./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations 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_3-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:50:23,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:50:23,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:50:23,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:50:23,853 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:50:23,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:50:23,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:50:23,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:50:23,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:50:23,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:50:23,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:50:23,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:50:23,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:50:23,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:50:23,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:50:23,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:50:23,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:50:23,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:50:23,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:50:23,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:50:23,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:50:23,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:50:23,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:50:23,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:50:23,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:50:23,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:50:23,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:50:23,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:50:23,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:50:23,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:50:23,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:50:23,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:50:23,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:50:23,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:50:23,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:50:23,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:50:23,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:50:23,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:50:23,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:50:23,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:50:23,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:50:23,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:50:23,966 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:50:23,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:50:23,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:50:23,967 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:50:23,968 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:50:23,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:50:23,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:50:23,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:50:23,969 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:50:23,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:50:23,970 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:50:23,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:50:23,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:50:23,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:50:23,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:50:23,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:50:23,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:50:23,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:50:23,972 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:50:23,972 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:50:23,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:50:23,972 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:50:23,972 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:50:23,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:50:23,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:50:23,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:50:23,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:23,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:50:23,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:50:23,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:50:23,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:50:23,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:50:23,974 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:50:23,975 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:50:23,975 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:50:23,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:50:23,975 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:50:23,975 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e4b13d10edb91f551b46ac7114aaff2ae2d5e1278c432e05cda4c2eb58cb60 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:50:24,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:50:24,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:50:24,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:50:24,295 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:50:24,300 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:50:24,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-30 08:50:25,527 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:50:25,838 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:50:25,839 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-08-30 08:50:25,857 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23d01c76d/8e134115d99d45398ceabe10d066f960/FLAG58304b6f1 [2023-08-30 08:50:25,872 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23d01c76d/8e134115d99d45398ceabe10d066f960 [2023-08-30 08:50:25,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:50:25,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:50:25,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:25,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:50:25,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:50:25,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398edbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25, skipping insertion in model container [2023-08-30 08:50:25,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:50:25,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:50:26,075 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 08:50:26,428 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-08-30 08:50:26,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:26,459 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:50:26,470 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 08:50:26,511 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-08-30 08:50:26,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:26,608 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:26,609 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:26,609 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:26,615 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:50:26,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26 WrapperNode [2023-08-30 08:50:26,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:26,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:26,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:50:26,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:50:26,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,679 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-08-30 08:50:26,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:26,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:50:26,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:50:26,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:50:26,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:50:26,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:50:26,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:50:26,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:50:26,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (1/1) ... [2023-08-30 08:50:26,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:26,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:50:26,779 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 08:50:26,808 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 08:50:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:50:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:50:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:50:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:50:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 08:50:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:50:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 08:50:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:50:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:50:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-30 08:50:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-30 08:50:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:50:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:50:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:50:26,826 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 08:50:27,153 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:50:27,161 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:50:27,485 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:50:27,542 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:50:27,543 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:50:27,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:27 BoogieIcfgContainer [2023-08-30 08:50:27,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:50:27,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:50:27,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:50:27,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:50:27,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:50:25" (1/3) ... [2023-08-30 08:50:27,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359aff4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:27, skipping insertion in model container [2023-08-30 08:50:27,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:26" (2/3) ... [2023-08-30 08:50:27,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359aff4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:27, skipping insertion in model container [2023-08-30 08:50:27,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:27" (3/3) ... [2023-08-30 08:50:27,553 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-08-30 08:50:27,561 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:50:27,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:50:27,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 08:50:27,571 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:50:27,653 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 08:50:27,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 08:50:27,819 INFO L130 PetriNetUnfolder]: 8/193 cut-off events. [2023-08-30 08:50:27,820 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 08:50:27,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 193 events. 8/193 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 318 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 104. Up to 4 conditions per place. [2023-08-30 08:50:27,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 08:50:27,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:27,838 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:50:27,852 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:27,856 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:27,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 127 transitions, 263 flow [2023-08-30 08:50:27,893 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2023-08-30 08:50:27,893 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 08:50:27,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 127 events. 2/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 129 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-30 08:50:27,896 INFO L119 LiptonReduction]: Number of co-enabled transitions 3480 [2023-08-30 08:50:33,196 INFO L134 LiptonReduction]: Checked pairs total: 9917 [2023-08-30 08:50:33,197 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-08-30 08:50:33,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:50:33,214 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;@6fc81a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:50:33,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 08:50:33,218 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2023-08-30 08:50:33,218 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:50:33,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:33,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:50:33,220 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:33,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:33,224 INFO L85 PathProgramCache]: Analyzing trace with hash 520523751, now seen corresponding path program 1 times [2023-08-30 08:50:33,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:33,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125550690] [2023-08-30 08:50:33,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:33,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:34,111 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 08:50:34,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:34,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125550690] [2023-08-30 08:50:34,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125550690] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:34,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:34,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:50:34,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279135380] [2023-08-30 08:50:34,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:34,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:50:34,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:34,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:50:34,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:50:34,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 266 [2023-08-30 08:50:34,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:34,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 266 [2023-08-30 08:50:34,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:34,687 INFO L130 PetriNetUnfolder]: 1195/1938 cut-off events. [2023-08-30 08:50:34,687 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-30 08:50:34,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3898 conditions, 1938 events. 1195/1938 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 9116 event pairs, 926 based on Foata normal form. 0/1516 useless extension candidates. Maximal degree in co-relation 3812. Up to 1926 conditions per place. [2023-08-30 08:50:34,717 INFO L137 encePairwiseOnDemand]: 257/266 looper letters, 29 selfloop transitions, 8 changer transitions 0/38 dead transitions. [2023-08-30 08:50:34,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 38 transitions, 159 flow [2023-08-30 08:50:34,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:34,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2023-08-30 08:50:34,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.487468671679198 [2023-08-30 08:50:34,737 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2023-08-30 08:50:34,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2023-08-30 08:50:34,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:34,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2023-08-30 08:50:34,749 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 08:50:34,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,756 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,758 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 75 flow. Second operand 6 states and 778 transitions. [2023-08-30 08:50:34,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 38 transitions, 159 flow [2023-08-30 08:50:34,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:34,762 INFO L231 Difference]: Finished difference. Result has 43 places, 37 transitions, 115 flow [2023-08-30 08:50:34,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2023-08-30 08:50:34,767 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2023-08-30 08:50:34,768 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 115 flow [2023-08-30 08:50:34,768 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 08:50:34,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:34,769 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:50:34,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:50:34,769 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 08:50:34,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:34,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1043630122, now seen corresponding path program 1 times [2023-08-30 08:50:34,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:34,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449037230] [2023-08-30 08:50:34,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:34,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:35,281 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 08:50:35,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:35,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449037230] [2023-08-30 08:50:35,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449037230] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:35,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:35,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:35,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503918420] [2023-08-30 08:50:35,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:35,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:35,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:35,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:35,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:35,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-08-30 08:50:35,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 115 flow. Second operand has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:35,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-08-30 08:50:35,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:35,753 INFO L130 PetriNetUnfolder]: 1185/1922 cut-off events. [2023-08-30 08:50:35,754 INFO L131 PetriNetUnfolder]: For 354/354 co-relation queries the response was YES. [2023-08-30 08:50:35,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4312 conditions, 1922 events. 1185/1922 cut-off events. For 354/354 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9088 event pairs, 772 based on Foata normal form. 3/1595 useless extension candidates. Maximal degree in co-relation 3706. Up to 1889 conditions per place. [2023-08-30 08:50:35,764 INFO L137 encePairwiseOnDemand]: 257/266 looper letters, 38 selfloop transitions, 14 changer transitions 0/53 dead transitions. [2023-08-30 08:50:35,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 53 transitions, 263 flow [2023-08-30 08:50:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:35,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 783 transitions. [2023-08-30 08:50:35,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4906015037593985 [2023-08-30 08:50:35,768 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 783 transitions. [2023-08-30 08:50:35,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 783 transitions. [2023-08-30 08:50:35,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:35,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 783 transitions. [2023-08-30 08:50:35,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.5) internal successors, (783), 6 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,775 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,775 INFO L175 Difference]: Start difference. First operand has 43 places, 37 transitions, 115 flow. Second operand 6 states and 783 transitions. [2023-08-30 08:50:35,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 53 transitions, 263 flow [2023-08-30 08:50:35,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 53 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:35,778 INFO L231 Difference]: Finished difference. Result has 50 places, 46 transitions, 196 flow [2023-08-30 08:50:35,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=196, PETRI_PLACES=50, PETRI_TRANSITIONS=46} [2023-08-30 08:50:35,779 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 11 predicate places. [2023-08-30 08:50:35,780 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 46 transitions, 196 flow [2023-08-30 08:50:35,780 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 08:50:35,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:35,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:35,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:50:35,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:35,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:35,783 INFO L85 PathProgramCache]: Analyzing trace with hash 2010502852, now seen corresponding path program 1 times [2023-08-30 08:50:35,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:35,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91643951] [2023-08-30 08:50:35,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:35,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:36,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:36,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:36,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91643951] [2023-08-30 08:50:36,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91643951] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:36,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:36,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39502001] [2023-08-30 08:50:36,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:36,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:36,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:36,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:36,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:36,324 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-08-30 08:50:36,326 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 46 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,326 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:36,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-08-30 08:50:36,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:36,635 INFO L130 PetriNetUnfolder]: 1177/1910 cut-off events. [2023-08-30 08:50:36,635 INFO L131 PetriNetUnfolder]: For 1162/1162 co-relation queries the response was YES. [2023-08-30 08:50:36,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4895 conditions, 1910 events. 1177/1910 cut-off events. For 1162/1162 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 9065 event pairs, 867 based on Foata normal form. 0/1584 useless extension candidates. Maximal degree in co-relation 4186. Up to 1885 conditions per place. [2023-08-30 08:50:36,647 INFO L137 encePairwiseOnDemand]: 257/266 looper letters, 42 selfloop transitions, 16 changer transitions 0/59 dead transitions. [2023-08-30 08:50:36,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 59 transitions, 380 flow [2023-08-30 08:50:36,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:36,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:36,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 781 transitions. [2023-08-30 08:50:36,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4893483709273183 [2023-08-30 08:50:36,651 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 781 transitions. [2023-08-30 08:50:36,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 781 transitions. [2023-08-30 08:50:36,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:36,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 781 transitions. [2023-08-30 08:50:36,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 130.16666666666666) internal successors, (781), 6 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,657 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,658 INFO L175 Difference]: Start difference. First operand has 50 places, 46 transitions, 196 flow. Second operand 6 states and 781 transitions. [2023-08-30 08:50:36,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 59 transitions, 380 flow [2023-08-30 08:50:36,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 59 transitions, 364 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:36,664 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 286 flow [2023-08-30 08:50:36,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2023-08-30 08:50:36,666 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 18 predicate places. [2023-08-30 08:50:36,669 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 286 flow [2023-08-30 08:50:36,669 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 08:50:36,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:36,670 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:36,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:50:36,670 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 08:50:36,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:36,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2137217311, now seen corresponding path program 1 times [2023-08-30 08:50:36,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:36,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121444877] [2023-08-30 08:50:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:36,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:37,182 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 08:50:37,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:37,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121444877] [2023-08-30 08:50:37,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121444877] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:37,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:37,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:37,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692862841] [2023-08-30 08:50:37,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:37,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:37,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:37,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:37,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:37,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 08:50:37,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 286 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:37,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 08:50:37,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:37,773 INFO L130 PetriNetUnfolder]: 1169/1898 cut-off events. [2023-08-30 08:50:37,773 INFO L131 PetriNetUnfolder]: For 907/907 co-relation queries the response was YES. [2023-08-30 08:50:37,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4960 conditions, 1898 events. 1169/1898 cut-off events. For 907/907 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8993 event pairs, 673 based on Foata normal form. 2/1664 useless extension candidates. Maximal degree in co-relation 4275. Up to 1847 conditions per place. [2023-08-30 08:50:37,786 INFO L137 encePairwiseOnDemand]: 258/266 looper letters, 52 selfloop transitions, 15 changer transitions 0/68 dead transitions. [2023-08-30 08:50:37,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 68 transitions, 475 flow [2023-08-30 08:50:37,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:50:37,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:50:37,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2023-08-30 08:50:37,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49097744360902257 [2023-08-30 08:50:37,789 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2023-08-30 08:50:37,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2023-08-30 08:50:37,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:37,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2023-08-30 08:50:37,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,794 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,794 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 286 flow. Second operand 5 states and 653 transitions. [2023-08-30 08:50:37,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 68 transitions, 475 flow [2023-08-30 08:50:37,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 455 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:37,798 INFO L231 Difference]: Finished difference. Result has 62 places, 61 transitions, 345 flow [2023-08-30 08:50:37,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=345, PETRI_PLACES=62, PETRI_TRANSITIONS=61} [2023-08-30 08:50:37,799 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 23 predicate places. [2023-08-30 08:50:37,799 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 61 transitions, 345 flow [2023-08-30 08:50:37,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:37,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:37,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:50:37,804 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:37,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:37,805 INFO L85 PathProgramCache]: Analyzing trace with hash -2098905507, now seen corresponding path program 1 times [2023-08-30 08:50:37,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:37,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025888076] [2023-08-30 08:50:37,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:37,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:38,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:38,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025888076] [2023-08-30 08:50:38,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025888076] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:38,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:38,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:38,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086892753] [2023-08-30 08:50:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:38,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:38,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:38,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:38,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:38,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 08:50:38,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 61 transitions, 345 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:38,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 08:50:38,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:38,600 INFO L130 PetriNetUnfolder]: 1181/1916 cut-off events. [2023-08-30 08:50:38,600 INFO L131 PetriNetUnfolder]: For 1625/1625 co-relation queries the response was YES. [2023-08-30 08:50:38,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5525 conditions, 1916 events. 1181/1916 cut-off events. For 1625/1625 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9039 event pairs, 827 based on Foata normal form. 2/1682 useless extension candidates. Maximal degree in co-relation 4693. Up to 1876 conditions per place. [2023-08-30 08:50:38,612 INFO L137 encePairwiseOnDemand]: 256/266 looper letters, 49 selfloop transitions, 28 changer transitions 0/78 dead transitions. [2023-08-30 08:50:38,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 78 transitions, 605 flow [2023-08-30 08:50:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:38,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 779 transitions. [2023-08-30 08:50:38,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2023-08-30 08:50:38,615 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 779 transitions. [2023-08-30 08:50:38,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 779 transitions. [2023-08-30 08:50:38,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:38,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 779 transitions. [2023-08-30 08:50:38,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,620 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,621 INFO L175 Difference]: Start difference. First operand has 62 places, 61 transitions, 345 flow. Second operand 6 states and 779 transitions. [2023-08-30 08:50:38,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 78 transitions, 605 flow [2023-08-30 08:50:38,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 78 transitions, 593 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:38,626 INFO L231 Difference]: Finished difference. Result has 68 places, 73 transitions, 494 flow [2023-08-30 08:50:38,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=68, PETRI_TRANSITIONS=73} [2023-08-30 08:50:38,627 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 29 predicate places. [2023-08-30 08:50:38,627 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 73 transitions, 494 flow [2023-08-30 08:50:38,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,627 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:38,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:38,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:50:38,628 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:38,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:38,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2098847847, now seen corresponding path program 2 times [2023-08-30 08:50:38,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:38,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464735954] [2023-08-30 08:50:38,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:38,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:38,934 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 08:50:38,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:38,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464735954] [2023-08-30 08:50:38,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464735954] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:38,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:38,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 08:50:38,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024386076] [2023-08-30 08:50:38,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:38,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:38,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:38,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:38,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:39,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 08:50:39,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 73 transitions, 494 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:39,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 08:50:39,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:39,460 INFO L130 PetriNetUnfolder]: 1173/1904 cut-off events. [2023-08-30 08:50:39,460 INFO L131 PetriNetUnfolder]: For 1884/1884 co-relation queries the response was YES. [2023-08-30 08:50:39,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5700 conditions, 1904 events. 1173/1904 cut-off events. For 1884/1884 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9016 event pairs, 795 based on Foata normal form. 2/1672 useless extension candidates. Maximal degree in co-relation 4899. Up to 1854 conditions per place. [2023-08-30 08:50:39,472 INFO L137 encePairwiseOnDemand]: 258/266 looper letters, 58 selfloop transitions, 25 changer transitions 0/84 dead transitions. [2023-08-30 08:50:39,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 84 transitions, 743 flow [2023-08-30 08:50:39,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:50:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:50:39,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2023-08-30 08:50:39,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49097744360902257 [2023-08-30 08:50:39,476 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2023-08-30 08:50:39,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2023-08-30 08:50:39,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:39,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2023-08-30 08:50:39,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,480 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 266.0) internal successors, (1596), 6 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,480 INFO L175 Difference]: Start difference. First operand has 68 places, 73 transitions, 494 flow. Second operand 5 states and 653 transitions. [2023-08-30 08:50:39,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 84 transitions, 743 flow [2023-08-30 08:50:39,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 84 transitions, 723 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:39,490 INFO L231 Difference]: Finished difference. Result has 72 places, 79 transitions, 596 flow [2023-08-30 08:50:39,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=596, PETRI_PLACES=72, PETRI_TRANSITIONS=79} [2023-08-30 08:50:39,493 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 33 predicate places. [2023-08-30 08:50:39,493 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 79 transitions, 596 flow [2023-08-30 08:50:39,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:39,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:39,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 08:50:39,494 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 08:50:39,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:39,495 INFO L85 PathProgramCache]: Analyzing trace with hash 483271858, now seen corresponding path program 1 times [2023-08-30 08:50:39,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:39,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820673878] [2023-08-30 08:50:39,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:39,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:40,010 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 08:50:40,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:40,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820673878] [2023-08-30 08:50:40,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820673878] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:40,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:40,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:40,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158303086] [2023-08-30 08:50:40,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:40,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:40,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:40,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:40,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:40,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:50:40,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 79 transitions, 596 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:40,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:50:40,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:40,721 INFO L130 PetriNetUnfolder]: 1189/1928 cut-off events. [2023-08-30 08:50:40,722 INFO L131 PetriNetUnfolder]: For 2297/2297 co-relation queries the response was YES. [2023-08-30 08:50:40,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6069 conditions, 1928 events. 1189/1928 cut-off events. For 2297/2297 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9271 event pairs, 651 based on Foata normal form. 4/1698 useless extension candidates. Maximal degree in co-relation 5226. Up to 1885 conditions per place. [2023-08-30 08:50:40,734 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 68 selfloop transitions, 27 changer transitions 0/96 dead transitions. [2023-08-30 08:50:40,734 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 96 transitions, 887 flow [2023-08-30 08:50:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:50:40,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:50:40,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1007 transitions. [2023-08-30 08:50:40,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4732142857142857 [2023-08-30 08:50:40,738 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1007 transitions. [2023-08-30 08:50:40,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1007 transitions. [2023-08-30 08:50:40,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:40,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1007 transitions. [2023-08-30 08:50:40,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,745 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,745 INFO L175 Difference]: Start difference. First operand has 72 places, 79 transitions, 596 flow. Second operand 8 states and 1007 transitions. [2023-08-30 08:50:40,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 96 transitions, 887 flow [2023-08-30 08:50:40,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 96 transitions, 850 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-30 08:50:40,753 INFO L231 Difference]: Finished difference. Result has 80 places, 89 transitions, 719 flow [2023-08-30 08:50:40,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=719, PETRI_PLACES=80, PETRI_TRANSITIONS=89} [2023-08-30 08:50:40,754 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 41 predicate places. [2023-08-30 08:50:40,754 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 89 transitions, 719 flow [2023-08-30 08:50:40,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:40,755 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:40,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 08:50:40,756 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 08:50:40,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:40,756 INFO L85 PathProgramCache]: Analyzing trace with hash 483266433, now seen corresponding path program 1 times [2023-08-30 08:50:40,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:40,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134425654] [2023-08-30 08:50:40,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:40,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:40,953 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 08:50:40,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:40,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134425654] [2023-08-30 08:50:40,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134425654] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:40,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:40,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:40,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20102811] [2023-08-30 08:50:40,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:40,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:40,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:40,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:40,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:41,068 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-08-30 08:50:41,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 89 transitions, 719 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:41,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-08-30 08:50:41,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:41,507 INFO L130 PetriNetUnfolder]: 1597/2616 cut-off events. [2023-08-30 08:50:41,507 INFO L131 PetriNetUnfolder]: For 3640/3640 co-relation queries the response was YES. [2023-08-30 08:50:41,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8474 conditions, 2616 events. 1597/2616 cut-off events. For 3640/3640 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 13917 event pairs, 558 based on Foata normal form. 40/2334 useless extension candidates. Maximal degree in co-relation 8314. Up to 1768 conditions per place. [2023-08-30 08:50:41,526 INFO L137 encePairwiseOnDemand]: 253/266 looper letters, 112 selfloop transitions, 20 changer transitions 0/133 dead transitions. [2023-08-30 08:50:41,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 133 transitions, 1206 flow [2023-08-30 08:50:41,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:41,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:41,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 801 transitions. [2023-08-30 08:50:41,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018796992481203 [2023-08-30 08:50:41,530 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 801 transitions. [2023-08-30 08:50:41,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 801 transitions. [2023-08-30 08:50:41,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:41,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 801 transitions. [2023-08-30 08:50:41,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,535 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,535 INFO L175 Difference]: Start difference. First operand has 80 places, 89 transitions, 719 flow. Second operand 6 states and 801 transitions. [2023-08-30 08:50:41,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 133 transitions, 1206 flow [2023-08-30 08:50:41,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 133 transitions, 1157 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:41,548 INFO L231 Difference]: Finished difference. Result has 83 places, 99 transitions, 815 flow [2023-08-30 08:50:41,549 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=815, PETRI_PLACES=83, PETRI_TRANSITIONS=99} [2023-08-30 08:50:41,551 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 44 predicate places. [2023-08-30 08:50:41,551 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 99 transitions, 815 flow [2023-08-30 08:50:41,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:41,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:41,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 08:50:41,552 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 08:50:41,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:41,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1829229238, now seen corresponding path program 2 times [2023-08-30 08:50:41,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:41,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345280282] [2023-08-30 08:50:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:41,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:42,129 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 08:50:42,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:42,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345280282] [2023-08-30 08:50:42,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345280282] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:42,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:42,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:42,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386679150] [2023-08-30 08:50:42,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:42,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:42,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:42,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:42,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:42,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:50:42,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 99 transitions, 815 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:42,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:50:42,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:42,975 INFO L130 PetriNetUnfolder]: 1621/2652 cut-off events. [2023-08-30 08:50:42,975 INFO L131 PetriNetUnfolder]: For 5618/5618 co-relation queries the response was YES. [2023-08-30 08:50:42,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9991 conditions, 2652 events. 1621/2652 cut-off events. For 5618/5618 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 13917 event pairs, 747 based on Foata normal form. 4/2334 useless extension candidates. Maximal degree in co-relation 9029. Up to 2601 conditions per place. [2023-08-30 08:50:42,992 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 87 selfloop transitions, 35 changer transitions 0/123 dead transitions. [2023-08-30 08:50:42,992 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 123 transitions, 1255 flow [2023-08-30 08:50:42,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:50:42,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:50:42,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1009 transitions. [2023-08-30 08:50:42,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741541353383459 [2023-08-30 08:50:42,996 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1009 transitions. [2023-08-30 08:50:42,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1009 transitions. [2023-08-30 08:50:42,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:42,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1009 transitions. [2023-08-30 08:50:42,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 126.125) internal successors, (1009), 8 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,002 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,002 INFO L175 Difference]: Start difference. First operand has 83 places, 99 transitions, 815 flow. Second operand 8 states and 1009 transitions. [2023-08-30 08:50:43,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 123 transitions, 1255 flow [2023-08-30 08:50:43,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 123 transitions, 1241 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:43,017 INFO L231 Difference]: Finished difference. Result has 91 places, 115 transitions, 1088 flow [2023-08-30 08:50:43,017 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1088, PETRI_PLACES=91, PETRI_TRANSITIONS=115} [2023-08-30 08:50:43,018 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 52 predicate places. [2023-08-30 08:50:43,018 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 115 transitions, 1088 flow [2023-08-30 08:50:43,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:43,019 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:43,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 08:50:43,019 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 08:50:43,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:43,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1830411268, now seen corresponding path program 3 times [2023-08-30 08:50:43,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:43,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270342531] [2023-08-30 08:50:43,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:43,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:43,554 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 08:50:43,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:43,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270342531] [2023-08-30 08:50:43,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270342531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:43,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:43,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:43,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763044188] [2023-08-30 08:50:43,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:43,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:43,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:43,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:43,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:43,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:50:43,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 115 transitions, 1088 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:43,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:50:43,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:44,505 INFO L130 PetriNetUnfolder]: 1633/2670 cut-off events. [2023-08-30 08:50:44,506 INFO L131 PetriNetUnfolder]: For 6951/6951 co-relation queries the response was YES. [2023-08-30 08:50:44,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10831 conditions, 2670 events. 1633/2670 cut-off events. For 6951/6951 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 14014 event pairs, 750 based on Foata normal form. 4/2352 useless extension candidates. Maximal degree in co-relation 9524. Up to 2603 conditions per place. [2023-08-30 08:50:44,522 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 84 selfloop transitions, 46 changer transitions 0/131 dead transitions. [2023-08-30 08:50:44,523 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 131 transitions, 1470 flow [2023-08-30 08:50:44,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:50:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:50:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1009 transitions. [2023-08-30 08:50:44,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4741541353383459 [2023-08-30 08:50:44,526 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1009 transitions. [2023-08-30 08:50:44,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1009 transitions. [2023-08-30 08:50:44,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:44,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1009 transitions. [2023-08-30 08:50:44,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 126.125) internal successors, (1009), 8 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,533 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,533 INFO L175 Difference]: Start difference. First operand has 91 places, 115 transitions, 1088 flow. Second operand 8 states and 1009 transitions. [2023-08-30 08:50:44,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 131 transitions, 1470 flow [2023-08-30 08:50:44,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 131 transitions, 1405 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:44,560 INFO L231 Difference]: Finished difference. Result has 97 places, 123 transitions, 1246 flow [2023-08-30 08:50:44,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1027, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1246, PETRI_PLACES=97, PETRI_TRANSITIONS=123} [2023-08-30 08:50:44,562 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 58 predicate places. [2023-08-30 08:50:44,562 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 123 transitions, 1246 flow [2023-08-30 08:50:44,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,563 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:44,563 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:44,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 08:50:44,563 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 08:50:44,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash -639593780, now seen corresponding path program 1 times [2023-08-30 08:50:44,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:44,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261899538] [2023-08-30 08:50:44,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:44,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:45,070 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 08:50:45,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:45,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261899538] [2023-08-30 08:50:45,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261899538] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:45,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:45,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:45,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935566605] [2023-08-30 08:50:45,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:45,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:45,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:45,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:45,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:45,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:50:45,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 123 transitions, 1246 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:45,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:50:45,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:46,053 INFO L130 PetriNetUnfolder]: 1655/2703 cut-off events. [2023-08-30 08:50:46,054 INFO L131 PetriNetUnfolder]: For 8729/8729 co-relation queries the response was YES. [2023-08-30 08:50:46,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11713 conditions, 2703 events. 1655/2703 cut-off events. For 8729/8729 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 14187 event pairs, 912 based on Foata normal form. 4/2385 useless extension candidates. Maximal degree in co-relation 10666. Up to 2660 conditions per place. [2023-08-30 08:50:46,069 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 106 selfloop transitions, 38 changer transitions 0/145 dead transitions. [2023-08-30 08:50:46,069 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 145 transitions, 1767 flow [2023-08-30 08:50:46,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:50:46,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:50:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1004 transitions. [2023-08-30 08:50:46,073 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4718045112781955 [2023-08-30 08:50:46,073 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1004 transitions. [2023-08-30 08:50:46,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1004 transitions. [2023-08-30 08:50:46,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:46,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1004 transitions. [2023-08-30 08:50:46,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 125.5) internal successors, (1004), 8 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,080 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,080 INFO L175 Difference]: Start difference. First operand has 97 places, 123 transitions, 1246 flow. Second operand 8 states and 1004 transitions. [2023-08-30 08:50:46,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 145 transitions, 1767 flow [2023-08-30 08:50:46,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 145 transitions, 1696 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:46,104 INFO L231 Difference]: Finished difference. Result has 103 places, 139 transitions, 1506 flow [2023-08-30 08:50:46,104 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1189, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1506, PETRI_PLACES=103, PETRI_TRANSITIONS=139} [2023-08-30 08:50:46,105 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 64 predicate places. [2023-08-30 08:50:46,105 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 139 transitions, 1506 flow [2023-08-30 08:50:46,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,106 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:46,106 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:46,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 08:50:46,106 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:46,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:46,107 INFO L85 PathProgramCache]: Analyzing trace with hash -647176256, now seen corresponding path program 1 times [2023-08-30 08:50:46,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:46,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241771545] [2023-08-30 08:50:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:46,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:46,308 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 08:50:46,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:46,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241771545] [2023-08-30 08:50:46,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241771545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:46,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:46,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:46,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693726218] [2023-08-30 08:50:46,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:46,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:46,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:46,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:46,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:46,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 08:50:46,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 139 transitions, 1506 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:46,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 08:50:46,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:47,076 INFO L130 PetriNetUnfolder]: 2216/3584 cut-off events. [2023-08-30 08:50:47,076 INFO L131 PetriNetUnfolder]: For 15061/15061 co-relation queries the response was YES. [2023-08-30 08:50:47,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16094 conditions, 3584 events. 2216/3584 cut-off events. For 15061/15061 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 20061 event pairs, 548 based on Foata normal form. 69/3250 useless extension candidates. Maximal degree in co-relation 15403. Up to 2403 conditions per place. [2023-08-30 08:50:47,102 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 153 selfloop transitions, 50 changer transitions 0/204 dead transitions. [2023-08-30 08:50:47,102 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 204 transitions, 2327 flow [2023-08-30 08:50:47,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:50:47,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:50:47,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 936 transitions. [2023-08-30 08:50:47,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5026852846401718 [2023-08-30 08:50:47,106 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 936 transitions. [2023-08-30 08:50:47,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 936 transitions. [2023-08-30 08:50:47,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:47,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 936 transitions. [2023-08-30 08:50:47,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 133.71428571428572) internal successors, (936), 7 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,111 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,111 INFO L175 Difference]: Start difference. First operand has 103 places, 139 transitions, 1506 flow. Second operand 7 states and 936 transitions. [2023-08-30 08:50:47,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 204 transitions, 2327 flow [2023-08-30 08:50:47,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 204 transitions, 2247 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:47,156 INFO L231 Difference]: Finished difference. Result has 109 places, 170 transitions, 1902 flow [2023-08-30 08:50:47,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1426, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1902, PETRI_PLACES=109, PETRI_TRANSITIONS=170} [2023-08-30 08:50:47,157 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 70 predicate places. [2023-08-30 08:50:47,157 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 170 transitions, 1902 flow [2023-08-30 08:50:47,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:47,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:47,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 08:50:47,158 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:47,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash -636018860, now seen corresponding path program 2 times [2023-08-30 08:50:47,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:47,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27066978] [2023-08-30 08:50:47,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:47,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:47,632 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 08:50:47,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:47,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27066978] [2023-08-30 08:50:47,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27066978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:47,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:47,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:47,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379203070] [2023-08-30 08:50:47,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:47,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:47,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:47,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:47,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:47,930 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:50:47,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 170 transitions, 1902 flow. Second operand has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:47,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:50:47,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:48,875 INFO L130 PetriNetUnfolder]: 2196/3554 cut-off events. [2023-08-30 08:50:48,876 INFO L131 PetriNetUnfolder]: For 21763/21763 co-relation queries the response was YES. [2023-08-30 08:50:48,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18751 conditions, 3554 events. 2196/3554 cut-off events. For 21763/21763 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 19865 event pairs, 1022 based on Foata normal form. 4/3163 useless extension candidates. Maximal degree in co-relation 18456. Up to 3504 conditions per place. [2023-08-30 08:50:48,905 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 137 selfloop transitions, 53 changer transitions 0/191 dead transitions. [2023-08-30 08:50:48,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 191 transitions, 2512 flow [2023-08-30 08:50:48,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:50:48,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:50:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1370 transitions. [2023-08-30 08:50:48,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46821599453178403 [2023-08-30 08:50:48,913 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1370 transitions. [2023-08-30 08:50:48,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1370 transitions. [2023-08-30 08:50:48,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:48,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1370 transitions. [2023-08-30 08:50:48,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,933 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,934 INFO L175 Difference]: Start difference. First operand has 109 places, 170 transitions, 1902 flow. Second operand 11 states and 1370 transitions. [2023-08-30 08:50:48,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 191 transitions, 2512 flow [2023-08-30 08:50:49,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 191 transitions, 2454 flow, removed 26 selfloop flow, removed 2 redundant places. [2023-08-30 08:50:49,035 INFO L231 Difference]: Finished difference. Result has 121 places, 186 transitions, 2236 flow [2023-08-30 08:50:49,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1844, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2236, PETRI_PLACES=121, PETRI_TRANSITIONS=186} [2023-08-30 08:50:49,037 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 82 predicate places. [2023-08-30 08:50:49,037 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 186 transitions, 2236 flow [2023-08-30 08:50:49,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.9) internal successors, (1189), 10 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,038 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:49,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:49,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 08:50:49,038 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:49,038 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:49,039 INFO L85 PathProgramCache]: Analyzing trace with hash -647171263, now seen corresponding path program 2 times [2023-08-30 08:50:49,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:49,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472937116] [2023-08-30 08:50:49,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:49,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:49,232 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 08:50:49,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:49,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472937116] [2023-08-30 08:50:49,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472937116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:49,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:49,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:49,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874678372] [2023-08-30 08:50:49,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:49,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:49,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:49,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:49,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:49,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 266 [2023-08-30 08:50:49,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 186 transitions, 2236 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:49,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 266 [2023-08-30 08:50:49,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:50,001 INFO L130 PetriNetUnfolder]: 2454/3963 cut-off events. [2023-08-30 08:50:50,002 INFO L131 PetriNetUnfolder]: For 25533/25533 co-relation queries the response was YES. [2023-08-30 08:50:50,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21159 conditions, 3963 events. 2454/3963 cut-off events. For 25533/25533 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 22883 event pairs, 530 based on Foata normal form. 40/3585 useless extension candidates. Maximal degree in co-relation 20723. Up to 2593 conditions per place. [2023-08-30 08:50:50,036 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 169 selfloop transitions, 67 changer transitions 0/237 dead transitions. [2023-08-30 08:50:50,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 237 transitions, 3157 flow [2023-08-30 08:50:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:50:50,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:50:50,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 927 transitions. [2023-08-30 08:50:50,039 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49785177228786254 [2023-08-30 08:50:50,039 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 927 transitions. [2023-08-30 08:50:50,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 927 transitions. [2023-08-30 08:50:50,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:50,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 927 transitions. [2023-08-30 08:50:50,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 132.42857142857142) internal successors, (927), 7 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,045 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 266.0) internal successors, (2128), 8 states have internal predecessors, (2128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,045 INFO L175 Difference]: Start difference. First operand has 121 places, 186 transitions, 2236 flow. Second operand 7 states and 927 transitions. [2023-08-30 08:50:50,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 237 transitions, 3157 flow [2023-08-30 08:50:50,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 237 transitions, 3076 flow, removed 33 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:50,116 INFO L231 Difference]: Finished difference. Result has 126 places, 212 transitions, 2639 flow [2023-08-30 08:50:50,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2155, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2639, PETRI_PLACES=126, PETRI_TRANSITIONS=212} [2023-08-30 08:50:50,116 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 87 predicate places. [2023-08-30 08:50:50,117 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 212 transitions, 2639 flow [2023-08-30 08:50:50,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:50,117 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:50,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 08:50:50,118 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 08:50:50,118 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:50,118 INFO L85 PathProgramCache]: Analyzing trace with hash -641669726, now seen corresponding path program 2 times [2023-08-30 08:50:50,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:50,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116841722] [2023-08-30 08:50:50,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:50,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:50,305 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 08:50:50,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:50,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116841722] [2023-08-30 08:50:50,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116841722] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:50,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:50,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:50,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747842006] [2023-08-30 08:50:50,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:50,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:50,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:50,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:50,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:50,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 266 [2023-08-30 08:50:50,450 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 212 transitions, 2639 flow. Second operand has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:50,450 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 266 [2023-08-30 08:50:50,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:51,059 INFO L130 PetriNetUnfolder]: 2501/4091 cut-off events. [2023-08-30 08:50:51,059 INFO L131 PetriNetUnfolder]: For 35084/35084 co-relation queries the response was YES. [2023-08-30 08:50:51,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23212 conditions, 4091 events. 2501/4091 cut-off events. For 35084/35084 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 23950 event pairs, 626 based on Foata normal form. 96/3816 useless extension candidates. Maximal degree in co-relation 23102. Up to 2728 conditions per place. [2023-08-30 08:50:51,083 INFO L137 encePairwiseOnDemand]: 253/266 looper letters, 227 selfloop transitions, 73 changer transitions 0/301 dead transitions. [2023-08-30 08:50:51,083 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 301 transitions, 4143 flow [2023-08-30 08:50:51,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:51,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:51,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 806 transitions. [2023-08-30 08:50:51,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050125313283208 [2023-08-30 08:50:51,091 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 806 transitions. [2023-08-30 08:50:51,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 806 transitions. [2023-08-30 08:50:51,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:51,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 806 transitions. [2023-08-30 08:50:51,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.33333333333334) internal successors, (806), 6 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,096 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 266.0) internal successors, (1862), 7 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,096 INFO L175 Difference]: Start difference. First operand has 126 places, 212 transitions, 2639 flow. Second operand 6 states and 806 transitions. [2023-08-30 08:50:51,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 301 transitions, 4143 flow [2023-08-30 08:50:51,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 301 transitions, 4040 flow, removed 50 selfloop flow, removed 2 redundant places. [2023-08-30 08:50:51,261 INFO L231 Difference]: Finished difference. Result has 131 places, 251 transitions, 3378 flow [2023-08-30 08:50:51,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=2564, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3378, PETRI_PLACES=131, PETRI_TRANSITIONS=251} [2023-08-30 08:50:51,262 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 92 predicate places. [2023-08-30 08:50:51,262 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 251 transitions, 3378 flow [2023-08-30 08:50:51,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 123.5) internal successors, (741), 6 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:51,263 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:51,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 08:50:51,263 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 08:50:51,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:51,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2090594741, now seen corresponding path program 1 times [2023-08-30 08:50:51,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:51,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073017812] [2023-08-30 08:50:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:51,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:51,863 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 08:50:51,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:51,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073017812] [2023-08-30 08:50:51,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073017812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:51,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:51,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:50:51,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905888637] [2023-08-30 08:50:51,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:51,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:50:51,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:51,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:50:51,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:50:52,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:50:52,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 251 transitions, 3378 flow. Second operand has 11 states, 11 states have (on average 118.9090909090909) internal successors, (1308), 11 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:52,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:50:52,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:53,124 INFO L130 PetriNetUnfolder]: 2559/4178 cut-off events. [2023-08-30 08:50:53,124 INFO L131 PetriNetUnfolder]: For 39825/39825 co-relation queries the response was YES. [2023-08-30 08:50:53,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25557 conditions, 4178 events. 2559/4178 cut-off events. For 39825/39825 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 24491 event pairs, 1005 based on Foata normal form. 8/3815 useless extension candidates. Maximal degree in co-relation 25443. Up to 4018 conditions per place. [2023-08-30 08:50:53,150 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 190 selfloop transitions, 111 changer transitions 0/302 dead transitions. [2023-08-30 08:50:53,150 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 302 transitions, 4636 flow [2023-08-30 08:50:53,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:50:53,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:50:53,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1269 transitions. [2023-08-30 08:50:53,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4770676691729323 [2023-08-30 08:50:53,155 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1269 transitions. [2023-08-30 08:50:53,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1269 transitions. [2023-08-30 08:50:53,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:53,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1269 transitions. [2023-08-30 08:50:53,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.9) internal successors, (1269), 10 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,162 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,162 INFO L175 Difference]: Start difference. First operand has 131 places, 251 transitions, 3378 flow. Second operand 10 states and 1269 transitions. [2023-08-30 08:50:53,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 302 transitions, 4636 flow [2023-08-30 08:50:53,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 302 transitions, 4601 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:53,290 INFO L231 Difference]: Finished difference. Result has 141 places, 289 transitions, 4275 flow [2023-08-30 08:50:53,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3349, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4275, PETRI_PLACES=141, PETRI_TRANSITIONS=289} [2023-08-30 08:50:53,291 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 102 predicate places. [2023-08-30 08:50:53,291 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 289 transitions, 4275 flow [2023-08-30 08:50:53,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.9090909090909) internal successors, (1308), 11 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:53,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:53,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 08:50:53,292 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 08:50:53,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:53,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1588919953, now seen corresponding path program 2 times [2023-08-30 08:50:53,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:53,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049485230] [2023-08-30 08:50:53,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:53,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:53,902 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 08:50:53,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:53,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049485230] [2023-08-30 08:50:53,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049485230] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:53,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:53,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:50:53,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519019359] [2023-08-30 08:50:53,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:53,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:50:53,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:53,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:50:53,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:50:54,259 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:50:54,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 289 transitions, 4275 flow. Second operand has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:54,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:54,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:50:54,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:55,413 INFO L130 PetriNetUnfolder]: 2642/4304 cut-off events. [2023-08-30 08:50:55,413 INFO L131 PetriNetUnfolder]: For 47527/47527 co-relation queries the response was YES. [2023-08-30 08:50:55,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27929 conditions, 4304 events. 2642/4304 cut-off events. For 47527/47527 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 25167 event pairs, 970 based on Foata normal form. 8/3941 useless extension candidates. Maximal degree in co-relation 27490. Up to 4148 conditions per place. [2023-08-30 08:50:55,436 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 220 selfloop transitions, 142 changer transitions 0/363 dead transitions. [2023-08-30 08:50:55,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 363 transitions, 6160 flow [2023-08-30 08:50:55,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:50:55,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:50:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1493 transitions. [2023-08-30 08:50:55,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46773182957393483 [2023-08-30 08:50:55,441 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1493 transitions. [2023-08-30 08:50:55,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1493 transitions. [2023-08-30 08:50:55,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:55,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1493 transitions. [2023-08-30 08:50:55,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 124.41666666666667) internal successors, (1493), 12 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,448 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,449 INFO L175 Difference]: Start difference. First operand has 141 places, 289 transitions, 4275 flow. Second operand 12 states and 1493 transitions. [2023-08-30 08:50:55,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 363 transitions, 6160 flow [2023-08-30 08:50:55,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 363 transitions, 6005 flow, removed 58 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:55,603 INFO L231 Difference]: Finished difference. Result has 155 places, 352 transitions, 5717 flow [2023-08-30 08:50:55,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=4145, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5717, PETRI_PLACES=155, PETRI_TRANSITIONS=352} [2023-08-30 08:50:55,604 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 116 predicate places. [2023-08-30 08:50:55,605 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 352 transitions, 5717 flow [2023-08-30 08:50:55,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:55,605 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:55,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 08:50:55,606 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:55,606 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:55,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1592460463, now seen corresponding path program 3 times [2023-08-30 08:50:55,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:55,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218195031] [2023-08-30 08:50:55,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:55,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:56,114 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 08:50:56,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:56,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218195031] [2023-08-30 08:50:56,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218195031] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:56,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:56,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:50:56,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554768092] [2023-08-30 08:50:56,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:56,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:50:56,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:56,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:50:56,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:50:56,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:50:56,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 352 transitions, 5717 flow. Second operand has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:56,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:50:56,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:57,528 INFO L130 PetriNetUnfolder]: 2602/4234 cut-off events. [2023-08-30 08:50:57,528 INFO L131 PetriNetUnfolder]: For 52954/52954 co-relation queries the response was YES. [2023-08-30 08:50:57,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28720 conditions, 4234 events. 2602/4234 cut-off events. For 52954/52954 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 24752 event pairs, 1017 based on Foata normal form. 8/3891 useless extension candidates. Maximal degree in co-relation 27888. Up to 4097 conditions per place. [2023-08-30 08:50:57,556 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 252 selfloop transitions, 129 changer transitions 0/382 dead transitions. [2023-08-30 08:50:57,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 382 transitions, 6901 flow [2023-08-30 08:50:57,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:50:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:50:57,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1495 transitions. [2023-08-30 08:50:57,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4683583959899749 [2023-08-30 08:50:57,560 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1495 transitions. [2023-08-30 08:50:57,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1495 transitions. [2023-08-30 08:50:57,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:57,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1495 transitions. [2023-08-30 08:50:57,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 124.58333333333333) internal successors, (1495), 12 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,566 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,566 INFO L175 Difference]: Start difference. First operand has 155 places, 352 transitions, 5717 flow. Second operand 12 states and 1495 transitions. [2023-08-30 08:50:57,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 382 transitions, 6901 flow [2023-08-30 08:50:57,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 382 transitions, 6757 flow, removed 51 selfloop flow, removed 4 redundant places. [2023-08-30 08:50:57,721 INFO L231 Difference]: Finished difference. Result has 166 places, 370 transitions, 6308 flow [2023-08-30 08:50:57,721 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=5578, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6308, PETRI_PLACES=166, PETRI_TRANSITIONS=370} [2023-08-30 08:50:57,722 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 127 predicate places. [2023-08-30 08:50:57,722 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 370 transitions, 6308 flow [2023-08-30 08:50:57,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 117.9090909090909) internal successors, (1297), 11 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:57,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:57,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 08:50:57,723 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:57,723 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:57,723 INFO L85 PathProgramCache]: Analyzing trace with hash 649032021, now seen corresponding path program 1 times [2023-08-30 08:50:57,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:57,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209029190] [2023-08-30 08:50:57,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:57,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:58,060 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 08:50:58,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:58,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209029190] [2023-08-30 08:50:58,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209029190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:58,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:58,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:58,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736276061] [2023-08-30 08:50:58,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:58,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:58,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:58,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:58,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:58,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 08:50:58,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 370 transitions, 6308 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:58,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 08:50:58,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:59,547 INFO L130 PetriNetUnfolder]: 4172/6986 cut-off events. [2023-08-30 08:50:59,547 INFO L131 PetriNetUnfolder]: For 94739/94750 co-relation queries the response was YES. [2023-08-30 08:50:59,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47889 conditions, 6986 events. 4172/6986 cut-off events. For 94739/94750 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 47331 event pairs, 1094 based on Foata normal form. 0/6340 useless extension candidates. Maximal degree in co-relation 47212. Up to 2347 conditions per place. [2023-08-30 08:50:59,594 INFO L137 encePairwiseOnDemand]: 255/266 looper letters, 426 selfloop transitions, 109 changer transitions 5/588 dead transitions. [2023-08-30 08:50:59,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 588 transitions, 10204 flow [2023-08-30 08:50:59,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:50:59,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:50:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1275 transitions. [2023-08-30 08:50:59,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5325814536340853 [2023-08-30 08:50:59,596 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1275 transitions. [2023-08-30 08:50:59,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1275 transitions. [2023-08-30 08:50:59,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:59,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1275 transitions. [2023-08-30 08:50:59,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 141.66666666666666) internal successors, (1275), 9 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,601 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,601 INFO L175 Difference]: Start difference. First operand has 166 places, 370 transitions, 6308 flow. Second operand 9 states and 1275 transitions. [2023-08-30 08:50:59,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 588 transitions, 10204 flow [2023-08-30 08:50:59,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 588 transitions, 10065 flow, removed 62 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:59,872 INFO L231 Difference]: Finished difference. Result has 175 places, 408 transitions, 7324 flow [2023-08-30 08:50:59,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=6173, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7324, PETRI_PLACES=175, PETRI_TRANSITIONS=408} [2023-08-30 08:50:59,873 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 136 predicate places. [2023-08-30 08:50:59,873 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 408 transitions, 7324 flow [2023-08-30 08:50:59,873 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 08:50:59,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:59,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:59,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 08:50:59,874 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 08:50:59,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:59,874 INFO L85 PathProgramCache]: Analyzing trace with hash 645920242, now seen corresponding path program 1 times [2023-08-30 08:50:59,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:59,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559436958] [2023-08-30 08:50:59,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:59,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:00,556 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 08:51:00,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:00,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559436958] [2023-08-30 08:51:00,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559436958] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:00,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:00,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822180218] [2023-08-30 08:51:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:00,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:00,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:00,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:00,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:01,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:51:01,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 408 transitions, 7324 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:01,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:01,119 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:51:01,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:03,249 INFO L130 PetriNetUnfolder]: 4582/7595 cut-off events. [2023-08-30 08:51:03,249 INFO L131 PetriNetUnfolder]: For 171677/171677 co-relation queries the response was YES. [2023-08-30 08:51:03,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55207 conditions, 7595 events. 4582/7595 cut-off events. For 171677/171677 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 50716 event pairs, 1347 based on Foata normal form. 8/7291 useless extension candidates. Maximal degree in co-relation 54396. Up to 6907 conditions per place. [2023-08-30 08:51:03,303 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 390 selfloop transitions, 142 changer transitions 20/553 dead transitions. [2023-08-30 08:51:03,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 553 transitions, 10791 flow [2023-08-30 08:51:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 08:51:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 08:51:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2712 transitions. [2023-08-30 08:51:03,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4634313055365687 [2023-08-30 08:51:03,307 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2712 transitions. [2023-08-30 08:51:03,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2712 transitions. [2023-08-30 08:51:03,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:03,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2712 transitions. [2023-08-30 08:51:03,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 123.27272727272727) internal successors, (2712), 22 states have internal predecessors, (2712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,318 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,318 INFO L175 Difference]: Start difference. First operand has 175 places, 408 transitions, 7324 flow. Second operand 22 states and 2712 transitions. [2023-08-30 08:51:03,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 553 transitions, 10791 flow [2023-08-30 08:51:03,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 553 transitions, 10766 flow, removed 5 selfloop flow, removed 2 redundant places. [2023-08-30 08:51:03,723 INFO L231 Difference]: Finished difference. Result has 201 places, 478 transitions, 8993 flow [2023-08-30 08:51:03,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=7302, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8993, PETRI_PLACES=201, PETRI_TRANSITIONS=478} [2023-08-30 08:51:03,723 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 162 predicate places. [2023-08-30 08:51:03,723 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 478 transitions, 8993 flow [2023-08-30 08:51:03,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:03,724 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:03,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 08:51:03,724 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 08:51:03,725 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1145301042, now seen corresponding path program 2 times [2023-08-30 08:51:03,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:03,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005534386] [2023-08-30 08:51:03,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:03,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:04,313 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 08:51:04,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:04,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005534386] [2023-08-30 08:51:04,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005534386] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:04,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:04,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:04,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013229819] [2023-08-30 08:51:04,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:04,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:04,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:04,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:04,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:04,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:51:04,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 478 transitions, 8993 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:04,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:51:04,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:06,843 INFO L130 PetriNetUnfolder]: 4572/7593 cut-off events. [2023-08-30 08:51:06,843 INFO L131 PetriNetUnfolder]: For 189391/189391 co-relation queries the response was YES. [2023-08-30 08:51:06,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57077 conditions, 7593 events. 4572/7593 cut-off events. For 189391/189391 co-relation queries the response was YES. Maximal size of possible extension queue 501. Compared 50818 event pairs, 1672 based on Foata normal form. 6/7287 useless extension candidates. Maximal degree in co-relation 56936. Up to 6974 conditions per place. [2023-08-30 08:51:07,018 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 378 selfloop transitions, 153 changer transitions 4/536 dead transitions. [2023-08-30 08:51:07,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 536 transitions, 10789 flow [2023-08-30 08:51:07,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 08:51:07,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 08:51:07,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2343 transitions. [2023-08-30 08:51:07,034 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46359319351009104 [2023-08-30 08:51:07,034 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2343 transitions. [2023-08-30 08:51:07,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2343 transitions. [2023-08-30 08:51:07,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:07,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2343 transitions. [2023-08-30 08:51:07,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 123.3157894736842) internal successors, (2343), 19 states have internal predecessors, (2343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 266.0) internal successors, (5320), 20 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,046 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 266.0) internal successors, (5320), 20 states have internal predecessors, (5320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,046 INFO L175 Difference]: Start difference. First operand has 201 places, 478 transitions, 8993 flow. Second operand 19 states and 2343 transitions. [2023-08-30 08:51:07,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 536 transitions, 10789 flow [2023-08-30 08:51:07,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 536 transitions, 10376 flow, removed 122 selfloop flow, removed 7 redundant places. [2023-08-30 08:51:07,703 INFO L231 Difference]: Finished difference. Result has 218 places, 498 transitions, 9400 flow [2023-08-30 08:51:07,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=8618, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=136, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=9400, PETRI_PLACES=218, PETRI_TRANSITIONS=498} [2023-08-30 08:51:07,704 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 179 predicate places. [2023-08-30 08:51:07,704 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 498 transitions, 9400 flow [2023-08-30 08:51:07,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:07,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:07,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 08:51:07,705 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 08:51:07,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:07,706 INFO L85 PathProgramCache]: Analyzing trace with hash -431228113, now seen corresponding path program 2 times [2023-08-30 08:51:07,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:07,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934509108] [2023-08-30 08:51:07,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:07,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:08,124 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 08:51:08,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:08,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934509108] [2023-08-30 08:51:08,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934509108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:08,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:08,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:08,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945637263] [2023-08-30 08:51:08,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:08,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:51:08,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:08,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:51:08,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:51:08,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 266 [2023-08-30 08:51:08,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 498 transitions, 9400 flow. Second operand has 9 states, 9 states have (on average 120.22222222222223) internal successors, (1082), 9 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:08,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:08,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 266 [2023-08-30 08:51:08,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:11,122 INFO L130 PetriNetUnfolder]: 6580/11087 cut-off events. [2023-08-30 08:51:11,122 INFO L131 PetriNetUnfolder]: For 303408/303408 co-relation queries the response was YES. [2023-08-30 08:51:11,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84616 conditions, 11087 events. 6580/11087 cut-off events. For 303408/303408 co-relation queries the response was YES. Maximal size of possible extension queue 739. Compared 80738 event pairs, 1247 based on Foata normal form. 22/10731 useless extension candidates. Maximal degree in co-relation 83509. Up to 4046 conditions per place. [2023-08-30 08:51:11,200 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 415 selfloop transitions, 368 changer transitions 22/806 dead transitions. [2023-08-30 08:51:11,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 806 transitions, 15837 flow [2023-08-30 08:51:11,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:11,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1729 transitions. [2023-08-30 08:51:11,203 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-30 08:51:11,203 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1729 transitions. [2023-08-30 08:51:11,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1729 transitions. [2023-08-30 08:51:11,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:11,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1729 transitions. [2023-08-30 08:51:11,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 133.0) internal successors, (1729), 13 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 266.0) internal successors, (3724), 14 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,208 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 266.0) internal successors, (3724), 14 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,208 INFO L175 Difference]: Start difference. First operand has 218 places, 498 transitions, 9400 flow. Second operand 13 states and 1729 transitions. [2023-08-30 08:51:11,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 806 transitions, 15837 flow [2023-08-30 08:51:12,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 806 transitions, 15548 flow, removed 66 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:12,207 INFO L231 Difference]: Finished difference. Result has 232 places, 654 transitions, 13713 flow [2023-08-30 08:51:12,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=9151, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=498, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=234, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13713, PETRI_PLACES=232, PETRI_TRANSITIONS=654} [2023-08-30 08:51:12,208 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 193 predicate places. [2023-08-30 08:51:12,208 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 654 transitions, 13713 flow [2023-08-30 08:51:12,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 120.22222222222223) internal successors, (1082), 9 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:12,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:12,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:12,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 08:51:12,209 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 08:51:12,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:12,210 INFO L85 PathProgramCache]: Analyzing trace with hash -437179853, now seen corresponding path program 3 times [2023-08-30 08:51:12,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:12,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043336852] [2023-08-30 08:51:12,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:12,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:12,471 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 08:51:12,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:12,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043336852] [2023-08-30 08:51:12,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043336852] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:12,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:12,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:51:12,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125733856] [2023-08-30 08:51:12,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:12,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:51:12,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:12,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:51:12,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:51:12,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 08:51:12,645 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 654 transitions, 13713 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:12,645 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:12,645 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 08:51:12,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:16,291 INFO L130 PetriNetUnfolder]: 7838/13496 cut-off events. [2023-08-30 08:51:16,291 INFO L131 PetriNetUnfolder]: For 462945/463279 co-relation queries the response was YES. [2023-08-30 08:51:16,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111395 conditions, 13496 events. 7838/13496 cut-off events. For 462945/463279 co-relation queries the response was YES. Maximal size of possible extension queue 961. Compared 105682 event pairs, 2114 based on Foata normal form. 128/13026 useless extension candidates. Maximal degree in co-relation 109581. Up to 5908 conditions per place. [2023-08-30 08:51:16,399 INFO L137 encePairwiseOnDemand]: 255/266 looper letters, 606 selfloop transitions, 190 changer transitions 3/866 dead transitions. [2023-08-30 08:51:16,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 866 transitions, 19005 flow [2023-08-30 08:51:16,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:51:16,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:51:16,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1125 transitions. [2023-08-30 08:51:16,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5286654135338346 [2023-08-30 08:51:16,401 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1125 transitions. [2023-08-30 08:51:16,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1125 transitions. [2023-08-30 08:51:16,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:16,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1125 transitions. [2023-08-30 08:51:16,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 140.625) internal successors, (1125), 8 states have internal predecessors, (1125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,404 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 266.0) internal successors, (2394), 9 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,404 INFO L175 Difference]: Start difference. First operand has 232 places, 654 transitions, 13713 flow. Second operand 8 states and 1125 transitions. [2023-08-30 08:51:16,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 866 transitions, 19005 flow [2023-08-30 08:51:18,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 866 transitions, 18674 flow, removed 145 selfloop flow, removed 4 redundant places. [2023-08-30 08:51:18,304 INFO L231 Difference]: Finished difference. Result has 238 places, 702 transitions, 15452 flow [2023-08-30 08:51:18,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=13460, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=654, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=480, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=15452, PETRI_PLACES=238, PETRI_TRANSITIONS=702} [2023-08-30 08:51:18,304 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 199 predicate places. [2023-08-30 08:51:18,305 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 702 transitions, 15452 flow [2023-08-30 08:51:18,305 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 08:51:18,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:18,305 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:18,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 08:51:18,305 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:18,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1330336417, now seen corresponding path program 1 times [2023-08-30 08:51:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:18,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670880341] [2023-08-30 08:51:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:18,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:18,543 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 08:51:18,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:18,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670880341] [2023-08-30 08:51:18,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670880341] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:18,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:18,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:51:18,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58663705] [2023-08-30 08:51:18,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:18,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:51:18,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:18,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:51:18,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:51:18,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 08:51:18,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 702 transitions, 15452 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:18,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:18,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 08:51:18,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:22,578 INFO L130 PetriNetUnfolder]: 8007/13869 cut-off events. [2023-08-30 08:51:22,578 INFO L131 PetriNetUnfolder]: For 492571/492809 co-relation queries the response was YES. [2023-08-30 08:51:22,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115144 conditions, 13869 events. 8007/13869 cut-off events. For 492571/492809 co-relation queries the response was YES. Maximal size of possible extension queue 970. Compared 109646 event pairs, 2125 based on Foata normal form. 122/13400 useless extension candidates. Maximal degree in co-relation 113066. Up to 4236 conditions per place. [2023-08-30 08:51:22,704 INFO L137 encePairwiseOnDemand]: 254/266 looper letters, 671 selfloop transitions, 260 changer transitions 7/1005 dead transitions. [2023-08-30 08:51:22,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 1005 transitions, 22177 flow [2023-08-30 08:51:22,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:51:22,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:51:22,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1402 transitions. [2023-08-30 08:51:22,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5270676691729324 [2023-08-30 08:51:22,705 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1402 transitions. [2023-08-30 08:51:22,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1402 transitions. [2023-08-30 08:51:22,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:22,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1402 transitions. [2023-08-30 08:51:22,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 140.2) internal successors, (1402), 10 states have internal predecessors, (1402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,710 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,710 INFO L175 Difference]: Start difference. First operand has 238 places, 702 transitions, 15452 flow. Second operand 10 states and 1402 transitions. [2023-08-30 08:51:22,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 1005 transitions, 22177 flow [2023-08-30 08:51:24,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 1005 transitions, 21929 flow, removed 99 selfloop flow, removed 3 redundant places. [2023-08-30 08:51:24,979 INFO L231 Difference]: Finished difference. Result has 247 places, 759 transitions, 17390 flow [2023-08-30 08:51:24,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=15226, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=17390, PETRI_PLACES=247, PETRI_TRANSITIONS=759} [2023-08-30 08:51:24,980 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 208 predicate places. [2023-08-30 08:51:24,980 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 759 transitions, 17390 flow [2023-08-30 08:51:24,981 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 08:51:24,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:24,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:24,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 08:51:24,981 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:24,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1545937541, now seen corresponding path program 1 times [2023-08-30 08:51:24,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:24,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518765553] [2023-08-30 08:51:24,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:24,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:25,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:25,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518765553] [2023-08-30 08:51:25,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518765553] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:25,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:25,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:51:25,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199679846] [2023-08-30 08:51:25,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:25,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:51:25,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:25,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:51:25,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:51:26,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-08-30 08:51:26,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 759 transitions, 17390 flow. Second operand has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:26,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:26,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-08-30 08:51:26,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:31,370 INFO L130 PetriNetUnfolder]: 8583/14703 cut-off events. [2023-08-30 08:51:31,370 INFO L131 PetriNetUnfolder]: For 542615/542615 co-relation queries the response was YES. [2023-08-30 08:51:31,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124242 conditions, 14703 events. 8583/14703 cut-off events. For 542615/542615 co-relation queries the response was YES. Maximal size of possible extension queue 992. Compared 115178 event pairs, 3107 based on Foata normal form. 139/14328 useless extension candidates. Maximal degree in co-relation 118423. Up to 13167 conditions per place. [2023-08-30 08:51:31,505 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 614 selfloop transitions, 273 changer transitions 49/937 dead transitions. [2023-08-30 08:51:31,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 937 transitions, 23380 flow [2023-08-30 08:51:31,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 08:51:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 08:51:31,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2945 transitions. [2023-08-30 08:51:31,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46130952380952384 [2023-08-30 08:51:31,508 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2945 transitions. [2023-08-30 08:51:31,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2945 transitions. [2023-08-30 08:51:31,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:31,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2945 transitions. [2023-08-30 08:51:31,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 122.70833333333333) internal successors, (2945), 24 states have internal predecessors, (2945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,514 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,515 INFO L175 Difference]: Start difference. First operand has 247 places, 759 transitions, 17390 flow. Second operand 24 states and 2945 transitions. [2023-08-30 08:51:31,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 937 transitions, 23380 flow [2023-08-30 08:51:34,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 937 transitions, 23177 flow, removed 101 selfloop flow, removed 1 redundant places. [2023-08-30 08:51:34,136 INFO L231 Difference]: Finished difference. Result has 280 places, 791 transitions, 18917 flow [2023-08-30 08:51:34,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=17223, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=242, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=18917, PETRI_PLACES=280, PETRI_TRANSITIONS=791} [2023-08-30 08:51:34,137 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 241 predicate places. [2023-08-30 08:51:34,137 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 791 transitions, 18917 flow [2023-08-30 08:51:34,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:34,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:34,138 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:34,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 08:51:34,138 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 08:51:34,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:34,138 INFO L85 PathProgramCache]: Analyzing trace with hash -246887853, now seen corresponding path program 4 times [2023-08-30 08:51:34,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:34,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167573763] [2023-08-30 08:51:34,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:34,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:34,446 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 08:51:34,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:34,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167573763] [2023-08-30 08:51:34,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167573763] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:34,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:34,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:51:34,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233454901] [2023-08-30 08:51:34,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:34,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:51:34,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:34,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:51:34,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:51:34,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 08:51:34,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 791 transitions, 18917 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:34,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:34,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 08:51:34,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:39,071 INFO L130 PetriNetUnfolder]: 8452/14710 cut-off events. [2023-08-30 08:51:39,071 INFO L131 PetriNetUnfolder]: For 548667/549431 co-relation queries the response was YES. [2023-08-30 08:51:39,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126742 conditions, 14710 events. 8452/14710 cut-off events. For 548667/549431 co-relation queries the response was YES. Maximal size of possible extension queue 1039. Compared 118154 event pairs, 1900 based on Foata normal form. 33/14077 useless extension candidates. Maximal degree in co-relation 126439. Up to 4450 conditions per place. [2023-08-30 08:51:39,216 INFO L137 encePairwiseOnDemand]: 254/266 looper letters, 472 selfloop transitions, 375 changer transitions 20/948 dead transitions. [2023-08-30 08:51:39,216 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 948 transitions, 22961 flow [2023-08-30 08:51:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:51:39,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:51:39,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1657 transitions. [2023-08-30 08:51:39,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5191102756892231 [2023-08-30 08:51:39,218 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1657 transitions. [2023-08-30 08:51:39,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1657 transitions. [2023-08-30 08:51:39,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:39,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1657 transitions. [2023-08-30 08:51:39,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 138.08333333333334) internal successors, (1657), 12 states have internal predecessors, (1657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:39,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:39,221 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:39,221 INFO L175 Difference]: Start difference. First operand has 280 places, 791 transitions, 18917 flow. Second operand 12 states and 1657 transitions. [2023-08-30 08:51:39,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 948 transitions, 22961 flow [2023-08-30 08:51:42,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 948 transitions, 22771 flow, removed 49 selfloop flow, removed 8 redundant places. [2023-08-30 08:51:42,031 INFO L231 Difference]: Finished difference. Result has 283 places, 806 transitions, 19972 flow [2023-08-30 08:51:42,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=18668, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=789, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=359, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=428, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19972, PETRI_PLACES=283, PETRI_TRANSITIONS=806} [2023-08-30 08:51:42,032 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 244 predicate places. [2023-08-30 08:51:42,032 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 806 transitions, 19972 flow [2023-08-30 08:51:42,032 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 08:51:42,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:42,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:42,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 08:51:42,033 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 08:51:42,033 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:42,033 INFO L85 PathProgramCache]: Analyzing trace with hash -744050276, now seen corresponding path program 1 times [2023-08-30 08:51:42,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:42,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921178190] [2023-08-30 08:51:42,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:42,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:42,430 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 08:51:42,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:42,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921178190] [2023-08-30 08:51:42,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921178190] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:42,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:42,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:42,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579570019] [2023-08-30 08:51:42,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:42,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:42,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:42,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:42,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:51:42,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 806 transitions, 19972 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,704 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:42,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:51:42,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:47,078 INFO L130 PetriNetUnfolder]: 8803/15161 cut-off events. [2023-08-30 08:51:47,078 INFO L131 PetriNetUnfolder]: For 631717/631717 co-relation queries the response was YES. [2023-08-30 08:51:47,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132789 conditions, 15161 events. 8803/15161 cut-off events. For 631717/631717 co-relation queries the response was YES. Maximal size of possible extension queue 998. Compared 120136 event pairs, 1973 based on Foata normal form. 112/14733 useless extension candidates. Maximal degree in co-relation 132270. Up to 10114 conditions per place. [2023-08-30 08:51:47,290 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 617 selfloop transitions, 295 changer transitions 3/916 dead transitions. [2023-08-30 08:51:47,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 916 transitions, 23573 flow [2023-08-30 08:51:47,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:51:47,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:51:47,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1160 transitions. [2023-08-30 08:51:47,298 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48454469507101083 [2023-08-30 08:51:47,298 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1160 transitions. [2023-08-30 08:51:47,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1160 transitions. [2023-08-30 08:51:47,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:47,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1160 transitions. [2023-08-30 08:51:47,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 128.88888888888889) internal successors, (1160), 9 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,306 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:47,306 INFO L175 Difference]: Start difference. First operand has 283 places, 806 transitions, 19972 flow. Second operand 9 states and 1160 transitions. [2023-08-30 08:51:47,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 916 transitions, 23573 flow [2023-08-30 08:51:51,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 916 transitions, 23050 flow, removed 109 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:51,491 INFO L231 Difference]: Finished difference. Result has 286 places, 845 transitions, 21471 flow [2023-08-30 08:51:51,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=19375, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=803, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=21471, PETRI_PLACES=286, PETRI_TRANSITIONS=845} [2023-08-30 08:51:51,491 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 247 predicate places. [2023-08-30 08:51:51,492 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 845 transitions, 21471 flow [2023-08-30 08:51:51,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:51,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:51,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:51,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 08:51:51,492 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:51,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:51,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1863709713, now seen corresponding path program 1 times [2023-08-30 08:51:51,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:51,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582892380] [2023-08-30 08:51:51,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:51,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:51,780 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 08:51:51,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:51,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582892380] [2023-08-30 08:51:51,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582892380] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:51,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:51,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:51:51,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69521427] [2023-08-30 08:51:51,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:51,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:51:51,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:51,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:51:51,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:51:52,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 266 [2023-08-30 08:51:52,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 845 transitions, 21471 flow. Second operand has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:52,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:52,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 266 [2023-08-30 08:51:52,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:57,397 INFO L130 PetriNetUnfolder]: 8725/15034 cut-off events. [2023-08-30 08:51:57,397 INFO L131 PetriNetUnfolder]: For 640481/640481 co-relation queries the response was YES. [2023-08-30 08:51:57,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136202 conditions, 15034 events. 8725/15034 cut-off events. For 640481/640481 co-relation queries the response was YES. Maximal size of possible extension queue 980. Compared 119102 event pairs, 2801 based on Foata normal form. 111/14603 useless extension candidates. Maximal degree in co-relation 135890. Up to 6834 conditions per place. [2023-08-30 08:51:58,179 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 808 selfloop transitions, 245 changer transitions 7/1061 dead transitions. [2023-08-30 08:51:58,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1061 transitions, 27100 flow [2023-08-30 08:51:58,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:51:58,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:51:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1201 transitions. [2023-08-30 08:51:58,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5016708437761069 [2023-08-30 08:51:58,181 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1201 transitions. [2023-08-30 08:51:58,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1201 transitions. [2023-08-30 08:51:58,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:58,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1201 transitions. [2023-08-30 08:51:58,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 133.44444444444446) internal successors, (1201), 9 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:58,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:58,184 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:58,184 INFO L175 Difference]: Start difference. First operand has 286 places, 845 transitions, 21471 flow. Second operand 9 states and 1201 transitions. [2023-08-30 08:51:58,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1061 transitions, 27100 flow [2023-08-30 08:52:01,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 1061 transitions, 26874 flow, removed 82 selfloop flow, removed 5 redundant places. [2023-08-30 08:52:01,071 INFO L231 Difference]: Finished difference. Result has 293 places, 911 transitions, 23643 flow [2023-08-30 08:52:01,072 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=21255, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=845, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=627, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=23643, PETRI_PLACES=293, PETRI_TRANSITIONS=911} [2023-08-30 08:52:01,073 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 254 predicate places. [2023-08-30 08:52:01,073 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 911 transitions, 23643 flow [2023-08-30 08:52:01,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:01,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:01,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:01,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 08:52:01,074 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:01,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:01,074 INFO L85 PathProgramCache]: Analyzing trace with hash -246887852, now seen corresponding path program 3 times [2023-08-30 08:52:01,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:01,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017131947] [2023-08-30 08:52:01,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:01,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:01,992 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 08:52:01,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:01,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017131947] [2023-08-30 08:52:01,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017131947] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:01,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:01,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:52:01,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091204717] [2023-08-30 08:52:01,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:01,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:52:01,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:01,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:52:01,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:52:02,400 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:52:02,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 911 transitions, 23643 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:02,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:02,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:52:02,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:07,713 INFO L130 PetriNetUnfolder]: 8674/14984 cut-off events. [2023-08-30 08:52:07,713 INFO L131 PetriNetUnfolder]: For 626749/626749 co-relation queries the response was YES. [2023-08-30 08:52:07,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138961 conditions, 14984 events. 8674/14984 cut-off events. For 626749/626749 co-relation queries the response was YES. Maximal size of possible extension queue 1028. Compared 119373 event pairs, 3332 based on Foata normal form. 4/14446 useless extension candidates. Maximal degree in co-relation 138658. Up to 13944 conditions per place. [2023-08-30 08:52:07,863 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 774 selfloop transitions, 204 changer transitions 3/982 dead transitions. [2023-08-30 08:52:07,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 982 transitions, 26962 flow [2023-08-30 08:52:07,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 08:52:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 08:52:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2102 transitions. [2023-08-30 08:52:07,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46483856700574966 [2023-08-30 08:52:07,865 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2102 transitions. [2023-08-30 08:52:07,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2102 transitions. [2023-08-30 08:52:07,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:07,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2102 transitions. [2023-08-30 08:52:07,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 123.6470588235294) internal successors, (2102), 17 states have internal predecessors, (2102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:07,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:07,870 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:07,870 INFO L175 Difference]: Start difference. First operand has 293 places, 911 transitions, 23643 flow. Second operand 17 states and 2102 transitions. [2023-08-30 08:52:07,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 982 transitions, 26962 flow [2023-08-30 08:52:10,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 982 transitions, 26854 flow, removed 48 selfloop flow, removed 3 redundant places. [2023-08-30 08:52:10,639 INFO L231 Difference]: Finished difference. Result has 309 places, 920 transitions, 24230 flow [2023-08-30 08:52:10,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=23549, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=911, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=195, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=24230, PETRI_PLACES=309, PETRI_TRANSITIONS=920} [2023-08-30 08:52:10,642 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 270 predicate places. [2023-08-30 08:52:10,643 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 920 transitions, 24230 flow [2023-08-30 08:52:10,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:10,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:10,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:10,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 08:52:10,644 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:10,644 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:10,644 INFO L85 PathProgramCache]: Analyzing trace with hash -227225793, now seen corresponding path program 5 times [2023-08-30 08:52:10,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:10,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258840488] [2023-08-30 08:52:10,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:10,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:10,932 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 08:52:10,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:10,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258840488] [2023-08-30 08:52:10,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258840488] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:10,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:10,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:52:10,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685606776] [2023-08-30 08:52:10,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:10,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:52:10,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:10,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:52:10,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:52:11,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 266 [2023-08-30 08:52:11,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 920 transitions, 24230 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:11,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:11,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 266 [2023-08-30 08:52:11,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:16,112 INFO L130 PetriNetUnfolder]: 8172/14309 cut-off events. [2023-08-30 08:52:16,112 INFO L131 PetriNetUnfolder]: For 600332/600830 co-relation queries the response was YES. [2023-08-30 08:52:16,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132394 conditions, 14309 events. 8172/14309 cut-off events. For 600332/600830 co-relation queries the response was YES. Maximal size of possible extension queue 990. Compared 115386 event pairs, 2055 based on Foata normal form. 72/13744 useless extension candidates. Maximal degree in co-relation 131917. Up to 4821 conditions per place. [2023-08-30 08:52:16,270 INFO L137 encePairwiseOnDemand]: 256/266 looper letters, 738 selfloop transitions, 261 changer transitions 6/1094 dead transitions. [2023-08-30 08:52:16,270 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 1094 transitions, 28540 flow [2023-08-30 08:52:16,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:52:16,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:52:16,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1412 transitions. [2023-08-30 08:52:16,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530827067669173 [2023-08-30 08:52:16,272 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1412 transitions. [2023-08-30 08:52:16,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1412 transitions. [2023-08-30 08:52:16,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:16,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1412 transitions. [2023-08-30 08:52:16,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 141.2) internal successors, (1412), 10 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:16,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:16,274 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:16,275 INFO L175 Difference]: Start difference. First operand has 309 places, 920 transitions, 24230 flow. Second operand 10 states and 1412 transitions. [2023-08-30 08:52:16,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 1094 transitions, 28540 flow [2023-08-30 08:52:19,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 1094 transitions, 27604 flow, removed 221 selfloop flow, removed 17 redundant places. [2023-08-30 08:52:19,683 INFO L231 Difference]: Finished difference. Result has 300 places, 907 transitions, 23601 flow [2023-08-30 08:52:19,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=22858, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=903, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=257, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=644, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=23601, PETRI_PLACES=300, PETRI_TRANSITIONS=907} [2023-08-30 08:52:19,684 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 261 predicate places. [2023-08-30 08:52:19,684 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 907 transitions, 23601 flow [2023-08-30 08:52:19,684 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 08:52:19,684 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:19,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:19,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 08:52:19,685 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:19,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:19,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1639792211, now seen corresponding path program 2 times [2023-08-30 08:52:19,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:19,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984789812] [2023-08-30 08:52:19,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:19,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:52:20,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:20,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984789812] [2023-08-30 08:52:20,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984789812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:20,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:20,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:52:20,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173739459] [2023-08-30 08:52:20,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:20,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:52:20,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:20,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:52:20,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:52:20,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:52:20,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 907 transitions, 23601 flow. Second operand has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:20,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:20,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:52:20,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:27,794 INFO L130 PetriNetUnfolder]: 11099/19340 cut-off events. [2023-08-30 08:52:27,795 INFO L131 PetriNetUnfolder]: For 805719/805719 co-relation queries the response was YES. [2023-08-30 08:52:27,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173696 conditions, 19340 events. 11099/19340 cut-off events. For 805719/805719 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 161572 event pairs, 4431 based on Foata normal form. 27/18649 useless extension candidates. Maximal degree in co-relation 172573. Up to 11641 conditions per place. [2023-08-30 08:52:28,015 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 932 selfloop transitions, 333 changer transitions 73/1339 dead transitions. [2023-08-30 08:52:28,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1339 transitions, 36910 flow [2023-08-30 08:52:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 08:52:28,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 08:52:28,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3031 transitions. [2023-08-30 08:52:28,018 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47478070175438597 [2023-08-30 08:52:28,018 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 3031 transitions. [2023-08-30 08:52:28,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 3031 transitions. [2023-08-30 08:52:28,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:28,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 3031 transitions. [2023-08-30 08:52:28,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 126.29166666666667) internal successors, (3031), 24 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:28,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:28,025 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 266.0) internal successors, (6650), 25 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:28,025 INFO L175 Difference]: Start difference. First operand has 300 places, 907 transitions, 23601 flow. Second operand 24 states and 3031 transitions. [2023-08-30 08:52:28,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1339 transitions, 36910 flow [2023-08-30 08:52:33,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 1339 transitions, 35956 flow, removed 226 selfloop flow, removed 7 redundant places. [2023-08-30 08:52:33,398 INFO L231 Difference]: Finished difference. Result has 326 places, 982 transitions, 26104 flow [2023-08-30 08:52:33,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=23050, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=906, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=258, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=605, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=26104, PETRI_PLACES=326, PETRI_TRANSITIONS=982} [2023-08-30 08:52:33,399 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 287 predicate places. [2023-08-30 08:52:33,399 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 982 transitions, 26104 flow [2023-08-30 08:52:33,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:33,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:33,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:33,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 08:52:33,400 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:52:33,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:33,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1946000732, now seen corresponding path program 1 times [2023-08-30 08:52:33,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:33,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692015986] [2023-08-30 08:52:33,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:33,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:33,890 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 08:52:33,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:33,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692015986] [2023-08-30 08:52:33,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692015986] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:33,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:33,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:52:33,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657718793] [2023-08-30 08:52:33,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:33,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:52:33,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:52:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:52:34,152 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 266 [2023-08-30 08:52:34,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 982 transitions, 26104 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:34,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:34,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 266 [2023-08-30 08:52:34,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:41,994 INFO L130 PetriNetUnfolder]: 12170/21446 cut-off events. [2023-08-30 08:52:41,994 INFO L131 PetriNetUnfolder]: For 819801/819801 co-relation queries the response was YES. [2023-08-30 08:52:42,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187201 conditions, 21446 events. 12170/21446 cut-off events. For 819801/819801 co-relation queries the response was YES. Maximal size of possible extension queue 1364. Compared 184691 event pairs, 5752 based on Foata normal form. 44/20693 useless extension candidates. Maximal degree in co-relation 186428. Up to 18304 conditions per place. [2023-08-30 08:52:42,251 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 927 selfloop transitions, 189 changer transitions 106/1223 dead transitions. [2023-08-30 08:52:42,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1223 transitions, 34425 flow [2023-08-30 08:52:42,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:52:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:52:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1426 transitions. [2023-08-30 08:52:42,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48735475051264526 [2023-08-30 08:52:42,254 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1426 transitions. [2023-08-30 08:52:42,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1426 transitions. [2023-08-30 08:52:42,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:42,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1426 transitions. [2023-08-30 08:52:42,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.63636363636363) internal successors, (1426), 11 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:42,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:42,257 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:42,257 INFO L175 Difference]: Start difference. First operand has 326 places, 982 transitions, 26104 flow. Second operand 11 states and 1426 transitions. [2023-08-30 08:52:42,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1223 transitions, 34425 flow [2023-08-30 08:52:47,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 1223 transitions, 34001 flow, removed 75 selfloop flow, removed 6 redundant places. [2023-08-30 08:52:47,489 INFO L231 Difference]: Finished difference. Result has 334 places, 1022 transitions, 27630 flow [2023-08-30 08:52:47,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=25702, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=982, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=800, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=27630, PETRI_PLACES=334, PETRI_TRANSITIONS=1022} [2023-08-30 08:52:47,490 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 295 predicate places. [2023-08-30 08:52:47,490 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 1022 transitions, 27630 flow [2023-08-30 08:52:47,490 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 08:52:47,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:52:47,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:52:47,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 08:52:47,491 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 08:52:47,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:52:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash -566549549, now seen corresponding path program 1 times [2023-08-30 08:52:47,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:52:47,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665443676] [2023-08-30 08:52:47,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:52:47,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:52:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:52:47,896 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 08:52:47,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:52:47,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665443676] [2023-08-30 08:52:47,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665443676] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:52:47,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:52:47,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:52:47,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102963733] [2023-08-30 08:52:47,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:52:47,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:52:47,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:52:47,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:52:47,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:52:48,149 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:52:48,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 1022 transitions, 27630 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:48,150 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:52:48,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:52:48,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:52:56,236 INFO L130 PetriNetUnfolder]: 12018/21271 cut-off events. [2023-08-30 08:52:56,236 INFO L131 PetriNetUnfolder]: For 852020/852020 co-relation queries the response was YES. [2023-08-30 08:52:56,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 188609 conditions, 21271 events. 12018/21271 cut-off events. For 852020/852020 co-relation queries the response was YES. Maximal size of possible extension queue 1417. Compared 184525 event pairs, 2635 based on Foata normal form. 232/20728 useless extension candidates. Maximal degree in co-relation 188090. Up to 10317 conditions per place. [2023-08-30 08:52:56,682 INFO L137 encePairwiseOnDemand]: 245/266 looper letters, 739 selfloop transitions, 451 changer transitions 8/1199 dead transitions. [2023-08-30 08:52:56,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 1199 transitions, 32886 flow [2023-08-30 08:52:56,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:52:56,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:52:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1452 transitions. [2023-08-30 08:52:56,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49624060150375937 [2023-08-30 08:52:56,698 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1452 transitions. [2023-08-30 08:52:56,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1452 transitions. [2023-08-30 08:52:56,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:52:56,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1452 transitions. [2023-08-30 08:52:56,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 132.0) internal successors, (1452), 11 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:56,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:56,702 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 266.0) internal successors, (3192), 12 states have internal predecessors, (3192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:52:56,702 INFO L175 Difference]: Start difference. First operand has 334 places, 1022 transitions, 27630 flow. Second operand 11 states and 1452 transitions. [2023-08-30 08:52:56,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 1199 transitions, 32886 flow [2023-08-30 08:53:03,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 1199 transitions, 32745 flow, removed 31 selfloop flow, removed 4 redundant places. [2023-08-30 08:53:03,358 INFO L231 Difference]: Finished difference. Result has 346 places, 1075 transitions, 30255 flow [2023-08-30 08:53:03,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=27328, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1018, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=394, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=30255, PETRI_PLACES=346, PETRI_TRANSITIONS=1075} [2023-08-30 08:53:03,359 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 307 predicate places. [2023-08-30 08:53:03,359 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 1075 transitions, 30255 flow [2023-08-30 08:53:03,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:03,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:53:03,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:53:03,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 08:53:03,360 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:53:03,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:53:03,360 INFO L85 PathProgramCache]: Analyzing trace with hash -483154063, now seen corresponding path program 3 times [2023-08-30 08:53:03,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:53:03,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971798734] [2023-08-30 08:53:03,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:53:03,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:53:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:53:03,905 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 08:53:03,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:53:03,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971798734] [2023-08-30 08:53:03,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971798734] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:53:03,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:53:03,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:53:03,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726512162] [2023-08-30 08:53:03,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:53:03,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:53:03,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:53:03,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:53:03,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:53:04,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-08-30 08:53:04,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 1075 transitions, 30255 flow. Second operand has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:04,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:53:04,311 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-08-30 08:53:04,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:53:13,500 INFO L130 PetriNetUnfolder]: 11993/21278 cut-off events. [2023-08-30 08:53:13,501 INFO L131 PetriNetUnfolder]: For 923717/923717 co-relation queries the response was YES. [2023-08-30 08:53:13,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200053 conditions, 21278 events. 11993/21278 cut-off events. For 923717/923717 co-relation queries the response was YES. Maximal size of possible extension queue 1403. Compared 185028 event pairs, 5611 based on Foata normal form. 4/20507 useless extension candidates. Maximal degree in co-relation 197942. Up to 19733 conditions per place. [2023-08-30 08:53:13,782 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 808 selfloop transitions, 407 changer transitions 9/1225 dead transitions. [2023-08-30 08:53:13,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1225 transitions, 36219 flow [2023-08-30 08:53:13,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-08-30 08:53:13,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2023-08-30 08:53:13,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 3776 transitions. [2023-08-30 08:53:13,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45791899102595196 [2023-08-30 08:53:13,786 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 3776 transitions. [2023-08-30 08:53:13,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 3776 transitions. [2023-08-30 08:53:13,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:53:13,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 3776 transitions. [2023-08-30 08:53:13,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 121.80645161290323) internal successors, (3776), 31 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:13,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 266.0) internal successors, (8512), 32 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:13,796 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 266.0) internal successors, (8512), 32 states have internal predecessors, (8512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:13,796 INFO L175 Difference]: Start difference. First operand has 346 places, 1075 transitions, 30255 flow. Second operand 31 states and 3776 transitions. [2023-08-30 08:53:13,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1225 transitions, 36219 flow [2023-08-30 08:53:21,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1225 transitions, 35997 flow, removed 75 selfloop flow, removed 4 redundant places. [2023-08-30 08:53:21,192 INFO L231 Difference]: Finished difference. Result has 378 places, 1124 transitions, 32721 flow [2023-08-30 08:53:21,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=30061, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=32721, PETRI_PLACES=378, PETRI_TRANSITIONS=1124} [2023-08-30 08:53:21,193 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 339 predicate places. [2023-08-30 08:53:21,193 INFO L495 AbstractCegarLoop]: Abstraction has has 378 places, 1124 transitions, 32721 flow [2023-08-30 08:53:21,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.0) internal successors, (1404), 12 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:21,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:53:21,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:53:21,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 08:53:21,194 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 08:53:21,194 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:53:21,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1909203609, now seen corresponding path program 2 times [2023-08-30 08:53:21,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:53:21,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210160347] [2023-08-30 08:53:21,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:53:21,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:53:21,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:53:21,471 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 08:53:21,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:53:21,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210160347] [2023-08-30 08:53:21,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210160347] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:53:21,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:53:21,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:53:21,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024837099] [2023-08-30 08:53:21,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:53:21,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:53:21,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:53:21,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:53:21,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:53:21,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 266 [2023-08-30 08:53:21,754 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 1124 transitions, 32721 flow. Second operand has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:21,754 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:53:21,754 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 266 [2023-08-30 08:53:21,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:53:30,449 INFO L130 PetriNetUnfolder]: 11734/20807 cut-off events. [2023-08-30 08:53:30,450 INFO L131 PetriNetUnfolder]: For 923675/923675 co-relation queries the response was YES. [2023-08-30 08:53:30,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194578 conditions, 20807 events. 11734/20807 cut-off events. For 923675/923675 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 179364 event pairs, 3113 based on Foata normal form. 111/20161 useless extension candidates. Maximal degree in co-relation 194005. Up to 8055 conditions per place. [2023-08-30 08:53:30,694 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 788 selfloop transitions, 455 changer transitions 6/1250 dead transitions. [2023-08-30 08:53:30,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 1250 transitions, 36946 flow [2023-08-30 08:53:30,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:53:30,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:53:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1341 transitions. [2023-08-30 08:53:30,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5041353383458647 [2023-08-30 08:53:30,696 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1341 transitions. [2023-08-30 08:53:30,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1341 transitions. [2023-08-30 08:53:30,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:53:30,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1341 transitions. [2023-08-30 08:53:30,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.1) internal successors, (1341), 10 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:30,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:30,700 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:30,700 INFO L175 Difference]: Start difference. First operand has 378 places, 1124 transitions, 32721 flow. Second operand 10 states and 1341 transitions. [2023-08-30 08:53:30,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 1250 transitions, 36946 flow [2023-08-30 08:53:39,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1250 transitions, 35478 flow, removed 333 selfloop flow, removed 15 redundant places. [2023-08-30 08:53:39,954 INFO L231 Difference]: Finished difference. Result has 375 places, 1131 transitions, 32782 flow [2023-08-30 08:53:39,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=30815, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=436, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=32782, PETRI_PLACES=375, PETRI_TRANSITIONS=1131} [2023-08-30 08:53:39,955 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 336 predicate places. [2023-08-30 08:53:39,955 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 1131 transitions, 32782 flow [2023-08-30 08:53:39,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.22222222222223) internal successors, (1091), 9 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:39,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:53:39,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:53:39,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 08:53:39,956 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 08:53:39,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:53:39,956 INFO L85 PathProgramCache]: Analyzing trace with hash -436242410, now seen corresponding path program 2 times [2023-08-30 08:53:39,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:53:39,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721902861] [2023-08-30 08:53:39,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:53:39,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:53:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:53:40,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:53:40,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:53:40,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721902861] [2023-08-30 08:53:40,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721902861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:53:40,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:53:40,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:53:40,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570206518] [2023-08-30 08:53:40,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:53:40,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:53:40,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:53:40,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:53:40,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:53:40,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:53:40,676 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 1131 transitions, 32782 flow. Second operand has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:40,676 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:53:40,676 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:53:40,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:53:50,494 INFO L130 PetriNetUnfolder]: 12748/22865 cut-off events. [2023-08-30 08:53:50,495 INFO L131 PetriNetUnfolder]: For 960216/960216 co-relation queries the response was YES. [2023-08-30 08:53:50,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212989 conditions, 22865 events. 12748/22865 cut-off events. For 960216/960216 co-relation queries the response was YES. Maximal size of possible extension queue 1472. Compared 203069 event pairs, 6308 based on Foata normal form. 64/22094 useless extension candidates. Maximal degree in co-relation 212579. Up to 20037 conditions per place. [2023-08-30 08:53:50,905 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 1121 selfloop transitions, 163 changer transitions 86/1371 dead transitions. [2023-08-30 08:53:50,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 1371 transitions, 41581 flow [2023-08-30 08:53:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:53:50,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:53:50,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2005 transitions. [2023-08-30 08:53:50,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4710996240601504 [2023-08-30 08:53:50,910 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2005 transitions. [2023-08-30 08:53:50,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2005 transitions. [2023-08-30 08:53:50,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:53:50,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2005 transitions. [2023-08-30 08:53:50,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 125.3125) internal successors, (2005), 16 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:50,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:50,916 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:50,916 INFO L175 Difference]: Start difference. First operand has 375 places, 1131 transitions, 32782 flow. Second operand 16 states and 2005 transitions. [2023-08-30 08:53:50,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 1371 transitions, 41581 flow [2023-08-30 08:53:58,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1371 transitions, 41351 flow, removed 83 selfloop flow, removed 4 redundant places. [2023-08-30 08:53:58,910 INFO L231 Difference]: Finished difference. Result has 391 places, 1184 transitions, 34743 flow [2023-08-30 08:53:58,911 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=32562, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=34743, PETRI_PLACES=391, PETRI_TRANSITIONS=1184} [2023-08-30 08:53:58,911 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 352 predicate places. [2023-08-30 08:53:58,911 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 1184 transitions, 34743 flow [2023-08-30 08:53:58,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:58,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:53:58,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:53:58,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 08:53:58,912 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:53:58,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:53:58,912 INFO L85 PathProgramCache]: Analyzing trace with hash 217238217, now seen corresponding path program 4 times [2023-08-30 08:53:58,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:53:58,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904309992] [2023-08-30 08:53:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:53:58,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:53:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:53:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:53:59,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:53:59,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904309992] [2023-08-30 08:53:59,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904309992] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:53:59,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:53:59,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:53:59,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28744185] [2023-08-30 08:53:59,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:53:59,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:53:59,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:53:59,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:53:59,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:53:59,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:53:59,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 1184 transitions, 34743 flow. Second operand has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:53:59,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:53:59,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:53:59,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:54:09,595 INFO L130 PetriNetUnfolder]: 12404/22269 cut-off events. [2023-08-30 08:54:09,595 INFO L131 PetriNetUnfolder]: For 943008/943008 co-relation queries the response was YES. [2023-08-30 08:54:09,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211195 conditions, 22269 events. 12404/22269 cut-off events. For 943008/943008 co-relation queries the response was YES. Maximal size of possible extension queue 1495. Compared 197902 event pairs, 6041 based on Foata normal form. 29/21506 useless extension candidates. Maximal degree in co-relation 209076. Up to 19210 conditions per place. [2023-08-30 08:54:09,893 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 959 selfloop transitions, 425 changer transitions 42/1427 dead transitions. [2023-08-30 08:54:09,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 1427 transitions, 43614 flow [2023-08-30 08:54:09,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-30 08:54:09,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-30 08:54:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2535 transitions. [2023-08-30 08:54:09,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47650375939849626 [2023-08-30 08:54:09,895 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2535 transitions. [2023-08-30 08:54:09,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2535 transitions. [2023-08-30 08:54:09,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:54:09,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2535 transitions. [2023-08-30 08:54:09,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 126.75) internal successors, (2535), 20 states have internal predecessors, (2535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:09,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 266.0) internal successors, (5586), 21 states have internal predecessors, (5586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:09,901 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 266.0) internal successors, (5586), 21 states have internal predecessors, (5586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:09,902 INFO L175 Difference]: Start difference. First operand has 391 places, 1184 transitions, 34743 flow. Second operand 20 states and 2535 transitions. [2023-08-30 08:54:09,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 1427 transitions, 43614 flow [2023-08-30 08:54:16,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 1427 transitions, 43465 flow, removed 24 selfloop flow, removed 8 redundant places. [2023-08-30 08:54:16,717 INFO L231 Difference]: Finished difference. Result has 407 places, 1250 transitions, 37960 flow [2023-08-30 08:54:16,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=34601, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=789, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37960, PETRI_PLACES=407, PETRI_TRANSITIONS=1250} [2023-08-30 08:54:16,718 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 368 predicate places. [2023-08-30 08:54:16,718 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 1250 transitions, 37960 flow [2023-08-30 08:54:16,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.0909090909091) internal successors, (1310), 11 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:16,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:54:16,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:54:16,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 08:54:16,719 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 08:54:16,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:54:16,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1144596435, now seen corresponding path program 5 times [2023-08-30 08:54:16,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:54:16,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905644861] [2023-08-30 08:54:16,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:54:16,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:54:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:54:17,266 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 08:54:17,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:54:17,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905644861] [2023-08-30 08:54:17,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905644861] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:54:17,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:54:17,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:54:17,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754400104] [2023-08-30 08:54:17,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:54:17,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:54:17,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:54:17,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:54:17,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:54:17,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-08-30 08:54:17,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 1250 transitions, 37960 flow. Second operand has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:17,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:54:17,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-08-30 08:54:17,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:54:28,340 INFO L130 PetriNetUnfolder]: 12316/22166 cut-off events. [2023-08-30 08:54:28,340 INFO L131 PetriNetUnfolder]: For 963716/963716 co-relation queries the response was YES. [2023-08-30 08:54:28,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212013 conditions, 22166 events. 12316/22166 cut-off events. For 963716/963716 co-relation queries the response was YES. Maximal size of possible extension queue 1475. Compared 197229 event pairs, 6532 based on Foata normal form. 47/21431 useless extension candidates. Maximal degree in co-relation 211468. Up to 20836 conditions per place. [2023-08-30 08:54:28,650 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 952 selfloop transitions, 368 changer transitions 51/1372 dead transitions. [2023-08-30 08:54:28,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 1372 transitions, 43971 flow [2023-08-30 08:54:28,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 08:54:28,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 08:54:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2108 transitions. [2023-08-30 08:54:28,653 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46616541353383456 [2023-08-30 08:54:28,653 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2108 transitions. [2023-08-30 08:54:28,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2108 transitions. [2023-08-30 08:54:28,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:54:28,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2108 transitions. [2023-08-30 08:54:28,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 124.0) internal successors, (2108), 17 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:28,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:28,659 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:28,660 INFO L175 Difference]: Start difference. First operand has 407 places, 1250 transitions, 37960 flow. Second operand 17 states and 2108 transitions. [2023-08-30 08:54:28,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 1372 transitions, 43971 flow [2023-08-30 08:54:37,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 1372 transitions, 43656 flow, removed 145 selfloop flow, removed 5 redundant places. [2023-08-30 08:54:37,209 INFO L231 Difference]: Finished difference. Result has 424 places, 1260 transitions, 39065 flow [2023-08-30 08:54:37,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=37661, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=349, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=895, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=39065, PETRI_PLACES=424, PETRI_TRANSITIONS=1260} [2023-08-30 08:54:37,211 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 385 predicate places. [2023-08-30 08:54:37,211 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 1260 transitions, 39065 flow [2023-08-30 08:54:37,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:37,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:54:37,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:54:37,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 08:54:37,211 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 08:54:37,212 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:54:37,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2105968361, now seen corresponding path program 2 times [2023-08-30 08:54:37,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:54:37,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942310809] [2023-08-30 08:54:37,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:54:37,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:54:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:54:37,467 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 08:54:37,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:54:37,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942310809] [2023-08-30 08:54:37,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942310809] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:54:37,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:54:37,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:54:37,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35691685] [2023-08-30 08:54:37,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:54:37,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:54:37,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:54:37,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:54:37,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:54:37,785 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:54:37,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1260 transitions, 39065 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:37,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:54:37,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:54:37,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:54:48,725 INFO L130 PetriNetUnfolder]: 12358/22244 cut-off events. [2023-08-30 08:54:48,725 INFO L131 PetriNetUnfolder]: For 1013553/1013553 co-relation queries the response was YES. [2023-08-30 08:54:48,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216665 conditions, 22244 events. 12358/22244 cut-off events. For 1013553/1013553 co-relation queries the response was YES. Maximal size of possible extension queue 1488. Compared 197872 event pairs, 4761 based on Foata normal form. 48/21504 useless extension candidates. Maximal degree in co-relation 216233. Up to 11709 conditions per place. [2023-08-30 08:54:49,008 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 1115 selfloop transitions, 272 changer transitions 1/1389 dead transitions. [2023-08-30 08:54:49,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 1389 transitions, 44143 flow [2023-08-30 08:54:49,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:54:49,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:54:49,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1567 transitions. [2023-08-30 08:54:49,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4909147869674185 [2023-08-30 08:54:49,010 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1567 transitions. [2023-08-30 08:54:49,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1567 transitions. [2023-08-30 08:54:49,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:54:49,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1567 transitions. [2023-08-30 08:54:49,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.58333333333334) internal successors, (1567), 12 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:49,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:49,013 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:49,013 INFO L175 Difference]: Start difference. First operand has 424 places, 1260 transitions, 39065 flow. Second operand 12 states and 1567 transitions. [2023-08-30 08:54:49,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 1389 transitions, 44143 flow [2023-08-30 08:54:57,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 1389 transitions, 43656 flow, removed 73 selfloop flow, removed 10 redundant places. [2023-08-30 08:54:57,584 INFO L231 Difference]: Finished difference. Result has 431 places, 1299 transitions, 40839 flow [2023-08-30 08:54:57,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=38610, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=235, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1009, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=40839, PETRI_PLACES=431, PETRI_TRANSITIONS=1299} [2023-08-30 08:54:57,585 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 392 predicate places. [2023-08-30 08:54:57,585 INFO L495 AbstractCegarLoop]: Abstraction has has 431 places, 1299 transitions, 40839 flow [2023-08-30 08:54:57,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:57,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:54:57,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:54:57,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 08:54:57,586 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:54:57,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:54:57,587 INFO L85 PathProgramCache]: Analyzing trace with hash -2104786330, now seen corresponding path program 1 times [2023-08-30 08:54:57,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:54:57,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56883993] [2023-08-30 08:54:57,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:54:57,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:54:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:54:57,846 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 08:54:57,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:54:57,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56883993] [2023-08-30 08:54:57,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56883993] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:54:57,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:54:57,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:54:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717599908] [2023-08-30 08:54:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:54:57,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:54:57,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:54:57,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:54:57,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:54:58,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:54:58,114 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 431 places, 1299 transitions, 40839 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:54:58,114 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:54:58,114 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:54:58,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:55:09,138 INFO L130 PetriNetUnfolder]: 12456/22414 cut-off events. [2023-08-30 08:55:09,138 INFO L131 PetriNetUnfolder]: For 1072337/1072337 co-relation queries the response was YES. [2023-08-30 08:55:09,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222243 conditions, 22414 events. 12456/22414 cut-off events. For 1072337/1072337 co-relation queries the response was YES. Maximal size of possible extension queue 1447. Compared 199300 event pairs, 4875 based on Foata normal form. 62/21682 useless extension candidates. Maximal degree in co-relation 220385. Up to 11709 conditions per place. [2023-08-30 08:55:09,465 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 1112 selfloop transitions, 283 changer transitions 1/1397 dead transitions. [2023-08-30 08:55:09,465 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 439 places, 1397 transitions, 45435 flow [2023-08-30 08:55:09,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:55:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:55:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1182 transitions. [2023-08-30 08:55:09,467 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49373433583959897 [2023-08-30 08:55:09,467 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1182 transitions. [2023-08-30 08:55:09,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1182 transitions. [2023-08-30 08:55:09,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:55:09,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1182 transitions. [2023-08-30 08:55:09,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 131.33333333333334) internal successors, (1182), 9 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:09,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:09,471 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:09,471 INFO L175 Difference]: Start difference. First operand has 431 places, 1299 transitions, 40839 flow. Second operand 9 states and 1182 transitions. [2023-08-30 08:55:09,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 439 places, 1397 transitions, 45435 flow [2023-08-30 08:55:18,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1397 transitions, 45046 flow, removed 62 selfloop flow, removed 4 redundant places. [2023-08-30 08:55:18,388 INFO L231 Difference]: Finished difference. Result has 438 places, 1319 transitions, 42229 flow [2023-08-30 08:55:18,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=40468, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1026, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=42229, PETRI_PLACES=438, PETRI_TRANSITIONS=1319} [2023-08-30 08:55:18,390 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 399 predicate places. [2023-08-30 08:55:18,390 INFO L495 AbstractCegarLoop]: Abstraction has has 438 places, 1319 transitions, 42229 flow [2023-08-30 08:55:18,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:18,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:55:18,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:55:18,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-30 08:55:18,391 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 08:55:18,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:55:18,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1328779596, now seen corresponding path program 3 times [2023-08-30 08:55:18,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:55:18,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971699003] [2023-08-30 08:55:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:55:18,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:55:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:55:18,766 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 08:55:18,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:55:18,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971699003] [2023-08-30 08:55:18,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971699003] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:55:18,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:55:18,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:55:18,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114538253] [2023-08-30 08:55:18,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:55:18,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:55:18,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:55:18,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:55:18,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:55:19,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:55:19,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1319 transitions, 42229 flow. Second operand has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:19,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:55:19,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:55:19,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:55:31,287 INFO L130 PetriNetUnfolder]: 13401/24196 cut-off events. [2023-08-30 08:55:31,287 INFO L131 PetriNetUnfolder]: For 1159368/1159368 co-relation queries the response was YES. [2023-08-30 08:55:31,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240893 conditions, 24196 events. 13401/24196 cut-off events. For 1159368/1159368 co-relation queries the response was YES. Maximal size of possible extension queue 1593. Compared 218656 event pairs, 6917 based on Foata normal form. 44/23376 useless extension candidates. Maximal degree in co-relation 239119. Up to 21688 conditions per place. [2023-08-30 08:55:31,686 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 1278 selfloop transitions, 156 changer transitions 68/1503 dead transitions. [2023-08-30 08:55:31,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1503 transitions, 49666 flow [2023-08-30 08:55:31,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:55:31,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:55:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1765 transitions. [2023-08-30 08:55:31,688 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47395273899033297 [2023-08-30 08:55:31,688 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1765 transitions. [2023-08-30 08:55:31,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1765 transitions. [2023-08-30 08:55:31,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:55:31,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1765 transitions. [2023-08-30 08:55:31,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 126.07142857142857) internal successors, (1765), 14 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:31,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:31,693 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:31,693 INFO L175 Difference]: Start difference. First operand has 438 places, 1319 transitions, 42229 flow. Second operand 14 states and 1765 transitions. [2023-08-30 08:55:31,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1503 transitions, 49666 flow [2023-08-30 08:55:41,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 1503 transitions, 49264 flow, removed 43 selfloop flow, removed 5 redundant places. [2023-08-30 08:55:41,732 INFO L231 Difference]: Finished difference. Result has 450 places, 1334 transitions, 42863 flow [2023-08-30 08:55:41,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=41878, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=42863, PETRI_PLACES=450, PETRI_TRANSITIONS=1334} [2023-08-30 08:55:41,733 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 411 predicate places. [2023-08-30 08:55:41,734 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 1334 transitions, 42863 flow [2023-08-30 08:55:41,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:41,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:55:41,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:55:41,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-30 08:55:41,734 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:55:41,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:55:41,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1930860520, now seen corresponding path program 2 times [2023-08-30 08:55:41,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:55:41,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572075619] [2023-08-30 08:55:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:55:41,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:55:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:55:42,023 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 08:55:42,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:55:42,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572075619] [2023-08-30 08:55:42,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572075619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:55:42,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:55:42,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:55:42,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732669929] [2023-08-30 08:55:42,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:55:42,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:55:42,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:55:42,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:55:42,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:55:42,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:55:42,313 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 1334 transitions, 42863 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:42,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:55:42,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:55:42,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:55:55,504 INFO L130 PetriNetUnfolder]: 14063/25732 cut-off events. [2023-08-30 08:55:55,504 INFO L131 PetriNetUnfolder]: For 1292758/1292758 co-relation queries the response was YES. [2023-08-30 08:55:55,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256399 conditions, 25732 events. 14063/25732 cut-off events. For 1292758/1292758 co-relation queries the response was YES. Maximal size of possible extension queue 1732. Compared 239471 event pairs, 4651 based on Foata normal form. 254/25115 useless extension candidates. Maximal degree in co-relation 253874. Up to 12613 conditions per place. [2023-08-30 08:55:55,894 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 1080 selfloop transitions, 430 changer transitions 26/1537 dead transitions. [2023-08-30 08:55:55,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 1537 transitions, 51111 flow [2023-08-30 08:55:55,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:55:55,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:55:55,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1328 transitions. [2023-08-30 08:55:55,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4992481203007519 [2023-08-30 08:55:55,896 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1328 transitions. [2023-08-30 08:55:55,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1328 transitions. [2023-08-30 08:55:55,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:55:55,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1328 transitions. [2023-08-30 08:55:55,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.8) internal successors, (1328), 10 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:55,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:55,900 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:55:55,900 INFO L175 Difference]: Start difference. First operand has 450 places, 1334 transitions, 42863 flow. Second operand 10 states and 1328 transitions. [2023-08-30 08:55:55,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 1537 transitions, 51111 flow [2023-08-30 08:56:08,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 1537 transitions, 50962 flow, removed 48 selfloop flow, removed 6 redundant places. [2023-08-30 08:56:08,785 INFO L231 Difference]: Finished difference. Result has 457 places, 1395 transitions, 46242 flow [2023-08-30 08:56:08,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=42457, PETRI_DIFFERENCE_MINUEND_PLACES=444, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=350, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=933, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=46242, PETRI_PLACES=457, PETRI_TRANSITIONS=1395} [2023-08-30 08:56:08,787 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 418 predicate places. [2023-08-30 08:56:08,787 INFO L495 AbstractCegarLoop]: Abstraction has has 457 places, 1395 transitions, 46242 flow [2023-08-30 08:56:08,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:08,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:56:08,787 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:56:08,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-30 08:56:08,787 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:56:08,787 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:56:08,787 INFO L85 PathProgramCache]: Analyzing trace with hash 936413681, now seen corresponding path program 6 times [2023-08-30 08:56:08,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:56:08,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739585227] [2023-08-30 08:56:08,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:56:08,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:56:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:56:09,265 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 08:56:09,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:56:09,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739585227] [2023-08-30 08:56:09,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739585227] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:56:09,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:56:09,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 08:56:09,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009599758] [2023-08-30 08:56:09,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:56:09,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 08:56:09,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:56:09,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 08:56:09,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-30 08:56:09,614 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 266 [2023-08-30 08:56:09,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 1395 transitions, 46242 flow. Second operand has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:09,615 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:56:09,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 266 [2023-08-30 08:56:09,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:56:24,335 INFO L130 PetriNetUnfolder]: 13874/25433 cut-off events. [2023-08-30 08:56:24,335 INFO L131 PetriNetUnfolder]: For 1321016/1321016 co-relation queries the response was YES. [2023-08-30 08:56:24,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261012 conditions, 25433 events. 13874/25433 cut-off events. For 1321016/1321016 co-relation queries the response was YES. Maximal size of possible extension queue 1700. Compared 236271 event pairs, 7048 based on Foata normal form. 8/24576 useless extension candidates. Maximal degree in co-relation 258927. Up to 24014 conditions per place. [2023-08-30 08:56:24,929 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1073 selfloop transitions, 400 changer transitions 14/1488 dead transitions. [2023-08-30 08:56:24,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 1488 transitions, 50913 flow [2023-08-30 08:56:24,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 08:56:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 08:56:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2693 transitions. [2023-08-30 08:56:24,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601845522898155 [2023-08-30 08:56:24,933 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2693 transitions. [2023-08-30 08:56:24,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2693 transitions. [2023-08-30 08:56:24,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:56:24,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2693 transitions. [2023-08-30 08:56:24,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 122.4090909090909) internal successors, (2693), 22 states have internal predecessors, (2693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:24,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:24,940 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:24,940 INFO L175 Difference]: Start difference. First operand has 457 places, 1395 transitions, 46242 flow. Second operand 22 states and 2693 transitions. [2023-08-30 08:56:24,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 1488 transitions, 50913 flow [2023-08-30 08:56:36,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 1488 transitions, 50733 flow, removed 46 selfloop flow, removed 7 redundant places. [2023-08-30 08:56:36,546 INFO L231 Difference]: Finished difference. Result has 472 places, 1393 transitions, 46856 flow [2023-08-30 08:56:36,547 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=45983, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=399, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=46856, PETRI_PLACES=472, PETRI_TRANSITIONS=1393} [2023-08-30 08:56:36,548 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 433 predicate places. [2023-08-30 08:56:36,548 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 1393 transitions, 46856 flow [2023-08-30 08:56:36,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 116.92307692307692) internal successors, (1520), 13 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:36,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:56:36,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:56:36,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-30 08:56:36,549 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 08:56:36,549 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:56:36,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1707372397, now seen corresponding path program 6 times [2023-08-30 08:56:36,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:56:36,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247096154] [2023-08-30 08:56:36,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:56:36,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:56:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:56:36,869 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 08:56:36,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:56:36,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247096154] [2023-08-30 08:56:36,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247096154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:56:36,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:56:36,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:56:36,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747712313] [2023-08-30 08:56:36,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:56:36,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:56:36,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:56:36,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:56:36,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:56:37,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:56:37,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 1393 transitions, 46856 flow. Second operand has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:37,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:56:37,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:56:37,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:56:51,039 INFO L130 PetriNetUnfolder]: 14134/25908 cut-off events. [2023-08-30 08:56:51,040 INFO L131 PetriNetUnfolder]: For 1326718/1326718 co-relation queries the response was YES. [2023-08-30 08:56:51,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265060 conditions, 25908 events. 14134/25908 cut-off events. For 1326718/1326718 co-relation queries the response was YES. Maximal size of possible extension queue 1761. Compared 240651 event pairs, 3867 based on Foata normal form. 22/25051 useless extension candidates. Maximal degree in co-relation 263315. Up to 10348 conditions per place. [2023-08-30 08:56:51,434 INFO L137 encePairwiseOnDemand]: 249/266 looper letters, 797 selfloop transitions, 760 changer transitions 20/1578 dead transitions. [2023-08-30 08:56:51,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1578 transitions, 54252 flow [2023-08-30 08:56:51,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:56:51,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:56:51,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1830 transitions. [2023-08-30 08:56:51,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49140708915145004 [2023-08-30 08:56:51,436 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1830 transitions. [2023-08-30 08:56:51,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1830 transitions. [2023-08-30 08:56:51,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:56:51,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1830 transitions. [2023-08-30 08:56:51,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.71428571428572) internal successors, (1830), 14 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:51,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:51,439 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:56:51,439 INFO L175 Difference]: Start difference. First operand has 472 places, 1393 transitions, 46856 flow. Second operand 14 states and 1830 transitions. [2023-08-30 08:56:51,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1578 transitions, 54252 flow [2023-08-30 08:57:03,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 1578 transitions, 53498 flow, removed 18 selfloop flow, removed 19 redundant places. [2023-08-30 08:57:03,836 INFO L231 Difference]: Finished difference. Result has 468 places, 1407 transitions, 48885 flow [2023-08-30 08:57:03,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=45987, PETRI_DIFFERENCE_MINUEND_PLACES=451, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1390, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=743, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=631, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=48885, PETRI_PLACES=468, PETRI_TRANSITIONS=1407} [2023-08-30 08:57:03,838 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 429 predicate places. [2023-08-30 08:57:03,838 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 1407 transitions, 48885 flow [2023-08-30 08:57:03,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 119.0) internal successors, (1309), 11 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:03,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:57:03,839 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:57:03,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-30 08:57:03,839 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:57:03,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:57:03,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1707372398, now seen corresponding path program 4 times [2023-08-30 08:57:03,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:57:03,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649059407] [2023-08-30 08:57:03,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:57:03,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:57:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:57:04,332 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 08:57:04,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:57:04,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649059407] [2023-08-30 08:57:04,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649059407] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:57:04,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:57:04,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:57:04,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851877836] [2023-08-30 08:57:04,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:57:04,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:57:04,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:57:04,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:57:04,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:57:04,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:57:04,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 1407 transitions, 48885 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:04,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:57:04,624 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:57:04,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:57:18,674 INFO L130 PetriNetUnfolder]: 13992/25661 cut-off events. [2023-08-30 08:57:18,674 INFO L131 PetriNetUnfolder]: For 1421814/1421814 co-relation queries the response was YES. [2023-08-30 08:57:19,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270133 conditions, 25661 events. 13992/25661 cut-off events. For 1421814/1421814 co-relation queries the response was YES. Maximal size of possible extension queue 1709. Compared 239237 event pairs, 7146 based on Foata normal form. 2/24796 useless extension candidates. Maximal degree in co-relation 268098. Up to 24647 conditions per place. [2023-08-30 08:57:19,397 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 1223 selfloop transitions, 240 changer transitions 6/1470 dead transitions. [2023-08-30 08:57:19,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1470 transitions, 53086 flow [2023-08-30 08:57:19,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:57:19,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:57:19,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1976 transitions. [2023-08-30 08:57:19,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2023-08-30 08:57:19,399 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1976 transitions. [2023-08-30 08:57:19,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1976 transitions. [2023-08-30 08:57:19,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:57:19,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1976 transitions. [2023-08-30 08:57:19,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 123.5) internal successors, (1976), 16 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:19,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:19,403 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:19,403 INFO L175 Difference]: Start difference. First operand has 468 places, 1407 transitions, 48885 flow. Second operand 16 states and 1976 transitions. [2023-08-30 08:57:19,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1470 transitions, 53086 flow [2023-08-30 08:57:32,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 1470 transitions, 52355 flow, removed 62 selfloop flow, removed 9 redundant places. [2023-08-30 08:57:32,273 INFO L231 Difference]: Finished difference. Result has 475 places, 1407 transitions, 48688 flow [2023-08-30 08:57:32,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=48170, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=48688, PETRI_PLACES=475, PETRI_TRANSITIONS=1407} [2023-08-30 08:57:32,274 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 436 predicate places. [2023-08-30 08:57:32,274 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 1407 transitions, 48688 flow [2023-08-30 08:57:32,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:32,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:57:32,275 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:57:32,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-30 08:57:32,275 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:57:32,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:57:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash -469325302, now seen corresponding path program 5 times [2023-08-30 08:57:32,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:57:32,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141052252] [2023-08-30 08:57:32,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:57:32,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:57:32,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:57:32,661 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 08:57:32,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:57:32,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141052252] [2023-08-30 08:57:32,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141052252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:57:32,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:57:32,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:57:32,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159536641] [2023-08-30 08:57:32,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:57:32,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:57:32,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:57:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:57:32,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:57:32,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:57:32,945 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 1407 transitions, 48688 flow. Second operand has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:32,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:57:32,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:57:32,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:57:48,204 INFO L130 PetriNetUnfolder]: 15078/27863 cut-off events. [2023-08-30 08:57:48,205 INFO L131 PetriNetUnfolder]: For 1459578/1459578 co-relation queries the response was YES. [2023-08-30 08:57:48,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286396 conditions, 27863 events. 15078/27863 cut-off events. For 1459578/1459578 co-relation queries the response was YES. Maximal size of possible extension queue 1877. Compared 264710 event pairs, 8094 based on Foata normal form. 65/26991 useless extension candidates. Maximal degree in co-relation 284646. Up to 24513 conditions per place. [2023-08-30 08:57:48,782 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1376 selfloop transitions, 155 changer transitions 59/1591 dead transitions. [2023-08-30 08:57:48,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 1591 transitions, 56720 flow [2023-08-30 08:57:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:57:48,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:57:48,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1523 transitions. [2023-08-30 08:57:48,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47713032581453635 [2023-08-30 08:57:48,783 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1523 transitions. [2023-08-30 08:57:48,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1523 transitions. [2023-08-30 08:57:48,783 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:57:48,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1523 transitions. [2023-08-30 08:57:48,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 126.91666666666667) internal successors, (1523), 12 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:48,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:48,786 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 266.0) internal successors, (3458), 13 states have internal predecessors, (3458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:57:48,786 INFO L175 Difference]: Start difference. First operand has 475 places, 1407 transitions, 48688 flow. Second operand 12 states and 1523 transitions. [2023-08-30 08:57:48,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 1591 transitions, 56720 flow [2023-08-30 08:58:02,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 1591 transitions, 56376 flow, removed 1 selfloop flow, removed 14 redundant places. [2023-08-30 08:58:02,700 INFO L231 Difference]: Finished difference. Result has 476 places, 1434 transitions, 49826 flow [2023-08-30 08:58:02,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=48360, PETRI_DIFFERENCE_MINUEND_PLACES=461, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=49826, PETRI_PLACES=476, PETRI_TRANSITIONS=1434} [2023-08-30 08:58:02,701 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 437 predicate places. [2023-08-30 08:58:02,701 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 1434 transitions, 49826 flow [2023-08-30 08:58:02,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0) internal successors, (1298), 11 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:02,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:58:02,702 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:58:02,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-30 08:58:02,702 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:58:02,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:58:02,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1863309998, now seen corresponding path program 6 times [2023-08-30 08:58:02,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:58:02,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712384992] [2023-08-30 08:58:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:58:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:58:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:58:03,088 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 08:58:03,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:58:03,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712384992] [2023-08-30 08:58:03,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712384992] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:58:03,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:58:03,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:58:03,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252788753] [2023-08-30 08:58:03,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:58:03,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:58:03,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:58:03,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:58:03,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:58:03,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 08:58:03,575 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 1434 transitions, 49826 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:03,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:58:03,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 08:58:03,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:58:20,337 INFO L130 PetriNetUnfolder]: 15692/29156 cut-off events. [2023-08-30 08:58:20,337 INFO L131 PetriNetUnfolder]: For 1539660/1539660 co-relation queries the response was YES. [2023-08-30 08:58:20,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299147 conditions, 29156 events. 15692/29156 cut-off events. For 1539660/1539660 co-relation queries the response was YES. Maximal size of possible extension queue 1937. Compared 280853 event pairs, 8590 based on Foata normal form. 44/28208 useless extension candidates. Maximal degree in co-relation 297117. Up to 26325 conditions per place. [2023-08-30 08:58:20,852 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1363 selfloop transitions, 179 changer transitions 39/1582 dead transitions. [2023-08-30 08:58:20,852 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 491 places, 1582 transitions, 56923 flow [2023-08-30 08:58:20,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:58:20,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:58:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2002 transitions. [2023-08-30 08:58:20,853 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47039473684210525 [2023-08-30 08:58:20,853 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2002 transitions. [2023-08-30 08:58:20,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2002 transitions. [2023-08-30 08:58:20,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:58:20,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2002 transitions. [2023-08-30 08:58:20,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 125.125) internal successors, (2002), 16 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:20,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:20,858 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 266.0) internal successors, (4522), 17 states have internal predecessors, (4522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:20,858 INFO L175 Difference]: Start difference. First operand has 476 places, 1434 transitions, 49826 flow. Second operand 16 states and 2002 transitions. [2023-08-30 08:58:20,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 491 places, 1582 transitions, 56923 flow [2023-08-30 08:58:35,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1582 transitions, 56822 flow, removed 20 selfloop flow, removed 5 redundant places. [2023-08-30 08:58:35,685 INFO L231 Difference]: Finished difference. Result has 490 places, 1456 transitions, 51095 flow [2023-08-30 08:58:35,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=49716, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=51095, PETRI_PLACES=490, PETRI_TRANSITIONS=1456} [2023-08-30 08:58:35,687 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 451 predicate places. [2023-08-30 08:58:35,687 INFO L495 AbstractCegarLoop]: Abstraction has has 490 places, 1456 transitions, 51095 flow [2023-08-30 08:58:35,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:35,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:58:35,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:58:35,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-30 08:58:35,687 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 08:58:35,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:58:35,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2121491208, now seen corresponding path program 3 times [2023-08-30 08:58:35,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:58:35,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123469968] [2023-08-30 08:58:35,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:58:35,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:58:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:58:35,956 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 08:58:35,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:58:35,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123469968] [2023-08-30 08:58:35,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123469968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:58:35,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:58:35,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:58:35,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787557005] [2023-08-30 08:58:35,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:58:35,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:58:35,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:58:35,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:58:35,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:58:36,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:58:36,198 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 490 places, 1456 transitions, 51095 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:36,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:58:36,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:58:36,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:58:53,868 INFO L130 PetriNetUnfolder]: 16357/30639 cut-off events. [2023-08-30 08:58:53,869 INFO L131 PetriNetUnfolder]: For 1679030/1679030 co-relation queries the response was YES. [2023-08-30 08:58:54,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315072 conditions, 30639 events. 16357/30639 cut-off events. For 1679030/1679030 co-relation queries the response was YES. Maximal size of possible extension queue 2058. Compared 299893 event pairs, 6920 based on Foata normal form. 264/29882 useless extension candidates. Maximal degree in co-relation 312983. Up to 12987 conditions per place. [2023-08-30 08:58:54,487 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 1396 selfloop transitions, 244 changer transitions 10/1651 dead transitions. [2023-08-30 08:58:54,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 1651 transitions, 58998 flow [2023-08-30 08:58:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:58:54,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:58:54,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1320 transitions. [2023-08-30 08:58:54,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49624060150375937 [2023-08-30 08:58:54,489 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1320 transitions. [2023-08-30 08:58:54,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1320 transitions. [2023-08-30 08:58:54,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:58:54,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1320 transitions. [2023-08-30 08:58:54,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.0) internal successors, (1320), 10 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:54,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:54,491 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 266.0) internal successors, (2926), 11 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:58:54,491 INFO L175 Difference]: Start difference. First operand has 490 places, 1456 transitions, 51095 flow. Second operand 10 states and 1320 transitions. [2023-08-30 08:58:54,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 1651 transitions, 58998 flow [2023-08-30 08:59:12,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 492 places, 1651 transitions, 58855 flow, removed 39 selfloop flow, removed 7 redundant places. [2023-08-30 08:59:12,199 INFO L231 Difference]: Finished difference. Result has 496 places, 1525 transitions, 53891 flow [2023-08-30 08:59:12,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=50930, PETRI_DIFFERENCE_MINUEND_PLACES=483, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=53891, PETRI_PLACES=496, PETRI_TRANSITIONS=1525} [2023-08-30 08:59:12,200 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 457 predicate places. [2023-08-30 08:59:12,200 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 1525 transitions, 53891 flow [2023-08-30 08:59:12,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:59:12,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:59:12,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:59:12,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-30 08:59:12,201 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:59:12,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:59:12,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1947565397, now seen corresponding path program 3 times [2023-08-30 08:59:12,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:59:12,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361134350] [2023-08-30 08:59:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:59:12,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:59:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:59:12,534 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 08:59:12,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:59:12,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361134350] [2023-08-30 08:59:12,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361134350] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:59:12,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:59:12,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:59:12,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727443003] [2023-08-30 08:59:12,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:59:12,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:59:12,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:59:12,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:59:12,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:59:12,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 08:59:12,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 1525 transitions, 53891 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:59:12,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:59:12,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 08:59:12,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:59:32,273 INFO L130 PetriNetUnfolder]: 16357/30647 cut-off events. [2023-08-30 08:59:32,273 INFO L131 PetriNetUnfolder]: For 1733136/1733136 co-relation queries the response was YES. [2023-08-30 08:59:32,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321768 conditions, 30647 events. 16357/30647 cut-off events. For 1733136/1733136 co-relation queries the response was YES. Maximal size of possible extension queue 2085. Compared 300080 event pairs, 6895 based on Foata normal form. 20/29654 useless extension candidates. Maximal degree in co-relation 319558. Up to 12987 conditions per place. [2023-08-30 08:59:32,977 INFO L137 encePairwiseOnDemand]: 250/266 looper letters, 1273 selfloop transitions, 328 changer transitions 0/1602 dead transitions. [2023-08-30 08:59:32,977 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 1602 transitions, 58621 flow [2023-08-30 08:59:32,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:59:32,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:59:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1165 transitions. [2023-08-30 08:59:32,978 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48663324979114453 [2023-08-30 08:59:32,978 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1165 transitions. [2023-08-30 08:59:32,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1165 transitions. [2023-08-30 08:59:32,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:59:32,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1165 transitions. [2023-08-30 08:59:32,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.44444444444446) internal successors, (1165), 9 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:59:32,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:59:32,980 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:59:32,980 INFO L175 Difference]: Start difference. First operand has 496 places, 1525 transitions, 53891 flow. Second operand 9 states and 1165 transitions. [2023-08-30 08:59:32,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 1602 transitions, 58621 flow [2023-08-30 08:59:50,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 1602 transitions, 58345 flow, removed 107 selfloop flow, removed 5 redundant places. [2023-08-30 08:59:50,929 INFO L231 Difference]: Finished difference. Result has 502 places, 1545 transitions, 55288 flow [2023-08-30 08:59:50,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=53552, PETRI_DIFFERENCE_MINUEND_PLACES=491, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1522, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=305, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=55288, PETRI_PLACES=502, PETRI_TRANSITIONS=1545} [2023-08-30 08:59:50,931 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 463 predicate places. [2023-08-30 08:59:50,931 INFO L495 AbstractCegarLoop]: Abstraction has has 502 places, 1545 transitions, 55288 flow [2023-08-30 08:59:50,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:59:50,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:59:50,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:59:50,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-30 08:59:50,931 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:59:50,931 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:59:50,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1463759126, now seen corresponding path program 4 times [2023-08-30 08:59:50,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:59:50,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385621798] [2023-08-30 08:59:50,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:59:50,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:59:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:59:51,270 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 08:59:51,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:59:51,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385621798] [2023-08-30 08:59:51,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385621798] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:59:51,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:59:51,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:59:51,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798317922] [2023-08-30 08:59:51,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:59:51,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:59:51,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:59:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:59:51,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:59:51,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 266 [2023-08-30 08:59:51,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 502 places, 1545 transitions, 55288 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:59:51,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:59:51,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 266 [2023-08-30 08:59:51,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:00:13,436 INFO L130 PetriNetUnfolder]: 18317/34588 cut-off events. [2023-08-30 09:00:13,437 INFO L131 PetriNetUnfolder]: For 1898836/1898836 co-relation queries the response was YES. [2023-08-30 09:00:14,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 360770 conditions, 34588 events. 18317/34588 cut-off events. For 1898836/1898836 co-relation queries the response was YES. Maximal size of possible extension queue 2337. Compared 347142 event pairs, 10526 based on Foata normal form. 64/33479 useless extension candidates. Maximal degree in co-relation 358521. Up to 28230 conditions per place. [2023-08-30 09:00:14,363 INFO L137 encePairwiseOnDemand]: 251/266 looper letters, 1608 selfloop transitions, 218 changer transitions 189/2016 dead transitions. [2023-08-30 09:00:14,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 2016 transitions, 73277 flow [2023-08-30 09:00:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 09:00:14,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 09:00:14,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2174 transitions. [2023-08-30 09:00:14,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4807607253427687 [2023-08-30 09:00:14,365 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2174 transitions. [2023-08-30 09:00:14,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2174 transitions. [2023-08-30 09:00:14,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:00:14,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2174 transitions. [2023-08-30 09:00:14,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 127.88235294117646) internal successors, (2174), 17 states have internal predecessors, (2174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:00:14,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:00:14,369 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:00:14,369 INFO L175 Difference]: Start difference. First operand has 502 places, 1545 transitions, 55288 flow. Second operand 17 states and 2174 transitions. [2023-08-30 09:00:14,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 2016 transitions, 73277 flow [2023-08-30 09:00:34,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 513 places, 2016 transitions, 73008 flow, removed 16 selfloop flow, removed 5 redundant places. [2023-08-30 09:00:34,060 INFO L231 Difference]: Finished difference. Result has 520 places, 1592 transitions, 57452 flow [2023-08-30 09:00:34,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=55060, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=57452, PETRI_PLACES=520, PETRI_TRANSITIONS=1592} [2023-08-30 09:00:34,062 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 481 predicate places. [2023-08-30 09:00:34,062 INFO L495 AbstractCegarLoop]: Abstraction has has 520 places, 1592 transitions, 57452 flow [2023-08-30 09:00:34,062 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 09:00:34,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:00:34,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:00:34,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-30 09:00:34,062 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 09:00:34,063 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:00:34,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1460944016, now seen corresponding path program 5 times [2023-08-30 09:00:34,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:00:34,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124132176] [2023-08-30 09:00:34,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:00:34,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:00:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:00:34,461 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 09:00:34,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:00:34,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124132176] [2023-08-30 09:00:34,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124132176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:00:34,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:00:34,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 09:00:34,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763605000] [2023-08-30 09:00:34,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:00:34,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 09:00:34,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:00:34,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 09:00:34,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-08-30 09:00:34,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 266 [2023-08-30 09:00:34,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 1592 transitions, 57452 flow. Second operand has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:00:34,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:00:34,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 266 [2023-08-30 09:00:34,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:00:56,986 INFO L130 PetriNetUnfolder]: 17732/33506 cut-off events. [2023-08-30 09:00:56,986 INFO L131 PetriNetUnfolder]: For 1867010/1867010 co-relation queries the response was YES. [2023-08-30 09:00:57,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354385 conditions, 33506 events. 17732/33506 cut-off events. For 1867010/1867010 co-relation queries the response was YES. Maximal size of possible extension queue 2270. Compared 335395 event pairs, 10490 based on Foata normal form. 2/32374 useless extension candidates. Maximal degree in co-relation 352265. Up to 32545 conditions per place. [2023-08-30 09:00:57,817 INFO L137 encePairwiseOnDemand]: 252/266 looper letters, 1437 selfloop transitions, 238 changer transitions 9/1685 dead transitions. [2023-08-30 09:00:57,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 1685 transitions, 62833 flow [2023-08-30 09:00:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 09:00:57,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 09:00:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2696 transitions. [2023-08-30 09:00:57,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4606971975393028 [2023-08-30 09:00:57,820 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2696 transitions. [2023-08-30 09:00:57,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2696 transitions. [2023-08-30 09:00:57,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:00:57,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2696 transitions. [2023-08-30 09:00:57,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 122.54545454545455) internal successors, (2696), 22 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:00:57,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:00:57,824 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:00:57,824 INFO L175 Difference]: Start difference. First operand has 520 places, 1592 transitions, 57452 flow. Second operand 22 states and 2696 transitions. [2023-08-30 09:00:57,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 1685 transitions, 62833 flow [2023-08-30 09:01:19,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 536 places, 1685 transitions, 62734 flow, removed 30 selfloop flow, removed 5 redundant places. [2023-08-30 09:01:19,457 INFO L231 Difference]: Finished difference. Result has 541 places, 1601 transitions, 58190 flow [2023-08-30 09:01:19,458 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=57353, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1592, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=58190, PETRI_PLACES=541, PETRI_TRANSITIONS=1601} [2023-08-30 09:01:19,458 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 502 predicate places. [2023-08-30 09:01:19,458 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 1601 transitions, 58190 flow [2023-08-30 09:01:19,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 117.91666666666667) internal successors, (1415), 12 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:01:19,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:01:19,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:01:19,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-30 09:01:19,459 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 09:01:19,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:01:19,459 INFO L85 PathProgramCache]: Analyzing trace with hash 836325516, now seen corresponding path program 2 times [2023-08-30 09:01:19,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:01:19,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355976115] [2023-08-30 09:01:19,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:01:19,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:01:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:01:19,702 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 09:01:19,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:01:19,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355976115] [2023-08-30 09:01:19,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355976115] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:01:19,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:01:19,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 09:01:19,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076628815] [2023-08-30 09:01:19,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:01:19,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 09:01:19,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:01:19,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 09:01:19,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 09:01:19,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 09:01:19,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 1601 transitions, 58190 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:01:19,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:01:19,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 09:01:19,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:01:42,874 INFO L130 PetriNetUnfolder]: 17737/33453 cut-off events. [2023-08-30 09:01:42,874 INFO L131 PetriNetUnfolder]: For 1915945/1915945 co-relation queries the response was YES. [2023-08-30 09:01:43,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353425 conditions, 33453 events. 17737/33453 cut-off events. For 1915945/1915945 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 334378 event pairs, 6090 based on Foata normal form. 40/32375 useless extension candidates. Maximal degree in co-relation 352911. Up to 23954 conditions per place. [2023-08-30 09:01:43,905 INFO L137 encePairwiseOnDemand]: 248/266 looper letters, 1010 selfloop transitions, 661 changer transitions 2/1674 dead transitions. [2023-08-30 09:01:43,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 1674 transitions, 62892 flow [2023-08-30 09:01:43,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 09:01:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 09:01:43,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1786 transitions. [2023-08-30 09:01:43,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47959183673469385 [2023-08-30 09:01:43,907 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1786 transitions. [2023-08-30 09:01:43,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1786 transitions. [2023-08-30 09:01:43,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:01:43,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1786 transitions. [2023-08-30 09:01:43,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 127.57142857142857) internal successors, (1786), 14 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:01:43,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:01:43,910 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 266.0) internal successors, (3990), 15 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:01:43,911 INFO L175 Difference]: Start difference. First operand has 541 places, 1601 transitions, 58190 flow. Second operand 14 states and 1786 transitions. [2023-08-30 09:01:43,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 554 places, 1674 transitions, 62892 flow [2023-08-30 09:02:04,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 1674 transitions, 62523 flow, removed 131 selfloop flow, removed 9 redundant places. [2023-08-30 09:02:04,315 INFO L231 Difference]: Finished difference. Result has 550 places, 1632 transitions, 60873 flow [2023-08-30 09:02:04,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=57706, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=626, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=951, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=60873, PETRI_PLACES=550, PETRI_TRANSITIONS=1632} [2023-08-30 09:02:04,316 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 511 predicate places. [2023-08-30 09:02:04,316 INFO L495 AbstractCegarLoop]: Abstraction has has 550 places, 1632 transitions, 60873 flow [2023-08-30 09:02:04,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:02:04,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:02:04,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:02:04,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-30 09:02:04,317 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 09:02:04,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:02:04,317 INFO L85 PathProgramCache]: Analyzing trace with hash 838752815, now seen corresponding path program 3 times [2023-08-30 09:02:04,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:02:04,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751303847] [2023-08-30 09:02:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:02:04,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:02:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:02:04,575 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 09:02:04,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:02:04,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751303847] [2023-08-30 09:02:04,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751303847] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:02:04,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:02:04,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 09:02:04,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314987201] [2023-08-30 09:02:04,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:02:04,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 09:02:04,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:02:04,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 09:02:04,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-08-30 09:02:04,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 09:02:04,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 1632 transitions, 60873 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:02:04,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:02:04,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 09:02:04,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:02:27,459 INFO L130 PetriNetUnfolder]: 17813/33584 cut-off events. [2023-08-30 09:02:27,459 INFO L131 PetriNetUnfolder]: For 2018759/2018759 co-relation queries the response was YES. [2023-08-30 09:02:28,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364539 conditions, 33584 events. 17813/33584 cut-off events. For 2018759/2018759 co-relation queries the response was YES. Maximal size of possible extension queue 2242. Compared 335850 event pairs, 6175 based on Foata normal form. 44/32506 useless extension candidates. Maximal degree in co-relation 364048. Up to 24975 conditions per place. [2023-08-30 09:02:28,301 INFO L137 encePairwiseOnDemand]: 247/266 looper letters, 1070 selfloop transitions, 602 changer transitions 0/1673 dead transitions. [2023-08-30 09:02:28,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 558 places, 1673 transitions, 65122 flow [2023-08-30 09:02:28,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 09:02:28,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 09:02:28,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1151 transitions. [2023-08-30 09:02:28,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48078529657477026 [2023-08-30 09:02:28,303 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1151 transitions. [2023-08-30 09:02:28,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1151 transitions. [2023-08-30 09:02:28,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:02:28,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1151 transitions. [2023-08-30 09:02:28,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 127.88888888888889) internal successors, (1151), 9 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:02:28,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:02:28,305 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:02:28,305 INFO L175 Difference]: Start difference. First operand has 550 places, 1632 transitions, 60873 flow. Second operand 9 states and 1151 transitions. [2023-08-30 09:02:28,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 558 places, 1673 transitions, 65122 flow [2023-08-30 09:02:53,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 1673 transitions, 64992 flow, removed 55 selfloop flow, removed 4 redundant places. [2023-08-30 09:02:53,569 INFO L231 Difference]: Finished difference. Result has 557 places, 1653 transitions, 63388 flow [2023-08-30 09:02:53,570 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=60745, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=581, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1035, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=63388, PETRI_PLACES=557, PETRI_TRANSITIONS=1653} [2023-08-30 09:02:53,570 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 518 predicate places. [2023-08-30 09:02:53,570 INFO L495 AbstractCegarLoop]: Abstraction has has 557 places, 1653 transitions, 63388 flow [2023-08-30 09:02:53,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:02:53,570 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:02:53,571 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 09:02:53,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-30 09:02:53,571 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 09:02:53,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:02:53,571 INFO L85 PathProgramCache]: Analyzing trace with hash 839900435, now seen corresponding path program 4 times [2023-08-30 09:02:53,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:02:53,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738072624] [2023-08-30 09:02:53,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:02:53,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:02:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:02:53,804 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 09:02:53,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:02:53,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738072624] [2023-08-30 09:02:53,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738072624] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:02:53,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:02:53,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 09:02:53,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639583578] [2023-08-30 09:02:53,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:02:53,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 09:02:53,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:02:53,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 09:02:53,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 09:02:54,076 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 266 [2023-08-30 09:02:54,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 1653 transitions, 63388 flow. Second operand has 10 states, 10 states have (on average 119.1) internal successors, (1191), 10 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:02:54,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:02:54,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 266 [2023-08-30 09:02:54,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Killed by 15