (1/3) ... [2023-08-30 08:50:29,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b51b778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:29, skipping insertion in model container [2023-08-30 08:50:29,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:28" (2/3) ... [2023-08-30 08:50:29,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b51b778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:29, skipping insertion in model container [2023-08-30 08:50:29,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:29" (3/3) ... [2023-08-30 08:50:29,348 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2023-08-30 08:50:29,353 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:50:29,359 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:50:29,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 08:50:29,359 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:50:29,425 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 08:50:29,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 08:50:29,500 INFO L130 PetriNetUnfolder]: 8/193 cut-off events. [2023-08-30 08:50:29,501 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 08:50:29,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 193 events. 8/193 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 336 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 104. Up to 4 conditions per place. [2023-08-30 08:50:29,512 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 08:50:29,523 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:29,525 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:50:29,532 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:29,534 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:29,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:29,568 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2023-08-30 08:50:29,569 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 08:50:29,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 127 events. 2/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2023-08-30 08:50:29,572 INFO L119 LiptonReduction]: Number of co-enabled transitions 3360 [2023-08-30 08:50:34,670 INFO L134 LiptonReduction]: Checked pairs total: 9058 [2023-08-30 08:50:34,670 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-08-30 08:50:34,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:50:34,696 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;@1fc5053, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:50:34,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 08:50:34,706 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-30 08:50:34,707 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:50:34,707 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:34,708 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:50:34,709 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 08:50:34,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:34,713 INFO L85 PathProgramCache]: Analyzing trace with hash 521449222, now seen corresponding path program 1 times [2023-08-30 08:50:34,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:34,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625449073] [2023-08-30 08:50:34,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:34,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:35,342 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 08:50:35,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:35,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625449073] [2023-08-30 08:50:35,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625449073] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:35,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:35,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:50:35,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234246974] [2023-08-30 08:50:35,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:35,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:50:35,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:35,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:50:35,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:50:35,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 267 [2023-08-30 08:50:35,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:35,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 267 [2023-08-30 08:50:35,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:35,643 INFO L130 PetriNetUnfolder]: 215/414 cut-off events. [2023-08-30 08:50:35,643 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-08-30 08:50:35,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 414 events. 215/414 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1517 event pairs, 162 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 644. Up to 402 conditions per place. [2023-08-30 08:50:35,654 INFO L137 encePairwiseOnDemand]: 258/267 looper letters, 24 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-08-30 08:50:35,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 139 flow [2023-08-30 08:50:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:35,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:35,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 773 transitions. [2023-08-30 08:50:35,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48252184769038703 [2023-08-30 08:50:35,679 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 773 transitions. [2023-08-30 08:50:35,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 773 transitions. [2023-08-30 08:50:35,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:35,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 773 transitions. [2023-08-30 08:50:35,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,704 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,706 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 73 flow. Second operand 6 states and 773 transitions. [2023-08-30 08:50:35,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 139 flow [2023-08-30 08:50:35,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:35,709 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2023-08-30 08:50:35,710 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-08-30 08:50:35,712 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 08:50:35,713 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2023-08-30 08:50:35,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,713 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:35,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:50:35,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:50:35,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:35,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:35,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1014940337, now seen corresponding path program 1 times [2023-08-30 08:50:35,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:35,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647440821] [2023-08-30 08:50:35,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:35,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:35,992 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 08:50:35,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:35,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647440821] [2023-08-30 08:50:35,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647440821] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:35,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:35,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:35,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908809086] [2023-08-30 08:50:35,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:35,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:35,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:35,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:35,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:36,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 267 [2023-08-30 08:50:36,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:36,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 267 [2023-08-30 08:50:36,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:36,263 INFO L130 PetriNetUnfolder]: 201/390 cut-off events. [2023-08-30 08:50:36,263 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2023-08-30 08:50:36,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 390 events. 201/390 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1420 event pairs, 70 based on Foata normal form. 5/339 useless extension candidates. Maximal degree in co-relation 764. Up to 339 conditions per place. [2023-08-30 08:50:36,265 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 36 selfloop transitions, 11 changer transitions 0/48 dead transitions. [2023-08-30 08:50:36,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 243 flow [2023-08-30 08:50:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:36,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:36,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2023-08-30 08:50:36,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48564294631710364 [2023-08-30 08:50:36,267 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2023-08-30 08:50:36,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2023-08-30 08:50:36,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:36,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2023-08-30 08:50:36,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.66666666666666) internal successors, (778), 6 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,272 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 6 states and 778 transitions. [2023-08-30 08:50:36,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 243 flow [2023-08-30 08:50:36,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 48 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:36,273 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 169 flow [2023-08-30 08:50:36,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-08-30 08:50:36,274 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2023-08-30 08:50:36,274 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 169 flow [2023-08-30 08:50:36,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:36,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:36,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:50:36,275 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 08:50:36,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:36,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1394183507, now seen corresponding path program 1 times [2023-08-30 08:50:36,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:36,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142306580] [2023-08-30 08:50:36,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:36,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:36,531 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 08:50:36,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:36,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142306580] [2023-08-30 08:50:36,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142306580] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:36,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:36,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:36,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465642258] [2023-08-30 08:50:36,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:36,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:36,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:36,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:36,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:36,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 267 [2023-08-30 08:50:36,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:36,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 267 [2023-08-30 08:50:36,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:36,741 INFO L130 PetriNetUnfolder]: 189/370 cut-off events. [2023-08-30 08:50:36,741 INFO L131 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES. [2023-08-30 08:50:36,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 370 events. 189/370 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1352 event pairs, 64 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 830. Up to 327 conditions per place. [2023-08-30 08:50:36,743 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 39 selfloop transitions, 11 changer transitions 0/51 dead transitions. [2023-08-30 08:50:36,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 51 transitions, 329 flow [2023-08-30 08:50:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:36,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 776 transitions. [2023-08-30 08:50:36,745 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.484394506866417 [2023-08-30 08:50:36,745 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 776 transitions. [2023-08-30 08:50:36,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 776 transitions. [2023-08-30 08:50:36,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:36,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 776 transitions. [2023-08-30 08:50:36,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,749 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,750 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 169 flow. Second operand 6 states and 776 transitions. [2023-08-30 08:50:36,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 51 transitions, 329 flow [2023-08-30 08:50:36,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 51 transitions, 313 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:36,752 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 230 flow [2023-08-30 08:50:36,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=230, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2023-08-30 08:50:36,753 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2023-08-30 08:50:36,753 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 230 flow [2023-08-30 08:50:36,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:36,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:36,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:50:36,754 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 08:50:36,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:36,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1884024815, now seen corresponding path program 1 times [2023-08-30 08:50:36,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:36,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785763232] [2023-08-30 08:50:36,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:36,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:37,127 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 08:50:37,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:37,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785763232] [2023-08-30 08:50:37,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785763232] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:37,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:37,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:37,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271791646] [2023-08-30 08:50:37,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:37,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:37,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:37,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:37,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:37,462 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 08:50:37,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 230 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:37,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 08:50:37,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:37,780 INFO L130 PetriNetUnfolder]: 237/450 cut-off events. [2023-08-30 08:50:37,780 INFO L131 PetriNetUnfolder]: For 231/231 co-relation queries the response was YES. [2023-08-30 08:50:37,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 450 events. 237/450 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1705 event pairs, 41 based on Foata normal form. 8/424 useless extension candidates. Maximal degree in co-relation 1068. Up to 337 conditions per place. [2023-08-30 08:50:37,783 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 47 selfloop transitions, 25 changer transitions 0/73 dead transitions. [2023-08-30 08:50:37,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 73 transitions, 504 flow [2023-08-30 08:50:37,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:50:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:50:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1265 transitions. [2023-08-30 08:50:37,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4737827715355805 [2023-08-30 08:50:37,785 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1265 transitions. [2023-08-30 08:50:37,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1265 transitions. [2023-08-30 08:50:37,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:37,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1265 transitions. [2023-08-30 08:50:37,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.5) internal successors, (1265), 10 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,791 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,791 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 230 flow. Second operand 10 states and 1265 transitions. [2023-08-30 08:50:37,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 73 transitions, 504 flow [2023-08-30 08:50:37,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 73 transitions, 481 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:37,794 INFO L231 Difference]: Finished difference. Result has 65 places, 57 transitions, 394 flow [2023-08-30 08:50:37,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=394, PETRI_PLACES=65, PETRI_TRANSITIONS=57} [2023-08-30 08:50:37,795 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2023-08-30 08:50:37,795 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 57 transitions, 394 flow [2023-08-30 08:50:37,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:37,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:37,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:50:37,796 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 08:50:37,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:37,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1922923923, now seen corresponding path program 1 times [2023-08-30 08:50:37,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:37,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738029704] [2023-08-30 08:50:37,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:37,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:38,209 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 08:50:38,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:38,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738029704] [2023-08-30 08:50:38,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738029704] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:38,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:38,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:38,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923186587] [2023-08-30 08:50:38,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:38,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:38,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:38,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:38,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:38,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 08:50:38,379 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 57 transitions, 394 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:38,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 08:50:38,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:38,647 INFO L130 PetriNetUnfolder]: 261/490 cut-off events. [2023-08-30 08:50:38,647 INFO L131 PetriNetUnfolder]: For 504/504 co-relation queries the response was YES. [2023-08-30 08:50:38,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1577 conditions, 490 events. 261/490 cut-off events. For 504/504 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1902 event pairs, 64 based on Foata normal form. 4/460 useless extension candidates. Maximal degree in co-relation 1306. Up to 369 conditions per place. [2023-08-30 08:50:38,649 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 44 selfloop transitions, 34 changer transitions 0/79 dead transitions. [2023-08-30 08:50:38,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 79 transitions, 660 flow [2023-08-30 08:50:38,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:50:38,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:50:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1261 transitions. [2023-08-30 08:50:38,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4722846441947566 [2023-08-30 08:50:38,653 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1261 transitions. [2023-08-30 08:50:38,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1261 transitions. [2023-08-30 08:50:38,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:38,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1261 transitions. [2023-08-30 08:50:38,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,658 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,658 INFO L175 Difference]: Start difference. First operand has 65 places, 57 transitions, 394 flow. Second operand 10 states and 1261 transitions. [2023-08-30 08:50:38,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 79 transitions, 660 flow [2023-08-30 08:50:38,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 79 transitions, 611 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:38,662 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 519 flow [2023-08-30 08:50:38,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=519, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2023-08-30 08:50:38,663 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 34 predicate places. [2023-08-30 08:50:38,663 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 519 flow [2023-08-30 08:50:38,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:38,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:38,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:50:38,664 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 08:50:38,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:38,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1884061083, now seen corresponding path program 2 times [2023-08-30 08:50:38,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:38,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114513754] [2023-08-30 08:50:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:38,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:39,107 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 08:50:39,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:39,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114513754] [2023-08-30 08:50:39,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114513754] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:39,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:39,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:39,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114842948] [2023-08-30 08:50:39,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:39,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:39,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:39,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:39,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:39,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 08:50:39,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 519 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:39,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 08:50:39,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:39,675 INFO L130 PetriNetUnfolder]: 249/470 cut-off events. [2023-08-30 08:50:39,675 INFO L131 PetriNetUnfolder]: For 599/599 co-relation queries the response was YES. [2023-08-30 08:50:39,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 470 events. 249/470 cut-off events. For 599/599 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1784 event pairs, 59 based on Foata normal form. 4/444 useless extension candidates. Maximal degree in co-relation 1540. Up to 345 conditions per place. [2023-08-30 08:50:39,678 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 49 selfloop transitions, 28 changer transitions 0/78 dead transitions. [2023-08-30 08:50:39,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 78 transitions, 706 flow [2023-08-30 08:50:39,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:50:39,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:50:39,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1017 transitions. [2023-08-30 08:50:39,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.476123595505618 [2023-08-30 08:50:39,682 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1017 transitions. [2023-08-30 08:50:39,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1017 transitions. [2023-08-30 08:50:39,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:39,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1017 transitions. [2023-08-30 08:50:39,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 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 08:50:39,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 267.0) internal successors, (2403), 9 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,686 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 267.0) internal successors, (2403), 9 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,686 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 519 flow. Second operand 8 states and 1017 transitions. [2023-08-30 08:50:39,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 78 transitions, 706 flow [2023-08-30 08:50:39,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 78 transitions, 661 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:39,692 INFO L231 Difference]: Finished difference. Result has 76 places, 66 transitions, 543 flow [2023-08-30 08:50:39,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=543, PETRI_PLACES=76, PETRI_TRANSITIONS=66} [2023-08-30 08:50:39,694 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 38 predicate places. [2023-08-30 08:50:39,694 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 66 transitions, 543 flow [2023-08-30 08:50:39,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:39,695 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:39,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 08:50:39,696 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 08:50:39,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:39,697 INFO L85 PathProgramCache]: Analyzing trace with hash 221128639, now seen corresponding path program 2 times [2023-08-30 08:50:39,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:39,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714248202] [2023-08-30 08:50:39,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:39,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:40,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:40,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714248202] [2023-08-30 08:50:40,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714248202] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:40,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:40,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:40,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39960313] [2023-08-30 08:50:40,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:40,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:40,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:40,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:40,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:40,321 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 08:50:40,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 66 transitions, 543 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:40,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 08:50:40,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:40,662 INFO L130 PetriNetUnfolder]: 321/591 cut-off events. [2023-08-30 08:50:40,662 INFO L131 PetriNetUnfolder]: For 1202/1202 co-relation queries the response was YES. [2023-08-30 08:50:40,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2203 conditions, 591 events. 321/591 cut-off events. For 1202/1202 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2386 event pairs, 91 based on Foata normal form. 8/565 useless extension candidates. Maximal degree in co-relation 2078. Up to 456 conditions per place. [2023-08-30 08:50:40,665 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 62 selfloop transitions, 42 changer transitions 0/105 dead transitions. [2023-08-30 08:50:40,665 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 105 transitions, 1070 flow [2023-08-30 08:50:40,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:50:40,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:50:40,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1511 transitions. [2023-08-30 08:50:40,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4715980024968789 [2023-08-30 08:50:40,668 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1511 transitions. [2023-08-30 08:50:40,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1511 transitions. [2023-08-30 08:50:40,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:40,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1511 transitions. [2023-08-30 08:50:40,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 125.91666666666667) internal successors, (1511), 12 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,674 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,675 INFO L175 Difference]: Start difference. First operand has 76 places, 66 transitions, 543 flow. Second operand 12 states and 1511 transitions. [2023-08-30 08:50:40,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 105 transitions, 1070 flow [2023-08-30 08:50:40,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 105 transitions, 1001 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-30 08:50:40,680 INFO L231 Difference]: Finished difference. Result has 85 places, 87 transitions, 844 flow [2023-08-30 08:50:40,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=844, PETRI_PLACES=85, PETRI_TRANSITIONS=87} [2023-08-30 08:50:40,680 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 47 predicate places. [2023-08-30 08:50:40,681 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 87 transitions, 844 flow [2023-08-30 08:50:40,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:40,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:40,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 08:50:40,682 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:40,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:40,682 INFO L85 PathProgramCache]: Analyzing trace with hash 221128637, now seen corresponding path program 3 times [2023-08-30 08:50:40,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:40,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917966833] [2023-08-30 08:50:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:40,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:41,058 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 08:50:41,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:41,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917966833] [2023-08-30 08:50:41,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917966833] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:41,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:41,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:41,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088024942] [2023-08-30 08:50:41,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:41,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:41,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:41,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:41,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:41,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 08:50:41,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 87 transitions, 844 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:41,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 08:50:41,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:41,737 INFO L130 PetriNetUnfolder]: 309/571 cut-off events. [2023-08-30 08:50:41,737 INFO L131 PetriNetUnfolder]: For 1305/1305 co-relation queries the response was YES. [2023-08-30 08:50:41,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 571 events. 309/571 cut-off events. For 1305/1305 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2295 event pairs, 88 based on Foata normal form. 4/545 useless extension candidates. Maximal degree in co-relation 2128. Up to 462 conditions per place. [2023-08-30 08:50:41,740 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 66 selfloop transitions, 36 changer transitions 0/103 dead transitions. [2023-08-30 08:50:41,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 103 transitions, 1086 flow [2023-08-30 08:50:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:50:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:50:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1628 transitions. [2023-08-30 08:50:41,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4690290982425814 [2023-08-30 08:50:41,743 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1628 transitions. [2023-08-30 08:50:41,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1628 transitions. [2023-08-30 08:50:41,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:41,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1628 transitions. [2023-08-30 08:50:41,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 125.23076923076923) internal successors, (1628), 13 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,750 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,750 INFO L175 Difference]: Start difference. First operand has 85 places, 87 transitions, 844 flow. Second operand 13 states and 1628 transitions. [2023-08-30 08:50:41,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 103 transitions, 1086 flow [2023-08-30 08:50:41,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 103 transitions, 1052 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:41,756 INFO L231 Difference]: Finished difference. Result has 96 places, 88 transitions, 906 flow [2023-08-30 08:50:41,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=906, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2023-08-30 08:50:41,757 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 58 predicate places. [2023-08-30 08:50:41,757 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 906 flow [2023-08-30 08:50:41,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:41,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:41,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 08:50:41,758 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:41,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:41,759 INFO L85 PathProgramCache]: Analyzing trace with hash 221986099, now seen corresponding path program 3 times [2023-08-30 08:50:41,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:41,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247490059] [2023-08-30 08:50:41,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:41,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:42,168 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 08:50:42,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:42,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247490059] [2023-08-30 08:50:42,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247490059] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:42,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:42,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:42,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368554919] [2023-08-30 08:50:42,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:42,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:42,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:42,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:42,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:42,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 08:50:42,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 906 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:42,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 08:50:42,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:42,833 INFO L130 PetriNetUnfolder]: 285/531 cut-off events. [2023-08-30 08:50:42,833 INFO L131 PetriNetUnfolder]: For 1476/1476 co-relation queries the response was YES. [2023-08-30 08:50:42,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2211 conditions, 531 events. 285/531 cut-off events. For 1476/1476 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2112 event pairs, 68 based on Foata normal form. 8/521 useless extension candidates. Maximal degree in co-relation 2136. Up to 372 conditions per place. [2023-08-30 08:50:42,836 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 59 selfloop transitions, 52 changer transitions 2/114 dead transitions. [2023-08-30 08:50:42,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 114 transitions, 1278 flow [2023-08-30 08:50:42,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:50:42,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:50:42,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1755 transitions. [2023-08-30 08:50:42,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4695024077046549 [2023-08-30 08:50:42,839 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1755 transitions. [2023-08-30 08:50:42,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1755 transitions. [2023-08-30 08:50:42,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:42,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1755 transitions. [2023-08-30 08:50:42,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 125.35714285714286) internal successors, (1755), 14 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,846 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,846 INFO L175 Difference]: Start difference. First operand has 96 places, 88 transitions, 906 flow. Second operand 14 states and 1755 transitions. [2023-08-30 08:50:42,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 114 transitions, 1278 flow [2023-08-30 08:50:42,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 114 transitions, 1178 flow, removed 4 selfloop flow, removed 11 redundant places. [2023-08-30 08:50:42,854 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 983 flow [2023-08-30 08:50:42,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=983, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2023-08-30 08:50:42,854 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 62 predicate places. [2023-08-30 08:50:42,854 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 983 flow [2023-08-30 08:50:42,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:42,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:42,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 08:50:42,855 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 08:50:42,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:42,856 INFO L85 PathProgramCache]: Analyzing trace with hash 222022367, now seen corresponding path program 4 times [2023-08-30 08:50:42,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:42,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441954936] [2023-08-30 08:50:42,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:42,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:43,368 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 08:50:43,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:43,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441954936] [2023-08-30 08:50:43,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441954936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:43,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:43,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:43,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686167955] [2023-08-30 08:50:43,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:43,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:43,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:43,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:43,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:43,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 08:50:43,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 983 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:43,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 08:50:43,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:43,942 INFO L130 PetriNetUnfolder]: 249/465 cut-off events. [2023-08-30 08:50:43,942 INFO L131 PetriNetUnfolder]: For 1523/1523 co-relation queries the response was YES. [2023-08-30 08:50:43,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2049 conditions, 465 events. 249/465 cut-off events. For 1523/1523 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1820 event pairs, 81 based on Foata normal form. 4/455 useless extension candidates. Maximal degree in co-relation 1968. Up to 374 conditions per place. [2023-08-30 08:50:43,946 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 69 selfloop transitions, 29 changer transitions 0/99 dead transitions. [2023-08-30 08:50:43,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 99 transitions, 1191 flow [2023-08-30 08:50:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:50:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:50:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 888 transitions. [2023-08-30 08:50:43,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4751203852327448 [2023-08-30 08:50:43,948 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 888 transitions. [2023-08-30 08:50:43,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 888 transitions. [2023-08-30 08:50:43,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:43,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 888 transitions. [2023-08-30 08:50:43,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 126.85714285714286) internal successors, (888), 7 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,953 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,953 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 983 flow. Second operand 7 states and 888 transitions. [2023-08-30 08:50:43,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 99 transitions, 1191 flow [2023-08-30 08:50:43,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 99 transitions, 1114 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-08-30 08:50:43,962 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 974 flow [2023-08-30 08:50:43,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=974, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2023-08-30 08:50:43,964 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 62 predicate places. [2023-08-30 08:50:43,964 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 974 flow [2023-08-30 08:50:43,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,965 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:43,965 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:43,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 08:50:43,965 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 08:50:43,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:43,966 INFO L85 PathProgramCache]: Analyzing trace with hash 295827702, now seen corresponding path program 1 times [2023-08-30 08:50:43,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:43,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735903313] [2023-08-30 08:50:43,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:43,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:44,289 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 08:50:44,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:44,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735903313] [2023-08-30 08:50:44,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735903313] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:44,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:44,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:44,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889999208] [2023-08-30 08:50:44,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:44,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:44,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:44,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:44,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:44,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 267 [2023-08-30 08:50:44,481 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 974 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,481 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:44,481 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 267 [2023-08-30 08:50:44,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:44,723 INFO L130 PetriNetUnfolder]: 317/638 cut-off events. [2023-08-30 08:50:44,724 INFO L131 PetriNetUnfolder]: For 1667/1667 co-relation queries the response was YES. [2023-08-30 08:50:44,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2532 conditions, 638 events. 317/638 cut-off events. For 1667/1667 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2914 event pairs, 45 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 2453. Up to 204 conditions per place. [2023-08-30 08:50:44,727 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 101 selfloop transitions, 34 changer transitions 3/140 dead transitions. [2023-08-30 08:50:44,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 140 transitions, 1400 flow [2023-08-30 08:50:44,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:50:44,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:50:44,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1228 transitions. [2023-08-30 08:50:44,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5110278818143986 [2023-08-30 08:50:44,729 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1228 transitions. [2023-08-30 08:50:44,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1228 transitions. [2023-08-30 08:50:44,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:44,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1228 transitions. [2023-08-30 08:50:44,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 136.44444444444446) internal successors, (1228), 9 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,734 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,735 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 974 flow. Second operand 9 states and 1228 transitions. [2023-08-30 08:50:44,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 140 transitions, 1400 flow [2023-08-30 08:50:44,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 140 transitions, 1342 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-30 08:50:44,741 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 1059 flow [2023-08-30 08:50:44,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1059, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2023-08-30 08:50:44,742 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 67 predicate places. [2023-08-30 08:50:44,742 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 1059 flow [2023-08-30 08:50:44,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:44,742 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:44,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 08:50:44,742 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 08:50:44,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:44,743 INFO L85 PathProgramCache]: Analyzing trace with hash 990507607, now seen corresponding path program 1 times [2023-08-30 08:50:44,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:44,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333743932] [2023-08-30 08:50:44,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:44,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:45,189 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 08:50:45,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:45,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333743932] [2023-08-30 08:50:45,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333743932] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:45,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:45,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:45,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456619360] [2023-08-30 08:50:45,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:45,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:45,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:45,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:45,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:45,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:50:45,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 1059 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:45,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:50:45,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:46,126 INFO L130 PetriNetUnfolder]: 405/841 cut-off events. [2023-08-30 08:50:46,127 INFO L131 PetriNetUnfolder]: For 3717/3717 co-relation queries the response was YES. [2023-08-30 08:50:46,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3442 conditions, 841 events. 405/841 cut-off events. For 3717/3717 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4251 event pairs, 53 based on Foata normal form. 10/851 useless extension candidates. Maximal degree in co-relation 3361. Up to 371 conditions per place. [2023-08-30 08:50:46,132 INFO L137 encePairwiseOnDemand]: 253/267 looper letters, 78 selfloop transitions, 77 changer transitions 8/164 dead transitions. [2023-08-30 08:50:46,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 164 transitions, 1745 flow [2023-08-30 08:50:46,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 08:50:46,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 08:50:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2369 transitions. [2023-08-30 08:50:46,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4669820618963138 [2023-08-30 08:50:46,136 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2369 transitions. [2023-08-30 08:50:46,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2369 transitions. [2023-08-30 08:50:46,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:46,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2369 transitions. [2023-08-30 08:50:46,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 124.6842105263158) internal successors, (2369), 19 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,145 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,146 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 1059 flow. Second operand 19 states and 2369 transitions. [2023-08-30 08:50:46,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 164 transitions, 1745 flow [2023-08-30 08:50:46,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 164 transitions, 1699 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:46,160 INFO L231 Difference]: Finished difference. Result has 126 places, 123 transitions, 1494 flow [2023-08-30 08:50:46,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1017, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1494, PETRI_PLACES=126, PETRI_TRANSITIONS=123} [2023-08-30 08:50:46,161 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 88 predicate places. [2023-08-30 08:50:46,161 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 123 transitions, 1494 flow [2023-08-30 08:50:46,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:46,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:46,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 08:50:46,162 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:46,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:46,162 INFO L85 PathProgramCache]: Analyzing trace with hash 292515043, now seen corresponding path program 2 times [2023-08-30 08:50:46,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:46,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704766381] [2023-08-30 08:50:46,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:46,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:46,621 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 08:50:46,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:46,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704766381] [2023-08-30 08:50:46,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704766381] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:46,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:46,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:46,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838644342] [2023-08-30 08:50:46,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:46,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:46,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:46,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:46,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:46,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:50:46,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 123 transitions, 1494 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:46,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:50:46,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:47,687 INFO L130 PetriNetUnfolder]: 484/1054 cut-off events. [2023-08-30 08:50:47,687 INFO L131 PetriNetUnfolder]: For 6012/6012 co-relation queries the response was YES. [2023-08-30 08:50:47,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4714 conditions, 1054 events. 484/1054 cut-off events. For 6012/6012 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5946 event pairs, 75 based on Foata normal form. 15/1069 useless extension candidates. Maximal degree in co-relation 4354. Up to 233 conditions per place. [2023-08-30 08:50:47,693 INFO L137 encePairwiseOnDemand]: 253/267 looper letters, 104 selfloop transitions, 104 changer transitions 12/221 dead transitions. [2023-08-30 08:50:47,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 221 transitions, 2537 flow [2023-08-30 08:50:47,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 08:50:47,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 08:50:47,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2996 transitions. [2023-08-30 08:50:47,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4675405742821473 [2023-08-30 08:50:47,711 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2996 transitions. [2023-08-30 08:50:47,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2996 transitions. [2023-08-30 08:50:47,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:47,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2996 transitions. [2023-08-30 08:50:47,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 124.83333333333333) internal successors, (2996), 24 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 267.0) internal successors, (6675), 25 states have internal predecessors, (6675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,724 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 267.0) internal successors, (6675), 25 states have internal predecessors, (6675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,724 INFO L175 Difference]: Start difference. First operand has 126 places, 123 transitions, 1494 flow. Second operand 24 states and 2996 transitions. [2023-08-30 08:50:47,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 221 transitions, 2537 flow [2023-08-30 08:50:47,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 221 transitions, 2464 flow, removed 18 selfloop flow, removed 5 redundant places. [2023-08-30 08:50:47,742 INFO L231 Difference]: Finished difference. Result has 149 places, 155 transitions, 2058 flow [2023-08-30 08:50:47,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1438, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2058, PETRI_PLACES=149, PETRI_TRANSITIONS=155} [2023-08-30 08:50:47,744 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 111 predicate places. [2023-08-30 08:50:47,744 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 155 transitions, 2058 flow [2023-08-30 08:50:47,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:47,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:47,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 08:50:47,745 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 08:50:47,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:47,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1756700825, now seen corresponding path program 1 times [2023-08-30 08:50:47,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:47,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652218730] [2023-08-30 08:50:47,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:47,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:48,262 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 08:50:48,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:48,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652218730] [2023-08-30 08:50:48,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652218730] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:48,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:48,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:50:48,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634776974] [2023-08-30 08:50:48,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:48,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:50:48,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:48,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:50:48,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:50:48,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:50:48,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 155 transitions, 2058 flow. Second operand has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:48,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:50:48,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:49,332 INFO L130 PetriNetUnfolder]: 528/1145 cut-off events. [2023-08-30 08:50:49,333 INFO L131 PetriNetUnfolder]: For 7990/7990 co-relation queries the response was YES. [2023-08-30 08:50:49,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5640 conditions, 1145 events. 528/1145 cut-off events. For 7990/7990 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6578 event pairs, 188 based on Foata normal form. 4/1149 useless extension candidates. Maximal degree in co-relation 5158. Up to 824 conditions per place. [2023-08-30 08:50:49,340 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 118 selfloop transitions, 69 changer transitions 15/203 dead transitions. [2023-08-30 08:50:49,341 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 203 transitions, 2976 flow [2023-08-30 08:50:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:50:49,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:50:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1623 transitions. [2023-08-30 08:50:49,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4675885911840968 [2023-08-30 08:50:49,343 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1623 transitions. [2023-08-30 08:50:49,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1623 transitions. [2023-08-30 08:50:49,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:49,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1623 transitions. [2023-08-30 08:50:49,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 124.84615384615384) internal successors, (1623), 13 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,348 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,348 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,349 INFO L175 Difference]: Start difference. First operand has 149 places, 155 transitions, 2058 flow. Second operand 13 states and 1623 transitions. [2023-08-30 08:50:49,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 203 transitions, 2976 flow [2023-08-30 08:50:49,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 203 transitions, 2815 flow, removed 36 selfloop flow, removed 8 redundant places. [2023-08-30 08:50:49,376 INFO L231 Difference]: Finished difference. Result has 159 places, 169 transitions, 2397 flow [2023-08-30 08:50:49,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2397, PETRI_PLACES=159, PETRI_TRANSITIONS=169} [2023-08-30 08:50:49,376 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 121 predicate places. [2023-08-30 08:50:49,377 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 169 transitions, 2397 flow [2023-08-30 08:50:49,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:49,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:49,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 08:50:49,377 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 08:50:49,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:49,378 INFO L85 PathProgramCache]: Analyzing trace with hash 748140182, now seen corresponding path program 2 times [2023-08-30 08:50:49,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:49,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954308116] [2023-08-30 08:50:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:49,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:49,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:49,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954308116] [2023-08-30 08:50:49,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954308116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:49,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:49,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:49,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483198959] [2023-08-30 08:50:49,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:49,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:49,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:49,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:49,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:49,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 267 [2023-08-30 08:50:49,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 169 transitions, 2397 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:49,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 267 [2023-08-30 08:50:49,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:50,209 INFO L130 PetriNetUnfolder]: 545/1257 cut-off events. [2023-08-30 08:50:50,209 INFO L131 PetriNetUnfolder]: For 9224/9269 co-relation queries the response was YES. [2023-08-30 08:50:50,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6139 conditions, 1257 events. 545/1257 cut-off events. For 9224/9269 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7889 event pairs, 212 based on Foata normal form. 19/1276 useless extension candidates. Maximal degree in co-relation 5983. Up to 548 conditions per place. [2023-08-30 08:50:50,217 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 184 selfloop transitions, 38 changer transitions 1/229 dead transitions. [2023-08-30 08:50:50,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 229 transitions, 3179 flow [2023-08-30 08:50:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:50:50,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:50:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1236 transitions. [2023-08-30 08:50:50,219 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5143570536828964 [2023-08-30 08:50:50,219 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1236 transitions. [2023-08-30 08:50:50,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1236 transitions. [2023-08-30 08:50:50,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:50,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1236 transitions. [2023-08-30 08:50:50,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 137.33333333333334) internal successors, (1236), 9 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,223 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,223 INFO L175 Difference]: Start difference. First operand has 159 places, 169 transitions, 2397 flow. Second operand 9 states and 1236 transitions. [2023-08-30 08:50:50,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 229 transitions, 3179 flow [2023-08-30 08:50:50,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 229 transitions, 3129 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-08-30 08:50:50,252 INFO L231 Difference]: Finished difference. Result has 160 places, 175 transitions, 2521 flow [2023-08-30 08:50:50,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2351, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2521, PETRI_PLACES=160, PETRI_TRANSITIONS=175} [2023-08-30 08:50:50,253 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 122 predicate places. [2023-08-30 08:50:50,253 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 175 transitions, 2521 flow [2023-08-30 08:50:50,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:50,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:50,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 08:50:50,253 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:50,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:50,254 INFO L85 PathProgramCache]: Analyzing trace with hash 640261112, now seen corresponding path program 3 times [2023-08-30 08:50:50,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:50,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356411258] [2023-08-30 08:50:50,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:50,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:50,777 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 08:50:50,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:50,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356411258] [2023-08-30 08:50:50,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356411258] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:50,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:50,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:50,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622330512] [2023-08-30 08:50:50,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:50,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:50,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:50,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:50,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:51,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 08:50:51,071 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 175 transitions, 2521 flow. Second operand has 10 states, 10 states have (on average 118.1) internal successors, (1181), 10 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:51,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 08:50:51,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:51,515 INFO L130 PetriNetUnfolder]: 560/1273 cut-off events. [2023-08-30 08:50:51,515 INFO L131 PetriNetUnfolder]: For 10341/10341 co-relation queries the response was YES. [2023-08-30 08:50:51,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6405 conditions, 1273 events. 560/1273 cut-off events. For 10341/10341 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7896 event pairs, 221 based on Foata normal form. 5/1278 useless extension candidates. Maximal degree in co-relation 5858. Up to 870 conditions per place. [2023-08-30 08:50:51,525 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 159 selfloop transitions, 46 changer transitions 3/209 dead transitions. [2023-08-30 08:50:51,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 209 transitions, 3088 flow [2023-08-30 08:50:51,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:50:51,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:50:51,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1485 transitions. [2023-08-30 08:50:51,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46348314606741575 [2023-08-30 08:50:51,529 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1485 transitions. [2023-08-30 08:50:51,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1485 transitions. [2023-08-30 08:50:51,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:51,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1485 transitions. [2023-08-30 08:50:51,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 123.75) internal successors, (1485), 12 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 08:50:51,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,534 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,534 INFO L175 Difference]: Start difference. First operand has 160 places, 175 transitions, 2521 flow. Second operand 12 states and 1485 transitions. [2023-08-30 08:50:51,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 209 transitions, 3088 flow [2023-08-30 08:50:51,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 209 transitions, 3036 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:51,567 INFO L231 Difference]: Finished difference. Result has 169 places, 178 transitions, 2615 flow [2023-08-30 08:50:51,567 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2469, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2615, PETRI_PLACES=169, PETRI_TRANSITIONS=178} [2023-08-30 08:50:51,568 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 131 predicate places. [2023-08-30 08:50:51,568 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 178 transitions, 2615 flow [2023-08-30 08:50:51,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.1) internal successors, (1181), 10 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:51,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:51,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 08:50:51,568 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 08:50:51,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1357731734, now seen corresponding path program 4 times [2023-08-30 08:50:51,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:51,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325092032] [2023-08-30 08:50:51,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:51,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:51,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:51,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:51,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325092032] [2023-08-30 08:50:51,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325092032] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:51,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:51,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:51,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109835789] [2023-08-30 08:50:51,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:51,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:51,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:51,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:51,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:51,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 267 [2023-08-30 08:50:51,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 178 transitions, 2615 flow. Second operand has 7 states, 7 states have (on average 130.57142857142858) internal successors, (914), 7 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:51,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 267 [2023-08-30 08:50:51,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:52,083 INFO L130 PetriNetUnfolder]: 349/894 cut-off events. [2023-08-30 08:50:52,083 INFO L131 PetriNetUnfolder]: For 7847/7847 co-relation queries the response was YES. [2023-08-30 08:50:52,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4323 conditions, 894 events. 349/894 cut-off events. For 7847/7847 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5489 event pairs, 148 based on Foata normal form. 36/930 useless extension candidates. Maximal degree in co-relation 4132. Up to 506 conditions per place. [2023-08-30 08:50:52,092 INFO L137 encePairwiseOnDemand]: 260/267 looper letters, 123 selfloop transitions, 18 changer transitions 0/147 dead transitions. [2023-08-30 08:50:52,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 147 transitions, 2200 flow [2023-08-30 08:50:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:52,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 817 transitions. [2023-08-30 08:50:52,093 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5099875156054932 [2023-08-30 08:50:52,093 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 817 transitions. [2023-08-30 08:50:52,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 817 transitions. [2023-08-30 08:50:52,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:52,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 817 transitions. [2023-08-30 08:50:52,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,096 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,096 INFO L175 Difference]: Start difference. First operand has 169 places, 178 transitions, 2615 flow. Second operand 6 states and 817 transitions. [2023-08-30 08:50:52,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 147 transitions, 2200 flow [2023-08-30 08:50:52,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 147 transitions, 1963 flow, removed 36 selfloop flow, removed 21 redundant places. [2023-08-30 08:50:52,113 INFO L231 Difference]: Finished difference. Result has 149 places, 134 transitions, 1628 flow [2023-08-30 08:50:52,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1546, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1628, PETRI_PLACES=149, PETRI_TRANSITIONS=134} [2023-08-30 08:50:52,114 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 111 predicate places. [2023-08-30 08:50:52,114 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 134 transitions, 1628 flow [2023-08-30 08:50:52,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.57142857142858) internal successors, (914), 7 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:52,115 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:52,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 08:50:52,115 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 08:50:52,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:52,115 INFO L85 PathProgramCache]: Analyzing trace with hash 749048795, now seen corresponding path program 2 times [2023-08-30 08:50:52,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:52,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075348824] [2023-08-30 08:50:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:52,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:52,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:52,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:52,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075348824] [2023-08-30 08:50:52,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075348824] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:52,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:52,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:50:52,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938801353] [2023-08-30 08:50:52,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:52,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:50:52,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:50:52,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:50:52,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:50:52,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 134 transitions, 1628 flow. Second operand has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:52,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:50:52,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:53,504 INFO L130 PetriNetUnfolder]: 364/908 cut-off events. [2023-08-30 08:50:53,504 INFO L131 PetriNetUnfolder]: For 5992/5992 co-relation queries the response was YES. [2023-08-30 08:50:53,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4212 conditions, 908 events. 364/908 cut-off events. For 5992/5992 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5400 event pairs, 167 based on Foata normal form. 4/912 useless extension candidates. Maximal degree in co-relation 3970. Up to 713 conditions per place. [2023-08-30 08:50:53,530 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 106 selfloop transitions, 42 changer transitions 11/160 dead transitions. [2023-08-30 08:50:53,530 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 160 transitions, 2104 flow [2023-08-30 08:50:53,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:50:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:50:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1741 transitions. [2023-08-30 08:50:53,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46575708935259497 [2023-08-30 08:50:53,533 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1741 transitions. [2023-08-30 08:50:53,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1741 transitions. [2023-08-30 08:50:53,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:53,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1741 transitions. [2023-08-30 08:50:53,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 124.35714285714286) internal successors, (1741), 14 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,553 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,553 INFO L175 Difference]: Start difference. First operand has 149 places, 134 transitions, 1628 flow. Second operand 14 states and 1741 transitions. [2023-08-30 08:50:53,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 160 transitions, 2104 flow [2023-08-30 08:50:53,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 160 transitions, 2061 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:53,582 INFO L231 Difference]: Finished difference. Result has 160 places, 132 transitions, 1641 flow [2023-08-30 08:50:53,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1589, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1641, PETRI_PLACES=160, PETRI_TRANSITIONS=132} [2023-08-30 08:50:53,583 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 122 predicate places. [2023-08-30 08:50:53,583 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 132 transitions, 1641 flow [2023-08-30 08:50:53,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:53,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:53,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 08:50:53,584 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 08:50:53,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:53,585 INFO L85 PathProgramCache]: Analyzing trace with hash 518668265, now seen corresponding path program 3 times [2023-08-30 08:50:53,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:53,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452508163] [2023-08-30 08:50:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:53,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:54,036 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 08:50:54,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:54,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452508163] [2023-08-30 08:50:54,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452508163] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:54,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:54,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:50:54,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026078606] [2023-08-30 08:50:54,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:54,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:50:54,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:54,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:50:54,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:50:54,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:50:54,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 132 transitions, 1641 flow. Second operand has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:54,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:54,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:50:54,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:55,097 INFO L130 PetriNetUnfolder]: 359/905 cut-off events. [2023-08-30 08:50:55,097 INFO L131 PetriNetUnfolder]: For 5889/5889 co-relation queries the response was YES. [2023-08-30 08:50:55,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4249 conditions, 905 events. 359/905 cut-off events. For 5889/5889 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5426 event pairs, 134 based on Foata normal form. 4/909 useless extension candidates. Maximal degree in co-relation 4157. Up to 681 conditions per place. [2023-08-30 08:50:55,102 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 108 selfloop transitions, 54 changer transitions 3/166 dead transitions. [2023-08-30 08:50:55,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 166 transitions, 2176 flow [2023-08-30 08:50:55,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:50:55,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:50:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2229 transitions. [2023-08-30 08:50:55,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4637952559300874 [2023-08-30 08:50:55,105 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2229 transitions. [2023-08-30 08:50:55,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2229 transitions. [2023-08-30 08:50:55,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:55,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2229 transitions. [2023-08-30 08:50:55,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 123.83333333333333) internal successors, (2229), 18 states have internal predecessors, (2229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,112 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,112 INFO L175 Difference]: Start difference. First operand has 160 places, 132 transitions, 1641 flow. Second operand 18 states and 2229 transitions. [2023-08-30 08:50:55,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 166 transitions, 2176 flow [2023-08-30 08:50:55,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 166 transitions, 2071 flow, removed 13 selfloop flow, removed 12 redundant places. [2023-08-30 08:50:55,126 INFO L231 Difference]: Finished difference. Result has 167 places, 139 transitions, 1765 flow [2023-08-30 08:50:55,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1542, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1765, PETRI_PLACES=167, PETRI_TRANSITIONS=139} [2023-08-30 08:50:55,126 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 129 predicate places. [2023-08-30 08:50:55,127 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 139 transitions, 1765 flow [2023-08-30 08:50:55,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,127 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:55,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:55,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 08:50:55,127 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 08:50:55,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:55,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2051198523, now seen corresponding path program 3 times [2023-08-30 08:50:55,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:55,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013800011] [2023-08-30 08:50:55,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:55,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:55,500 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 08:50:55,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:55,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013800011] [2023-08-30 08:50:55,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013800011] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:55,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:55,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:55,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659181095] [2023-08-30 08:50:55,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:55,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:55,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:55,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:55,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:55,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:50:55,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 139 transitions, 1765 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:55,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:50:55,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:56,353 INFO L130 PetriNetUnfolder]: 383/965 cut-off events. [2023-08-30 08:50:56,353 INFO L131 PetriNetUnfolder]: For 6581/6581 co-relation queries the response was YES. [2023-08-30 08:50:56,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4669 conditions, 965 events. 383/965 cut-off events. For 6581/6581 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5944 event pairs, 109 based on Foata normal form. 5/970 useless extension candidates. Maximal degree in co-relation 4428. Up to 599 conditions per place. [2023-08-30 08:50:56,358 INFO L137 encePairwiseOnDemand]: 252/267 looper letters, 105 selfloop transitions, 67 changer transitions 3/176 dead transitions. [2023-08-30 08:50:56,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 176 transitions, 2350 flow [2023-08-30 08:50:56,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:50:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:50:56,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1633 transitions. [2023-08-30 08:50:56,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47046960530106596 [2023-08-30 08:50:56,360 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1633 transitions. [2023-08-30 08:50:56,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1633 transitions. [2023-08-30 08:50:56,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:56,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1633 transitions. [2023-08-30 08:50:56,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 125.61538461538461) internal successors, (1633), 13 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,365 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,365 INFO L175 Difference]: Start difference. First operand has 167 places, 139 transitions, 1765 flow. Second operand 13 states and 1633 transitions. [2023-08-30 08:50:56,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 176 transitions, 2350 flow [2023-08-30 08:50:56,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 176 transitions, 2258 flow, removed 7 selfloop flow, removed 12 redundant places. [2023-08-30 08:50:56,381 INFO L231 Difference]: Finished difference. Result has 170 places, 149 transitions, 1979 flow [2023-08-30 08:50:56,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1653, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1979, PETRI_PLACES=170, PETRI_TRANSITIONS=149} [2023-08-30 08:50:56,382 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2023-08-30 08:50:56,382 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 149 transitions, 1979 flow [2023-08-30 08:50:56,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:56,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:56,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 08:50:56,383 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:56,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:56,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1421320481, now seen corresponding path program 4 times [2023-08-30 08:50:56,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:56,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055261845] [2023-08-30 08:50:56,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:56,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:56,635 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 08:50:56,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:56,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055261845] [2023-08-30 08:50:56,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055261845] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:56,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:56,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:56,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080161221] [2023-08-30 08:50:56,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:56,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:56,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:56,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:56,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:56,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 267 [2023-08-30 08:50:56,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 149 transitions, 1979 flow. Second operand has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:56,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 267 [2023-08-30 08:50:56,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:56,872 INFO L130 PetriNetUnfolder]: 238/670 cut-off events. [2023-08-30 08:50:56,873 INFO L131 PetriNetUnfolder]: For 4732/4732 co-relation queries the response was YES. [2023-08-30 08:50:56,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3188 conditions, 670 events. 238/670 cut-off events. For 4732/4732 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4003 event pairs, 74 based on Foata normal form. 8/677 useless extension candidates. Maximal degree in co-relation 3125. Up to 295 conditions per place. [2023-08-30 08:50:56,879 INFO L137 encePairwiseOnDemand]: 260/267 looper letters, 97 selfloop transitions, 22 changer transitions 1/127 dead transitions. [2023-08-30 08:50:56,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 127 transitions, 1782 flow [2023-08-30 08:50:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:56,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:56,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 818 transitions. [2023-08-30 08:50:56,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5106117353308365 [2023-08-30 08:50:56,882 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 818 transitions. [2023-08-30 08:50:56,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 818 transitions. [2023-08-30 08:50:56,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:56,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 818 transitions. [2023-08-30 08:50:56,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,885 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,886 INFO L175 Difference]: Start difference. First operand has 170 places, 149 transitions, 1979 flow. Second operand 6 states and 818 transitions. [2023-08-30 08:50:56,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 127 transitions, 1782 flow [2023-08-30 08:50:56,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 127 transitions, 1604 flow, removed 22 selfloop flow, removed 24 redundant places. [2023-08-30 08:50:56,902 INFO L231 Difference]: Finished difference. Result has 143 places, 114 transitions, 1343 flow [2023-08-30 08:50:56,903 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1343, PETRI_PLACES=143, PETRI_TRANSITIONS=114} [2023-08-30 08:50:56,904 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 105 predicate places. [2023-08-30 08:50:56,904 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 114 transitions, 1343 flow [2023-08-30 08:50:56,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,905 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:56,905 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:56,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 08:50:56,905 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:56,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:56,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1552931986, now seen corresponding path program 1 times [2023-08-30 08:50:56,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:56,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527718306] [2023-08-30 08:50:56,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:56,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:57,653 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 08:50:57,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:57,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527718306] [2023-08-30 08:50:57,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527718306] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:57,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:57,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:50:57,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777161695] [2023-08-30 08:50:57,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:57,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:50:57,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:57,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:50:57,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:50:58,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 08:50:58,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 114 transitions, 1343 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:58,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 08:50:58,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:58,579 INFO L130 PetriNetUnfolder]: 255/697 cut-off events. [2023-08-30 08:50:58,579 INFO L131 PetriNetUnfolder]: For 3645/3645 co-relation queries the response was YES. [2023-08-30 08:50:58,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3125 conditions, 697 events. 255/697 cut-off events. For 3645/3645 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4074 event pairs, 126 based on Foata normal form. 3/700 useless extension candidates. Maximal degree in co-relation 2879. Up to 365 conditions per place. [2023-08-30 08:50:58,584 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 104 selfloop transitions, 35 changer transitions 3/143 dead transitions. [2023-08-30 08:50:58,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 143 transitions, 1742 flow [2023-08-30 08:50:58,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:50:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:50:58,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1369 transitions. [2023-08-30 08:50:58,587 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46612189308818525 [2023-08-30 08:50:58,587 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1369 transitions. [2023-08-30 08:50:58,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1369 transitions. [2023-08-30 08:50:58,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:58,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1369 transitions. [2023-08-30 08:50:58,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 124.45454545454545) internal successors, (1369), 11 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,593 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,593 INFO L175 Difference]: Start difference. First operand has 143 places, 114 transitions, 1343 flow. Second operand 11 states and 1369 transitions. [2023-08-30 08:50:58,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 143 transitions, 1742 flow [2023-08-30 08:50:58,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 143 transitions, 1705 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:58,607 INFO L231 Difference]: Finished difference. Result has 149 places, 112 transitions, 1357 flow [2023-08-30 08:50:58,607 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1357, PETRI_PLACES=149, PETRI_TRANSITIONS=112} [2023-08-30 08:50:58,609 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 111 predicate places. [2023-08-30 08:50:58,610 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 112 transitions, 1357 flow [2023-08-30 08:50:58,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:58,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:58,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 08:50:58,611 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 08:50:58,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:58,611 INFO L85 PathProgramCache]: Analyzing trace with hash 306059660, now seen corresponding path program 1 times [2023-08-30 08:50:58,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:58,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059871141] [2023-08-30 08:50:58,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:58,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:59,288 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 08:50:59,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:59,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059871141] [2023-08-30 08:50:59,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059871141] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:59,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:59,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:50:59,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461828921] [2023-08-30 08:50:59,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:59,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:50:59,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:59,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:50:59,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:50:59,661 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:50:59,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 112 transitions, 1357 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:59,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:50:59,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:00,357 INFO L130 PetriNetUnfolder]: 254/694 cut-off events. [2023-08-30 08:51:00,357 INFO L131 PetriNetUnfolder]: For 3603/3603 co-relation queries the response was YES. [2023-08-30 08:51:00,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3145 conditions, 694 events. 254/694 cut-off events. For 3603/3603 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4044 event pairs, 134 based on Foata normal form. 2/696 useless extension candidates. Maximal degree in co-relation 2859. Up to 548 conditions per place. [2023-08-30 08:51:00,361 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 86 selfloop transitions, 41 changer transitions 1/129 dead transitions. [2023-08-30 08:51:00,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 129 transitions, 1698 flow [2023-08-30 08:51:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:51:00,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:51:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1966 transitions. [2023-08-30 08:51:00,370 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4602059925093633 [2023-08-30 08:51:00,370 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1966 transitions. [2023-08-30 08:51:00,370 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1966 transitions. [2023-08-30 08:51:00,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:00,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1966 transitions. [2023-08-30 08:51:00,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.875) internal successors, (1966), 16 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:00,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:00,380 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:00,380 INFO L175 Difference]: Start difference. First operand has 149 places, 112 transitions, 1357 flow. Second operand 16 states and 1966 transitions. [2023-08-30 08:51:00,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 129 transitions, 1698 flow [2023-08-30 08:51:00,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 129 transitions, 1588 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-08-30 08:51:00,390 INFO L231 Difference]: Finished difference. Result has 152 places, 111 transitions, 1330 flow [2023-08-30 08:51:00,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1248, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1330, PETRI_PLACES=152, PETRI_TRANSITIONS=111} [2023-08-30 08:51:00,391 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 114 predicate places. [2023-08-30 08:51:00,391 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 111 transitions, 1330 flow [2023-08-30 08:51:00,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:00,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:00,392 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:00,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 08:51:00,392 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 08:51:00,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:00,393 INFO L85 PathProgramCache]: Analyzing trace with hash 306059661, now seen corresponding path program 1 times [2023-08-30 08:51:00,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:00,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205808113] [2023-08-30 08:51:00,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:00,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:00,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:00,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205808113] [2023-08-30 08:51:00,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205808113] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:00,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:00,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:00,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293828392] [2023-08-30 08:51:00,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:00,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:00,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:00,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:00,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:01,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:51:01,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 111 transitions, 1330 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:01,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:01,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:51:01,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:02,168 INFO L130 PetriNetUnfolder]: 193/563 cut-off events. [2023-08-30 08:51:02,178 INFO L131 PetriNetUnfolder]: For 3436/3436 co-relation queries the response was YES. [2023-08-30 08:51:02,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2691 conditions, 563 events. 193/563 cut-off events. For 3436/3436 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3153 event pairs, 72 based on Foata normal form. 2/565 useless extension candidates. Maximal degree in co-relation 2511. Up to 426 conditions per place. [2023-08-30 08:51:02,182 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 79 selfloop transitions, 35 changer transitions 12/127 dead transitions. [2023-08-30 08:51:02,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 127 transitions, 1656 flow [2023-08-30 08:51:02,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:51:02,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:51:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1964 transitions. [2023-08-30 08:51:02,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4597378277153558 [2023-08-30 08:51:02,184 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1964 transitions. [2023-08-30 08:51:02,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1964 transitions. [2023-08-30 08:51:02,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:02,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1964 transitions. [2023-08-30 08:51:02,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.75) internal successors, (1964), 16 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:02,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:02,206 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:02,206 INFO L175 Difference]: Start difference. First operand has 152 places, 111 transitions, 1330 flow. Second operand 16 states and 1964 transitions. [2023-08-30 08:51:02,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 127 transitions, 1656 flow [2023-08-30 08:51:02,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 127 transitions, 1502 flow, removed 7 selfloop flow, removed 18 redundant places. [2023-08-30 08:51:02,215 INFO L231 Difference]: Finished difference. Result has 148 places, 103 transitions, 1196 flow [2023-08-30 08:51:02,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1196, PETRI_PLACES=148, PETRI_TRANSITIONS=103} [2023-08-30 08:51:02,216 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 110 predicate places. [2023-08-30 08:51:02,216 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 103 transitions, 1196 flow [2023-08-30 08:51:02,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:02,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:02,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:02,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 08:51:02,217 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 08:51:02,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash 474247600, now seen corresponding path program 2 times [2023-08-30 08:51:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:02,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035738941] [2023-08-30 08:51:02,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:02,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:02,732 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 08:51:02,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:02,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035738941] [2023-08-30 08:51:02,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035738941] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:02,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:02,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:02,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702315155] [2023-08-30 08:51:02,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:02,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:02,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:02,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:02,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:03,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 08:51:03,085 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 103 transitions, 1196 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,085 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:03,085 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 08:51:03,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:03,367 INFO L130 PetriNetUnfolder]: 183/535 cut-off events. [2023-08-30 08:51:03,368 INFO L131 PetriNetUnfolder]: For 3282/3282 co-relation queries the response was YES. [2023-08-30 08:51:03,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2488 conditions, 535 events. 183/535 cut-off events. For 3282/3282 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2973 event pairs, 69 based on Foata normal form. 3/538 useless extension candidates. Maximal degree in co-relation 2158. Up to 355 conditions per place. [2023-08-30 08:51:03,370 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 84 selfloop transitions, 33 changer transitions 0/118 dead transitions. [2023-08-30 08:51:03,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 118 transitions, 1485 flow [2023-08-30 08:51:03,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:51:03,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:51:03,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1225 transitions. [2023-08-30 08:51:03,386 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45880149812734083 [2023-08-30 08:51:03,386 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1225 transitions. [2023-08-30 08:51:03,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1225 transitions. [2023-08-30 08:51:03,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:03,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1225 transitions. [2023-08-30 08:51:03,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.5) internal successors, (1225), 10 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,394 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,394 INFO L175 Difference]: Start difference. First operand has 148 places, 103 transitions, 1196 flow. Second operand 10 states and 1225 transitions. [2023-08-30 08:51:03,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 118 transitions, 1485 flow [2023-08-30 08:51:03,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 118 transitions, 1383 flow, removed 10 selfloop flow, removed 12 redundant places. [2023-08-30 08:51:03,404 INFO L231 Difference]: Finished difference. Result has 132 places, 101 transitions, 1144 flow [2023-08-30 08:51:03,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1144, PETRI_PLACES=132, PETRI_TRANSITIONS=101} [2023-08-30 08:51:03,404 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 94 predicate places. [2023-08-30 08:51:03,405 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 101 transitions, 1144 flow [2023-08-30 08:51:03,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:03,405 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:03,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 08:51:03,405 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 08:51:03,406 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:03,406 INFO L85 PathProgramCache]: Analyzing trace with hash 998819386, now seen corresponding path program 3 times [2023-08-30 08:51:03,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:03,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767145254] [2023-08-30 08:51:03,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:03,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:03,976 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 08:51:03,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:03,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767145254] [2023-08-30 08:51:03,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767145254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:03,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:03,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:03,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198825718] [2023-08-30 08:51:03,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:03,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:03,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:03,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:03,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:04,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 08:51:04,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 101 transitions, 1144 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:04,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 08:51:04,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:04,614 INFO L130 PetriNetUnfolder]: 194/562 cut-off events. [2023-08-30 08:51:04,614 INFO L131 PetriNetUnfolder]: For 2861/2861 co-relation queries the response was YES. [2023-08-30 08:51:04,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2526 conditions, 562 events. 194/562 cut-off events. For 2861/2861 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3161 event pairs, 58 based on Foata normal form. 3/565 useless extension candidates. Maximal degree in co-relation 2292. Up to 262 conditions per place. [2023-08-30 08:51:04,616 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 85 selfloop transitions, 44 changer transitions 0/130 dead transitions. [2023-08-30 08:51:04,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 130 transitions, 1548 flow [2023-08-30 08:51:04,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:51:04,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:51:04,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1235 transitions. [2023-08-30 08:51:04,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46254681647940077 [2023-08-30 08:51:04,638 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1235 transitions. [2023-08-30 08:51:04,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1235 transitions. [2023-08-30 08:51:04,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:04,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1235 transitions. [2023-08-30 08:51:04,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.5) internal successors, (1235), 10 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,641 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,641 INFO L175 Difference]: Start difference. First operand has 132 places, 101 transitions, 1144 flow. Second operand 10 states and 1235 transitions. [2023-08-30 08:51:04,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 130 transitions, 1548 flow [2023-08-30 08:51:04,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 130 transitions, 1484 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-30 08:51:04,648 INFO L231 Difference]: Finished difference. Result has 136 places, 107 transitions, 1268 flow [2023-08-30 08:51:04,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1268, PETRI_PLACES=136, PETRI_TRANSITIONS=107} [2023-08-30 08:51:04,649 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 98 predicate places. [2023-08-30 08:51:04,649 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 107 transitions, 1268 flow [2023-08-30 08:51:04,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:04,650 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:04,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 08:51:04,650 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 08:51:04,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:04,650 INFO L85 PathProgramCache]: Analyzing trace with hash 998819387, now seen corresponding path program 1 times [2023-08-30 08:51:04,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:04,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826897787] [2023-08-30 08:51:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:04,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:05,122 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 08:51:05,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:05,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826897787] [2023-08-30 08:51:05,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826897787] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:05,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:05,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:05,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520333295] [2023-08-30 08:51:05,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:05,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:05,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:05,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:05,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:05,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:51:05,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 107 transitions, 1268 flow. Second operand has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:05,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:51:05,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:05,839 INFO L130 PetriNetUnfolder]: 191/556 cut-off events. [2023-08-30 08:51:05,839 INFO L131 PetriNetUnfolder]: For 3113/3113 co-relation queries the response was YES. [2023-08-30 08:51:05,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2580 conditions, 556 events. 191/556 cut-off events. For 3113/3113 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3128 event pairs, 52 based on Foata normal form. 3/559 useless extension candidates. Maximal degree in co-relation 2362. Up to 281 conditions per place. [2023-08-30 08:51:05,842 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 63 selfloop transitions, 56 changer transitions 0/120 dead transitions. [2023-08-30 08:51:05,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 120 transitions, 1548 flow [2023-08-30 08:51:05,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1840 transitions. [2023-08-30 08:51:05,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45942571785268416 [2023-08-30 08:51:05,844 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1840 transitions. [2023-08-30 08:51:05,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1840 transitions. [2023-08-30 08:51:05,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:05,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1840 transitions. [2023-08-30 08:51:05,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 122.66666666666667) internal successors, (1840), 15 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,848 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,848 INFO L175 Difference]: Start difference. First operand has 136 places, 107 transitions, 1268 flow. Second operand 15 states and 1840 transitions. [2023-08-30 08:51:05,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 120 transitions, 1548 flow [2023-08-30 08:51:05,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 120 transitions, 1486 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:05,857 INFO L231 Difference]: Finished difference. Result has 145 places, 106 transitions, 1328 flow [2023-08-30 08:51:05,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1328, PETRI_PLACES=145, PETRI_TRANSITIONS=106} [2023-08-30 08:51:05,857 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 107 predicate places. [2023-08-30 08:51:05,857 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 106 transitions, 1328 flow [2023-08-30 08:51:05,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:05,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:05,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 08:51:05,858 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 08:51:05,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:05,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1511463701, now seen corresponding path program 2 times [2023-08-30 08:51:05,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:05,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947013910] [2023-08-30 08:51:05,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:05,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:06,276 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 08:51:06,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:06,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947013910] [2023-08-30 08:51:06,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947013910] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:06,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:06,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:06,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720393576] [2023-08-30 08:51:06,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:06,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:06,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:06,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:06,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:06,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 08:51:06,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 106 transitions, 1328 flow. Second operand has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:06,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:06,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 08:51:06,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:06,968 INFO L130 PetriNetUnfolder]: 189/539 cut-off events. [2023-08-30 08:51:06,968 INFO L131 PetriNetUnfolder]: For 3349/3349 co-relation queries the response was YES. [2023-08-30 08:51:06,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2618 conditions, 539 events. 189/539 cut-off events. For 3349/3349 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2992 event pairs, 30 based on Foata normal form. 3/542 useless extension candidates. Maximal degree in co-relation 2426. Up to 185 conditions per place. [2023-08-30 08:51:06,971 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 54 selfloop transitions, 75 changer transitions 0/130 dead transitions. [2023-08-30 08:51:06,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 130 transitions, 1690 flow [2023-08-30 08:51:06,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:51:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:51:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2216 transitions. [2023-08-30 08:51:06,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.461090303786933 [2023-08-30 08:51:06,981 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2216 transitions. [2023-08-30 08:51:06,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2216 transitions. [2023-08-30 08:51:06,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:06,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2216 transitions. [2023-08-30 08:51:06,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 123.11111111111111) internal successors, (2216), 18 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:06,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:06,987 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:06,987 INFO L175 Difference]: Start difference. First operand has 145 places, 106 transitions, 1328 flow. Second operand 18 states and 2216 transitions. [2023-08-30 08:51:06,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 130 transitions, 1690 flow [2023-08-30 08:51:06,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 130 transitions, 1547 flow, removed 2 selfloop flow, removed 14 redundant places. [2023-08-30 08:51:06,996 INFO L231 Difference]: Finished difference. Result has 151 places, 108 transitions, 1438 flow [2023-08-30 08:51:06,997 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1438, PETRI_PLACES=151, PETRI_TRANSITIONS=108} [2023-08-30 08:51:06,999 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 113 predicate places. [2023-08-30 08:51:07,000 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 108 transitions, 1438 flow [2023-08-30 08:51:07,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:07,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:07,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 08:51:07,000 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:07,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:07,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1511463702, now seen corresponding path program 4 times [2023-08-30 08:51:07,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:07,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43200215] [2023-08-30 08:51:07,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:07,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:07,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:07,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43200215] [2023-08-30 08:51:07,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43200215] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:07,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:07,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:07,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093733713] [2023-08-30 08:51:07,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:07,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:07,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:07,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:07,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:07,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 08:51:07,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 108 transitions, 1438 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:07,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 08:51:07,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:07,973 INFO L130 PetriNetUnfolder]: 186/532 cut-off events. [2023-08-30 08:51:07,973 INFO L131 PetriNetUnfolder]: For 3622/3622 co-relation queries the response was YES. [2023-08-30 08:51:07,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2688 conditions, 532 events. 186/532 cut-off events. For 3622/3622 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2933 event pairs, 27 based on Foata normal form. 3/535 useless extension candidates. Maximal degree in co-relation 2427. Up to 179 conditions per place. [2023-08-30 08:51:07,976 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 82 selfloop transitions, 50 changer transitions 0/133 dead transitions. [2023-08-30 08:51:07,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 133 transitions, 1770 flow [2023-08-30 08:51:07,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:51:07,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:51:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1472 transitions. [2023-08-30 08:51:07,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45942571785268416 [2023-08-30 08:51:07,977 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1472 transitions. [2023-08-30 08:51:07,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1472 transitions. [2023-08-30 08:51:07,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:07,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1472 transitions. [2023-08-30 08:51:07,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.66666666666667) internal successors, (1472), 12 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,981 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,981 INFO L175 Difference]: Start difference. First operand has 151 places, 108 transitions, 1438 flow. Second operand 12 states and 1472 transitions. [2023-08-30 08:51:07,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 133 transitions, 1770 flow [2023-08-30 08:51:07,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 133 transitions, 1642 flow, removed 7 selfloop flow, removed 15 redundant places. [2023-08-30 08:51:07,991 INFO L231 Difference]: Finished difference. Result has 147 places, 106 transitions, 1380 flow [2023-08-30 08:51:07,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1380, PETRI_PLACES=147, PETRI_TRANSITIONS=106} [2023-08-30 08:51:07,993 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 109 predicate places. [2023-08-30 08:51:07,993 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 106 transitions, 1380 flow [2023-08-30 08:51:07,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:07,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:07,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 08:51:07,994 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 08:51:07,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:07,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1123453845, now seen corresponding path program 1 times [2023-08-30 08:51:07,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:07,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558564586] [2023-08-30 08:51:07,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:07,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:08,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:08,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:08,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558564586] [2023-08-30 08:51:08,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558564586] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:08,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:08,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:08,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719036958] [2023-08-30 08:51:08,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:08,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:08,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:08,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:08,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:09,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:51:09,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 106 transitions, 1380 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:09,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:09,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:51:09,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:10,188 INFO L130 PetriNetUnfolder]: 221/627 cut-off events. [2023-08-30 08:51:10,188 INFO L131 PetriNetUnfolder]: For 4109/4109 co-relation queries the response was YES. [2023-08-30 08:51:10,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3220 conditions, 627 events. 221/627 cut-off events. For 4109/4109 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3673 event pairs, 36 based on Foata normal form. 5/632 useless extension candidates. Maximal degree in co-relation 2950. Up to 195 conditions per place. [2023-08-30 08:51:10,191 INFO L137 encePairwiseOnDemand]: 252/267 looper letters, 90 selfloop transitions, 120 changer transitions 0/211 dead transitions. [2023-08-30 08:51:10,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 211 transitions, 2968 flow [2023-08-30 08:51:10,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-30 08:51:10,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-30 08:51:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3447 transitions. [2023-08-30 08:51:10,216 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4303370786516854 [2023-08-30 08:51:10,216 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3447 transitions. [2023-08-30 08:51:10,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3447 transitions. [2023-08-30 08:51:10,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:10,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3447 transitions. [2023-08-30 08:51:10,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 114.9) internal successors, (3447), 30 states have internal predecessors, (3447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:10,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:10,223 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:10,223 INFO L175 Difference]: Start difference. First operand has 147 places, 106 transitions, 1380 flow. Second operand 30 states and 3447 transitions. [2023-08-30 08:51:10,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 211 transitions, 2968 flow [2023-08-30 08:51:10,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 211 transitions, 2677 flow, removed 16 selfloop flow, removed 12 redundant places. [2023-08-30 08:51:10,234 INFO L231 Difference]: Finished difference. Result has 167 places, 171 transitions, 2327 flow [2023-08-30 08:51:10,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2327, PETRI_PLACES=167, PETRI_TRANSITIONS=171} [2023-08-30 08:51:10,236 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 129 predicate places. [2023-08-30 08:51:10,236 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 171 transitions, 2327 flow [2023-08-30 08:51:10,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:10,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:10,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:10,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 08:51:10,236 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:10,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:10,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1635320116, now seen corresponding path program 1 times [2023-08-30 08:51:10,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:10,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976203659] [2023-08-30 08:51:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:10,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:10,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:10,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:10,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976203659] [2023-08-30 08:51:10,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976203659] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:10,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:10,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394918251] [2023-08-30 08:51:10,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:10,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:10,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:11,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:11,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 171 transitions, 2327 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:11,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:11,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:11,975 INFO L130 PetriNetUnfolder]: 235/677 cut-off events. [2023-08-30 08:51:11,975 INFO L131 PetriNetUnfolder]: For 4337/4337 co-relation queries the response was YES. [2023-08-30 08:51:11,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3661 conditions, 677 events. 235/677 cut-off events. For 4337/4337 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4086 event pairs, 76 based on Foata normal form. 5/682 useless extension candidates. Maximal degree in co-relation 3138. Up to 470 conditions per place. [2023-08-30 08:51:11,979 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 139 selfloop transitions, 63 changer transitions 0/203 dead transitions. [2023-08-30 08:51:11,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 203 transitions, 3018 flow [2023-08-30 08:51:11,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:51:11,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:51:11,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1259 transitions. [2023-08-30 08:51:11,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42866870956758596 [2023-08-30 08:51:11,982 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1259 transitions. [2023-08-30 08:51:11,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1259 transitions. [2023-08-30 08:51:11,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:11,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1259 transitions. [2023-08-30 08:51:11,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.45454545454545) internal successors, (1259), 11 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,985 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,986 INFO L175 Difference]: Start difference. First operand has 167 places, 171 transitions, 2327 flow. Second operand 11 states and 1259 transitions. [2023-08-30 08:51:11,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 203 transitions, 3018 flow [2023-08-30 08:51:11,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 203 transitions, 2910 flow, removed 10 selfloop flow, removed 11 redundant places. [2023-08-30 08:51:11,999 INFO L231 Difference]: Finished difference. Result has 170 places, 182 transitions, 2590 flow [2023-08-30 08:51:11,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2229, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2590, PETRI_PLACES=170, PETRI_TRANSITIONS=182} [2023-08-30 08:51:11,999 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2023-08-30 08:51:11,999 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 182 transitions, 2590 flow [2023-08-30 08:51:12,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:12,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:12,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:12,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 08:51:12,000 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:12,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:12,001 INFO L85 PathProgramCache]: Analyzing trace with hash 496091890, now seen corresponding path program 2 times [2023-08-30 08:51:12,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:12,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907683544] [2023-08-30 08:51:12,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:12,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:12,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:12,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907683544] [2023-08-30 08:51:12,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907683544] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:12,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:12,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:12,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890141348] [2023-08-30 08:51:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:12,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:12,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:12,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:12,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:13,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:13,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 182 transitions, 2590 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:13,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:13,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:13,658 INFO L130 PetriNetUnfolder]: 290/856 cut-off events. [2023-08-30 08:51:13,658 INFO L131 PetriNetUnfolder]: For 6850/6850 co-relation queries the response was YES. [2023-08-30 08:51:13,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4721 conditions, 856 events. 290/856 cut-off events. For 6850/6850 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5645 event pairs, 101 based on Foata normal form. 10/866 useless extension candidates. Maximal degree in co-relation 4414. Up to 571 conditions per place. [2023-08-30 08:51:13,662 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 202 selfloop transitions, 42 changer transitions 0/245 dead transitions. [2023-08-30 08:51:13,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 245 transitions, 3751 flow [2023-08-30 08:51:13,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:13,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2023-08-30 08:51:13,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4278305963699222 [2023-08-30 08:51:13,678 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2023-08-30 08:51:13,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2023-08-30 08:51:13,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:13,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2023-08-30 08:51:13,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.23076923076923) internal successors, (1485), 13 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,682 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,682 INFO L175 Difference]: Start difference. First operand has 170 places, 182 transitions, 2590 flow. Second operand 13 states and 1485 transitions. [2023-08-30 08:51:13,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 245 transitions, 3751 flow [2023-08-30 08:51:13,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 245 transitions, 3703 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-30 08:51:13,700 INFO L231 Difference]: Finished difference. Result has 185 places, 206 transitions, 3047 flow [2023-08-30 08:51:13,700 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2548, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3047, PETRI_PLACES=185, PETRI_TRANSITIONS=206} [2023-08-30 08:51:13,700 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 147 predicate places. [2023-08-30 08:51:13,700 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 206 transitions, 3047 flow [2023-08-30 08:51:13,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,701 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:13,701 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:13,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 08:51:13,701 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:13,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:13,701 INFO L85 PathProgramCache]: Analyzing trace with hash -677747490, now seen corresponding path program 3 times [2023-08-30 08:51:13,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:13,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031488202] [2023-08-30 08:51:13,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:13,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:14,230 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 08:51:14,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:14,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031488202] [2023-08-30 08:51:14,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031488202] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:14,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:14,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:14,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117250572] [2023-08-30 08:51:14,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:14,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:14,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:14,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:14,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:14,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:14,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 206 transitions, 3047 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:14,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:14,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:14,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:15,460 INFO L130 PetriNetUnfolder]: 304/898 cut-off events. [2023-08-30 08:51:15,460 INFO L131 PetriNetUnfolder]: For 7511/7511 co-relation queries the response was YES. [2023-08-30 08:51:15,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5122 conditions, 898 events. 304/898 cut-off events. For 7511/7511 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6048 event pairs, 116 based on Foata normal form. 5/903 useless extension candidates. Maximal degree in co-relation 4811. Up to 530 conditions per place. [2023-08-30 08:51:15,465 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 184 selfloop transitions, 75 changer transitions 0/260 dead transitions. [2023-08-30 08:51:15,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 260 transitions, 3928 flow [2023-08-30 08:51:15,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:15,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:15,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1723 transitions. [2023-08-30 08:51:15,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43021223470661674 [2023-08-30 08:51:15,494 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1723 transitions. [2023-08-30 08:51:15,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1723 transitions. [2023-08-30 08:51:15,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:15,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1723 transitions. [2023-08-30 08:51:15,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 114.86666666666666) internal successors, (1723), 15 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,499 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,499 INFO L175 Difference]: Start difference. First operand has 185 places, 206 transitions, 3047 flow. Second operand 15 states and 1723 transitions. [2023-08-30 08:51:15,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 260 transitions, 3928 flow [2023-08-30 08:51:15,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 260 transitions, 3913 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-30 08:51:15,520 INFO L231 Difference]: Finished difference. Result has 201 places, 214 transitions, 3340 flow [2023-08-30 08:51:15,520 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3032, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3340, PETRI_PLACES=201, PETRI_TRANSITIONS=214} [2023-08-30 08:51:15,521 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 163 predicate places. [2023-08-30 08:51:15,521 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 214 transitions, 3340 flow [2023-08-30 08:51:15,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:15,521 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:15,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 08:51:15,522 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:15,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:15,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1041980266, now seen corresponding path program 4 times [2023-08-30 08:51:15,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:15,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225396726] [2023-08-30 08:51:15,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:15,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:16,126 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 08:51:16,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:16,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225396726] [2023-08-30 08:51:16,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225396726] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:16,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:16,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:16,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781963456] [2023-08-30 08:51:16,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:16,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:16,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:16,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:16,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:16,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:16,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 214 transitions, 3340 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:16,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:16,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:17,146 INFO L130 PetriNetUnfolder]: 324/974 cut-off events. [2023-08-30 08:51:17,146 INFO L131 PetriNetUnfolder]: For 9163/9163 co-relation queries the response was YES. [2023-08-30 08:51:17,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5674 conditions, 974 events. 324/974 cut-off events. For 9163/9163 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6747 event pairs, 110 based on Foata normal form. 5/979 useless extension candidates. Maximal degree in co-relation 5345. Up to 477 conditions per place. [2023-08-30 08:51:17,151 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 161 selfloop transitions, 91 changer transitions 0/253 dead transitions. [2023-08-30 08:51:17,151 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 253 transitions, 4114 flow [2023-08-30 08:51:17,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:17,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1499 transitions. [2023-08-30 08:51:17,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43186401613367903 [2023-08-30 08:51:17,156 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1499 transitions. [2023-08-30 08:51:17,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1499 transitions. [2023-08-30 08:51:17,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:17,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1499 transitions. [2023-08-30 08:51:17,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.3076923076923) internal successors, (1499), 13 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:17,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:17,160 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:17,160 INFO L175 Difference]: Start difference. First operand has 201 places, 214 transitions, 3340 flow. Second operand 13 states and 1499 transitions. [2023-08-30 08:51:17,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 253 transitions, 4114 flow [2023-08-30 08:51:17,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 253 transitions, 4029 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-30 08:51:17,183 INFO L231 Difference]: Finished difference. Result has 212 places, 218 transitions, 3511 flow [2023-08-30 08:51:17,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3255, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3511, PETRI_PLACES=212, PETRI_TRANSITIONS=218} [2023-08-30 08:51:17,184 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 174 predicate places. [2023-08-30 08:51:17,184 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 218 transitions, 3511 flow [2023-08-30 08:51:17,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:17,184 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:17,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:17,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 08:51:17,184 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:17,185 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:17,185 INFO L85 PathProgramCache]: Analyzing trace with hash -943668866, now seen corresponding path program 5 times [2023-08-30 08:51:17,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:17,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987167174] [2023-08-30 08:51:17,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:17,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:17,773 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 08:51:17,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:17,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987167174] [2023-08-30 08:51:17,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987167174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:17,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:17,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:17,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702390840] [2023-08-30 08:51:17,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:17,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:17,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:17,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:17,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:18,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:18,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 218 transitions, 3511 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:18,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:18,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:18,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:19,159 INFO L130 PetriNetUnfolder]: 328/999 cut-off events. [2023-08-30 08:51:19,159 INFO L131 PetriNetUnfolder]: For 9707/9707 co-relation queries the response was YES. [2023-08-30 08:51:19,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5914 conditions, 999 events. 328/999 cut-off events. For 9707/9707 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7034 event pairs, 147 based on Foata normal form. 5/1004 useless extension candidates. Maximal degree in co-relation 5601. Up to 668 conditions per place. [2023-08-30 08:51:19,164 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 172 selfloop transitions, 73 changer transitions 0/246 dead transitions. [2023-08-30 08:51:19,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 246 transitions, 4163 flow [2023-08-30 08:51:19,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:19,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1493 transitions. [2023-08-30 08:51:19,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43013540766349756 [2023-08-30 08:51:19,166 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1493 transitions. [2023-08-30 08:51:19,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1493 transitions. [2023-08-30 08:51:19,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:19,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1493 transitions. [2023-08-30 08:51:19,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.84615384615384) internal successors, (1493), 13 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,170 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,170 INFO L175 Difference]: Start difference. First operand has 212 places, 218 transitions, 3511 flow. Second operand 13 states and 1493 transitions. [2023-08-30 08:51:19,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 246 transitions, 4163 flow [2023-08-30 08:51:19,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 246 transitions, 3973 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-08-30 08:51:19,196 INFO L231 Difference]: Finished difference. Result has 221 places, 220 transitions, 3556 flow [2023-08-30 08:51:19,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3298, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3556, PETRI_PLACES=221, PETRI_TRANSITIONS=220} [2023-08-30 08:51:19,196 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 183 predicate places. [2023-08-30 08:51:19,197 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 220 transitions, 3556 flow [2023-08-30 08:51:19,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:19,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:19,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 08:51:19,197 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:19,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:19,198 INFO L85 PathProgramCache]: Analyzing trace with hash 671446131, now seen corresponding path program 2 times [2023-08-30 08:51:19,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:19,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37602414] [2023-08-30 08:51:19,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:19,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:19,462 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 08:51:19,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:19,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37602414] [2023-08-30 08:51:19,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37602414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:19,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:19,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:51:19,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405027984] [2023-08-30 08:51:19,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:19,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:51:19,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:19,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:51:19,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:51:19,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 267 [2023-08-30 08:51:19,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 220 transitions, 3556 flow. Second operand has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:19,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 267 [2023-08-30 08:51:19,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:19,638 INFO L130 PetriNetUnfolder]: 172/570 cut-off events. [2023-08-30 08:51:19,638 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-08-30 08:51:19,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3362 conditions, 570 events. 172/570 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3567 event pairs, 97 based on Foata normal form. 12/582 useless extension candidates. Maximal degree in co-relation 3303. Up to 461 conditions per place. [2023-08-30 08:51:19,641 INFO L137 encePairwiseOnDemand]: 261/267 looper letters, 137 selfloop transitions, 16 changer transitions 0/158 dead transitions. [2023-08-30 08:51:19,643 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 158 transitions, 2763 flow [2023-08-30 08:51:19,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:51:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:51:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 804 transitions. [2023-08-30 08:51:19,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50187265917603 [2023-08-30 08:51:19,647 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 804 transitions. [2023-08-30 08:51:19,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 804 transitions. [2023-08-30 08:51:19,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:19,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 804 transitions. [2023-08-30 08:51:19,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,649 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,649 INFO L175 Difference]: Start difference. First operand has 221 places, 220 transitions, 3556 flow. Second operand 6 states and 804 transitions. [2023-08-30 08:51:19,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 158 transitions, 2763 flow [2023-08-30 08:51:19,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 158 transitions, 2432 flow, removed 30 selfloop flow, removed 21 redundant places. [2023-08-30 08:51:19,669 INFO L231 Difference]: Finished difference. Result has 182 places, 157 transitions, 2160 flow [2023-08-30 08:51:19,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2113, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2160, PETRI_PLACES=182, PETRI_TRANSITIONS=157} [2023-08-30 08:51:19,669 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 144 predicate places. [2023-08-30 08:51:19,669 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 157 transitions, 2160 flow [2023-08-30 08:51:19,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:19,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:19,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 08:51:19,670 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 08:51:19,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:19,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1567890700, now seen corresponding path program 6 times [2023-08-30 08:51:19,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:19,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013032816] [2023-08-30 08:51:19,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:19,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:20,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:20,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:20,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013032816] [2023-08-30 08:51:20,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013032816] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:20,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:20,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:20,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006836334] [2023-08-30 08:51:20,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:20,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:20,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:20,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:20,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:20,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:20,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 157 transitions, 2160 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:20,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:20,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:20,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:21,525 INFO L130 PetriNetUnfolder]: 218/672 cut-off events. [2023-08-30 08:51:21,525 INFO L131 PetriNetUnfolder]: For 4738/4738 co-relation queries the response was YES. [2023-08-30 08:51:21,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3559 conditions, 672 events. 218/672 cut-off events. For 4738/4738 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4270 event pairs, 84 based on Foata normal form. 5/677 useless extension candidates. Maximal degree in co-relation 3508. Up to 260 conditions per place. [2023-08-30 08:51:21,528 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 147 selfloop transitions, 63 changer transitions 0/211 dead transitions. [2023-08-30 08:51:21,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 211 transitions, 2910 flow [2023-08-30 08:51:21,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:51:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:51:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1831 transitions. [2023-08-30 08:51:21,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4286048689138577 [2023-08-30 08:51:21,530 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1831 transitions. [2023-08-30 08:51:21,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1831 transitions. [2023-08-30 08:51:21,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:21,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1831 transitions. [2023-08-30 08:51:21,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 114.4375) internal successors, (1831), 16 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:21,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:21,535 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:21,535 INFO L175 Difference]: Start difference. First operand has 182 places, 157 transitions, 2160 flow. Second operand 16 states and 1831 transitions. [2023-08-30 08:51:21,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 211 transitions, 2910 flow [2023-08-30 08:51:21,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 211 transitions, 2852 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 08:51:21,549 INFO L231 Difference]: Finished difference. Result has 196 places, 166 transitions, 2396 flow [2023-08-30 08:51:21,550 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2105, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2396, PETRI_PLACES=196, PETRI_TRANSITIONS=166} [2023-08-30 08:51:21,550 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 158 predicate places. [2023-08-30 08:51:21,550 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 166 transitions, 2396 flow [2023-08-30 08:51:21,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:21,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:21,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:21,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 08:51:21,551 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 08:51:21,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1258633781, now seen corresponding path program 3 times [2023-08-30 08:51:21,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:21,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141566451] [2023-08-30 08:51:21,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:21,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:22,173 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 08:51:22,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:22,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141566451] [2023-08-30 08:51:22,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141566451] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:22,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:22,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:22,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354567463] [2023-08-30 08:51:22,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:22,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:22,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:22,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:22,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:22,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:51:22,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 166 transitions, 2396 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:22,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:51:22,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:23,263 INFO L130 PetriNetUnfolder]: 217/674 cut-off events. [2023-08-30 08:51:23,263 INFO L131 PetriNetUnfolder]: For 5030/5030 co-relation queries the response was YES. [2023-08-30 08:51:23,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3709 conditions, 674 events. 217/674 cut-off events. For 5030/5030 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4297 event pairs, 96 based on Foata normal form. 1/675 useless extension candidates. Maximal degree in co-relation 3655. Up to 358 conditions per place. [2023-08-30 08:51:23,266 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 113 selfloop transitions, 69 changer transitions 0/183 dead transitions. [2023-08-30 08:51:23,266 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 183 transitions, 2814 flow [2023-08-30 08:51:23,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:23,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1731 transitions. [2023-08-30 08:51:23,268 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4322097378277154 [2023-08-30 08:51:23,268 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1731 transitions. [2023-08-30 08:51:23,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1731 transitions. [2023-08-30 08:51:23,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:23,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1731 transitions. [2023-08-30 08:51:23,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 115.4) internal successors, (1731), 15 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:23,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:23,272 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:23,272 INFO L175 Difference]: Start difference. First operand has 196 places, 166 transitions, 2396 flow. Second operand 15 states and 1731 transitions. [2023-08-30 08:51:23,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 183 transitions, 2814 flow [2023-08-30 08:51:23,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 183 transitions, 2728 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:23,289 INFO L231 Difference]: Finished difference. Result has 205 places, 167 transitions, 2460 flow [2023-08-30 08:51:23,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2310, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2460, PETRI_PLACES=205, PETRI_TRANSITIONS=167} [2023-08-30 08:51:23,289 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 167 predicate places. [2023-08-30 08:51:23,289 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 167 transitions, 2460 flow [2023-08-30 08:51:23,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:23,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:23,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:23,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 08:51:23,290 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 08:51:23,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:23,290 INFO L85 PathProgramCache]: Analyzing trace with hash 298019574, now seen corresponding path program 7 times [2023-08-30 08:51:23,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:23,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804560615] [2023-08-30 08:51:23,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:23,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:23,942 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 08:51:23,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:23,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804560615] [2023-08-30 08:51:23,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804560615] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:23,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:23,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:23,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724003369] [2023-08-30 08:51:23,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:23,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:23,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:23,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:23,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:24,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:24,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 167 transitions, 2460 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:24,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:24,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:24,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:25,024 INFO L130 PetriNetUnfolder]: 214/661 cut-off events. [2023-08-30 08:51:25,024 INFO L131 PetriNetUnfolder]: For 5157/5157 co-relation queries the response was YES. [2023-08-30 08:51:25,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3715 conditions, 661 events. 214/661 cut-off events. For 5157/5157 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4165 event pairs, 70 based on Foata normal form. 5/666 useless extension candidates. Maximal degree in co-relation 3660. Up to 391 conditions per place. [2023-08-30 08:51:25,027 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 121 selfloop transitions, 61 changer transitions 0/183 dead transitions. [2023-08-30 08:51:25,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 183 transitions, 2899 flow [2023-08-30 08:51:25,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:51:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:51:25,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2023-08-30 08:51:25,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42662580864828054 [2023-08-30 08:51:25,029 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2023-08-30 08:51:25,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2023-08-30 08:51:25,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:25,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2023-08-30 08:51:25,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,032 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,032 INFO L175 Difference]: Start difference. First operand has 205 places, 167 transitions, 2460 flow. Second operand 11 states and 1253 transitions. [2023-08-30 08:51:25,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 183 transitions, 2899 flow [2023-08-30 08:51:25,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 183 transitions, 2772 flow, removed 1 selfloop flow, removed 11 redundant places. [2023-08-30 08:51:25,049 INFO L231 Difference]: Finished difference. Result has 205 places, 167 transitions, 2460 flow [2023-08-30 08:51:25,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2333, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2460, PETRI_PLACES=205, PETRI_TRANSITIONS=167} [2023-08-30 08:51:25,050 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 167 predicate places. [2023-08-30 08:51:25,050 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 167 transitions, 2460 flow [2023-08-30 08:51:25,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:25,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:25,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 08:51:25,051 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:25,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:25,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1220495744, now seen corresponding path program 8 times [2023-08-30 08:51:25,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:25,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090673225] [2023-08-30 08:51:25,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:25,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:25,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:25,569 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 08:51:25,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:25,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090673225] [2023-08-30 08:51:25,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090673225] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:25,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:25,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:25,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275370505] [2023-08-30 08:51:25,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:25,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:25,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:25,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:25,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:26,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:26,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 167 transitions, 2460 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:26,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:26,146 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:26,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:26,654 INFO L130 PetriNetUnfolder]: 221/682 cut-off events. [2023-08-30 08:51:26,655 INFO L131 PetriNetUnfolder]: For 5347/5347 co-relation queries the response was YES. [2023-08-30 08:51:26,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3845 conditions, 682 events. 221/682 cut-off events. For 5347/5347 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4356 event pairs, 77 based on Foata normal form. 5/687 useless extension candidates. Maximal degree in co-relation 3789. Up to 260 conditions per place. [2023-08-30 08:51:26,657 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 136 selfloop transitions, 63 changer transitions 0/200 dead transitions. [2023-08-30 08:51:26,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 200 transitions, 3021 flow [2023-08-30 08:51:26,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:26,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:26,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1707 transitions. [2023-08-30 08:51:26,659 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42621722846441945 [2023-08-30 08:51:26,659 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1707 transitions. [2023-08-30 08:51:26,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1707 transitions. [2023-08-30 08:51:26,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:26,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1707 transitions. [2023-08-30 08:51:26,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 113.8) internal successors, (1707), 15 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:26,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:26,663 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:26,663 INFO L175 Difference]: Start difference. First operand has 205 places, 167 transitions, 2460 flow. Second operand 15 states and 1707 transitions. [2023-08-30 08:51:26,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 200 transitions, 3021 flow [2023-08-30 08:51:26,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 200 transitions, 2914 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-30 08:51:26,680 INFO L231 Difference]: Finished difference. Result has 214 places, 167 transitions, 2516 flow [2023-08-30 08:51:26,681 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2328, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2516, PETRI_PLACES=214, PETRI_TRANSITIONS=167} [2023-08-30 08:51:26,681 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 176 predicate places. [2023-08-30 08:51:26,681 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 167 transitions, 2516 flow [2023-08-30 08:51:26,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:26,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:26,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:26,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-30 08:51:26,682 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:26,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:26,682 INFO L85 PathProgramCache]: Analyzing trace with hash 298019575, now seen corresponding path program 4 times [2023-08-30 08:51:26,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:26,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276667589] [2023-08-30 08:51:26,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:26,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:27,286 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 08:51:27,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:27,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276667589] [2023-08-30 08:51:27,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276667589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:27,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:27,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:27,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948152695] [2023-08-30 08:51:27,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:27,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:27,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:27,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:27,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:27,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:51:27,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 167 transitions, 2516 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:27,832 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:27,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:51:27,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:28,313 INFO L130 PetriNetUnfolder]: 218/679 cut-off events. [2023-08-30 08:51:28,313 INFO L131 PetriNetUnfolder]: For 5821/5821 co-relation queries the response was YES. [2023-08-30 08:51:28,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3918 conditions, 679 events. 218/679 cut-off events. For 5821/5821 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4347 event pairs, 56 based on Foata normal form. 3/682 useless extension candidates. Maximal degree in co-relation 3859. Up to 416 conditions per place. [2023-08-30 08:51:28,318 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 92 selfloop transitions, 83 changer transitions 0/176 dead transitions. [2023-08-30 08:51:28,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 176 transitions, 2905 flow [2023-08-30 08:51:28,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:28,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1604 transitions. [2023-08-30 08:51:28,320 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291064740502943 [2023-08-30 08:51:28,320 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1604 transitions. [2023-08-30 08:51:28,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1604 transitions. [2023-08-30 08:51:28,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:28,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1604 transitions. [2023-08-30 08:51:28,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.57142857142857) internal successors, (1604), 14 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:28,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:28,324 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:28,325 INFO L175 Difference]: Start difference. First operand has 214 places, 167 transitions, 2516 flow. Second operand 14 states and 1604 transitions. [2023-08-30 08:51:28,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 176 transitions, 2905 flow [2023-08-30 08:51:28,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 176 transitions, 2733 flow, removed 12 selfloop flow, removed 10 redundant places. [2023-08-30 08:51:28,344 INFO L231 Difference]: Finished difference. Result has 218 places, 168 transitions, 2534 flow [2023-08-30 08:51:28,345 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2344, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2534, PETRI_PLACES=218, PETRI_TRANSITIONS=168} [2023-08-30 08:51:28,345 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 180 predicate places. [2023-08-30 08:51:28,345 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 168 transitions, 2534 flow [2023-08-30 08:51:28,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:28,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:28,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:28,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-30 08:51:28,346 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:28,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:28,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1171192390, now seen corresponding path program 9 times [2023-08-30 08:51:28,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:28,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236077977] [2023-08-30 08:51:28,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:28,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:28,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:28,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236077977] [2023-08-30 08:51:28,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236077977] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:28,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:28,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:28,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440212643] [2023-08-30 08:51:28,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:28,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:28,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:28,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:29,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:29,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 168 transitions, 2534 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:29,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:29,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:29,982 INFO L130 PetriNetUnfolder]: 215/663 cut-off events. [2023-08-30 08:51:29,982 INFO L131 PetriNetUnfolder]: For 5362/5362 co-relation queries the response was YES. [2023-08-30 08:51:29,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3885 conditions, 663 events. 215/663 cut-off events. For 5362/5362 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4192 event pairs, 74 based on Foata normal form. 5/668 useless extension candidates. Maximal degree in co-relation 3827. Up to 334 conditions per place. [2023-08-30 08:51:29,986 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 126 selfloop transitions, 60 changer transitions 0/187 dead transitions. [2023-08-30 08:51:29,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 187 transitions, 2952 flow [2023-08-30 08:51:29,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:29,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:29,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1481 transitions. [2023-08-30 08:51:29,988 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42667819072313456 [2023-08-30 08:51:29,988 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1481 transitions. [2023-08-30 08:51:29,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1481 transitions. [2023-08-30 08:51:29,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:29,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1481 transitions. [2023-08-30 08:51:29,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.92307692307692) internal successors, (1481), 13 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,991 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,992 INFO L175 Difference]: Start difference. First operand has 218 places, 168 transitions, 2534 flow. Second operand 13 states and 1481 transitions. [2023-08-30 08:51:29,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 187 transitions, 2952 flow [2023-08-30 08:51:30,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 187 transitions, 2785 flow, removed 9 selfloop flow, removed 16 redundant places. [2023-08-30 08:51:30,010 INFO L231 Difference]: Finished difference. Result has 213 places, 165 transitions, 2467 flow [2023-08-30 08:51:30,011 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2318, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2467, PETRI_PLACES=213, PETRI_TRANSITIONS=165} [2023-08-30 08:51:30,011 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 175 predicate places. [2023-08-30 08:51:30,011 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 165 transitions, 2467 flow [2023-08-30 08:51:30,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:30,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:30,011 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:30,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-30 08:51:30,012 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:30,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:30,012 INFO L85 PathProgramCache]: Analyzing trace with hash -254526068, now seen corresponding path program 10 times [2023-08-30 08:51:30,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:30,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239203974] [2023-08-30 08:51:30,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:30,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:30,527 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 08:51:30,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:30,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239203974] [2023-08-30 08:51:30,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239203974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:30,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:30,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:30,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765344193] [2023-08-30 08:51:30,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:30,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:30,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:30,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:30,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:31,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:31,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 165 transitions, 2467 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:31,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:31,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:31,697 INFO L130 PetriNetUnfolder]: 229/707 cut-off events. [2023-08-30 08:51:31,697 INFO L131 PetriNetUnfolder]: For 5806/5806 co-relation queries the response was YES. [2023-08-30 08:51:31,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4108 conditions, 707 events. 229/707 cut-off events. For 5806/5806 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4565 event pairs, 107 based on Foata normal form. 5/712 useless extension candidates. Maximal degree in co-relation 4054. Up to 516 conditions per place. [2023-08-30 08:51:31,701 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 152 selfloop transitions, 35 changer transitions 0/188 dead transitions. [2023-08-30 08:51:31,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 188 transitions, 3019 flow [2023-08-30 08:51:31,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:51:31,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:51:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2023-08-30 08:51:31,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42662580864828054 [2023-08-30 08:51:31,703 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2023-08-30 08:51:31,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2023-08-30 08:51:31,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:31,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2023-08-30 08:51:31,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,705 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,705 INFO L175 Difference]: Start difference. First operand has 213 places, 165 transitions, 2467 flow. Second operand 11 states and 1253 transitions. [2023-08-30 08:51:31,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 188 transitions, 3019 flow [2023-08-30 08:51:31,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 188 transitions, 2879 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:31,722 INFO L231 Difference]: Finished difference. Result has 217 places, 170 transitions, 2526 flow [2023-08-30 08:51:31,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2332, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2526, PETRI_PLACES=217, PETRI_TRANSITIONS=170} [2023-08-30 08:51:31,723 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 179 predicate places. [2023-08-30 08:51:31,723 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 170 transitions, 2526 flow [2023-08-30 08:51:31,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:31,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:31,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-30 08:51:31,724 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:31,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1987799650, now seen corresponding path program 11 times [2023-08-30 08:51:31,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:31,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140866518] [2023-08-30 08:51:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:31,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:31,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:32,242 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 08:51:32,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:32,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140866518] [2023-08-30 08:51:32,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140866518] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:32,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:32,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:32,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121060502] [2023-08-30 08:51:32,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:32,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:32,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:32,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:32,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:32,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:32,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 170 transitions, 2526 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:32,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:32,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:32,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:33,409 INFO L130 PetriNetUnfolder]: 226/693 cut-off events. [2023-08-30 08:51:33,410 INFO L131 PetriNetUnfolder]: For 5601/5601 co-relation queries the response was YES. [2023-08-30 08:51:33,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4111 conditions, 693 events. 226/693 cut-off events. For 5601/5601 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4445 event pairs, 85 based on Foata normal form. 5/698 useless extension candidates. Maximal degree in co-relation 4055. Up to 282 conditions per place. [2023-08-30 08:51:33,413 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 129 selfloop transitions, 65 changer transitions 0/195 dead transitions. [2023-08-30 08:51:33,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 195 transitions, 3001 flow [2023-08-30 08:51:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:33,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:33,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1594 transitions. [2023-08-30 08:51:33,414 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42643124665596577 [2023-08-30 08:51:33,414 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1594 transitions. [2023-08-30 08:51:33,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1594 transitions. [2023-08-30 08:51:33,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:33,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1594 transitions. [2023-08-30 08:51:33,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 113.85714285714286) internal successors, (1594), 14 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:33,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:33,418 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:33,418 INFO L175 Difference]: Start difference. First operand has 217 places, 170 transitions, 2526 flow. Second operand 14 states and 1594 transitions. [2023-08-30 08:51:33,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 195 transitions, 3001 flow [2023-08-30 08:51:33,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 195 transitions, 2939 flow, removed 11 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:33,434 INFO L231 Difference]: Finished difference. Result has 225 places, 168 transitions, 2573 flow [2023-08-30 08:51:33,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2440, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2573, PETRI_PLACES=225, PETRI_TRANSITIONS=168} [2023-08-30 08:51:33,435 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 187 predicate places. [2023-08-30 08:51:33,435 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 168 transitions, 2573 flow [2023-08-30 08:51:33,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:33,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:33,435 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:33,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-30 08:51:33,436 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:33,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:33,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1139795522, now seen corresponding path program 12 times [2023-08-30 08:51:33,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:33,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826726522] [2023-08-30 08:51:33,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:33,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:33,971 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 08:51:33,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:33,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826726522] [2023-08-30 08:51:33,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826726522] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:33,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:33,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:33,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052976129] [2023-08-30 08:51:33,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:33,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:33,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:33,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:33,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:34,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:34,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 168 transitions, 2573 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:34,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:34,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:34,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:35,114 INFO L130 PetriNetUnfolder]: 235/724 cut-off events. [2023-08-30 08:51:35,114 INFO L131 PetriNetUnfolder]: For 6436/6436 co-relation queries the response was YES. [2023-08-30 08:51:35,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4337 conditions, 724 events. 235/724 cut-off events. For 6436/6436 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4704 event pairs, 46 based on Foata normal form. 5/729 useless extension candidates. Maximal degree in co-relation 4282. Up to 249 conditions per place. [2023-08-30 08:51:35,117 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 117 selfloop transitions, 82 changer transitions 0/200 dead transitions. [2023-08-30 08:51:35,117 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 200 transitions, 3132 flow [2023-08-30 08:51:35,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:35,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1592 transitions. [2023-08-30 08:51:35,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42589620117710003 [2023-08-30 08:51:35,119 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1592 transitions. [2023-08-30 08:51:35,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1592 transitions. [2023-08-30 08:51:35,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:35,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1592 transitions. [2023-08-30 08:51:35,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 113.71428571428571) internal successors, (1592), 14 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:35,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:35,122 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:35,122 INFO L175 Difference]: Start difference. First operand has 225 places, 168 transitions, 2573 flow. Second operand 14 states and 1592 transitions. [2023-08-30 08:51:35,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 200 transitions, 3132 flow [2023-08-30 08:51:35,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 200 transitions, 3030 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-30 08:51:35,139 INFO L231 Difference]: Finished difference. Result has 233 places, 172 transitions, 2712 flow [2023-08-30 08:51:35,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2471, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2712, PETRI_PLACES=233, PETRI_TRANSITIONS=172} [2023-08-30 08:51:35,140 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 195 predicate places. [2023-08-30 08:51:35,140 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 172 transitions, 2712 flow [2023-08-30 08:51:35,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:35,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:35,141 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:35,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-30 08:51:35,141 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:35,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:35,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1906863488, now seen corresponding path program 13 times [2023-08-30 08:51:35,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:35,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846717013] [2023-08-30 08:51:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:35,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:35,690 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 08:51:35,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:35,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846717013] [2023-08-30 08:51:35,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846717013] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:35,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:35,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:35,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589569320] [2023-08-30 08:51:35,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:35,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:35,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:35,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:35,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:36,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:36,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 172 transitions, 2712 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:36,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:36,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:36,897 INFO L130 PetriNetUnfolder]: 249/767 cut-off events. [2023-08-30 08:51:36,897 INFO L131 PetriNetUnfolder]: For 7394/7394 co-relation queries the response was YES. [2023-08-30 08:51:36,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4747 conditions, 767 events. 249/767 cut-off events. For 7394/7394 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5106 event pairs, 114 based on Foata normal form. 5/772 useless extension candidates. Maximal degree in co-relation 4689. Up to 424 conditions per place. [2023-08-30 08:51:36,901 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 178 selfloop transitions, 39 changer transitions 0/218 dead transitions. [2023-08-30 08:51:36,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 218 transitions, 3436 flow [2023-08-30 08:51:36,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:36,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1715 transitions. [2023-08-30 08:51:36,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4282147315855181 [2023-08-30 08:51:36,903 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1715 transitions. [2023-08-30 08:51:36,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1715 transitions. [2023-08-30 08:51:36,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:36,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1715 transitions. [2023-08-30 08:51:36,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 114.33333333333333) internal successors, (1715), 15 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,907 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,907 INFO L175 Difference]: Start difference. First operand has 233 places, 172 transitions, 2712 flow. Second operand 15 states and 1715 transitions. [2023-08-30 08:51:36,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 218 transitions, 3436 flow [2023-08-30 08:51:36,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 218 transitions, 3283 flow, removed 7 selfloop flow, removed 12 redundant places. [2023-08-30 08:51:36,928 INFO L231 Difference]: Finished difference. Result has 238 places, 176 transitions, 2739 flow [2023-08-30 08:51:36,928 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2563, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2739, PETRI_PLACES=238, PETRI_TRANSITIONS=176} [2023-08-30 08:51:36,929 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 200 predicate places. [2023-08-30 08:51:36,929 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 176 transitions, 2739 flow [2023-08-30 08:51:36,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,929 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:36,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:36,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-30 08:51:36,929 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:36,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:36,930 INFO L85 PathProgramCache]: Analyzing trace with hash -200584408, now seen corresponding path program 14 times [2023-08-30 08:51:36,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:36,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664568277] [2023-08-30 08:51:36,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:36,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:37,477 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 08:51:37,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:37,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664568277] [2023-08-30 08:51:37,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664568277] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:37,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:37,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:37,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669628586] [2023-08-30 08:51:37,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:37,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:37,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:37,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:37,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:38,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:38,095 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 176 transitions, 2739 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,095 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:38,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:38,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:38,678 INFO L130 PetriNetUnfolder]: 253/783 cut-off events. [2023-08-30 08:51:38,679 INFO L131 PetriNetUnfolder]: For 7779/7779 co-relation queries the response was YES. [2023-08-30 08:51:38,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4831 conditions, 783 events. 253/783 cut-off events. For 7779/7779 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5262 event pairs, 93 based on Foata normal form. 5/788 useless extension candidates. Maximal degree in co-relation 4776. Up to 424 conditions per place. [2023-08-30 08:51:38,684 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 165 selfloop transitions, 46 changer transitions 0/212 dead transitions. [2023-08-30 08:51:38,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 212 transitions, 3324 flow [2023-08-30 08:51:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:38,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:38,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1714 transitions. [2023-08-30 08:51:38,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4279650436953808 [2023-08-30 08:51:38,685 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1714 transitions. [2023-08-30 08:51:38,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1714 transitions. [2023-08-30 08:51:38,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:38,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1714 transitions. [2023-08-30 08:51:38,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 114.26666666666667) internal successors, (1714), 15 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,689 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,693 INFO L175 Difference]: Start difference. First operand has 238 places, 176 transitions, 2739 flow. Second operand 15 states and 1714 transitions. [2023-08-30 08:51:38,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 212 transitions, 3324 flow [2023-08-30 08:51:38,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 212 transitions, 3202 flow, removed 17 selfloop flow, removed 10 redundant places. [2023-08-30 08:51:38,714 INFO L231 Difference]: Finished difference. Result has 246 places, 177 transitions, 2780 flow [2023-08-30 08:51:38,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2596, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2780, PETRI_PLACES=246, PETRI_TRANSITIONS=177} [2023-08-30 08:51:38,714 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 208 predicate places. [2023-08-30 08:51:38,714 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 177 transitions, 2780 flow [2023-08-30 08:51:38,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:38,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:38,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-30 08:51:38,715 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:38,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:38,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1058466093, now seen corresponding path program 5 times [2023-08-30 08:51:38,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:38,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57146275] [2023-08-30 08:51:38,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:38,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:39,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:39,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:39,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57146275] [2023-08-30 08:51:39,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57146275] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:39,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:39,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:39,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688342786] [2023-08-30 08:51:39,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:39,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:39,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:39,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:39,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:40,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:51:40,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 177 transitions, 2780 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:40,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:51:40,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:40,709 INFO L130 PetriNetUnfolder]: 252/781 cut-off events. [2023-08-30 08:51:40,709 INFO L131 PetriNetUnfolder]: For 7855/7855 co-relation queries the response was YES. [2023-08-30 08:51:40,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4861 conditions, 781 events. 252/781 cut-off events. For 7855/7855 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5246 event pairs, 57 based on Foata normal form. 1/782 useless extension candidates. Maximal degree in co-relation 4805. Up to 403 conditions per place. [2023-08-30 08:51:40,713 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 75 selfloop transitions, 116 changer transitions 0/192 dead transitions. [2023-08-30 08:51:40,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 192 transitions, 3276 flow [2023-08-30 08:51:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-30 08:51:40,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-30 08:51:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2278 transitions. [2023-08-30 08:51:40,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4265917602996255 [2023-08-30 08:51:40,715 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2278 transitions. [2023-08-30 08:51:40,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2278 transitions. [2023-08-30 08:51:40,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:40,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2278 transitions. [2023-08-30 08:51:40,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 113.9) internal successors, (2278), 20 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,719 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,719 INFO L175 Difference]: Start difference. First operand has 246 places, 177 transitions, 2780 flow. Second operand 20 states and 2278 transitions. [2023-08-30 08:51:40,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 192 transitions, 3276 flow [2023-08-30 08:51:40,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 192 transitions, 3169 flow, removed 13 selfloop flow, removed 12 redundant places. [2023-08-30 08:51:40,739 INFO L231 Difference]: Finished difference. Result has 255 places, 180 transitions, 3031 flow [2023-08-30 08:51:40,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2674, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3031, PETRI_PLACES=255, PETRI_TRANSITIONS=180} [2023-08-30 08:51:40,739 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 217 predicate places. [2023-08-30 08:51:40,740 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 180 transitions, 3031 flow [2023-08-30 08:51:40,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:40,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:40,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-30 08:51:40,740 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:40,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:40,741 INFO L85 PathProgramCache]: Analyzing trace with hash 719886573, now seen corresponding path program 6 times [2023-08-30 08:51:40,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:40,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458381355] [2023-08-30 08:51:40,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:40,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:40,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:41,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:41,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:41,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458381355] [2023-08-30 08:51:41,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458381355] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:41,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:41,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:41,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421107385] [2023-08-30 08:51:41,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:41,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:41,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:41,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:41,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:41,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:51:41,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 180 transitions, 3031 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:41,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:41,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:51:41,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:42,185 INFO L130 PetriNetUnfolder]: 251/778 cut-off events. [2023-08-30 08:51:42,186 INFO L131 PetriNetUnfolder]: For 7964/7964 co-relation queries the response was YES. [2023-08-30 08:51:42,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5035 conditions, 778 events. 251/778 cut-off events. For 7964/7964 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5214 event pairs, 52 based on Foata normal form. 1/779 useless extension candidates. Maximal degree in co-relation 4983. Up to 457 conditions per place. [2023-08-30 08:51:42,189 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 89 selfloop transitions, 98 changer transitions 0/188 dead transitions. [2023-08-30 08:51:42,189 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 188 transitions, 3439 flow [2023-08-30 08:51:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:42,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1713 transitions. [2023-08-30 08:51:42,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42771535580524345 [2023-08-30 08:51:42,191 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1713 transitions. [2023-08-30 08:51:42,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1713 transitions. [2023-08-30 08:51:42,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:42,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1713 transitions. [2023-08-30 08:51:42,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 114.2) internal successors, (1713), 15 states have internal predecessors, (1713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,194 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,194 INFO L175 Difference]: Start difference. First operand has 255 places, 180 transitions, 3031 flow. Second operand 15 states and 1713 transitions. [2023-08-30 08:51:42,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 188 transitions, 3439 flow [2023-08-30 08:51:42,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 188 transitions, 3307 flow, removed 9 selfloop flow, removed 14 redundant places. [2023-08-30 08:51:42,215 INFO L231 Difference]: Finished difference. Result has 256 places, 181 transitions, 3120 flow [2023-08-30 08:51:42,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2903, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3120, PETRI_PLACES=256, PETRI_TRANSITIONS=181} [2023-08-30 08:51:42,216 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 218 predicate places. [2023-08-30 08:51:42,216 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 181 transitions, 3120 flow [2023-08-30 08:51:42,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:42,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:42,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-30 08:51:42,216 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:42,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:42,217 INFO L85 PathProgramCache]: Analyzing trace with hash -539163928, now seen corresponding path program 15 times [2023-08-30 08:51:42,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:42,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722901913] [2023-08-30 08:51:42,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:42,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:42,745 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 08:51:42,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:42,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722901913] [2023-08-30 08:51:42,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722901913] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:42,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:42,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:42,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353550011] [2023-08-30 08:51:42,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:42,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:42,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:42,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:42,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:43,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:43,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 181 transitions, 3120 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:43,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:43,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:43,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:43,918 INFO L130 PetriNetUnfolder]: 248/765 cut-off events. [2023-08-30 08:51:43,918 INFO L131 PetriNetUnfolder]: For 8485/8485 co-relation queries the response was YES. [2023-08-30 08:51:43,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5052 conditions, 765 events. 248/765 cut-off events. For 8485/8485 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5097 event pairs, 87 based on Foata normal form. 5/770 useless extension candidates. Maximal degree in co-relation 4999. Up to 424 conditions per place. [2023-08-30 08:51:43,922 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 153 selfloop transitions, 44 changer transitions 0/198 dead transitions. [2023-08-30 08:51:43,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 198 transitions, 3535 flow [2023-08-30 08:51:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:43,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:43,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1478 transitions. [2023-08-30 08:51:43,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4258138864880438 [2023-08-30 08:51:43,924 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1478 transitions. [2023-08-30 08:51:43,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1478 transitions. [2023-08-30 08:51:43,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:43,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1478 transitions. [2023-08-30 08:51:43,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.6923076923077) internal successors, (1478), 13 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:43,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:43,927 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:43,927 INFO L175 Difference]: Start difference. First operand has 256 places, 181 transitions, 3120 flow. Second operand 13 states and 1478 transitions. [2023-08-30 08:51:43,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 198 transitions, 3535 flow [2023-08-30 08:51:43,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 198 transitions, 3324 flow, removed 2 selfloop flow, removed 19 redundant places. [2023-08-30 08:51:43,947 INFO L231 Difference]: Finished difference. Result has 248 places, 177 transitions, 2936 flow [2023-08-30 08:51:43,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2848, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2936, PETRI_PLACES=248, PETRI_TRANSITIONS=177} [2023-08-30 08:51:43,947 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 210 predicate places. [2023-08-30 08:51:43,948 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 177 transitions, 2936 flow [2023-08-30 08:51:43,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:43,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:43,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:43,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-30 08:51:43,948 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:43,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:43,949 INFO L85 PathProgramCache]: Analyzing trace with hash 719886572, now seen corresponding path program 16 times [2023-08-30 08:51:43,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:43,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679844002] [2023-08-30 08:51:43,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:43,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:44,461 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 08:51:44,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:44,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679844002] [2023-08-30 08:51:44,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679844002] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:44,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:44,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:44,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811082789] [2023-08-30 08:51:44,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:44,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:44,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:44,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:44,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:45,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 08:51:45,034 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 177 transitions, 2936 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:45,034 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:45,034 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 08:51:45,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:45,411 INFO L130 PetriNetUnfolder]: 245/753 cut-off events. [2023-08-30 08:51:45,412 INFO L131 PetriNetUnfolder]: For 8212/8212 co-relation queries the response was YES. [2023-08-30 08:51:45,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4908 conditions, 753 events. 245/753 cut-off events. For 8212/8212 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4979 event pairs, 34 based on Foata normal form. 5/758 useless extension candidates. Maximal degree in co-relation 4861. Up to 320 conditions per place. [2023-08-30 08:51:45,416 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 104 selfloop transitions, 83 changer transitions 0/188 dead transitions. [2023-08-30 08:51:45,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 188 transitions, 3316 flow [2023-08-30 08:51:45,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:51:45,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:51:45,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1359 transitions. [2023-08-30 08:51:45,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4241573033707865 [2023-08-30 08:51:45,418 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1359 transitions. [2023-08-30 08:51:45,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1359 transitions. [2023-08-30 08:51:45,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:45,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1359 transitions. [2023-08-30 08:51:45,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 113.25) internal successors, (1359), 12 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:45,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:45,421 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:45,421 INFO L175 Difference]: Start difference. First operand has 248 places, 177 transitions, 2936 flow. Second operand 12 states and 1359 transitions. [2023-08-30 08:51:45,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 188 transitions, 3316 flow [2023-08-30 08:51:45,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 188 transitions, 3213 flow, removed 3 selfloop flow, removed 14 redundant places. [2023-08-30 08:51:45,446 INFO L231 Difference]: Finished difference. Result has 242 places, 173 transitions, 2950 flow [2023-08-30 08:51:45,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2784, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2950, PETRI_PLACES=242, PETRI_TRANSITIONS=173} [2023-08-30 08:51:45,446 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 204 predicate places. [2023-08-30 08:51:45,447 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 173 transitions, 2950 flow [2023-08-30 08:51:45,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:45,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:45,447 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:45,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-30 08:51:45,447 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:45,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:45,448 INFO L85 PathProgramCache]: Analyzing trace with hash 819338797, now seen corresponding path program 1 times [2023-08-30 08:51:45,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:45,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848618431] [2023-08-30 08:51:45,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:45,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:46,223 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 08:51:46,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:46,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848618431] [2023-08-30 08:51:46,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848618431] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:46,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:46,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:51:46,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730565897] [2023-08-30 08:51:46,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:46,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:51:46,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:46,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:51:46,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:51:47,023 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:51:47,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 173 transitions, 2950 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:47,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:51:47,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:47,607 INFO L130 PetriNetUnfolder]: 244/751 cut-off events. [2023-08-30 08:51:47,608 INFO L131 PetriNetUnfolder]: For 8030/8030 co-relation queries the response was YES. [2023-08-30 08:51:47,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4937 conditions, 751 events. 244/751 cut-off events. For 8030/8030 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4984 event pairs, 138 based on Foata normal form. 1/752 useless extension candidates. Maximal degree in co-relation 4896. Up to 374 conditions per place. [2023-08-30 08:51:47,614 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 134 selfloop transitions, 59 changer transitions 0/194 dead transitions. [2023-08-30 08:51:47,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 194 transitions, 3449 flow [2023-08-30 08:51:47,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:47,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:47,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1500 transitions. [2023-08-30 08:51:47,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43215211754537597 [2023-08-30 08:51:47,618 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1500 transitions. [2023-08-30 08:51:47,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1500 transitions. [2023-08-30 08:51:47,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:47,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1500 transitions. [2023-08-30 08:51:47,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.38461538461539) internal successors, (1500), 13 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,621 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,621 INFO L175 Difference]: Start difference. First operand has 242 places, 173 transitions, 2950 flow. Second operand 13 states and 1500 transitions. [2023-08-30 08:51:47,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 194 transitions, 3449 flow [2023-08-30 08:51:47,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 194 transitions, 3309 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-30 08:51:47,639 INFO L231 Difference]: Finished difference. Result has 248 places, 176 transitions, 2963 flow [2023-08-30 08:51:47,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2810, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2963, PETRI_PLACES=248, PETRI_TRANSITIONS=176} [2023-08-30 08:51:47,640 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 210 predicate places. [2023-08-30 08:51:47,640 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 176 transitions, 2963 flow [2023-08-30 08:51:47,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:47,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:47,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-30 08:51:47,640 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:47,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:47,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1805488047, now seen corresponding path program 2 times [2023-08-30 08:51:47,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:47,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155716045] [2023-08-30 08:51:47,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:47,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:48,653 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 08:51:48,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:48,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155716045] [2023-08-30 08:51:48,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155716045] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:48,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:48,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:51:48,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588621152] [2023-08-30 08:51:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:48,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:51:48,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:48,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:51:48,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:51:49,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 267 [2023-08-30 08:51:49,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 176 transitions, 2963 flow. Second operand has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:49,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:49,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 267 [2023-08-30 08:51:49,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:49,780 INFO L130 PetriNetUnfolder]: 243/754 cut-off events. [2023-08-30 08:51:49,780 INFO L131 PetriNetUnfolder]: For 8077/8077 co-relation queries the response was YES. [2023-08-30 08:51:49,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5080 conditions, 754 events. 243/754 cut-off events. For 8077/8077 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5014 event pairs, 158 based on Foata normal form. 1/755 useless extension candidates. Maximal degree in co-relation 5037. Up to 649 conditions per place. [2023-08-30 08:51:49,783 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 166 selfloop transitions, 28 changer transitions 0/195 dead transitions. [2023-08-30 08:51:49,783 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 195 transitions, 3534 flow [2023-08-30 08:51:49,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:51:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:51:49,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1368 transitions. [2023-08-30 08:51:49,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42696629213483145 [2023-08-30 08:51:49,790 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1368 transitions. [2023-08-30 08:51:49,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1368 transitions. [2023-08-30 08:51:49,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:49,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1368 transitions. [2023-08-30 08:51:49,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.0) internal successors, (1368), 12 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:49,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:49,793 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:49,793 INFO L175 Difference]: Start difference. First operand has 248 places, 176 transitions, 2963 flow. Second operand 12 states and 1368 transitions. [2023-08-30 08:51:49,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 195 transitions, 3534 flow [2023-08-30 08:51:49,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 195 transitions, 3425 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:49,810 INFO L231 Difference]: Finished difference. Result has 253 places, 182 transitions, 3031 flow [2023-08-30 08:51:49,810 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2864, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3031, PETRI_PLACES=253, PETRI_TRANSITIONS=182} [2023-08-30 08:51:49,810 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 215 predicate places. [2023-08-30 08:51:49,810 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 182 transitions, 3031 flow [2023-08-30 08:51:49,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:49,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:49,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:49,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-30 08:51:49,811 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:49,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:49,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1074127285, now seen corresponding path program 3 times [2023-08-30 08:51:49,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:49,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820897426] [2023-08-30 08:51:49,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:49,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:50,458 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 08:51:50,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:50,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820897426] [2023-08-30 08:51:50,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820897426] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:50,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:50,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:51:50,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200067588] [2023-08-30 08:51:50,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:50,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:51:50,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:50,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:51:50,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:51:51,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 267 [2023-08-30 08:51:51,165 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 182 transitions, 3031 flow. Second operand has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:51,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:51,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 267 [2023-08-30 08:51:51,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:51,694 INFO L130 PetriNetUnfolder]: 242/752 cut-off events. [2023-08-30 08:51:51,694 INFO L131 PetriNetUnfolder]: For 8158/8158 co-relation queries the response was YES. [2023-08-30 08:51:51,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5093 conditions, 752 events. 242/752 cut-off events. For 8158/8158 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5001 event pairs, 152 based on Foata normal form. 1/753 useless extension candidates. Maximal degree in co-relation 5047. Up to 602 conditions per place. [2023-08-30 08:51:51,698 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 158 selfloop transitions, 38 changer transitions 0/197 dead transitions. [2023-08-30 08:51:51,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 197 transitions, 3532 flow [2023-08-30 08:51:51,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:51,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:51,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1483 transitions. [2023-08-30 08:51:51,700 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4272543935465284 [2023-08-30 08:51:51,700 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1483 transitions. [2023-08-30 08:51:51,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1483 transitions. [2023-08-30 08:51:51,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:51,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1483 transitions. [2023-08-30 08:51:51,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.07692307692308) internal successors, (1483), 13 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:51,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:51,703 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:51,703 INFO L175 Difference]: Start difference. First operand has 253 places, 182 transitions, 3031 flow. Second operand 13 states and 1483 transitions. [2023-08-30 08:51:51,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 197 transitions, 3532 flow [2023-08-30 08:51:51,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 197 transitions, 3495 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:51,722 INFO L231 Difference]: Finished difference. Result has 261 places, 185 transitions, 3121 flow [2023-08-30 08:51:51,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2994, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3121, PETRI_PLACES=261, PETRI_TRANSITIONS=185} [2023-08-30 08:51:51,723 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 223 predicate places. [2023-08-30 08:51:51,723 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 185 transitions, 3121 flow [2023-08-30 08:51:51,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:51,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:51,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:51,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-08-30 08:51:51,724 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:51,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:51,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2113901309, now seen corresponding path program 4 times [2023-08-30 08:51:51,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:51,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929556216] [2023-08-30 08:51:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:51,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:52,412 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 08:51:52,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:52,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929556216] [2023-08-30 08:51:52,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929556216] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:52,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:52,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:51:52,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293001160] [2023-08-30 08:51:52,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:52,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:51:52,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:52,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:51:52,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:51:53,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 267 [2023-08-30 08:51:53,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 185 transitions, 3121 flow. Second operand has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:53,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:53,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 267 [2023-08-30 08:51:53,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:53,572 INFO L130 PetriNetUnfolder]: 241/750 cut-off events. [2023-08-30 08:51:53,572 INFO L131 PetriNetUnfolder]: For 8469/8469 co-relation queries the response was YES. [2023-08-30 08:51:53,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5164 conditions, 750 events. 241/750 cut-off events. For 8469/8469 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4982 event pairs, 156 based on Foata normal form. 1/751 useless extension candidates. Maximal degree in co-relation 5115. Up to 594 conditions per place. [2023-08-30 08:51:53,576 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 144 selfloop transitions, 54 changer transitions 0/199 dead transitions. [2023-08-30 08:51:53,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 199 transitions, 3629 flow [2023-08-30 08:51:53,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:51:53,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:51:53,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1260 transitions. [2023-08-30 08:51:53,577 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4290091930541369 [2023-08-30 08:51:53,577 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1260 transitions. [2023-08-30 08:51:53,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1260 transitions. [2023-08-30 08:51:53,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:53,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1260 transitions. [2023-08-30 08:51:53,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.54545454545455) internal successors, (1260), 11 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:53,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:53,580 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:53,580 INFO L175 Difference]: Start difference. First operand has 261 places, 185 transitions, 3121 flow. Second operand 11 states and 1260 transitions. [2023-08-30 08:51:53,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 199 transitions, 3629 flow [2023-08-30 08:51:53,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 199 transitions, 3587 flow, removed 7 selfloop flow, removed 5 redundant places. [2023-08-30 08:51:53,600 INFO L231 Difference]: Finished difference. Result has 268 places, 188 transitions, 3240 flow [2023-08-30 08:51:53,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3083, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3240, PETRI_PLACES=268, PETRI_TRANSITIONS=188} [2023-08-30 08:51:53,601 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 230 predicate places. [2023-08-30 08:51:53,601 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 188 transitions, 3240 flow [2023-08-30 08:51:53,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:53,601 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:53,601 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:53,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-08-30 08:51:53,602 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:53,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1309089479, now seen corresponding path program 5 times [2023-08-30 08:51:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:53,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439637425] [2023-08-30 08:51:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:54,316 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 08:51:54,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:54,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439637425] [2023-08-30 08:51:54,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439637425] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:54,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:54,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:51:54,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719284791] [2023-08-30 08:51:54,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:54,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:51:54,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:54,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:51:54,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:51:55,044 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:51:55,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 188 transitions, 3240 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:55,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:55,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:51:55,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:55,768 INFO L130 PetriNetUnfolder]: 240/748 cut-off events. [2023-08-30 08:51:55,768 INFO L131 PetriNetUnfolder]: For 8688/8688 co-relation queries the response was YES. [2023-08-30 08:51:55,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5208 conditions, 748 events. 240/748 cut-off events. For 8688/8688 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4977 event pairs, 146 based on Foata normal form. 1/749 useless extension candidates. Maximal degree in co-relation 5156. Up to 471 conditions per place. [2023-08-30 08:51:55,774 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 144 selfloop transitions, 62 changer transitions 0/207 dead transitions. [2023-08-30 08:51:55,774 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 207 transitions, 3765 flow [2023-08-30 08:51:55,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:55,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1504 transitions. [2023-08-30 08:51:55,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4333045231921636 [2023-08-30 08:51:55,777 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1504 transitions. [2023-08-30 08:51:55,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1504 transitions. [2023-08-30 08:51:55,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:55,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1504 transitions. [2023-08-30 08:51:55,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.6923076923077) internal successors, (1504), 13 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:55,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:55,781 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:55,781 INFO L175 Difference]: Start difference. First operand has 268 places, 188 transitions, 3240 flow. Second operand 13 states and 1504 transitions. [2023-08-30 08:51:55,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 207 transitions, 3765 flow [2023-08-30 08:51:55,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 207 transitions, 3688 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:55,813 INFO L231 Difference]: Finished difference. Result has 276 places, 191 transitions, 3355 flow [2023-08-30 08:51:55,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3163, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3355, PETRI_PLACES=276, PETRI_TRANSITIONS=191} [2023-08-30 08:51:55,814 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 238 predicate places. [2023-08-30 08:51:55,814 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 191 transitions, 3355 flow [2023-08-30 08:51:55,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:55,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:55,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:55,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-08-30 08:51:55,815 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:55,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:55,816 INFO L85 PathProgramCache]: Analyzing trace with hash -360007055, now seen corresponding path program 6 times [2023-08-30 08:51:55,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:55,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391156033] [2023-08-30 08:51:55,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:55,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:56,876 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 08:51:56,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:56,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391156033] [2023-08-30 08:51:56,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391156033] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:56,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:56,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:51:56,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049369007] [2023-08-30 08:51:56,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:56,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:51:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:56,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:51:56,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:51:57,608 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:51:57,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 191 transitions, 3355 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:57,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:57,610 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:51:57,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:58,189 INFO L130 PetriNetUnfolder]: 238/744 cut-off events. [2023-08-30 08:51:58,190 INFO L131 PetriNetUnfolder]: For 9241/9241 co-relation queries the response was YES. [2023-08-30 08:51:58,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5296 conditions, 744 events. 238/744 cut-off events. For 9241/9241 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4944 event pairs, 127 based on Foata normal form. 2/746 useless extension candidates. Maximal degree in co-relation 5241. Up to 483 conditions per place. [2023-08-30 08:51:58,195 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 159 selfloop transitions, 51 changer transitions 0/211 dead transitions. [2023-08-30 08:51:58,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 211 transitions, 3928 flow [2023-08-30 08:51:58,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 08:51:58,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 08:51:58,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1950 transitions. [2023-08-30 08:51:58,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42961004626569727 [2023-08-30 08:51:58,198 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1950 transitions. [2023-08-30 08:51:58,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1950 transitions. [2023-08-30 08:51:58,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:58,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1950 transitions. [2023-08-30 08:51:58,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 114.70588235294117) internal successors, (1950), 17 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:58,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:58,203 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:58,203 INFO L175 Difference]: Start difference. First operand has 276 places, 191 transitions, 3355 flow. Second operand 17 states and 1950 transitions. [2023-08-30 08:51:58,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 211 transitions, 3928 flow [2023-08-30 08:51:58,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 211 transitions, 3796 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:58,238 INFO L231 Difference]: Finished difference. Result has 285 places, 195 transitions, 3424 flow [2023-08-30 08:51:58,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3227, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3424, PETRI_PLACES=285, PETRI_TRANSITIONS=195} [2023-08-30 08:51:58,238 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 247 predicate places. [2023-08-30 08:51:58,238 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 195 transitions, 3424 flow [2023-08-30 08:51:58,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:58,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:58,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:58,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-08-30 08:51:58,239 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:58,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:58,240 INFO L85 PathProgramCache]: Analyzing trace with hash 465788613, now seen corresponding path program 7 times [2023-08-30 08:51:58,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:58,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77139244] [2023-08-30 08:51:58,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:58,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:59,158 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 08:51:59,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:59,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77139244] [2023-08-30 08:51:59,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77139244] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:59,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:59,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:51:59,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063874861] [2023-08-30 08:51:59,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:59,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:51:59,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:59,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:51:59,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:51:59,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:51:59,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 195 transitions, 3424 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:59,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:59,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:51:59,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:00,260 INFO L130 PetriNetUnfolder]: 237/741 cut-off events. [2023-08-30 08:52:00,260 INFO L131 PetriNetUnfolder]: For 9583/9583 co-relation queries the response was YES. [2023-08-30 08:52:00,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5321 conditions, 741 events. 237/741 cut-off events. For 9583/9583 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4924 event pairs, 122 based on Foata normal form. 1/742 useless extension candidates. Maximal degree in co-relation 5264. Up to 473 conditions per place. [2023-08-30 08:52:00,264 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 169 selfloop transitions, 41 changer transitions 0/211 dead transitions. [2023-08-30 08:52:00,264 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 211 transitions, 3937 flow [2023-08-30 08:52:00,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:52:00,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:52:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1386 transitions. [2023-08-30 08:52:00,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43258426966292135 [2023-08-30 08:52:00,266 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1386 transitions. [2023-08-30 08:52:00,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1386 transitions. [2023-08-30 08:52:00,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:00,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1386 transitions. [2023-08-30 08:52:00,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 115.5) internal successors, (1386), 12 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:00,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:00,270 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:00,270 INFO L175 Difference]: Start difference. First operand has 285 places, 195 transitions, 3424 flow. Second operand 12 states and 1386 transitions. [2023-08-30 08:52:00,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 211 transitions, 3937 flow [2023-08-30 08:52:00,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 211 transitions, 3807 flow, removed 16 selfloop flow, removed 13 redundant places. [2023-08-30 08:52:00,295 INFO L231 Difference]: Finished difference. Result has 284 places, 196 transitions, 3403 flow [2023-08-30 08:52:00,295 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3308, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3403, PETRI_PLACES=284, PETRI_TRANSITIONS=196} [2023-08-30 08:52:00,296 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 246 predicate places. [2023-08-30 08:52:00,296 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 196 transitions, 3403 flow [2023-08-30 08:52:00,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:00,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:00,296 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:00,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-08-30 08:52:00,297 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:00,299 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:00,299 INFO L85 PathProgramCache]: Analyzing trace with hash -441709849, now seen corresponding path program 8 times [2023-08-30 08:52:00,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:00,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539739704] [2023-08-30 08:52:00,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:00,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:01,262 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 08:52:01,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:01,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539739704] [2023-08-30 08:52:01,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539739704] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:01,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:01,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:01,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349394178] [2023-08-30 08:52:01,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:01,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:01,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:01,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:01,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:02,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:52:02,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 196 transitions, 3403 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:02,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:02,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:52:02,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:02,837 INFO L130 PetriNetUnfolder]: 236/740 cut-off events. [2023-08-30 08:52:02,837 INFO L131 PetriNetUnfolder]: For 9365/9365 co-relation queries the response was YES. [2023-08-30 08:52:02,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5236 conditions, 740 events. 236/740 cut-off events. For 9365/9365 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4919 event pairs, 102 based on Foata normal form. 1/741 useless extension candidates. Maximal degree in co-relation 5177. Up to 277 conditions per place. [2023-08-30 08:52:02,842 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 115 selfloop transitions, 100 changer transitions 0/216 dead transitions. [2023-08-30 08:52:02,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 216 transitions, 3977 flow [2023-08-30 08:52:02,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 08:52:02,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 08:52:02,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1950 transitions. [2023-08-30 08:52:02,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42961004626569727 [2023-08-30 08:52:02,843 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1950 transitions. [2023-08-30 08:52:02,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1950 transitions. [2023-08-30 08:52:02,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:02,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1950 transitions. [2023-08-30 08:52:02,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 114.70588235294117) internal successors, (1950), 17 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:02,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:02,847 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:02,847 INFO L175 Difference]: Start difference. First operand has 284 places, 196 transitions, 3403 flow. Second operand 17 states and 1950 transitions. [2023-08-30 08:52:02,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 216 transitions, 3977 flow [2023-08-30 08:52:02,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 216 transitions, 3880 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-30 08:52:02,873 INFO L231 Difference]: Finished difference. Result has 293 places, 199 transitions, 3627 flow [2023-08-30 08:52:02,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3306, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3627, PETRI_PLACES=293, PETRI_TRANSITIONS=199} [2023-08-30 08:52:02,873 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 255 predicate places. [2023-08-30 08:52:02,873 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 199 transitions, 3627 flow [2023-08-30 08:52:02,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:02,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:02,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:02,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-08-30 08:52:02,874 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:02,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash -866783833, now seen corresponding path program 9 times [2023-08-30 08:52:02,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:02,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344891614] [2023-08-30 08:52:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:02,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:03,579 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 08:52:03,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:03,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344891614] [2023-08-30 08:52:03,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344891614] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:03,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:03,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:52:03,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953963762] [2023-08-30 08:52:03,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:03,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:52:03,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:03,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:52:03,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:52:04,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 267 [2023-08-30 08:52:04,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 199 transitions, 3627 flow. Second operand has 13 states, 13 states have (on average 113.23076923076923) internal successors, (1472), 13 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:04,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:04,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 267 [2023-08-30 08:52:04,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:04,851 INFO L130 PetriNetUnfolder]: 301/944 cut-off events. [2023-08-30 08:52:04,851 INFO L131 PetriNetUnfolder]: For 12500/12500 co-relation queries the response was YES. [2023-08-30 08:52:04,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6844 conditions, 944 events. 301/944 cut-off events. For 12500/12500 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6755 event pairs, 191 based on Foata normal form. 1/945 useless extension candidates. Maximal degree in co-relation 6783. Up to 611 conditions per place. [2023-08-30 08:52:04,857 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 238 selfloop transitions, 28 changer transitions 0/267 dead transitions. [2023-08-30 08:52:04,857 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 267 transitions, 5115 flow [2023-08-30 08:52:04,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:52:04,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:52:04,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1523 transitions. [2023-08-30 08:52:04,859 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4387784500144051 [2023-08-30 08:52:04,859 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1523 transitions. [2023-08-30 08:52:04,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1523 transitions. [2023-08-30 08:52:04,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:04,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1523 transitions. [2023-08-30 08:52:04,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.15384615384616) internal successors, (1523), 13 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:04,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:04,862 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:04,863 INFO L175 Difference]: Start difference. First operand has 293 places, 199 transitions, 3627 flow. Second operand 13 states and 1523 transitions. [2023-08-30 08:52:04,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 267 transitions, 5115 flow [2023-08-30 08:52:04,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 267 transitions, 4977 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-08-30 08:52:04,895 INFO L231 Difference]: Finished difference. Result has 303 places, 218 transitions, 3968 flow [2023-08-30 08:52:04,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3520, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3968, PETRI_PLACES=303, PETRI_TRANSITIONS=218} [2023-08-30 08:52:04,896 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 265 predicate places. [2023-08-30 08:52:04,896 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 218 transitions, 3968 flow [2023-08-30 08:52:04,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 113.23076923076923) internal successors, (1472), 13 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:04,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:04,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:04,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-08-30 08:52:04,897 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:04,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:04,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1947226919, now seen corresponding path program 10 times [2023-08-30 08:52:04,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:04,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066349259] [2023-08-30 08:52:04,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:04,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:05,639 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 08:52:05,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:05,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066349259] [2023-08-30 08:52:05,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066349259] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:05,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:05,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:05,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251642312] [2023-08-30 08:52:05,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:05,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:05,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:05,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:05,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:06,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:52:06,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 218 transitions, 3968 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:06,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:06,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:52:06,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:06,831 INFO L130 PetriNetUnfolder]: 300/943 cut-off events. [2023-08-30 08:52:06,831 INFO L131 PetriNetUnfolder]: For 12323/12323 co-relation queries the response was YES. [2023-08-30 08:52:06,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6779 conditions, 943 events. 300/943 cut-off events. For 12323/12323 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6750 event pairs, 140 based on Foata normal form. 1/944 useless extension candidates. Maximal degree in co-relation 6709. Up to 465 conditions per place. [2023-08-30 08:52:06,836 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 156 selfloop transitions, 74 changer transitions 0/231 dead transitions. [2023-08-30 08:52:06,836 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 231 transitions, 4497 flow [2023-08-30 08:52:06,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:52:06,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:52:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1385 transitions. [2023-08-30 08:52:06,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4322721598002497 [2023-08-30 08:52:06,838 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1385 transitions. [2023-08-30 08:52:06,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1385 transitions. [2023-08-30 08:52:06,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:06,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1385 transitions. [2023-08-30 08:52:06,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 115.41666666666667) internal successors, (1385), 12 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:06,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:06,841 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:06,841 INFO L175 Difference]: Start difference. First operand has 303 places, 218 transitions, 3968 flow. Second operand 12 states and 1385 transitions. [2023-08-30 08:52:06,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 231 transitions, 4497 flow [2023-08-30 08:52:06,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 231 transitions, 4468 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-30 08:52:06,873 INFO L231 Difference]: Finished difference. Result has 312 places, 219 transitions, 4106 flow [2023-08-30 08:52:06,873 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3939, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4106, PETRI_PLACES=312, PETRI_TRANSITIONS=219} [2023-08-30 08:52:06,874 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 274 predicate places. [2023-08-30 08:52:06,874 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 219 transitions, 4106 flow [2023-08-30 08:52:06,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:06,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:06,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:06,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-08-30 08:52:06,875 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:06,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:06,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2053882669, now seen corresponding path program 11 times [2023-08-30 08:52:06,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:06,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129909396] [2023-08-30 08:52:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:06,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:07,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:07,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129909396] [2023-08-30 08:52:07,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129909396] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:07,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:07,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:07,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790314646] [2023-08-30 08:52:07,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:07,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:07,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:07,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:07,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:08,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:52:08,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 219 transitions, 4106 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:08,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:08,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:52:08,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:08,926 INFO L130 PetriNetUnfolder]: 297/938 cut-off events. [2023-08-30 08:52:08,926 INFO L131 PetriNetUnfolder]: For 12632/12632 co-relation queries the response was YES. [2023-08-30 08:52:08,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6785 conditions, 938 events. 297/938 cut-off events. For 12632/12632 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6758 event pairs, 102 based on Foata normal form. 3/941 useless extension candidates. Maximal degree in co-relation 6714. Up to 426 conditions per place. [2023-08-30 08:52:08,933 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 93 selfloop transitions, 142 changer transitions 0/236 dead transitions. [2023-08-30 08:52:08,933 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 236 transitions, 4730 flow [2023-08-30 08:52:08,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 08:52:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 08:52:08,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2169 transitions. [2023-08-30 08:52:08,935 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42755765819041985 [2023-08-30 08:52:08,935 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2169 transitions. [2023-08-30 08:52:08,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2169 transitions. [2023-08-30 08:52:08,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:08,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2169 transitions. [2023-08-30 08:52:08,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 114.15789473684211) internal successors, (2169), 19 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:08,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:08,940 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:08,940 INFO L175 Difference]: Start difference. First operand has 312 places, 219 transitions, 4106 flow. Second operand 19 states and 2169 transitions. [2023-08-30 08:52:08,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 236 transitions, 4730 flow [2023-08-30 08:52:08,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 236 transitions, 4592 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-30 08:52:08,978 INFO L231 Difference]: Finished difference. Result has 323 places, 223 transitions, 4434 flow [2023-08-30 08:52:08,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3968, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4434, PETRI_PLACES=323, PETRI_TRANSITIONS=223} [2023-08-30 08:52:08,979 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 285 predicate places. [2023-08-30 08:52:08,979 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 223 transitions, 4434 flow [2023-08-30 08:52:08,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:08,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:08,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:08,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-08-30 08:52:08,980 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:08,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash 648673399, now seen corresponding path program 12 times [2023-08-30 08:52:08,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:08,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585986284] [2023-08-30 08:52:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:08,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:09,726 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 08:52:09,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:09,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585986284] [2023-08-30 08:52:09,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585986284] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:09,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:09,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:09,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779172859] [2023-08-30 08:52:09,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:09,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:09,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:09,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:09,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:10,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:52:10,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 223 transitions, 4434 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:10,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:10,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:52:10,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:10,933 INFO L130 PetriNetUnfolder]: 293/926 cut-off events. [2023-08-30 08:52:10,934 INFO L131 PetriNetUnfolder]: For 14164/14164 co-relation queries the response was YES. [2023-08-30 08:52:10,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6967 conditions, 926 events. 293/926 cut-off events. For 14164/14164 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6619 event pairs, 62 based on Foata normal form. 4/930 useless extension candidates. Maximal degree in co-relation 6894. Up to 552 conditions per place. [2023-08-30 08:52:10,939 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 129 selfloop transitions, 102 changer transitions 0/232 dead transitions. [2023-08-30 08:52:10,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 232 transitions, 4943 flow [2023-08-30 08:52:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:52:10,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:52:10,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1603 transitions. [2023-08-30 08:52:10,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4288389513108614 [2023-08-30 08:52:10,941 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1603 transitions. [2023-08-30 08:52:10,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1603 transitions. [2023-08-30 08:52:10,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:10,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1603 transitions. [2023-08-30 08:52:10,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.5) internal successors, (1603), 14 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:10,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:10,944 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:10,944 INFO L175 Difference]: Start difference. First operand has 323 places, 223 transitions, 4434 flow. Second operand 14 states and 1603 transitions. [2023-08-30 08:52:10,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 232 transitions, 4943 flow [2023-08-30 08:52:10,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 232 transitions, 4786 flow, removed 6 selfloop flow, removed 15 redundant places. [2023-08-30 08:52:10,984 INFO L231 Difference]: Finished difference. Result has 322 places, 225 transitions, 4522 flow [2023-08-30 08:52:10,984 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4281, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4522, PETRI_PLACES=322, PETRI_TRANSITIONS=225} [2023-08-30 08:52:10,985 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 284 predicate places. [2023-08-30 08:52:10,985 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 225 transitions, 4522 flow [2023-08-30 08:52:10,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:10,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:10,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:10,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-08-30 08:52:10,986 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:10,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:10,986 INFO L85 PathProgramCache]: Analyzing trace with hash 425565329, now seen corresponding path program 13 times [2023-08-30 08:52:10,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:10,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264492150] [2023-08-30 08:52:10,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:10,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:11,680 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 08:52:11,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:11,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264492150] [2023-08-30 08:52:11,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264492150] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:11,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:11,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:11,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081208060] [2023-08-30 08:52:11,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:11,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:11,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:11,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:11,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:12,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:52:12,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 225 transitions, 4522 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:12,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:12,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:52:12,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:13,085 INFO L130 PetriNetUnfolder]: 292/925 cut-off events. [2023-08-30 08:52:13,086 INFO L131 PetriNetUnfolder]: For 14479/14479 co-relation queries the response was YES. [2023-08-30 08:52:13,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7018 conditions, 925 events. 292/925 cut-off events. For 14479/14479 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6601 event pairs, 69 based on Foata normal form. 1/926 useless extension candidates. Maximal degree in co-relation 6944. Up to 379 conditions per place. [2023-08-30 08:52:13,093 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 81 selfloop transitions, 154 changer transitions 0/236 dead transitions. [2023-08-30 08:52:13,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 236 transitions, 5082 flow [2023-08-30 08:52:13,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 08:52:13,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 08:52:13,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2162 transitions. [2023-08-30 08:52:13,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4261778040607136 [2023-08-30 08:52:13,095 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2162 transitions. [2023-08-30 08:52:13,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2162 transitions. [2023-08-30 08:52:13,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:13,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2162 transitions. [2023-08-30 08:52:13,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 113.78947368421052) internal successors, (2162), 19 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:13,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:13,100 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:13,100 INFO L175 Difference]: Start difference. First operand has 322 places, 225 transitions, 4522 flow. Second operand 19 states and 2162 transitions. [2023-08-30 08:52:13,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 236 transitions, 5082 flow [2023-08-30 08:52:13,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 236 transitions, 4906 flow, removed 1 selfloop flow, removed 11 redundant places. [2023-08-30 08:52:13,144 INFO L231 Difference]: Finished difference. Result has 331 places, 227 transitions, 4819 flow [2023-08-30 08:52:13,145 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4346, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4819, PETRI_PLACES=331, PETRI_TRANSITIONS=227} [2023-08-30 08:52:13,145 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 293 predicate places. [2023-08-30 08:52:13,145 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 227 transitions, 4819 flow [2023-08-30 08:52:13,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:13,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:13,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:13,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-08-30 08:52:13,146 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:13,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:13,146 INFO L85 PathProgramCache]: Analyzing trace with hash 841648449, now seen corresponding path program 14 times [2023-08-30 08:52:13,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:13,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966934375] [2023-08-30 08:52:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:13,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:13,894 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 08:52:13,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:13,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966934375] [2023-08-30 08:52:13,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966934375] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:13,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:13,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 08:52:13,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184042444] [2023-08-30 08:52:13,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:13,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 08:52:13,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:13,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 08:52:13,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-08-30 08:52:14,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 08:52:14,525 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 227 transitions, 4819 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:14,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:14,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 08:52:14,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:14,966 INFO L130 PetriNetUnfolder]: 291/922 cut-off events. [2023-08-30 08:52:14,967 INFO L131 PetriNetUnfolder]: For 16093/16093 co-relation queries the response was YES. [2023-08-30 08:52:14,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7257 conditions, 922 events. 291/922 cut-off events. For 16093/16093 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6585 event pairs, 47 based on Foata normal form. 1/923 useless extension candidates. Maximal degree in co-relation 7181. Up to 518 conditions per place. [2023-08-30 08:52:14,972 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 122 selfloop transitions, 109 changer transitions 0/232 dead transitions. [2023-08-30 08:52:14,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 232 transitions, 5308 flow [2023-08-30 08:52:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:52:14,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:52:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1598 transitions. [2023-08-30 08:52:14,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4275013376136972 [2023-08-30 08:52:14,977 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1598 transitions. [2023-08-30 08:52:14,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1598 transitions. [2023-08-30 08:52:14,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:14,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1598 transitions. [2023-08-30 08:52:14,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.14285714285714) internal successors, (1598), 14 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:14,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:14,980 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:14,981 INFO L175 Difference]: Start difference. First operand has 331 places, 227 transitions, 4819 flow. Second operand 14 states and 1598 transitions. [2023-08-30 08:52:14,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 232 transitions, 5308 flow [2023-08-30 08:52:15,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 232 transitions, 5111 flow, removed 8 selfloop flow, removed 16 redundant places. [2023-08-30 08:52:15,032 INFO L231 Difference]: Finished difference. Result has 329 places, 228 transitions, 4872 flow [2023-08-30 08:52:15,032 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4626, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4872, PETRI_PLACES=329, PETRI_TRANSITIONS=228} [2023-08-30 08:52:15,033 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 291 predicate places. [2023-08-30 08:52:15,033 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 228 transitions, 4872 flow [2023-08-30 08:52:15,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,033 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:15,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:15,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-08-30 08:52:15,033 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:15,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:15,034 INFO L85 PathProgramCache]: Analyzing trace with hash 748659860, now seen corresponding path program 1 times [2023-08-30 08:52:15,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:15,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12697256] [2023-08-30 08:52:15,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:15,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:15,334 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 08:52:15,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:15,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12697256] [2023-08-30 08:52:15,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12697256] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:15,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:15,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:52:15,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227714392] [2023-08-30 08:52:15,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:15,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:52:15,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:15,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:52:15,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:52:15,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 267 [2023-08-30 08:52:15,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 228 transitions, 4872 flow. Second operand has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:15,479 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 267 [2023-08-30 08:52:15,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:15,781 INFO L130 PetriNetUnfolder]: 291/1034 cut-off events. [2023-08-30 08:52:15,781 INFO L131 PetriNetUnfolder]: For 19194/19194 co-relation queries the response was YES. [2023-08-30 08:52:15,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7525 conditions, 1034 events. 291/1034 cut-off events. For 19194/19194 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8098 event pairs, 43 based on Foata normal form. 42/1076 useless extension candidates. Maximal degree in co-relation 7449. Up to 364 conditions per place. [2023-08-30 08:52:15,788 INFO L137 encePairwiseOnDemand]: 260/267 looper letters, 128 selfloop transitions, 47 changer transitions 62/238 dead transitions. [2023-08-30 08:52:15,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 238 transitions, 5373 flow [2023-08-30 08:52:15,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:52:15,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:52:15,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 869 transitions. [2023-08-30 08:52:15,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4649545211342964 [2023-08-30 08:52:15,789 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 869 transitions. [2023-08-30 08:52:15,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 869 transitions. [2023-08-30 08:52:15,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:15,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 869 transitions. [2023-08-30 08:52:15,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 124.14285714285714) internal successors, (869), 7 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,791 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,791 INFO L175 Difference]: Start difference. First operand has 329 places, 228 transitions, 4872 flow. Second operand 7 states and 869 transitions. [2023-08-30 08:52:15,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 238 transitions, 5373 flow [2023-08-30 08:52:15,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 238 transitions, 5187 flow, removed 1 selfloop flow, removed 11 redundant places. [2023-08-30 08:52:15,861 INFO L231 Difference]: Finished difference. Result has 326 places, 171 transitions, 3313 flow [2023-08-30 08:52:15,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4686, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3313, PETRI_PLACES=326, PETRI_TRANSITIONS=171} [2023-08-30 08:52:15,862 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 288 predicate places. [2023-08-30 08:52:15,862 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 171 transitions, 3313 flow [2023-08-30 08:52:15,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:15,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:15,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:15,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-08-30 08:52:15,863 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:15,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:15,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1420322758, now seen corresponding path program 2 times [2023-08-30 08:52:15,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:15,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693963721] [2023-08-30 08:52:15,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:15,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:16,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:16,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693963721] [2023-08-30 08:52:16,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693963721] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:16,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:16,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:52:16,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953435467] [2023-08-30 08:52:16,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:16,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:52:16,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:16,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:52:16,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:52:16,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 08:52:16,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 171 transitions, 3313 flow. Second operand has 8 states, 8 states have (on average 119.125) internal successors, (953), 8 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:16,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:16,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 08:52:16,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:16,706 INFO L130 PetriNetUnfolder]: 130/691 cut-off events. [2023-08-30 08:52:16,706 INFO L131 PetriNetUnfolder]: For 12655/12655 co-relation queries the response was YES. [2023-08-30 08:52:16,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4831 conditions, 691 events. 130/691 cut-off events. For 12655/12655 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 5600 event pairs, 15 based on Foata normal form. 42/733 useless extension candidates. Maximal degree in co-relation 4753. Up to 265 conditions per place. [2023-08-30 08:52:16,711 INFO L137 encePairwiseOnDemand]: 258/267 looper letters, 64 selfloop transitions, 29 changer transitions 81/175 dead transitions. [2023-08-30 08:52:16,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 175 transitions, 3459 flow [2023-08-30 08:52:16,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:52:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:52:16,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1094 transitions. [2023-08-30 08:52:16,713 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.455264253017062 [2023-08-30 08:52:16,713 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1094 transitions. [2023-08-30 08:52:16,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1094 transitions. [2023-08-30 08:52:16,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:16,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1094 transitions. [2023-08-30 08:52:16,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 121.55555555555556) internal successors, (1094), 9 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:16,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:16,715 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:16,715 INFO L175 Difference]: Start difference. First operand has 326 places, 171 transitions, 3313 flow. Second operand 9 states and 1094 transitions. [2023-08-30 08:52:16,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 175 transitions, 3459 flow [2023-08-30 08:52:16,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 175 transitions, 2984 flow, removed 2 selfloop flow, removed 35 redundant places. [2023-08-30 08:52:16,742 INFO L231 Difference]: Finished difference. Result has 285 places, 88 transitions, 1342 flow [2023-08-30 08:52:16,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2503, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1342, PETRI_PLACES=285, PETRI_TRANSITIONS=88} [2023-08-30 08:52:16,742 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 247 predicate places. [2023-08-30 08:52:16,743 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 88 transitions, 1342 flow [2023-08-30 08:52:16,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 119.125) internal successors, (953), 8 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:16,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:16,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:16,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-08-30 08:52:16,743 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:16,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:16,744 INFO L85 PathProgramCache]: Analyzing trace with hash -571750764, now seen corresponding path program 3 times [2023-08-30 08:52:16,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:16,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241478856] [2023-08-30 08:52:16,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:16,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:17,038 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 08:52:17,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:17,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241478856] [2023-08-30 08:52:17,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241478856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:17,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:17,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:52:17,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749571455] [2023-08-30 08:52:17,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:17,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:52:17,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:17,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:52:17,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:52:17,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 267 [2023-08-30 08:52:17,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 88 transitions, 1342 flow. Second operand has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:17,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:17,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 267 [2023-08-30 08:52:17,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:17,346 INFO L130 PetriNetUnfolder]: 54/258 cut-off events. [2023-08-30 08:52:17,346 INFO L131 PetriNetUnfolder]: For 2850/2850 co-relation queries the response was YES. [2023-08-30 08:52:17,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1761 conditions, 258 events. 54/258 cut-off events. For 2850/2850 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1361 event pairs, 8 based on Foata normal form. 42/300 useless extension candidates. Maximal degree in co-relation 1692. Up to 84 conditions per place. [2023-08-30 08:52:17,348 INFO L137 encePairwiseOnDemand]: 261/267 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-30 08:52:17,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 85 transitions, 1414 flow [2023-08-30 08:52:17,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:52:17,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:52:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 852 transitions. [2023-08-30 08:52:17,349 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45585874799357945 [2023-08-30 08:52:17,349 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 852 transitions. [2023-08-30 08:52:17,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 852 transitions. [2023-08-30 08:52:17,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:17,349 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 852 transitions. [2023-08-30 08:52:17,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.71428571428571) internal successors, (852), 7 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:17,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:17,351 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:17,351 INFO L175 Difference]: Start difference. First operand has 285 places, 88 transitions, 1342 flow. Second operand 7 states and 852 transitions. [2023-08-30 08:52:17,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 85 transitions, 1414 flow [2023-08-30 08:52:17,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 85 transitions, 1034 flow, removed 5 selfloop flow, removed 51 redundant places. [2023-08-30 08:52:17,357 INFO L231 Difference]: Finished difference. Result has 168 places, 0 transitions, 0 flow [2023-08-30 08:52:17,357 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=168, PETRI_TRANSITIONS=0} [2023-08-30 08:52:17,357 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 130 predicate places. [2023-08-30 08:52:17,357 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 0 transitions, 0 flow [2023-08-30 08:52:17,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:17,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-08-30 08:52:17,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-08-30 08:52:17,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-08-30 08:52:17,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-08-30 08:52:17,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-08-30 08:52:17,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-08-30 08:52:17,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-08-30 08:52:17,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-08-30 08:52:17,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-08-30 08:52:17,361 INFO L445 BasicCegarLoop]: Path program histogram: [16, 14, 6, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2023-08-30 08:52:17,364 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:52:17,364 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:52:17,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:52:17 BasicIcfg [2023-08-30 08:52:17,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:52:17,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:52:17,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:52:17,367 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:52:17,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:29" (3/4) ... [2023-08-30 08:52:17,368 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:52:17,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-30 08:52:17,377 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2023-08-30 08:52:17,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-08-30 08:52:17,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:52:17,378 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:52:17,403 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:52:17,403 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:52:17,404 INFO L158 Benchmark]: Toolchain (without parser) took 109519.12ms. Allocated memory was 102.8MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 77.5MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2023-08-30 08:52:17,404 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 40.6MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:52:17,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 734.90ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 51.2MB in the end (delta: 26.2MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2023-08-30 08:52:17,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.20ms. Allocated memory is still 102.8MB. Free memory was 51.2MB in the beginning and 48.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:52:17,404 INFO L158 Benchmark]: Boogie Preprocessor took 41.06ms. Allocated memory is still 102.8MB. Free memory was 48.1MB in the beginning and 44.5MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:52:17,404 INFO L158 Benchmark]: RCFGBuilder took 604.15ms. Allocated memory is still 102.8MB. Free memory was 44.5MB in the beginning and 55.8MB in the end (delta: -11.3MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-08-30 08:52:17,405 INFO L158 Benchmark]: TraceAbstraction took 108022.25ms. Allocated memory was 102.8MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 55.2MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2023-08-30 08:52:17,405 INFO L158 Benchmark]: Witness Printer took 36.84ms. Allocated memory is still 1.3GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:52:17,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 40.6MB in the end (delta: 79.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 734.90ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 51.2MB in the end (delta: 26.2MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.20ms. Allocated memory is still 102.8MB. Free memory was 51.2MB in the beginning and 48.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.06ms. Allocated memory is still 102.8MB. Free memory was 48.1MB in the beginning and 44.5MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 604.15ms. Allocated memory is still 102.8MB. Free memory was 44.5MB in the beginning and 55.8MB in the end (delta: -11.3MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * TraceAbstraction took 108022.25ms. Allocated memory was 102.8MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 55.2MB in the beginning and 1.2GB in the end (delta: -1.2GB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Witness Printer took 36.84ms. Allocated memory is still 1.3GB. Free memory was 1.2GB in the beginning and 1.2GB 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: 5.1s, 132 PlacesBefore, 38 PlacesAfterwards, 127 TransitionsBefore, 32 TransitionsAfterwards, 3360 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 9058 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3470, independent: 3133, independent conditional: 0, independent unconditional: 3133, dependent: 337, dependent conditional: 0, dependent unconditional: 337, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1904, independent: 1846, independent conditional: 0, independent unconditional: 1846, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3470, independent: 1287, independent conditional: 0, independent unconditional: 1287, dependent: 279, dependent conditional: 0, dependent unconditional: 279, unknown: 1904, unknown conditional: 0, unknown unconditional: 1904] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1700]: 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, 169 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: 107.9s, OverallIterations: 68, TraceHistogramMax: 1, PathProgramHistogramMax: 16, EmptinessCheckTime: 0.0s, AutomataDifference: 65.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21004 SdHoareTripleChecker+Valid, 43.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17609 mSDsluCounter, 19566 SdHoareTripleChecker+Invalid, 36.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19383 mSDsCounter, 2595 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92730 IncrementalHoareTripleChecker+Invalid, 95325 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2595 mSolverCounterUnsat, 183 mSDtfsCounter, 92730 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1283 GetRequests, 110 SyntacticMatches, 4 SemanticMatches, 1169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3011 ImplicationChecksByTransitivity, 17.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4872occurred in iteration=65, InterpolantAutomatonStates: 879, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 35.5s InterpolantComputationTime, 903 NumberOfCodeBlocks, 903 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 835 ConstructedInterpolants, 0 QuantifiedInterpolants, 16089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 68 InterpolantComputations, 68 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 08:52:17,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE