./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_5-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_5-container_of.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:05:59,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:05:59,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:06:00,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:06:00,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:06:00,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:06:00,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:06:00,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:06:00,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:06:00,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:06:00,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:06:00,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:06:00,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:06:00,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:06:00,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:06:00,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:06:00,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:06:00,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:06:00,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:06:00,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:06:00,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:06:00,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:06:00,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:06:00,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:06:00,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:06:00,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:06:00,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:06:00,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:06:00,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:06:00,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:06:00,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:06:00,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:06:00,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:06:00,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:06:00,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:06:00,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:06:00,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:06:00,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:06:00,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:06:00,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:06:00,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:06:00,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:06:00,088 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:06:00,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:06:00,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:06:00,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:06:00,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:06:00,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:06:00,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:06:00,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:06:00,091 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:06:00,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:06:00,092 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:06:00,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:06:00,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:06:00,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:06:00,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:06:00,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:06:00,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:06:00,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:06:00,093 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:06:00,093 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:06:00,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:06:00,093 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:06:00,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:06:00,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:06:00,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:06:00,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:06:00,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:06:00,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:06:00,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:06:00,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:06:00,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:06:00,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:06:00,095 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:06:00,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:06:00,095 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:06:00,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:06:00,096 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:06:00,096 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:06:00,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:06:00,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:06:00,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:06:00,341 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:06:00,341 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:06:00,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2023-08-30 13:06:01,205 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:06:01,429 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:06:01,429 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2023-08-30 13:06:01,449 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9be689c9/aba7829639754f528c07623e78d2cbd4/FLAG9693f8aa7 [2023-08-30 13:06:01,459 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9be689c9/aba7829639754f528c07623e78d2cbd4 [2023-08-30 13:06:01,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:06:01,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:06:01,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:06:01,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:06:01,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:06:01,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:06:01" (1/1) ... [2023-08-30 13:06:01,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788141da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:01, skipping insertion in model container [2023-08-30 13:06:01,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:06:01" (1/1) ... [2023-08-30 13:06:01,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:06:01,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:06:01,616 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:06:02,033 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_5-container_of.i[75002,75015] [2023-08-30 13:06:02,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:06:02,075 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:06:02,083 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 13:06:02,109 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_5-container_of.i[75002,75015] [2023-08-30 13:06:02,126 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:06:02,203 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:02,203 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:02,203 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:06:02,207 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:06:02,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02 WrapperNode [2023-08-30 13:06:02,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:06:02,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:02,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:06:02,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:06:02,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,258 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-08-30 13:06:02,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:06:02,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:06:02,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:06:02,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:06:02,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,288 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:06:02,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:06:02,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:06:02,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:06:02,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (1/1) ... [2023-08-30 13:06:02,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:06:02,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:06:02,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:06:02,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:06:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:06:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:06:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:06:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 13:06:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 13:06:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:06:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 13:06:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:06:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:06:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-30 13:06:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-30 13:06:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:06:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:06:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:06:02,349 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:06:02,615 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:06:02,616 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:06:02,770 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:06:02,794 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:06:02,794 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:06:02,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:02 BoogieIcfgContainer [2023-08-30 13:06:02,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:06:02,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:06:02,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:06:02,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:06:02,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:06:01" (1/3) ... [2023-08-30 13:06:02,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a08b69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:06:02, skipping insertion in model container [2023-08-30 13:06:02,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:06:02" (2/3) ... [2023-08-30 13:06:02,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a08b69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:06:02, skipping insertion in model container [2023-08-30 13:06:02,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:02" (3/3) ... [2023-08-30 13:06:02,801 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2023-08-30 13:06:02,806 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:06:02,812 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:06:02,812 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 13:06:02,812 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:06:02,854 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 13:06:02,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 13:06:02,941 INFO L130 PetriNetUnfolder]: 8/193 cut-off events. [2023-08-30 13:06:02,941 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 13:06:02,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 193 events. 8/193 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 336 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 104. Up to 4 conditions per place. [2023-08-30 13:06:02,946 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 157 transitions, 330 flow [2023-08-30 13:06:02,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:02,954 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:06:02,964 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:02,966 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:02,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 127 transitions, 263 flow [2023-08-30 13:06:02,983 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2023-08-30 13:06:02,983 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 13:06:02,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 127 events. 2/127 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2023-08-30 13:06:02,987 INFO L119 LiptonReduction]: Number of co-enabled transitions 3360 [2023-08-30 13:06:08,053 INFO L134 LiptonReduction]: Checked pairs total: 9058 [2023-08-30 13:06:08,053 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-08-30 13:06:08,063 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:06:08,067 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;@630a57b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:06:08,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 13:06:08,070 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2023-08-30 13:06:08,070 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:06:08,070 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:08,071 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 13:06:08,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:08,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:08,074 INFO L85 PathProgramCache]: Analyzing trace with hash 521449222, now seen corresponding path program 1 times [2023-08-30 13:06:08,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:08,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146739980] [2023-08-30 13:06:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:08,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:08,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:08,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146739980] [2023-08-30 13:06:08,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146739980] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:08,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:08,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:06:08,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648388056] [2023-08-30 13:06:08,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:08,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:06:08,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:08,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:06:08,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:06:08,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 267 [2023-08-30 13:06:08,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:08,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:08,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 267 [2023-08-30 13:06:08,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:09,058 INFO L130 PetriNetUnfolder]: 215/414 cut-off events. [2023-08-30 13:06:09,058 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-08-30 13:06:09,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 414 events. 215/414 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1517 event pairs, 162 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 644. Up to 402 conditions per place. [2023-08-30 13:06:09,061 INFO L137 encePairwiseOnDemand]: 258/267 looper letters, 24 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-08-30 13:06:09,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 139 flow [2023-08-30 13:06:09,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 773 transitions. [2023-08-30 13:06:09,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48252184769038703 [2023-08-30 13:06:09,075 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 773 transitions. [2023-08-30 13:06:09,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 773 transitions. [2023-08-30 13:06:09,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:09,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 773 transitions. [2023-08-30 13:06:09,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,089 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,090 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 73 flow. Second operand 6 states and 773 transitions. [2023-08-30 13:06:09,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 139 flow [2023-08-30 13:06:09,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:09,094 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2023-08-30 13:06:09,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2023-08-30 13:06:09,099 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 13:06:09,101 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2023-08-30 13:06:09,102 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 13:06:09,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:09,102 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:06:09,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:06:09,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:09,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:09,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1014940337, now seen corresponding path program 1 times [2023-08-30 13:06:09,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:09,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429464625] [2023-08-30 13:06:09,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:09,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:09,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:09,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:09,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429464625] [2023-08-30 13:06:09,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429464625] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:09,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:09,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:09,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45261932] [2023-08-30 13:06:09,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:09,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:09,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:09,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:09,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:09,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 267 [2023-08-30 13:06:09,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,520 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:09,520 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 267 [2023-08-30 13:06:09,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:09,643 INFO L130 PetriNetUnfolder]: 201/390 cut-off events. [2023-08-30 13:06:09,643 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2023-08-30 13:06:09,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 390 events. 201/390 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1420 event pairs, 70 based on Foata normal form. 5/339 useless extension candidates. Maximal degree in co-relation 764. Up to 339 conditions per place. [2023-08-30 13:06:09,645 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 36 selfloop transitions, 11 changer transitions 0/48 dead transitions. [2023-08-30 13:06:09,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 243 flow [2023-08-30 13:06:09,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:09,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:09,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 778 transitions. [2023-08-30 13:06:09,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48564294631710364 [2023-08-30 13:06:09,647 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 778 transitions. [2023-08-30 13:06:09,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 778 transitions. [2023-08-30 13:06:09,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:09,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 778 transitions. [2023-08-30 13:06:09,654 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 13:06:09,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,657 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:09,657 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 6 states and 778 transitions. [2023-08-30 13:06:09,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 243 flow [2023-08-30 13:06:09,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 48 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:09,659 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 169 flow [2023-08-30 13:06:09,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2023-08-30 13:06:09,660 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2023-08-30 13:06:09,660 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 169 flow [2023-08-30 13:06:09,660 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 13:06:09,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:09,660 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:09,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:06:09,661 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:09,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:09,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1394183507, now seen corresponding path program 1 times [2023-08-30 13:06:09,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:09,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141137873] [2023-08-30 13:06:09,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:09,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:09,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:09,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:09,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141137873] [2023-08-30 13:06:09,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141137873] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:09,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:09,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 13:06:09,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463552781] [2023-08-30 13:06:09,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:09,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:09,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:09,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:09,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:10,018 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 267 [2023-08-30 13:06:10,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 123.16666666666667) internal successors, (739), 6 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:10,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 267 [2023-08-30 13:06:10,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:10,144 INFO L130 PetriNetUnfolder]: 189/370 cut-off events. [2023-08-30 13:06:10,144 INFO L131 PetriNetUnfolder]: For 173/173 co-relation queries the response was YES. [2023-08-30 13:06:10,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 370 events. 189/370 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1352 event pairs, 64 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 830. Up to 327 conditions per place. [2023-08-30 13:06:10,146 INFO L137 encePairwiseOnDemand]: 259/267 looper letters, 39 selfloop transitions, 11 changer transitions 0/51 dead transitions. [2023-08-30 13:06:10,146 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 51 transitions, 329 flow [2023-08-30 13:06:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 776 transitions. [2023-08-30 13:06:10,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.484394506866417 [2023-08-30 13:06:10,148 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 776 transitions. [2023-08-30 13:06:10,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 776 transitions. [2023-08-30 13:06:10,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:10,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 776 transitions. [2023-08-30 13:06:10,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.33333333333334) internal successors, (776), 6 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,152 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,152 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 169 flow. Second operand 6 states and 776 transitions. [2023-08-30 13:06:10,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 51 transitions, 329 flow [2023-08-30 13:06:10,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 51 transitions, 313 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:10,154 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 230 flow [2023-08-30 13:06:10,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=230, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2023-08-30 13:06:10,155 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 14 predicate places. [2023-08-30 13:06:10,155 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 230 flow [2023-08-30 13:06:10,155 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 13:06:10,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:10,156 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:10,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:06:10,156 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:10,156 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:10,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1884024815, now seen corresponding path program 1 times [2023-08-30 13:06:10,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:10,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133052437] [2023-08-30 13:06:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:10,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:10,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:10,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133052437] [2023-08-30 13:06:10,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133052437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:10,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:10,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:10,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275078488] [2023-08-30 13:06:10,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:10,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:10,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:10,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:10,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:10,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 13:06:10,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 230 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:10,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:10,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 13:06:10,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:11,280 INFO L130 PetriNetUnfolder]: 237/450 cut-off events. [2023-08-30 13:06:11,280 INFO L131 PetriNetUnfolder]: For 231/231 co-relation queries the response was YES. [2023-08-30 13:06:11,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 450 events. 237/450 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1705 event pairs, 41 based on Foata normal form. 8/424 useless extension candidates. Maximal degree in co-relation 1068. Up to 337 conditions per place. [2023-08-30 13:06:11,282 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 47 selfloop transitions, 25 changer transitions 0/73 dead transitions. [2023-08-30 13:06:11,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 73 transitions, 504 flow [2023-08-30 13:06:11,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:11,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:11,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1265 transitions. [2023-08-30 13:06:11,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4737827715355805 [2023-08-30 13:06:11,286 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1265 transitions. [2023-08-30 13:06:11,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1265 transitions. [2023-08-30 13:06:11,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:11,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1265 transitions. [2023-08-30 13:06:11,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.5) internal successors, (1265), 10 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,291 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,291 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 230 flow. Second operand 10 states and 1265 transitions. [2023-08-30 13:06:11,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 73 transitions, 504 flow [2023-08-30 13:06:11,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 73 transitions, 481 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-30 13:06:11,294 INFO L231 Difference]: Finished difference. Result has 65 places, 57 transitions, 394 flow [2023-08-30 13:06:11,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=394, PETRI_PLACES=65, PETRI_TRANSITIONS=57} [2023-08-30 13:06:11,294 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2023-08-30 13:06:11,295 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 57 transitions, 394 flow [2023-08-30 13:06:11,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:11,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:11,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:06:11,295 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:11,295 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:11,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1922923923, now seen corresponding path program 1 times [2023-08-30 13:06:11,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:11,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858742738] [2023-08-30 13:06:11,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:11,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:11,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:11,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858742738] [2023-08-30 13:06:11,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858742738] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:11,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:11,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:11,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529155989] [2023-08-30 13:06:11,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:11,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:11,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:11,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:11,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:11,866 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 13:06:11,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 57 transitions, 394 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:11,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:11,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 13:06:11,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:12,117 INFO L130 PetriNetUnfolder]: 261/490 cut-off events. [2023-08-30 13:06:12,117 INFO L131 PetriNetUnfolder]: For 504/504 co-relation queries the response was YES. [2023-08-30 13:06:12,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1577 conditions, 490 events. 261/490 cut-off events. For 504/504 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1902 event pairs, 64 based on Foata normal form. 4/460 useless extension candidates. Maximal degree in co-relation 1306. Up to 369 conditions per place. [2023-08-30 13:06:12,120 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 44 selfloop transitions, 34 changer transitions 0/79 dead transitions. [2023-08-30 13:06:12,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 79 transitions, 660 flow [2023-08-30 13:06:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:12,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:12,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1261 transitions. [2023-08-30 13:06:12,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4722846441947566 [2023-08-30 13:06:12,123 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1261 transitions. [2023-08-30 13:06:12,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1261 transitions. [2023-08-30 13:06:12,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:12,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1261 transitions. [2023-08-30 13:06:12,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 126.1) internal successors, (1261), 10 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,128 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,128 INFO L175 Difference]: Start difference. First operand has 65 places, 57 transitions, 394 flow. Second operand 10 states and 1261 transitions. [2023-08-30 13:06:12,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 79 transitions, 660 flow [2023-08-30 13:06:12,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 79 transitions, 611 flow, removed 7 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:12,132 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 519 flow [2023-08-30 13:06:12,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=519, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2023-08-30 13:06:12,132 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 34 predicate places. [2023-08-30 13:06:12,132 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 519 flow [2023-08-30 13:06:12,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:12,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:12,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 13:06:12,133 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:12,133 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:12,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1884061083, now seen corresponding path program 2 times [2023-08-30 13:06:12,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:12,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28633744] [2023-08-30 13:06:12,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:12,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:12,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:12,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28633744] [2023-08-30 13:06:12,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28633744] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:12,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:12,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:12,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369313985] [2023-08-30 13:06:12,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:12,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:12,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:12,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:12,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:12,697 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 13:06:12,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 519 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:12,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 13:06:12,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:12,967 INFO L130 PetriNetUnfolder]: 249/470 cut-off events. [2023-08-30 13:06:12,968 INFO L131 PetriNetUnfolder]: For 599/599 co-relation queries the response was YES. [2023-08-30 13:06:12,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1621 conditions, 470 events. 249/470 cut-off events. For 599/599 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1784 event pairs, 59 based on Foata normal form. 4/444 useless extension candidates. Maximal degree in co-relation 1540. Up to 345 conditions per place. [2023-08-30 13:06:12,970 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 49 selfloop transitions, 28 changer transitions 0/78 dead transitions. [2023-08-30 13:06:12,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 78 transitions, 706 flow [2023-08-30 13:06:12,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 13:06:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 13:06:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1017 transitions. [2023-08-30 13:06:12,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.476123595505618 [2023-08-30 13:06:12,973 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1017 transitions. [2023-08-30 13:06:12,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1017 transitions. [2023-08-30 13:06:12,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:12,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1017 transitions. [2023-08-30 13:06:12,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 127.125) internal successors, (1017), 8 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 267.0) internal successors, (2403), 9 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,977 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 267.0) internal successors, (2403), 9 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,977 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 519 flow. Second operand 8 states and 1017 transitions. [2023-08-30 13:06:12,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 78 transitions, 706 flow [2023-08-30 13:06:12,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 78 transitions, 661 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:12,981 INFO L231 Difference]: Finished difference. Result has 76 places, 66 transitions, 543 flow [2023-08-30 13:06:12,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=543, PETRI_PLACES=76, PETRI_TRANSITIONS=66} [2023-08-30 13:06:12,982 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 38 predicate places. [2023-08-30 13:06:12,982 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 66 transitions, 543 flow [2023-08-30 13:06:12,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:12,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:12,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:12,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 13:06:12,983 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:12,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:12,983 INFO L85 PathProgramCache]: Analyzing trace with hash 221128639, now seen corresponding path program 2 times [2023-08-30 13:06:12,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:12,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961947576] [2023-08-30 13:06:12,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:12,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:13,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:13,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:13,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961947576] [2023-08-30 13:06:13,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961947576] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:13,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:13,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:13,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553361374] [2023-08-30 13:06:13,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:13,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:13,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:13,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:13,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:13,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 13:06:13,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 66 transitions, 543 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:13,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 13:06:13,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:13,899 INFO L130 PetriNetUnfolder]: 321/591 cut-off events. [2023-08-30 13:06:13,899 INFO L131 PetriNetUnfolder]: For 1202/1202 co-relation queries the response was YES. [2023-08-30 13:06:13,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2203 conditions, 591 events. 321/591 cut-off events. For 1202/1202 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2386 event pairs, 91 based on Foata normal form. 8/565 useless extension candidates. Maximal degree in co-relation 2078. Up to 456 conditions per place. [2023-08-30 13:06:13,903 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 62 selfloop transitions, 42 changer transitions 0/105 dead transitions. [2023-08-30 13:06:13,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 105 transitions, 1070 flow [2023-08-30 13:06:13,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:13,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:13,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1511 transitions. [2023-08-30 13:06:13,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4715980024968789 [2023-08-30 13:06:13,906 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1511 transitions. [2023-08-30 13:06:13,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1511 transitions. [2023-08-30 13:06:13,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:13,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1511 transitions. [2023-08-30 13:06:13,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 125.91666666666667) internal successors, (1511), 12 states have internal predecessors, (1511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,913 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,913 INFO L175 Difference]: Start difference. First operand has 76 places, 66 transitions, 543 flow. Second operand 12 states and 1511 transitions. [2023-08-30 13:06:13,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 105 transitions, 1070 flow [2023-08-30 13:06:13,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 105 transitions, 1001 flow, removed 3 selfloop flow, removed 5 redundant places. [2023-08-30 13:06:13,920 INFO L231 Difference]: Finished difference. Result has 85 places, 87 transitions, 844 flow [2023-08-30 13:06:13,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=844, PETRI_PLACES=85, PETRI_TRANSITIONS=87} [2023-08-30 13:06:13,921 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 47 predicate places. [2023-08-30 13:06:13,921 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 87 transitions, 844 flow [2023-08-30 13:06:13,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:13,922 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:13,922 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:13,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 13:06:13,922 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 13:06:13,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:13,923 INFO L85 PathProgramCache]: Analyzing trace with hash 221128637, now seen corresponding path program 3 times [2023-08-30 13:06:13,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:13,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359456465] [2023-08-30 13:06:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:13,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:14,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:14,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:14,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359456465] [2023-08-30 13:06:14,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359456465] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:14,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:14,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:14,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753388942] [2023-08-30 13:06:14,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:14,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:14,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:14,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:14,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:14,523 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 13:06:14,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 87 transitions, 844 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:14,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 13:06:14,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:14,883 INFO L130 PetriNetUnfolder]: 309/571 cut-off events. [2023-08-30 13:06:14,884 INFO L131 PetriNetUnfolder]: For 1305/1305 co-relation queries the response was YES. [2023-08-30 13:06:14,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 571 events. 309/571 cut-off events. For 1305/1305 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2295 event pairs, 88 based on Foata normal form. 4/545 useless extension candidates. Maximal degree in co-relation 2128. Up to 462 conditions per place. [2023-08-30 13:06:14,887 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 66 selfloop transitions, 36 changer transitions 0/103 dead transitions. [2023-08-30 13:06:14,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 103 transitions, 1086 flow [2023-08-30 13:06:14,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:14,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:14,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1628 transitions. [2023-08-30 13:06:14,893 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4690290982425814 [2023-08-30 13:06:14,893 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1628 transitions. [2023-08-30 13:06:14,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1628 transitions. [2023-08-30 13:06:14,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:14,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1628 transitions. [2023-08-30 13:06:14,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 125.23076923076923) internal successors, (1628), 13 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,903 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,903 INFO L175 Difference]: Start difference. First operand has 85 places, 87 transitions, 844 flow. Second operand 13 states and 1628 transitions. [2023-08-30 13:06:14,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 103 transitions, 1086 flow [2023-08-30 13:06:14,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 103 transitions, 1052 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:14,909 INFO L231 Difference]: Finished difference. Result has 96 places, 88 transitions, 906 flow [2023-08-30 13:06:14,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=906, PETRI_PLACES=96, PETRI_TRANSITIONS=88} [2023-08-30 13:06:14,911 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 58 predicate places. [2023-08-30 13:06:14,912 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 88 transitions, 906 flow [2023-08-30 13:06:14,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:14,912 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:14,912 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:14,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 13:06:14,913 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 13:06:14,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash 221986099, now seen corresponding path program 3 times [2023-08-30 13:06:14,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:14,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084757841] [2023-08-30 13:06:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:14,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:15,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:15,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:15,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084757841] [2023-08-30 13:06:15,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084757841] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:15,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:15,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:15,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47130434] [2023-08-30 13:06:15,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:15,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:15,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:15,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:15,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:15,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 13:06:15,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 906 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:15,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 13:06:15,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:15,948 INFO L130 PetriNetUnfolder]: 285/531 cut-off events. [2023-08-30 13:06:15,949 INFO L131 PetriNetUnfolder]: For 1476/1476 co-relation queries the response was YES. [2023-08-30 13:06:15,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2211 conditions, 531 events. 285/531 cut-off events. For 1476/1476 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2112 event pairs, 68 based on Foata normal form. 8/521 useless extension candidates. Maximal degree in co-relation 2136. Up to 372 conditions per place. [2023-08-30 13:06:15,951 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 59 selfloop transitions, 52 changer transitions 2/114 dead transitions. [2023-08-30 13:06:15,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 114 transitions, 1278 flow [2023-08-30 13:06:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:15,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:15,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1755 transitions. [2023-08-30 13:06:15,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4695024077046549 [2023-08-30 13:06:15,955 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1755 transitions. [2023-08-30 13:06:15,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1755 transitions. [2023-08-30 13:06:15,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:15,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1755 transitions. [2023-08-30 13:06:15,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 125.35714285714286) internal successors, (1755), 14 states have internal predecessors, (1755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,963 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,963 INFO L175 Difference]: Start difference. First operand has 96 places, 88 transitions, 906 flow. Second operand 14 states and 1755 transitions. [2023-08-30 13:06:15,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 114 transitions, 1278 flow [2023-08-30 13:06:15,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 114 transitions, 1178 flow, removed 4 selfloop flow, removed 11 redundant places. [2023-08-30 13:06:15,970 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 983 flow [2023-08-30 13:06:15,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=983, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2023-08-30 13:06:15,971 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 62 predicate places. [2023-08-30 13:06:15,971 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 983 flow [2023-08-30 13:06:15,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:15,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:15,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:15,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 13:06:15,972 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:15,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:15,972 INFO L85 PathProgramCache]: Analyzing trace with hash 222022367, now seen corresponding path program 4 times [2023-08-30 13:06:15,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:15,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616517183] [2023-08-30 13:06:15,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:15,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:16,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:16,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616517183] [2023-08-30 13:06:16,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616517183] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:16,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:16,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 13:06:16,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906813037] [2023-08-30 13:06:16,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:16,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 13:06:16,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:16,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 13:06:16,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-08-30 13:06:16,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 267 [2023-08-30 13:06:16,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 983 flow. Second operand has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:16,765 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:16,765 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 267 [2023-08-30 13:06:16,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:17,009 INFO L130 PetriNetUnfolder]: 249/465 cut-off events. [2023-08-30 13:06:17,009 INFO L131 PetriNetUnfolder]: For 1523/1523 co-relation queries the response was YES. [2023-08-30 13:06:17,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2049 conditions, 465 events. 249/465 cut-off events. For 1523/1523 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1820 event pairs, 81 based on Foata normal form. 4/455 useless extension candidates. Maximal degree in co-relation 1968. Up to 374 conditions per place. [2023-08-30 13:06:17,012 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 69 selfloop transitions, 29 changer transitions 0/99 dead transitions. [2023-08-30 13:06:17,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 99 transitions, 1191 flow [2023-08-30 13:06:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:06:17,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:06:17,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 888 transitions. [2023-08-30 13:06:17,014 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4751203852327448 [2023-08-30 13:06:17,014 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 888 transitions. [2023-08-30 13:06:17,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 888 transitions. [2023-08-30 13:06:17,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:17,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 888 transitions. [2023-08-30 13:06:17,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 126.85714285714286) internal successors, (888), 7 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,019 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,019 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 983 flow. Second operand 7 states and 888 transitions. [2023-08-30 13:06:17,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 99 transitions, 1191 flow [2023-08-30 13:06:17,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 99 transitions, 1114 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:17,027 INFO L231 Difference]: Finished difference. Result has 100 places, 93 transitions, 974 flow [2023-08-30 13:06:17,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=974, PETRI_PLACES=100, PETRI_TRANSITIONS=93} [2023-08-30 13:06:17,028 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 62 predicate places. [2023-08-30 13:06:17,028 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 93 transitions, 974 flow [2023-08-30 13:06:17,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 121.0) internal successors, (1089), 9 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:17,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:17,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 13:06:17,029 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:17,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:17,029 INFO L85 PathProgramCache]: Analyzing trace with hash 295827702, now seen corresponding path program 1 times [2023-08-30 13:06:17,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:17,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242219812] [2023-08-30 13:06:17,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:17,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:17,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:17,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:17,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242219812] [2023-08-30 13:06:17,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242219812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:17,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:17,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:17,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409318789] [2023-08-30 13:06:17,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:17,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:17,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:17,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:17,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:17,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 267 [2023-08-30 13:06:17,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 93 transitions, 974 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:17,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 267 [2023-08-30 13:06:17,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:17,696 INFO L130 PetriNetUnfolder]: 317/638 cut-off events. [2023-08-30 13:06:17,697 INFO L131 PetriNetUnfolder]: For 1667/1667 co-relation queries the response was YES. [2023-08-30 13:06:17,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2532 conditions, 638 events. 317/638 cut-off events. For 1667/1667 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2914 event pairs, 45 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 2453. Up to 204 conditions per place. [2023-08-30 13:06:17,700 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 101 selfloop transitions, 34 changer transitions 3/140 dead transitions. [2023-08-30 13:06:17,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 140 transitions, 1400 flow [2023-08-30 13:06:17,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:17,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:17,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1228 transitions. [2023-08-30 13:06:17,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5110278818143986 [2023-08-30 13:06:17,703 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1228 transitions. [2023-08-30 13:06:17,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1228 transitions. [2023-08-30 13:06:17,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:17,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1228 transitions. [2023-08-30 13:06:17,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 136.44444444444446) internal successors, (1228), 9 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,715 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:17,715 INFO L175 Difference]: Start difference. First operand has 100 places, 93 transitions, 974 flow. Second operand 9 states and 1228 transitions. [2023-08-30 13:06:17,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 140 transitions, 1400 flow [2023-08-30 13:06:17,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 140 transitions, 1342 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:17,722 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 1059 flow [2023-08-30 13:06:17,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1059, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2023-08-30 13:06:17,722 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 67 predicate places. [2023-08-30 13:06:17,723 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 1059 flow [2023-08-30 13:06:17,723 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 13:06:17,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:17,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:17,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 13:06:17,723 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:17,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:17,724 INFO L85 PathProgramCache]: Analyzing trace with hash 990507607, now seen corresponding path program 1 times [2023-08-30 13:06:17,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:17,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255765790] [2023-08-30 13:06:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:17,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:18,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:18,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255765790] [2023-08-30 13:06:18,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255765790] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:18,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:18,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:18,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232498310] [2023-08-30 13:06:18,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:18,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:18,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:18,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:18,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:18,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:18,429 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 1059 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:18,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:18,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:18,960 INFO L130 PetriNetUnfolder]: 405/841 cut-off events. [2023-08-30 13:06:18,960 INFO L131 PetriNetUnfolder]: For 3717/3717 co-relation queries the response was YES. [2023-08-30 13:06:18,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3442 conditions, 841 events. 405/841 cut-off events. For 3717/3717 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4251 event pairs, 53 based on Foata normal form. 10/851 useless extension candidates. Maximal degree in co-relation 3361. Up to 371 conditions per place. [2023-08-30 13:06:18,964 INFO L137 encePairwiseOnDemand]: 253/267 looper letters, 78 selfloop transitions, 77 changer transitions 8/164 dead transitions. [2023-08-30 13:06:18,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 164 transitions, 1745 flow [2023-08-30 13:06:18,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 13:06:18,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 13:06:18,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2369 transitions. [2023-08-30 13:06:18,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4669820618963138 [2023-08-30 13:06:18,968 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2369 transitions. [2023-08-30 13:06:18,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2369 transitions. [2023-08-30 13:06:18,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:18,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2369 transitions. [2023-08-30 13:06:18,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 124.6842105263158) internal successors, (2369), 19 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,976 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:18,976 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 1059 flow. Second operand 19 states and 2369 transitions. [2023-08-30 13:06:18,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 164 transitions, 1745 flow [2023-08-30 13:06:18,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 164 transitions, 1699 flow, removed 11 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:18,986 INFO L231 Difference]: Finished difference. Result has 126 places, 123 transitions, 1494 flow [2023-08-30 13:06:18,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1017, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1494, PETRI_PLACES=126, PETRI_TRANSITIONS=123} [2023-08-30 13:06:18,987 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 88 predicate places. [2023-08-30 13:06:18,987 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 123 transitions, 1494 flow [2023-08-30 13:06:18,987 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 13:06:18,987 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:18,987 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:18,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 13:06:18,988 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:18,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:18,988 INFO L85 PathProgramCache]: Analyzing trace with hash 292515043, now seen corresponding path program 2 times [2023-08-30 13:06:18,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:18,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070302845] [2023-08-30 13:06:18,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:18,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:19,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:19,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070302845] [2023-08-30 13:06:19,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070302845] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:19,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:19,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783935031] [2023-08-30 13:06:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:19,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:19,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:19,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:19,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:19,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:19,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 123 transitions, 1494 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:19,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:19,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:19,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:20,351 INFO L130 PetriNetUnfolder]: 484/1054 cut-off events. [2023-08-30 13:06:20,352 INFO L131 PetriNetUnfolder]: For 6012/6012 co-relation queries the response was YES. [2023-08-30 13:06:20,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4714 conditions, 1054 events. 484/1054 cut-off events. For 6012/6012 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5946 event pairs, 75 based on Foata normal form. 15/1069 useless extension candidates. Maximal degree in co-relation 4354. Up to 233 conditions per place. [2023-08-30 13:06:20,357 INFO L137 encePairwiseOnDemand]: 253/267 looper letters, 104 selfloop transitions, 104 changer transitions 12/221 dead transitions. [2023-08-30 13:06:20,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 221 transitions, 2537 flow [2023-08-30 13:06:20,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 13:06:20,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 13:06:20,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2996 transitions. [2023-08-30 13:06:20,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4675405742821473 [2023-08-30 13:06:20,361 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2996 transitions. [2023-08-30 13:06:20,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2996 transitions. [2023-08-30 13:06:20,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:20,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2996 transitions. [2023-08-30 13:06:20,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 124.83333333333333) internal successors, (2996), 24 states have internal predecessors, (2996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 267.0) internal successors, (6675), 25 states have internal predecessors, (6675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,370 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 267.0) internal successors, (6675), 25 states have internal predecessors, (6675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:20,370 INFO L175 Difference]: Start difference. First operand has 126 places, 123 transitions, 1494 flow. Second operand 24 states and 2996 transitions. [2023-08-30 13:06:20,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 221 transitions, 2537 flow [2023-08-30 13:06:20,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 221 transitions, 2464 flow, removed 18 selfloop flow, removed 5 redundant places. [2023-08-30 13:06:20,389 INFO L231 Difference]: Finished difference. Result has 149 places, 155 transitions, 2058 flow [2023-08-30 13:06:20,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1438, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2058, PETRI_PLACES=149, PETRI_TRANSITIONS=155} [2023-08-30 13:06:20,389 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 111 predicate places. [2023-08-30 13:06:20,389 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 155 transitions, 2058 flow [2023-08-30 13:06:20,390 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 13:06:20,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:20,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:20,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 13:06:20,390 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:20,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:20,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1756700825, now seen corresponding path program 1 times [2023-08-30 13:06:20,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:20,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264343042] [2023-08-30 13:06:20,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:20,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:20,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:20,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264343042] [2023-08-30 13:06:20,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264343042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:20,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:20,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:20,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646544413] [2023-08-30 13:06:20,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:20,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:20,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:20,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:20,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:21,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:21,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 155 transitions, 2058 flow. Second operand has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:21,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:21,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:21,894 INFO L130 PetriNetUnfolder]: 528/1145 cut-off events. [2023-08-30 13:06:21,894 INFO L131 PetriNetUnfolder]: For 7990/7990 co-relation queries the response was YES. [2023-08-30 13:06:21,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5640 conditions, 1145 events. 528/1145 cut-off events. For 7990/7990 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 6578 event pairs, 188 based on Foata normal form. 4/1149 useless extension candidates. Maximal degree in co-relation 5158. Up to 824 conditions per place. [2023-08-30 13:06:21,901 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 118 selfloop transitions, 69 changer transitions 15/203 dead transitions. [2023-08-30 13:06:21,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 203 transitions, 2976 flow [2023-08-30 13:06:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:21,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:21,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1623 transitions. [2023-08-30 13:06:21,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4675885911840968 [2023-08-30 13:06:21,903 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1623 transitions. [2023-08-30 13:06:21,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1623 transitions. [2023-08-30 13:06:21,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:21,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1623 transitions. [2023-08-30 13:06:21,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 124.84615384615384) internal successors, (1623), 13 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,923 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,923 INFO L175 Difference]: Start difference. First operand has 149 places, 155 transitions, 2058 flow. Second operand 13 states and 1623 transitions. [2023-08-30 13:06:21,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 203 transitions, 2976 flow [2023-08-30 13:06:21,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 203 transitions, 2815 flow, removed 36 selfloop flow, removed 8 redundant places. [2023-08-30 13:06:21,947 INFO L231 Difference]: Finished difference. Result has 159 places, 169 transitions, 2397 flow [2023-08-30 13:06:21,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2397, PETRI_PLACES=159, PETRI_TRANSITIONS=169} [2023-08-30 13:06:21,947 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 121 predicate places. [2023-08-30 13:06:21,948 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 169 transitions, 2397 flow [2023-08-30 13:06:21,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:21,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:21,948 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:21,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 13:06:21,948 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:21,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:21,949 INFO L85 PathProgramCache]: Analyzing trace with hash 748140182, now seen corresponding path program 2 times [2023-08-30 13:06:21,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:21,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566741886] [2023-08-30 13:06:21,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:21,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:22,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:22,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:22,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566741886] [2023-08-30 13:06:22,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566741886] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:22,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:22,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:22,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701942744] [2023-08-30 13:06:22,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:22,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:22,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:22,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:22,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:22,314 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 267 [2023-08-30 13:06:22,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 169 transitions, 2397 flow. Second operand has 7 states, 7 states have (on average 128.57142857142858) internal successors, (900), 7 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,314 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:22,314 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 267 [2023-08-30 13:06:22,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:22,643 INFO L130 PetriNetUnfolder]: 545/1257 cut-off events. [2023-08-30 13:06:22,644 INFO L131 PetriNetUnfolder]: For 9224/9269 co-relation queries the response was YES. [2023-08-30 13:06:22,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6139 conditions, 1257 events. 545/1257 cut-off events. For 9224/9269 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7889 event pairs, 212 based on Foata normal form. 19/1276 useless extension candidates. Maximal degree in co-relation 5983. Up to 548 conditions per place. [2023-08-30 13:06:22,651 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 184 selfloop transitions, 38 changer transitions 1/229 dead transitions. [2023-08-30 13:06:22,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 229 transitions, 3179 flow [2023-08-30 13:06:22,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:06:22,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:06:22,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1236 transitions. [2023-08-30 13:06:22,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5143570536828964 [2023-08-30 13:06:22,652 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1236 transitions. [2023-08-30 13:06:22,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1236 transitions. [2023-08-30 13:06:22,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:22,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1236 transitions. [2023-08-30 13:06:22,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 137.33333333333334) internal successors, (1236), 9 states have internal predecessors, (1236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,656 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,656 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:22,656 INFO L175 Difference]: Start difference. First operand has 159 places, 169 transitions, 2397 flow. Second operand 9 states and 1236 transitions. [2023-08-30 13:06:22,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 229 transitions, 3179 flow [2023-08-30 13:06:22,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 229 transitions, 3129 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:22,686 INFO L231 Difference]: Finished difference. Result has 160 places, 175 transitions, 2521 flow [2023-08-30 13:06:22,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2351, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2521, PETRI_PLACES=160, PETRI_TRANSITIONS=175} [2023-08-30 13:06:22,686 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 122 predicate places. [2023-08-30 13:06:22,686 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 175 transitions, 2521 flow [2023-08-30 13:06:22,687 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 13:06:22,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:22,687 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:22,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 13:06:22,687 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 13:06:22,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:22,688 INFO L85 PathProgramCache]: Analyzing trace with hash 640261112, now seen corresponding path program 3 times [2023-08-30 13:06:22,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:22,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840770372] [2023-08-30 13:06:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:22,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:23,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:23,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:23,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840770372] [2023-08-30 13:06:23,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840770372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:23,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:23,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:23,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671820595] [2023-08-30 13:06:23,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:23,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:23,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:23,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:23,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:23,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 13:06:23,387 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 175 transitions, 2521 flow. Second operand has 10 states, 10 states have (on average 118.1) internal successors, (1181), 10 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:23,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 13:06:23,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:23,852 INFO L130 PetriNetUnfolder]: 560/1273 cut-off events. [2023-08-30 13:06:23,852 INFO L131 PetriNetUnfolder]: For 10341/10341 co-relation queries the response was YES. [2023-08-30 13:06:23,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6405 conditions, 1273 events. 560/1273 cut-off events. For 10341/10341 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 7896 event pairs, 221 based on Foata normal form. 5/1278 useless extension candidates. Maximal degree in co-relation 5858. Up to 870 conditions per place. [2023-08-30 13:06:23,864 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 159 selfloop transitions, 46 changer transitions 3/209 dead transitions. [2023-08-30 13:06:23,864 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 209 transitions, 3088 flow [2023-08-30 13:06:23,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:23,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:23,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1485 transitions. [2023-08-30 13:06:23,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46348314606741575 [2023-08-30 13:06:23,866 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1485 transitions. [2023-08-30 13:06:23,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1485 transitions. [2023-08-30 13:06:23,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:23,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1485 transitions. [2023-08-30 13:06:23,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 123.75) internal successors, (1485), 12 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,872 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,872 INFO L175 Difference]: Start difference. First operand has 160 places, 175 transitions, 2521 flow. Second operand 12 states and 1485 transitions. [2023-08-30 13:06:23,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 209 transitions, 3088 flow [2023-08-30 13:06:23,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 209 transitions, 3036 flow, removed 11 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:23,906 INFO L231 Difference]: Finished difference. Result has 169 places, 178 transitions, 2615 flow [2023-08-30 13:06:23,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2469, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2615, PETRI_PLACES=169, PETRI_TRANSITIONS=178} [2023-08-30 13:06:23,907 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 131 predicate places. [2023-08-30 13:06:23,907 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 178 transitions, 2615 flow [2023-08-30 13:06:23,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 118.1) internal successors, (1181), 10 states have internal predecessors, (1181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:23,908 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:23,908 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:23,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 13:06:23,908 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:23,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:23,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1357731734, now seen corresponding path program 4 times [2023-08-30 13:06:23,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:23,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194129725] [2023-08-30 13:06:23,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:23,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:24,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:24,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:24,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194129725] [2023-08-30 13:06:24,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194129725] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:24,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:24,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:06:24,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568563115] [2023-08-30 13:06:24,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:24,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:06:24,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:24,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:06:24,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:06:24,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 267 [2023-08-30 13:06:24,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 178 transitions, 2615 flow. Second operand has 7 states, 7 states have (on average 130.57142857142858) internal successors, (914), 7 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:24,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 267 [2023-08-30 13:06:24,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:24,398 INFO L130 PetriNetUnfolder]: 349/894 cut-off events. [2023-08-30 13:06:24,399 INFO L131 PetriNetUnfolder]: For 7847/7847 co-relation queries the response was YES. [2023-08-30 13:06:24,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4323 conditions, 894 events. 349/894 cut-off events. For 7847/7847 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5489 event pairs, 148 based on Foata normal form. 36/930 useless extension candidates. Maximal degree in co-relation 4132. Up to 506 conditions per place. [2023-08-30 13:06:24,403 INFO L137 encePairwiseOnDemand]: 260/267 looper letters, 123 selfloop transitions, 18 changer transitions 0/147 dead transitions. [2023-08-30 13:06:24,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 147 transitions, 2200 flow [2023-08-30 13:06:24,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:24,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:24,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 817 transitions. [2023-08-30 13:06:24,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5099875156054932 [2023-08-30 13:06:24,405 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 817 transitions. [2023-08-30 13:06:24,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 817 transitions. [2023-08-30 13:06:24,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:24,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 817 transitions. [2023-08-30 13:06:24,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,407 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,407 INFO L175 Difference]: Start difference. First operand has 169 places, 178 transitions, 2615 flow. Second operand 6 states and 817 transitions. [2023-08-30 13:06:24,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 147 transitions, 2200 flow [2023-08-30 13:06:24,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 147 transitions, 1963 flow, removed 36 selfloop flow, removed 21 redundant places. [2023-08-30 13:06:24,425 INFO L231 Difference]: Finished difference. Result has 149 places, 134 transitions, 1628 flow [2023-08-30 13:06:24,425 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1546, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1628, PETRI_PLACES=149, PETRI_TRANSITIONS=134} [2023-08-30 13:06:24,426 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 111 predicate places. [2023-08-30 13:06:24,426 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 134 transitions, 1628 flow [2023-08-30 13:06:24,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 130.57142857142858) internal successors, (914), 7 states have internal predecessors, (914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:24,426 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:24,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:24,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 13:06:24,426 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:24,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:24,426 INFO L85 PathProgramCache]: Analyzing trace with hash 749048795, now seen corresponding path program 2 times [2023-08-30 13:06:24,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:24,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648517401] [2023-08-30 13:06:24,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:24,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:24,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:24,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648517401] [2023-08-30 13:06:24,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648517401] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:24,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:24,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:24,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30367509] [2023-08-30 13:06:24,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:24,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:24,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:24,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:24,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:25,246 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:25,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 134 transitions, 1628 flow. Second operand has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:25,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:25,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:25,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:25,774 INFO L130 PetriNetUnfolder]: 364/908 cut-off events. [2023-08-30 13:06:25,775 INFO L131 PetriNetUnfolder]: For 5992/5992 co-relation queries the response was YES. [2023-08-30 13:06:25,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4212 conditions, 908 events. 364/908 cut-off events. For 5992/5992 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5400 event pairs, 167 based on Foata normal form. 4/912 useless extension candidates. Maximal degree in co-relation 3970. Up to 713 conditions per place. [2023-08-30 13:06:25,779 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 106 selfloop transitions, 42 changer transitions 11/160 dead transitions. [2023-08-30 13:06:25,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 160 transitions, 2104 flow [2023-08-30 13:06:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:25,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1741 transitions. [2023-08-30 13:06:25,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46575708935259497 [2023-08-30 13:06:25,781 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1741 transitions. [2023-08-30 13:06:25,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1741 transitions. [2023-08-30 13:06:25,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:25,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1741 transitions. [2023-08-30 13:06:25,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 124.35714285714286) internal successors, (1741), 14 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:25,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:25,813 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:25,813 INFO L175 Difference]: Start difference. First operand has 149 places, 134 transitions, 1628 flow. Second operand 14 states and 1741 transitions. [2023-08-30 13:06:25,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 160 transitions, 2104 flow [2023-08-30 13:06:25,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 160 transitions, 2061 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:25,827 INFO L231 Difference]: Finished difference. Result has 160 places, 132 transitions, 1641 flow [2023-08-30 13:06:25,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1589, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1641, PETRI_PLACES=160, PETRI_TRANSITIONS=132} [2023-08-30 13:06:25,827 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 122 predicate places. [2023-08-30 13:06:25,827 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 132 transitions, 1641 flow [2023-08-30 13:06:25,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:25,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:25,828 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:25,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 13:06:25,828 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:25,829 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:25,829 INFO L85 PathProgramCache]: Analyzing trace with hash 518668265, now seen corresponding path program 3 times [2023-08-30 13:06:25,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:25,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493279525] [2023-08-30 13:06:25,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:25,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:26,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:26,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493279525] [2023-08-30 13:06:26,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493279525] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:26,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:26,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:26,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818185170] [2023-08-30 13:06:26,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:26,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:26,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:26,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:26,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:26,673 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:26,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 132 transitions, 1641 flow. Second operand has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:26,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:26,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:26,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:27,325 INFO L130 PetriNetUnfolder]: 359/905 cut-off events. [2023-08-30 13:06:27,325 INFO L131 PetriNetUnfolder]: For 5889/5889 co-relation queries the response was YES. [2023-08-30 13:06:27,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4249 conditions, 905 events. 359/905 cut-off events. For 5889/5889 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5426 event pairs, 134 based on Foata normal form. 4/909 useless extension candidates. Maximal degree in co-relation 4157. Up to 681 conditions per place. [2023-08-30 13:06:27,330 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 108 selfloop transitions, 54 changer transitions 3/166 dead transitions. [2023-08-30 13:06:27,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 166 transitions, 2176 flow [2023-08-30 13:06:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 13:06:27,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 13:06:27,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2229 transitions. [2023-08-30 13:06:27,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4637952559300874 [2023-08-30 13:06:27,333 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2229 transitions. [2023-08-30 13:06:27,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2229 transitions. [2023-08-30 13:06:27,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:27,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2229 transitions. [2023-08-30 13:06:27,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 123.83333333333333) internal successors, (2229), 18 states have internal predecessors, (2229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,340 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,341 INFO L175 Difference]: Start difference. First operand has 160 places, 132 transitions, 1641 flow. Second operand 18 states and 2229 transitions. [2023-08-30 13:06:27,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 166 transitions, 2176 flow [2023-08-30 13:06:27,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 166 transitions, 2071 flow, removed 13 selfloop flow, removed 12 redundant places. [2023-08-30 13:06:27,356 INFO L231 Difference]: Finished difference. Result has 167 places, 139 transitions, 1765 flow [2023-08-30 13:06:27,356 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1542, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1765, PETRI_PLACES=167, PETRI_TRANSITIONS=139} [2023-08-30 13:06:27,357 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 129 predicate places. [2023-08-30 13:06:27,357 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 139 transitions, 1765 flow [2023-08-30 13:06:27,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0) internal successors, (1320), 11 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:27,357 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:27,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:27,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 13:06:27,358 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:27,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:27,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2051198523, now seen corresponding path program 3 times [2023-08-30 13:06:27,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:27,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608095174] [2023-08-30 13:06:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:27,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:27,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:27,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:27,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608095174] [2023-08-30 13:06:27,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608095174] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:27,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:27,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 13:06:27,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677801095] [2023-08-30 13:06:27,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:27,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 13:06:27,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:27,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 13:06:27,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 13:06:28,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:28,082 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 139 transitions, 1765 flow. Second operand has 10 states, 10 states have (on average 120.1) internal successors, (1201), 10 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:28,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:28,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:28,552 INFO L130 PetriNetUnfolder]: 383/965 cut-off events. [2023-08-30 13:06:28,553 INFO L131 PetriNetUnfolder]: For 6581/6581 co-relation queries the response was YES. [2023-08-30 13:06:28,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4669 conditions, 965 events. 383/965 cut-off events. For 6581/6581 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5944 event pairs, 109 based on Foata normal form. 5/970 useless extension candidates. Maximal degree in co-relation 4428. Up to 599 conditions per place. [2023-08-30 13:06:28,557 INFO L137 encePairwiseOnDemand]: 252/267 looper letters, 105 selfloop transitions, 67 changer transitions 3/176 dead transitions. [2023-08-30 13:06:28,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 176 transitions, 2350 flow [2023-08-30 13:06:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:28,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1633 transitions. [2023-08-30 13:06:28,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47046960530106596 [2023-08-30 13:06:28,560 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1633 transitions. [2023-08-30 13:06:28,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1633 transitions. [2023-08-30 13:06:28,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:28,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1633 transitions. [2023-08-30 13:06:28,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 125.61538461538461) internal successors, (1633), 13 states have internal predecessors, (1633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,564 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,564 INFO L175 Difference]: Start difference. First operand has 167 places, 139 transitions, 1765 flow. Second operand 13 states and 1633 transitions. [2023-08-30 13:06:28,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 176 transitions, 2350 flow [2023-08-30 13:06:28,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 176 transitions, 2258 flow, removed 7 selfloop flow, removed 12 redundant places. [2023-08-30 13:06:28,581 INFO L231 Difference]: Finished difference. Result has 170 places, 149 transitions, 1979 flow [2023-08-30 13:06:28,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1653, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1979, PETRI_PLACES=170, PETRI_TRANSITIONS=149} [2023-08-30 13:06:28,581 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2023-08-30 13:06:28,582 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 149 transitions, 1979 flow [2023-08-30 13:06:28,582 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 13:06:28,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:28,582 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:28,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 13:06:28,582 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 13:06:28,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:28,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1421320481, now seen corresponding path program 4 times [2023-08-30 13:06:28,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:28,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185896029] [2023-08-30 13:06:28,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:28,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:28,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:28,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:28,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185896029] [2023-08-30 13:06:28,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185896029] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:28,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:28,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:28,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745490259] [2023-08-30 13:06:28,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:28,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:28,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:28,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:28,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:28,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 267 [2023-08-30 13:06:28,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 149 transitions, 1979 flow. Second operand has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:28,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 267 [2023-08-30 13:06:28,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:28,976 INFO L130 PetriNetUnfolder]: 238/670 cut-off events. [2023-08-30 13:06:28,976 INFO L131 PetriNetUnfolder]: For 4732/4732 co-relation queries the response was YES. [2023-08-30 13:06:28,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3188 conditions, 670 events. 238/670 cut-off events. For 4732/4732 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4003 event pairs, 74 based on Foata normal form. 8/677 useless extension candidates. Maximal degree in co-relation 3125. Up to 295 conditions per place. [2023-08-30 13:06:28,979 INFO L137 encePairwiseOnDemand]: 260/267 looper letters, 97 selfloop transitions, 22 changer transitions 1/127 dead transitions. [2023-08-30 13:06:28,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 127 transitions, 1782 flow [2023-08-30 13:06:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:28,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 818 transitions. [2023-08-30 13:06:28,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5106117353308365 [2023-08-30 13:06:28,981 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 818 transitions. [2023-08-30 13:06:28,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 818 transitions. [2023-08-30 13:06:28,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:28,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 818 transitions. [2023-08-30 13:06:28,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 136.33333333333334) internal successors, (818), 6 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,983 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,983 INFO L175 Difference]: Start difference. First operand has 170 places, 149 transitions, 1979 flow. Second operand 6 states and 818 transitions. [2023-08-30 13:06:28,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 127 transitions, 1782 flow [2023-08-30 13:06:28,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 127 transitions, 1604 flow, removed 22 selfloop flow, removed 24 redundant places. [2023-08-30 13:06:28,996 INFO L231 Difference]: Finished difference. Result has 143 places, 114 transitions, 1343 flow [2023-08-30 13:06:28,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1343, PETRI_PLACES=143, PETRI_TRANSITIONS=114} [2023-08-30 13:06:28,996 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 105 predicate places. [2023-08-30 13:06:28,996 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 114 transitions, 1343 flow [2023-08-30 13:06:28,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.83333333333334) internal successors, (785), 6 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:28,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:28,997 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:28,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 13:06:28,997 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 13:06:28,997 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:28,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1552931986, now seen corresponding path program 1 times [2023-08-30 13:06:28,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:28,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795620682] [2023-08-30 13:06:28,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:28,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:29,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:29,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795620682] [2023-08-30 13:06:29,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795620682] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:29,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:29,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:29,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261756311] [2023-08-30 13:06:29,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:29,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:29,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:29,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:29,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:29,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 13:06:29,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 114 transitions, 1343 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:29,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:29,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 13:06:29,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:30,246 INFO L130 PetriNetUnfolder]: 255/697 cut-off events. [2023-08-30 13:06:30,247 INFO L131 PetriNetUnfolder]: For 3645/3645 co-relation queries the response was YES. [2023-08-30 13:06:30,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3125 conditions, 697 events. 255/697 cut-off events. For 3645/3645 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4074 event pairs, 126 based on Foata normal form. 3/700 useless extension candidates. Maximal degree in co-relation 2879. Up to 365 conditions per place. [2023-08-30 13:06:30,249 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 104 selfloop transitions, 35 changer transitions 3/143 dead transitions. [2023-08-30 13:06:30,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 143 transitions, 1742 flow [2023-08-30 13:06:30,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:30,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1369 transitions. [2023-08-30 13:06:30,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46612189308818525 [2023-08-30 13:06:30,262 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1369 transitions. [2023-08-30 13:06:30,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1369 transitions. [2023-08-30 13:06:30,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:30,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1369 transitions. [2023-08-30 13:06:30,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 124.45454545454545) internal successors, (1369), 11 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:30,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:30,266 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:30,266 INFO L175 Difference]: Start difference. First operand has 143 places, 114 transitions, 1343 flow. Second operand 11 states and 1369 transitions. [2023-08-30 13:06:30,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 143 transitions, 1742 flow [2023-08-30 13:06:30,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 143 transitions, 1705 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-08-30 13:06:30,276 INFO L231 Difference]: Finished difference. Result has 149 places, 112 transitions, 1357 flow [2023-08-30 13:06:30,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1357, PETRI_PLACES=149, PETRI_TRANSITIONS=112} [2023-08-30 13:06:30,276 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 111 predicate places. [2023-08-30 13:06:30,276 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 112 transitions, 1357 flow [2023-08-30 13:06:30,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:30,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:30,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:30,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 13:06:30,277 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:30,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:30,278 INFO L85 PathProgramCache]: Analyzing trace with hash 306059660, now seen corresponding path program 1 times [2023-08-30 13:06:30,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:30,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372454975] [2023-08-30 13:06:30,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:30,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:30,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:30,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:30,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372454975] [2023-08-30 13:06:30,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372454975] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:30,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:30,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:30,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771530864] [2023-08-30 13:06:30,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:30,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:30,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:30,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:30,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:31,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:31,159 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 112 transitions, 1357 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:31,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:31,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:31,682 INFO L130 PetriNetUnfolder]: 254/694 cut-off events. [2023-08-30 13:06:31,682 INFO L131 PetriNetUnfolder]: For 3603/3603 co-relation queries the response was YES. [2023-08-30 13:06:31,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3145 conditions, 694 events. 254/694 cut-off events. For 3603/3603 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4044 event pairs, 134 based on Foata normal form. 2/696 useless extension candidates. Maximal degree in co-relation 2859. Up to 548 conditions per place. [2023-08-30 13:06:31,684 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 86 selfloop transitions, 41 changer transitions 1/129 dead transitions. [2023-08-30 13:06:31,684 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 129 transitions, 1698 flow [2023-08-30 13:06:31,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:06:31,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:06:31,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1966 transitions. [2023-08-30 13:06:31,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4602059925093633 [2023-08-30 13:06:31,686 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1966 transitions. [2023-08-30 13:06:31,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1966 transitions. [2023-08-30 13:06:31,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:31,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1966 transitions. [2023-08-30 13:06:31,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.875) internal successors, (1966), 16 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,692 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,692 INFO L175 Difference]: Start difference. First operand has 149 places, 112 transitions, 1357 flow. Second operand 16 states and 1966 transitions. [2023-08-30 13:06:31,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 129 transitions, 1698 flow [2023-08-30 13:06:31,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 129 transitions, 1588 flow, removed 0 selfloop flow, removed 11 redundant places. [2023-08-30 13:06:31,702 INFO L231 Difference]: Finished difference. Result has 152 places, 111 transitions, 1330 flow [2023-08-30 13:06:31,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1248, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1330, PETRI_PLACES=152, PETRI_TRANSITIONS=111} [2023-08-30 13:06:31,702 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 114 predicate places. [2023-08-30 13:06:31,702 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 111 transitions, 1330 flow [2023-08-30 13:06:31,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:31,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:31,703 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:31,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 13:06:31,703 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:31,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:31,704 INFO L85 PathProgramCache]: Analyzing trace with hash 306059661, now seen corresponding path program 1 times [2023-08-30 13:06:31,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:31,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92104138] [2023-08-30 13:06:31,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:31,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:32,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:32,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:32,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92104138] [2023-08-30 13:06:32,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92104138] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:32,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:32,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 13:06:32,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480364801] [2023-08-30 13:06:32,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:32,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 13:06:32,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:32,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 13:06:32,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-08-30 13:06:32,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:32,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 111 transitions, 1330 flow. Second operand has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:32,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:32,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:32,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:33,074 INFO L130 PetriNetUnfolder]: 193/563 cut-off events. [2023-08-30 13:06:33,074 INFO L131 PetriNetUnfolder]: For 3436/3436 co-relation queries the response was YES. [2023-08-30 13:06:33,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2691 conditions, 563 events. 193/563 cut-off events. For 3436/3436 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3153 event pairs, 72 based on Foata normal form. 2/565 useless extension candidates. Maximal degree in co-relation 2511. Up to 426 conditions per place. [2023-08-30 13:06:33,076 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 79 selfloop transitions, 35 changer transitions 12/127 dead transitions. [2023-08-30 13:06:33,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 127 transitions, 1656 flow [2023-08-30 13:06:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:06:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:06:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1964 transitions. [2023-08-30 13:06:33,078 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4597378277153558 [2023-08-30 13:06:33,078 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1964 transitions. [2023-08-30 13:06:33,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1964 transitions. [2023-08-30 13:06:33,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:33,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1964 transitions. [2023-08-30 13:06:33,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.75) internal successors, (1964), 16 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,083 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,083 INFO L175 Difference]: Start difference. First operand has 152 places, 111 transitions, 1330 flow. Second operand 16 states and 1964 transitions. [2023-08-30 13:06:33,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 127 transitions, 1656 flow [2023-08-30 13:06:33,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 127 transitions, 1502 flow, removed 7 selfloop flow, removed 18 redundant places. [2023-08-30 13:06:33,092 INFO L231 Difference]: Finished difference. Result has 148 places, 103 transitions, 1196 flow [2023-08-30 13:06:33,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1196, PETRI_PLACES=148, PETRI_TRANSITIONS=103} [2023-08-30 13:06:33,093 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 110 predicate places. [2023-08-30 13:06:33,093 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 103 transitions, 1196 flow [2023-08-30 13:06:33,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.0) internal successors, (1440), 12 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:33,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:33,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 13:06:33,094 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:33,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:33,094 INFO L85 PathProgramCache]: Analyzing trace with hash 474247600, now seen corresponding path program 2 times [2023-08-30 13:06:33,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:33,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175531181] [2023-08-30 13:06:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:33,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:33,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:33,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175531181] [2023-08-30 13:06:33,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175531181] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:33,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:33,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:33,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316166168] [2023-08-30 13:06:33,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:33,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:33,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:33,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:33,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:33,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 13:06:33,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 103 transitions, 1196 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:33,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:33,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 13:06:33,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:34,145 INFO L130 PetriNetUnfolder]: 183/535 cut-off events. [2023-08-30 13:06:34,145 INFO L131 PetriNetUnfolder]: For 3282/3282 co-relation queries the response was YES. [2023-08-30 13:06:34,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2488 conditions, 535 events. 183/535 cut-off events. For 3282/3282 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2973 event pairs, 69 based on Foata normal form. 3/538 useless extension candidates. Maximal degree in co-relation 2158. Up to 355 conditions per place. [2023-08-30 13:06:34,147 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 84 selfloop transitions, 33 changer transitions 0/118 dead transitions. [2023-08-30 13:06:34,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 118 transitions, 1485 flow [2023-08-30 13:06:34,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:34,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:34,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1225 transitions. [2023-08-30 13:06:34,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45880149812734083 [2023-08-30 13:06:34,162 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1225 transitions. [2023-08-30 13:06:34,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1225 transitions. [2023-08-30 13:06:34,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:34,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1225 transitions. [2023-08-30 13:06:34,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 122.5) internal successors, (1225), 10 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,168 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,169 INFO L175 Difference]: Start difference. First operand has 148 places, 103 transitions, 1196 flow. Second operand 10 states and 1225 transitions. [2023-08-30 13:06:34,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 118 transitions, 1485 flow [2023-08-30 13:06:34,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 118 transitions, 1383 flow, removed 10 selfloop flow, removed 12 redundant places. [2023-08-30 13:06:34,179 INFO L231 Difference]: Finished difference. Result has 132 places, 101 transitions, 1144 flow [2023-08-30 13:06:34,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1144, PETRI_PLACES=132, PETRI_TRANSITIONS=101} [2023-08-30 13:06:34,180 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 94 predicate places. [2023-08-30 13:06:34,180 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 101 transitions, 1144 flow [2023-08-30 13:06:34,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:34,181 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:34,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 13:06:34,181 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:34,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:34,181 INFO L85 PathProgramCache]: Analyzing trace with hash 998819386, now seen corresponding path program 3 times [2023-08-30 13:06:34,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:34,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759618865] [2023-08-30 13:06:34,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:34,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:34,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:34,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:34,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:34,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759618865] [2023-08-30 13:06:34,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759618865] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:34,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:34,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:34,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806231277] [2023-08-30 13:06:34,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:34,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:34,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:34,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:34,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 13:06:34,937 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 101 transitions, 1144 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:34,937 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:34,937 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 13:06:34,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:35,229 INFO L130 PetriNetUnfolder]: 194/562 cut-off events. [2023-08-30 13:06:35,229 INFO L131 PetriNetUnfolder]: For 2861/2861 co-relation queries the response was YES. [2023-08-30 13:06:35,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2526 conditions, 562 events. 194/562 cut-off events. For 2861/2861 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3161 event pairs, 58 based on Foata normal form. 3/565 useless extension candidates. Maximal degree in co-relation 2292. Up to 262 conditions per place. [2023-08-30 13:06:35,231 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 85 selfloop transitions, 44 changer transitions 0/130 dead transitions. [2023-08-30 13:06:35,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 130 transitions, 1548 flow [2023-08-30 13:06:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 13:06:35,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 13:06:35,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1235 transitions. [2023-08-30 13:06:35,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46254681647940077 [2023-08-30 13:06:35,233 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1235 transitions. [2023-08-30 13:06:35,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1235 transitions. [2023-08-30 13:06:35,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:35,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1235 transitions. [2023-08-30 13:06:35,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 123.5) internal successors, (1235), 10 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,236 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 267.0) internal successors, (2937), 11 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,236 INFO L175 Difference]: Start difference. First operand has 132 places, 101 transitions, 1144 flow. Second operand 10 states and 1235 transitions. [2023-08-30 13:06:35,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 130 transitions, 1548 flow [2023-08-30 13:06:35,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 130 transitions, 1484 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-30 13:06:35,243 INFO L231 Difference]: Finished difference. Result has 136 places, 107 transitions, 1268 flow [2023-08-30 13:06:35,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1268, PETRI_PLACES=136, PETRI_TRANSITIONS=107} [2023-08-30 13:06:35,244 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 98 predicate places. [2023-08-30 13:06:35,244 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 107 transitions, 1268 flow [2023-08-30 13:06:35,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:35,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:35,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 13:06:35,245 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:35,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:35,245 INFO L85 PathProgramCache]: Analyzing trace with hash 998819387, now seen corresponding path program 1 times [2023-08-30 13:06:35,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:35,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525428870] [2023-08-30 13:06:35,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:35,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:35,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:35,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:35,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525428870] [2023-08-30 13:06:35,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525428870] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:35,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:35,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:35,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764852288] [2023-08-30 13:06:35,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:35,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:35,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:35,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:35,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:35,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:35,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 107 transitions, 1268 flow. Second operand has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:35,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:35,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:35,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:36,377 INFO L130 PetriNetUnfolder]: 191/556 cut-off events. [2023-08-30 13:06:36,377 INFO L131 PetriNetUnfolder]: For 3113/3113 co-relation queries the response was YES. [2023-08-30 13:06:36,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2580 conditions, 556 events. 191/556 cut-off events. For 3113/3113 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3128 event pairs, 52 based on Foata normal form. 3/559 useless extension candidates. Maximal degree in co-relation 2362. Up to 281 conditions per place. [2023-08-30 13:06:36,382 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 63 selfloop transitions, 56 changer transitions 0/120 dead transitions. [2023-08-30 13:06:36,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 120 transitions, 1548 flow [2023-08-30 13:06:36,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:06:36,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:06:36,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1840 transitions. [2023-08-30 13:06:36,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45942571785268416 [2023-08-30 13:06:36,384 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1840 transitions. [2023-08-30 13:06:36,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1840 transitions. [2023-08-30 13:06:36,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:36,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1840 transitions. [2023-08-30 13:06:36,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 122.66666666666667) internal successors, (1840), 15 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:36,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:36,388 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:36,388 INFO L175 Difference]: Start difference. First operand has 136 places, 107 transitions, 1268 flow. Second operand 15 states and 1840 transitions. [2023-08-30 13:06:36,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 120 transitions, 1548 flow [2023-08-30 13:06:36,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 120 transitions, 1486 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:36,397 INFO L231 Difference]: Finished difference. Result has 145 places, 106 transitions, 1328 flow [2023-08-30 13:06:36,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1328, PETRI_PLACES=145, PETRI_TRANSITIONS=106} [2023-08-30 13:06:36,399 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 107 predicate places. [2023-08-30 13:06:36,399 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 106 transitions, 1328 flow [2023-08-30 13:06:36,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:36,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:36,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:36,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 13:06:36,400 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:36,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:36,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1511463701, now seen corresponding path program 2 times [2023-08-30 13:06:36,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:36,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513515897] [2023-08-30 13:06:36,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:36,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:36,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:36,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513515897] [2023-08-30 13:06:36,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513515897] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:36,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:36,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:36,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008285318] [2023-08-30 13:06:36,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:36,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:36,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:36,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:36,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:37,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 267 [2023-08-30 13:06:37,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 106 transitions, 1328 flow. Second operand has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:37,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 267 [2023-08-30 13:06:37,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:37,469 INFO L130 PetriNetUnfolder]: 189/539 cut-off events. [2023-08-30 13:06:37,469 INFO L131 PetriNetUnfolder]: For 3349/3349 co-relation queries the response was YES. [2023-08-30 13:06:37,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2618 conditions, 539 events. 189/539 cut-off events. For 3349/3349 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2992 event pairs, 30 based on Foata normal form. 3/542 useless extension candidates. Maximal degree in co-relation 2426. Up to 185 conditions per place. [2023-08-30 13:06:37,471 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 54 selfloop transitions, 75 changer transitions 0/130 dead transitions. [2023-08-30 13:06:37,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 130 transitions, 1690 flow [2023-08-30 13:06:37,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 13:06:37,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 13:06:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2216 transitions. [2023-08-30 13:06:37,486 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.461090303786933 [2023-08-30 13:06:37,487 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2216 transitions. [2023-08-30 13:06:37,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2216 transitions. [2023-08-30 13:06:37,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:37,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2216 transitions. [2023-08-30 13:06:37,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 123.11111111111111) internal successors, (2216), 18 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,493 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 267.0) internal successors, (5073), 19 states have internal predecessors, (5073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,493 INFO L175 Difference]: Start difference. First operand has 145 places, 106 transitions, 1328 flow. Second operand 18 states and 2216 transitions. [2023-08-30 13:06:37,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 130 transitions, 1690 flow [2023-08-30 13:06:37,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 130 transitions, 1547 flow, removed 2 selfloop flow, removed 14 redundant places. [2023-08-30 13:06:37,502 INFO L231 Difference]: Finished difference. Result has 151 places, 108 transitions, 1438 flow [2023-08-30 13:06:37,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1438, PETRI_PLACES=151, PETRI_TRANSITIONS=108} [2023-08-30 13:06:37,506 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 113 predicate places. [2023-08-30 13:06:37,507 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 108 transitions, 1438 flow [2023-08-30 13:06:37,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 120.0909090909091) internal successors, (1321), 11 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:37,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:37,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:37,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 13:06:37,509 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:37,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:37,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1511463702, now seen corresponding path program 4 times [2023-08-30 13:06:37,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:37,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676895049] [2023-08-30 13:06:37,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:37,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:37,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:37,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676895049] [2023-08-30 13:06:37,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676895049] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:37,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:37,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 13:06:37,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143766640] [2023-08-30 13:06:37,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:37,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 13:06:37,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:37,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 13:06:37,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-08-30 13:06:38,130 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 13:06:38,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 108 transitions, 1438 flow. Second operand has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:38,131 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:38,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 13:06:38,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:38,396 INFO L130 PetriNetUnfolder]: 186/532 cut-off events. [2023-08-30 13:06:38,397 INFO L131 PetriNetUnfolder]: For 3622/3622 co-relation queries the response was YES. [2023-08-30 13:06:38,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2688 conditions, 532 events. 186/532 cut-off events. For 3622/3622 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2933 event pairs, 27 based on Foata normal form. 3/535 useless extension candidates. Maximal degree in co-relation 2427. Up to 179 conditions per place. [2023-08-30 13:06:38,399 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 82 selfloop transitions, 50 changer transitions 0/133 dead transitions. [2023-08-30 13:06:38,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 133 transitions, 1770 flow [2023-08-30 13:06:38,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:06:38,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:06:38,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1472 transitions. [2023-08-30 13:06:38,408 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45942571785268416 [2023-08-30 13:06:38,408 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1472 transitions. [2023-08-30 13:06:38,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1472 transitions. [2023-08-30 13:06:38,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:38,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1472 transitions. [2023-08-30 13:06:38,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.66666666666667) internal successors, (1472), 12 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:38,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:38,412 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:38,412 INFO L175 Difference]: Start difference. First operand has 151 places, 108 transitions, 1438 flow. Second operand 12 states and 1472 transitions. [2023-08-30 13:06:38,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 133 transitions, 1770 flow [2023-08-30 13:06:38,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 133 transitions, 1642 flow, removed 7 selfloop flow, removed 15 redundant places. [2023-08-30 13:06:38,422 INFO L231 Difference]: Finished difference. Result has 147 places, 106 transitions, 1380 flow [2023-08-30 13:06:38,422 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1380, PETRI_PLACES=147, PETRI_TRANSITIONS=106} [2023-08-30 13:06:38,424 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 109 predicate places. [2023-08-30 13:06:38,425 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 106 transitions, 1380 flow [2023-08-30 13:06:38,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.0909090909091) internal successors, (1299), 11 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:38,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:38,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:38,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 13:06:38,425 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:38,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1123453845, now seen corresponding path program 1 times [2023-08-30 13:06:38,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:38,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180019933] [2023-08-30 13:06:38,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:38,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:39,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:39,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:39,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180019933] [2023-08-30 13:06:39,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180019933] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:39,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:39,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:39,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745822829] [2023-08-30 13:06:39,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:39,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:39,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:39,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:39,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:39,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:06:39,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 106 transitions, 1380 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:39,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:39,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:06:39,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:40,716 INFO L130 PetriNetUnfolder]: 221/627 cut-off events. [2023-08-30 13:06:40,716 INFO L131 PetriNetUnfolder]: For 4109/4109 co-relation queries the response was YES. [2023-08-30 13:06:40,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3220 conditions, 627 events. 221/627 cut-off events. For 4109/4109 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3673 event pairs, 36 based on Foata normal form. 5/632 useless extension candidates. Maximal degree in co-relation 2950. Up to 195 conditions per place. [2023-08-30 13:06:40,719 INFO L137 encePairwiseOnDemand]: 252/267 looper letters, 90 selfloop transitions, 120 changer transitions 0/211 dead transitions. [2023-08-30 13:06:40,719 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 211 transitions, 2968 flow [2023-08-30 13:06:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-08-30 13:06:40,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-08-30 13:06:40,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3447 transitions. [2023-08-30 13:06:40,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4303370786516854 [2023-08-30 13:06:40,723 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3447 transitions. [2023-08-30 13:06:40,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3447 transitions. [2023-08-30 13:06:40,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:40,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3447 transitions. [2023-08-30 13:06:40,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 114.9) internal successors, (3447), 30 states have internal predecessors, (3447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,731 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 267.0) internal successors, (8277), 31 states have internal predecessors, (8277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,731 INFO L175 Difference]: Start difference. First operand has 147 places, 106 transitions, 1380 flow. Second operand 30 states and 3447 transitions. [2023-08-30 13:06:40,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 211 transitions, 2968 flow [2023-08-30 13:06:40,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 211 transitions, 2677 flow, removed 16 selfloop flow, removed 12 redundant places. [2023-08-30 13:06:40,742 INFO L231 Difference]: Finished difference. Result has 167 places, 171 transitions, 2327 flow [2023-08-30 13:06:40,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=1221, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2327, PETRI_PLACES=167, PETRI_TRANSITIONS=171} [2023-08-30 13:06:40,742 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 129 predicate places. [2023-08-30 13:06:40,743 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 171 transitions, 2327 flow [2023-08-30 13:06:40,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:40,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:40,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:40,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 13:06:40,743 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:40,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:40,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1635320116, now seen corresponding path program 1 times [2023-08-30 13:06:40,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:40,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258598877] [2023-08-30 13:06:40,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:40,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:41,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:41,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258598877] [2023-08-30 13:06:41,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258598877] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:41,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:41,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:41,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097499288] [2023-08-30 13:06:41,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:41,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:41,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:41,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:41,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:41,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:06:41,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 171 transitions, 2327 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:41,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:41,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:06:41,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:42,423 INFO L130 PetriNetUnfolder]: 235/677 cut-off events. [2023-08-30 13:06:42,423 INFO L131 PetriNetUnfolder]: For 4337/4337 co-relation queries the response was YES. [2023-08-30 13:06:42,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3661 conditions, 677 events. 235/677 cut-off events. For 4337/4337 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4086 event pairs, 76 based on Foata normal form. 5/682 useless extension candidates. Maximal degree in co-relation 3138. Up to 470 conditions per place. [2023-08-30 13:06:42,425 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 139 selfloop transitions, 63 changer transitions 0/203 dead transitions. [2023-08-30 13:06:42,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 203 transitions, 3018 flow [2023-08-30 13:06:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:42,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:42,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1259 transitions. [2023-08-30 13:06:42,428 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42866870956758596 [2023-08-30 13:06:42,428 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1259 transitions. [2023-08-30 13:06:42,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1259 transitions. [2023-08-30 13:06:42,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:42,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1259 transitions. [2023-08-30 13:06:42,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.45454545454545) internal successors, (1259), 11 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:42,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:42,431 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:42,431 INFO L175 Difference]: Start difference. First operand has 167 places, 171 transitions, 2327 flow. Second operand 11 states and 1259 transitions. [2023-08-30 13:06:42,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 203 transitions, 3018 flow [2023-08-30 13:06:42,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 203 transitions, 2910 flow, removed 10 selfloop flow, removed 11 redundant places. [2023-08-30 13:06:42,443 INFO L231 Difference]: Finished difference. Result has 170 places, 182 transitions, 2590 flow [2023-08-30 13:06:42,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2229, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2590, PETRI_PLACES=170, PETRI_TRANSITIONS=182} [2023-08-30 13:06:42,444 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 132 predicate places. [2023-08-30 13:06:42,444 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 182 transitions, 2590 flow [2023-08-30 13:06:42,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:42,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:42,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:42,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 13:06:42,445 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:42,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash 496091890, now seen corresponding path program 2 times [2023-08-30 13:06:42,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:42,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593782302] [2023-08-30 13:06:42,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:42,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:42,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:42,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:42,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593782302] [2023-08-30 13:06:42,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593782302] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:42,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:42,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:42,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430091320] [2023-08-30 13:06:42,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:42,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:42,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:42,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:42,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:43,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:06:43,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 182 transitions, 2590 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:43,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:43,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:06:43,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:44,064 INFO L130 PetriNetUnfolder]: 290/856 cut-off events. [2023-08-30 13:06:44,064 INFO L131 PetriNetUnfolder]: For 6850/6850 co-relation queries the response was YES. [2023-08-30 13:06:44,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4721 conditions, 856 events. 290/856 cut-off events. For 6850/6850 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5645 event pairs, 101 based on Foata normal form. 10/866 useless extension candidates. Maximal degree in co-relation 4414. Up to 571 conditions per place. [2023-08-30 13:06:44,068 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 202 selfloop transitions, 42 changer transitions 0/245 dead transitions. [2023-08-30 13:06:44,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 245 transitions, 3751 flow [2023-08-30 13:06:44,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:44,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:44,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2023-08-30 13:06:44,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4278305963699222 [2023-08-30 13:06:44,070 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2023-08-30 13:06:44,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2023-08-30 13:06:44,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:44,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2023-08-30 13:06:44,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.23076923076923) internal successors, (1485), 13 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,074 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,074 INFO L175 Difference]: Start difference. First operand has 170 places, 182 transitions, 2590 flow. Second operand 13 states and 1485 transitions. [2023-08-30 13:06:44,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 245 transitions, 3751 flow [2023-08-30 13:06:44,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 245 transitions, 3703 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-30 13:06:44,092 INFO L231 Difference]: Finished difference. Result has 185 places, 206 transitions, 3047 flow [2023-08-30 13:06:44,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2548, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3047, PETRI_PLACES=185, PETRI_TRANSITIONS=206} [2023-08-30 13:06:44,093 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 147 predicate places. [2023-08-30 13:06:44,093 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 206 transitions, 3047 flow [2023-08-30 13:06:44,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:44,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:44,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:44,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 13:06:44,094 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 13:06:44,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:44,094 INFO L85 PathProgramCache]: Analyzing trace with hash -677747490, now seen corresponding path program 3 times [2023-08-30 13:06:44,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:44,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108541648] [2023-08-30 13:06:44,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:44,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:44,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:44,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:44,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108541648] [2023-08-30 13:06:44,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108541648] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:44,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:44,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:44,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215634057] [2023-08-30 13:06:44,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:44,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:44,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:44,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:44,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:45,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:06:45,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 206 transitions, 3047 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:45,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:45,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:06:45,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:45,862 INFO L130 PetriNetUnfolder]: 304/898 cut-off events. [2023-08-30 13:06:45,862 INFO L131 PetriNetUnfolder]: For 7511/7511 co-relation queries the response was YES. [2023-08-30 13:06:45,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5122 conditions, 898 events. 304/898 cut-off events. For 7511/7511 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6048 event pairs, 116 based on Foata normal form. 5/903 useless extension candidates. Maximal degree in co-relation 4811. Up to 530 conditions per place. [2023-08-30 13:06:45,865 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 184 selfloop transitions, 75 changer transitions 0/260 dead transitions. [2023-08-30 13:06:45,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 260 transitions, 3928 flow [2023-08-30 13:06:45,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:06:45,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:06:45,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1723 transitions. [2023-08-30 13:06:45,868 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43021223470661674 [2023-08-30 13:06:45,868 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1723 transitions. [2023-08-30 13:06:45,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1723 transitions. [2023-08-30 13:06:45,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:45,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1723 transitions. [2023-08-30 13:06:45,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 114.86666666666666) internal successors, (1723), 15 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:45,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:45,872 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:45,872 INFO L175 Difference]: Start difference. First operand has 185 places, 206 transitions, 3047 flow. Second operand 15 states and 1723 transitions. [2023-08-30 13:06:45,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 260 transitions, 3928 flow [2023-08-30 13:06:45,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 260 transitions, 3913 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-30 13:06:45,892 INFO L231 Difference]: Finished difference. Result has 201 places, 214 transitions, 3340 flow [2023-08-30 13:06:45,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3032, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3340, PETRI_PLACES=201, PETRI_TRANSITIONS=214} [2023-08-30 13:06:45,893 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 163 predicate places. [2023-08-30 13:06:45,893 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 214 transitions, 3340 flow [2023-08-30 13:06:45,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:45,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:45,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:45,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 13:06:45,894 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:45,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:45,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1041980266, now seen corresponding path program 4 times [2023-08-30 13:06:45,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:45,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275342051] [2023-08-30 13:06:45,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:45,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:46,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:46,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:46,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275342051] [2023-08-30 13:06:46,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275342051] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:46,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:46,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:46,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665619438] [2023-08-30 13:06:46,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:46,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:46,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:46,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:46,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:47,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:06:47,090 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 214 transitions, 3340 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:47,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:06:47,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:47,612 INFO L130 PetriNetUnfolder]: 324/974 cut-off events. [2023-08-30 13:06:47,612 INFO L131 PetriNetUnfolder]: For 9163/9163 co-relation queries the response was YES. [2023-08-30 13:06:47,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5674 conditions, 974 events. 324/974 cut-off events. For 9163/9163 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6747 event pairs, 110 based on Foata normal form. 5/979 useless extension candidates. Maximal degree in co-relation 5345. Up to 477 conditions per place. [2023-08-30 13:06:47,616 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 161 selfloop transitions, 91 changer transitions 0/253 dead transitions. [2023-08-30 13:06:47,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 253 transitions, 4114 flow [2023-08-30 13:06:47,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:47,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1499 transitions. [2023-08-30 13:06:47,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43186401613367903 [2023-08-30 13:06:47,617 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1499 transitions. [2023-08-30 13:06:47,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1499 transitions. [2023-08-30 13:06:47,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:47,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1499 transitions. [2023-08-30 13:06:47,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.3076923076923) internal successors, (1499), 13 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,621 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,621 INFO L175 Difference]: Start difference. First operand has 201 places, 214 transitions, 3340 flow. Second operand 13 states and 1499 transitions. [2023-08-30 13:06:47,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 253 transitions, 4114 flow [2023-08-30 13:06:47,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 253 transitions, 4029 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-08-30 13:06:47,645 INFO L231 Difference]: Finished difference. Result has 212 places, 218 transitions, 3511 flow [2023-08-30 13:06:47,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3255, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3511, PETRI_PLACES=212, PETRI_TRANSITIONS=218} [2023-08-30 13:06:47,646 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 174 predicate places. [2023-08-30 13:06:47,646 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 218 transitions, 3511 flow [2023-08-30 13:06:47,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:47,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:47,646 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:47,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 13:06:47,646 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 13:06:47,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:47,647 INFO L85 PathProgramCache]: Analyzing trace with hash -943668866, now seen corresponding path program 5 times [2023-08-30 13:06:47,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:47,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427085726] [2023-08-30 13:06:47,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:47,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:48,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:48,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:48,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427085726] [2023-08-30 13:06:48,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427085726] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:48,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:48,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:48,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792248142] [2023-08-30 13:06:48,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:48,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:48,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:48,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:48,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:49,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:06:49,015 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 218 transitions, 3511 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,015 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:49,015 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:06:49,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:49,551 INFO L130 PetriNetUnfolder]: 328/999 cut-off events. [2023-08-30 13:06:49,551 INFO L131 PetriNetUnfolder]: For 9707/9707 co-relation queries the response was YES. [2023-08-30 13:06:49,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5914 conditions, 999 events. 328/999 cut-off events. For 9707/9707 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 7034 event pairs, 147 based on Foata normal form. 5/1004 useless extension candidates. Maximal degree in co-relation 5601. Up to 668 conditions per place. [2023-08-30 13:06:49,555 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 172 selfloop transitions, 73 changer transitions 0/246 dead transitions. [2023-08-30 13:06:49,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 246 transitions, 4163 flow [2023-08-30 13:06:49,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:49,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1493 transitions. [2023-08-30 13:06:49,556 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43013540766349756 [2023-08-30 13:06:49,556 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1493 transitions. [2023-08-30 13:06:49,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1493 transitions. [2023-08-30 13:06:49,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:49,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1493 transitions. [2023-08-30 13:06:49,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.84615384615384) internal successors, (1493), 13 states have internal predecessors, (1493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,560 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,560 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,560 INFO L175 Difference]: Start difference. First operand has 212 places, 218 transitions, 3511 flow. Second operand 13 states and 1493 transitions. [2023-08-30 13:06:49,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 246 transitions, 4163 flow [2023-08-30 13:06:49,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 246 transitions, 3973 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-08-30 13:06:49,587 INFO L231 Difference]: Finished difference. Result has 221 places, 220 transitions, 3556 flow [2023-08-30 13:06:49,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3298, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3556, PETRI_PLACES=221, PETRI_TRANSITIONS=220} [2023-08-30 13:06:49,588 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 183 predicate places. [2023-08-30 13:06:49,588 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 220 transitions, 3556 flow [2023-08-30 13:06:49,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:49,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:49,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 13:06:49,589 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:49,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:49,589 INFO L85 PathProgramCache]: Analyzing trace with hash 671446131, now seen corresponding path program 2 times [2023-08-30 13:06:49,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:49,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799739442] [2023-08-30 13:06:49,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:49,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:49,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:49,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799739442] [2023-08-30 13:06:49,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799739442] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:49,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:49,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:06:49,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600128393] [2023-08-30 13:06:49,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:49,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 13:06:49,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:49,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 13:06:49,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 13:06:49,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 267 [2023-08-30 13:06:49,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 220 transitions, 3556 flow. Second operand has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:49,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:49,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 267 [2023-08-30 13:06:49,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:50,000 INFO L130 PetriNetUnfolder]: 172/570 cut-off events. [2023-08-30 13:06:50,001 INFO L131 PetriNetUnfolder]: For 5425/5425 co-relation queries the response was YES. [2023-08-30 13:06:50,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3362 conditions, 570 events. 172/570 cut-off events. For 5425/5425 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3567 event pairs, 97 based on Foata normal form. 12/582 useless extension candidates. Maximal degree in co-relation 3303. Up to 461 conditions per place. [2023-08-30 13:06:50,003 INFO L137 encePairwiseOnDemand]: 261/267 looper letters, 137 selfloop transitions, 16 changer transitions 0/158 dead transitions. [2023-08-30 13:06:50,003 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 158 transitions, 2763 flow [2023-08-30 13:06:50,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 13:06:50,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 13:06:50,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 804 transitions. [2023-08-30 13:06:50,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50187265917603 [2023-08-30 13:06:50,005 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 804 transitions. [2023-08-30 13:06:50,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 804 transitions. [2023-08-30 13:06:50,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:50,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 804 transitions. [2023-08-30 13:06:50,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:50,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:50,018 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 267.0) internal successors, (1869), 7 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:50,018 INFO L175 Difference]: Start difference. First operand has 221 places, 220 transitions, 3556 flow. Second operand 6 states and 804 transitions. [2023-08-30 13:06:50,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 158 transitions, 2763 flow [2023-08-30 13:06:50,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 158 transitions, 2432 flow, removed 30 selfloop flow, removed 21 redundant places. [2023-08-30 13:06:50,035 INFO L231 Difference]: Finished difference. Result has 182 places, 157 transitions, 2160 flow [2023-08-30 13:06:50,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2113, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2160, PETRI_PLACES=182, PETRI_TRANSITIONS=157} [2023-08-30 13:06:50,036 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 144 predicate places. [2023-08-30 13:06:50,036 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 157 transitions, 2160 flow [2023-08-30 13:06:50,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.5) internal successors, (789), 6 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:50,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:50,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:50,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 13:06:50,036 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:50,037 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1567890700, now seen corresponding path program 6 times [2023-08-30 13:06:50,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:50,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682886484] [2023-08-30 13:06:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:50,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:50,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:50,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:50,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682886484] [2023-08-30 13:06:50,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682886484] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:50,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:50,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:50,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098705976] [2023-08-30 13:06:50,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:50,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:50,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:50,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:50,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:51,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:06:51,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 157 transitions, 2160 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:51,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:06:51,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:51,808 INFO L130 PetriNetUnfolder]: 218/672 cut-off events. [2023-08-30 13:06:51,808 INFO L131 PetriNetUnfolder]: For 4738/4738 co-relation queries the response was YES. [2023-08-30 13:06:51,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3559 conditions, 672 events. 218/672 cut-off events. For 4738/4738 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4270 event pairs, 84 based on Foata normal form. 5/677 useless extension candidates. Maximal degree in co-relation 3508. Up to 260 conditions per place. [2023-08-30 13:06:51,811 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 147 selfloop transitions, 63 changer transitions 0/211 dead transitions. [2023-08-30 13:06:51,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 211 transitions, 2910 flow [2023-08-30 13:06:51,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 13:06:51,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 13:06:51,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1831 transitions. [2023-08-30 13:06:51,813 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4286048689138577 [2023-08-30 13:06:51,813 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1831 transitions. [2023-08-30 13:06:51,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1831 transitions. [2023-08-30 13:06:51,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:51,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1831 transitions. [2023-08-30 13:06:51,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 114.4375) internal successors, (1831), 16 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,816 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 267.0) internal successors, (4539), 17 states have internal predecessors, (4539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,817 INFO L175 Difference]: Start difference. First operand has 182 places, 157 transitions, 2160 flow. Second operand 16 states and 1831 transitions. [2023-08-30 13:06:51,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 211 transitions, 2910 flow [2023-08-30 13:06:51,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 211 transitions, 2852 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-30 13:06:51,838 INFO L231 Difference]: Finished difference. Result has 196 places, 166 transitions, 2396 flow [2023-08-30 13:06:51,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2105, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2396, PETRI_PLACES=196, PETRI_TRANSITIONS=166} [2023-08-30 13:06:51,839 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 158 predicate places. [2023-08-30 13:06:51,839 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 166 transitions, 2396 flow [2023-08-30 13:06:51,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:51,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:51,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:51,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 13:06:51,840 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:51,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:51,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1258633781, now seen corresponding path program 3 times [2023-08-30 13:06:51,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:51,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482502776] [2023-08-30 13:06:51,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:51,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:52,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:52,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482502776] [2023-08-30 13:06:52,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482502776] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:52,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:52,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:52,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64300808] [2023-08-30 13:06:52,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:52,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:52,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:52,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:06:52,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 166 transitions, 2396 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:52,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:52,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:06:52,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:53,441 INFO L130 PetriNetUnfolder]: 217/674 cut-off events. [2023-08-30 13:06:53,442 INFO L131 PetriNetUnfolder]: For 5030/5030 co-relation queries the response was YES. [2023-08-30 13:06:53,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3709 conditions, 674 events. 217/674 cut-off events. For 5030/5030 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4297 event pairs, 96 based on Foata normal form. 1/675 useless extension candidates. Maximal degree in co-relation 3655. Up to 358 conditions per place. [2023-08-30 13:06:53,445 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 113 selfloop transitions, 69 changer transitions 0/183 dead transitions. [2023-08-30 13:06:53,445 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 183 transitions, 2814 flow [2023-08-30 13:06:53,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:06:53,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:06:53,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1731 transitions. [2023-08-30 13:06:53,446 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4322097378277154 [2023-08-30 13:06:53,446 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1731 transitions. [2023-08-30 13:06:53,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1731 transitions. [2023-08-30 13:06:53,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:53,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1731 transitions. [2023-08-30 13:06:53,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 115.4) internal successors, (1731), 15 states have internal predecessors, (1731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:53,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:53,450 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:53,450 INFO L175 Difference]: Start difference. First operand has 196 places, 166 transitions, 2396 flow. Second operand 15 states and 1731 transitions. [2023-08-30 13:06:53,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 183 transitions, 2814 flow [2023-08-30 13:06:53,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 183 transitions, 2728 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-08-30 13:06:53,468 INFO L231 Difference]: Finished difference. Result has 205 places, 167 transitions, 2460 flow [2023-08-30 13:06:53,469 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2310, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2460, PETRI_PLACES=205, PETRI_TRANSITIONS=167} [2023-08-30 13:06:53,469 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 167 predicate places. [2023-08-30 13:06:53,469 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 167 transitions, 2460 flow [2023-08-30 13:06:53,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:53,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:53,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:53,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 13:06:53,470 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:53,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:53,470 INFO L85 PathProgramCache]: Analyzing trace with hash 298019574, now seen corresponding path program 7 times [2023-08-30 13:06:53,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:53,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897048235] [2023-08-30 13:06:53,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:53,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:54,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:54,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:54,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897048235] [2023-08-30 13:06:54,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897048235] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:54,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:54,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:54,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705100896] [2023-08-30 13:06:54,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:54,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:54,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:54,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:54,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:54,683 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:06:54,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 167 transitions, 2460 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:54,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:54,684 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:06:54,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:55,097 INFO L130 PetriNetUnfolder]: 214/661 cut-off events. [2023-08-30 13:06:55,097 INFO L131 PetriNetUnfolder]: For 5157/5157 co-relation queries the response was YES. [2023-08-30 13:06:55,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3715 conditions, 661 events. 214/661 cut-off events. For 5157/5157 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4165 event pairs, 70 based on Foata normal form. 5/666 useless extension candidates. Maximal degree in co-relation 3660. Up to 391 conditions per place. [2023-08-30 13:06:55,100 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 121 selfloop transitions, 61 changer transitions 0/183 dead transitions. [2023-08-30 13:06:55,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 183 transitions, 2899 flow [2023-08-30 13:06:55,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:06:55,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:06:55,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2023-08-30 13:06:55,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42662580864828054 [2023-08-30 13:06:55,101 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2023-08-30 13:06:55,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2023-08-30 13:06:55,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:55,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2023-08-30 13:06:55,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:55,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:55,104 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:55,104 INFO L175 Difference]: Start difference. First operand has 205 places, 167 transitions, 2460 flow. Second operand 11 states and 1253 transitions. [2023-08-30 13:06:55,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 183 transitions, 2899 flow [2023-08-30 13:06:55,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 183 transitions, 2772 flow, removed 1 selfloop flow, removed 11 redundant places. [2023-08-30 13:06:55,123 INFO L231 Difference]: Finished difference. Result has 205 places, 167 transitions, 2460 flow [2023-08-30 13:06:55,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2333, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2460, PETRI_PLACES=205, PETRI_TRANSITIONS=167} [2023-08-30 13:06:55,124 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 167 predicate places. [2023-08-30 13:06:55,124 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 167 transitions, 2460 flow [2023-08-30 13:06:55,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:55,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:55,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:55,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 13:06:55,124 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:55,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:55,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1220495744, now seen corresponding path program 8 times [2023-08-30 13:06:55,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:55,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590438540] [2023-08-30 13:06:55,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:55,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:55,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:55,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:55,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590438540] [2023-08-30 13:06:55,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590438540] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:55,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:55,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:55,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343124071] [2023-08-30 13:06:55,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:55,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:55,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:55,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:55,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:56,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:06:56,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 167 transitions, 2460 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:56,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:56,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:06:56,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:56,711 INFO L130 PetriNetUnfolder]: 221/682 cut-off events. [2023-08-30 13:06:56,711 INFO L131 PetriNetUnfolder]: For 5347/5347 co-relation queries the response was YES. [2023-08-30 13:06:56,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3845 conditions, 682 events. 221/682 cut-off events. For 5347/5347 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4356 event pairs, 77 based on Foata normal form. 5/687 useless extension candidates. Maximal degree in co-relation 3789. Up to 260 conditions per place. [2023-08-30 13:06:56,714 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 136 selfloop transitions, 63 changer transitions 0/200 dead transitions. [2023-08-30 13:06:56,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 200 transitions, 3021 flow [2023-08-30 13:06:56,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:06:56,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:06:56,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1707 transitions. [2023-08-30 13:06:56,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42621722846441945 [2023-08-30 13:06:56,716 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1707 transitions. [2023-08-30 13:06:56,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1707 transitions. [2023-08-30 13:06:56,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:56,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1707 transitions. [2023-08-30 13:06:56,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 113.8) internal successors, (1707), 15 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:56,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:56,720 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:56,720 INFO L175 Difference]: Start difference. First operand has 205 places, 167 transitions, 2460 flow. Second operand 15 states and 1707 transitions. [2023-08-30 13:06:56,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 200 transitions, 3021 flow [2023-08-30 13:06:56,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 200 transitions, 2914 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-30 13:06:56,739 INFO L231 Difference]: Finished difference. Result has 214 places, 167 transitions, 2516 flow [2023-08-30 13:06:56,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2328, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2516, PETRI_PLACES=214, PETRI_TRANSITIONS=167} [2023-08-30 13:06:56,739 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 176 predicate places. [2023-08-30 13:06:56,740 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 167 transitions, 2516 flow [2023-08-30 13:06:56,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:56,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:56,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:56,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-30 13:06:56,740 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:56,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash 298019575, now seen corresponding path program 4 times [2023-08-30 13:06:56,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:56,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165009282] [2023-08-30 13:06:56,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:56,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:57,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:57,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165009282] [2023-08-30 13:06:57,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165009282] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:57,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:57,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:57,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225807101] [2023-08-30 13:06:57,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:57,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:57,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:57,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:57,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:57,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:06:57,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 167 transitions, 2516 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:57,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:57,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:06:57,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:58,336 INFO L130 PetriNetUnfolder]: 218/679 cut-off events. [2023-08-30 13:06:58,336 INFO L131 PetriNetUnfolder]: For 5821/5821 co-relation queries the response was YES. [2023-08-30 13:06:58,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3918 conditions, 679 events. 218/679 cut-off events. For 5821/5821 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4347 event pairs, 56 based on Foata normal form. 3/682 useless extension candidates. Maximal degree in co-relation 3859. Up to 416 conditions per place. [2023-08-30 13:06:58,339 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 92 selfloop transitions, 83 changer transitions 0/176 dead transitions. [2023-08-30 13:06:58,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 176 transitions, 2905 flow [2023-08-30 13:06:58,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:06:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:06:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1604 transitions. [2023-08-30 13:06:58,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4291064740502943 [2023-08-30 13:06:58,341 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1604 transitions. [2023-08-30 13:06:58,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1604 transitions. [2023-08-30 13:06:58,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:58,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1604 transitions. [2023-08-30 13:06:58,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.57142857142857) internal successors, (1604), 14 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:58,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:58,345 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:58,345 INFO L175 Difference]: Start difference. First operand has 214 places, 167 transitions, 2516 flow. Second operand 14 states and 1604 transitions. [2023-08-30 13:06:58,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 176 transitions, 2905 flow [2023-08-30 13:06:58,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 176 transitions, 2733 flow, removed 12 selfloop flow, removed 10 redundant places. [2023-08-30 13:06:58,363 INFO L231 Difference]: Finished difference. Result has 218 places, 168 transitions, 2534 flow [2023-08-30 13:06:58,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2344, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2534, PETRI_PLACES=218, PETRI_TRANSITIONS=168} [2023-08-30 13:06:58,364 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 180 predicate places. [2023-08-30 13:06:58,364 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 168 transitions, 2534 flow [2023-08-30 13:06:58,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:58,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:58,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:58,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-30 13:06:58,365 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:58,365 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:58,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1171192390, now seen corresponding path program 9 times [2023-08-30 13:06:58,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:58,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372501380] [2023-08-30 13:06:58,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:58,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:06:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:06:58,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:06:58,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372501380] [2023-08-30 13:06:58,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372501380] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:06:58,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:06:58,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:06:58,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421345455] [2023-08-30 13:06:58,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:06:58,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:06:58,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:06:58,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:06:58,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:06:59,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:06:59,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 168 transitions, 2534 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:59,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:06:59,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:06:59,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:06:59,891 INFO L130 PetriNetUnfolder]: 215/663 cut-off events. [2023-08-30 13:06:59,891 INFO L131 PetriNetUnfolder]: For 5362/5362 co-relation queries the response was YES. [2023-08-30 13:06:59,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3885 conditions, 663 events. 215/663 cut-off events. For 5362/5362 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4192 event pairs, 74 based on Foata normal form. 5/668 useless extension candidates. Maximal degree in co-relation 3827. Up to 334 conditions per place. [2023-08-30 13:06:59,894 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 126 selfloop transitions, 60 changer transitions 0/187 dead transitions. [2023-08-30 13:06:59,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 187 transitions, 2952 flow [2023-08-30 13:06:59,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:06:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:06:59,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1481 transitions. [2023-08-30 13:06:59,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42667819072313456 [2023-08-30 13:06:59,895 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1481 transitions. [2023-08-30 13:06:59,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1481 transitions. [2023-08-30 13:06:59,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:06:59,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1481 transitions. [2023-08-30 13:06:59,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.92307692307692) internal successors, (1481), 13 states have internal predecessors, (1481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:59,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:59,898 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:59,899 INFO L175 Difference]: Start difference. First operand has 218 places, 168 transitions, 2534 flow. Second operand 13 states and 1481 transitions. [2023-08-30 13:06:59,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 187 transitions, 2952 flow [2023-08-30 13:06:59,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 187 transitions, 2785 flow, removed 9 selfloop flow, removed 16 redundant places. [2023-08-30 13:06:59,917 INFO L231 Difference]: Finished difference. Result has 213 places, 165 transitions, 2467 flow [2023-08-30 13:06:59,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2318, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2467, PETRI_PLACES=213, PETRI_TRANSITIONS=165} [2023-08-30 13:06:59,917 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 175 predicate places. [2023-08-30 13:06:59,918 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 165 transitions, 2467 flow [2023-08-30 13:06:59,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:06:59,918 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:06:59,918 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:06:59,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-30 13:06:59,918 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:06:59,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:06:59,919 INFO L85 PathProgramCache]: Analyzing trace with hash -254526068, now seen corresponding path program 10 times [2023-08-30 13:06:59,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:06:59,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480223964] [2023-08-30 13:06:59,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:06:59,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:06:59,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:00,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:00,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480223964] [2023-08-30 13:07:00,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480223964] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:00,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:00,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:00,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477075565] [2023-08-30 13:07:00,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:00,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:00,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:00,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:00,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:01,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:07:01,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 165 transitions, 2467 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:01,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:01,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:07:01,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:01,553 INFO L130 PetriNetUnfolder]: 229/707 cut-off events. [2023-08-30 13:07:01,553 INFO L131 PetriNetUnfolder]: For 5806/5806 co-relation queries the response was YES. [2023-08-30 13:07:01,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4108 conditions, 707 events. 229/707 cut-off events. For 5806/5806 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4565 event pairs, 107 based on Foata normal form. 5/712 useless extension candidates. Maximal degree in co-relation 4054. Up to 516 conditions per place. [2023-08-30 13:07:01,556 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 152 selfloop transitions, 35 changer transitions 0/188 dead transitions. [2023-08-30 13:07:01,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 188 transitions, 3019 flow [2023-08-30 13:07:01,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:07:01,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:07:01,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2023-08-30 13:07:01,558 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42662580864828054 [2023-08-30 13:07:01,558 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2023-08-30 13:07:01,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2023-08-30 13:07:01,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:01,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2023-08-30 13:07:01,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:01,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:01,563 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:01,563 INFO L175 Difference]: Start difference. First operand has 213 places, 165 transitions, 2467 flow. Second operand 11 states and 1253 transitions. [2023-08-30 13:07:01,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 188 transitions, 3019 flow [2023-08-30 13:07:01,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 188 transitions, 2879 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-30 13:07:01,581 INFO L231 Difference]: Finished difference. Result has 217 places, 170 transitions, 2526 flow [2023-08-30 13:07:01,581 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2332, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2526, PETRI_PLACES=217, PETRI_TRANSITIONS=170} [2023-08-30 13:07:01,581 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 179 predicate places. [2023-08-30 13:07:01,581 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 170 transitions, 2526 flow [2023-08-30 13:07:01,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:01,582 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:01,582 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:01,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-30 13:07:01,582 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 13:07:01,582 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:01,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1987799650, now seen corresponding path program 11 times [2023-08-30 13:07:01,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:01,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638112349] [2023-08-30 13:07:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:01,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:02,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:02,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638112349] [2023-08-30 13:07:02,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638112349] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:02,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:02,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:02,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040515869] [2023-08-30 13:07:02,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:02,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:02,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:02,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:02,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:02,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:07:02,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 170 transitions, 2526 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:02,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:02,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:07:02,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:03,270 INFO L130 PetriNetUnfolder]: 226/693 cut-off events. [2023-08-30 13:07:03,271 INFO L131 PetriNetUnfolder]: For 5601/5601 co-relation queries the response was YES. [2023-08-30 13:07:03,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4111 conditions, 693 events. 226/693 cut-off events. For 5601/5601 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4445 event pairs, 85 based on Foata normal form. 5/698 useless extension candidates. Maximal degree in co-relation 4055. Up to 282 conditions per place. [2023-08-30 13:07:03,274 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 129 selfloop transitions, 65 changer transitions 0/195 dead transitions. [2023-08-30 13:07:03,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 195 transitions, 3001 flow [2023-08-30 13:07:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:03,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:03,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1594 transitions. [2023-08-30 13:07:03,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42643124665596577 [2023-08-30 13:07:03,275 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1594 transitions. [2023-08-30 13:07:03,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1594 transitions. [2023-08-30 13:07:03,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:03,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1594 transitions. [2023-08-30 13:07:03,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 113.85714285714286) internal successors, (1594), 14 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:03,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:03,278 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:03,278 INFO L175 Difference]: Start difference. First operand has 217 places, 170 transitions, 2526 flow. Second operand 14 states and 1594 transitions. [2023-08-30 13:07:03,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 195 transitions, 3001 flow [2023-08-30 13:07:03,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 195 transitions, 2939 flow, removed 11 selfloop flow, removed 6 redundant places. [2023-08-30 13:07:03,296 INFO L231 Difference]: Finished difference. Result has 225 places, 168 transitions, 2573 flow [2023-08-30 13:07:03,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2440, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2573, PETRI_PLACES=225, PETRI_TRANSITIONS=168} [2023-08-30 13:07:03,297 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 187 predicate places. [2023-08-30 13:07:03,297 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 168 transitions, 2573 flow [2023-08-30 13:07:03,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:03,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:03,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:03,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-30 13:07:03,297 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:03,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:03,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1139795522, now seen corresponding path program 12 times [2023-08-30 13:07:03,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:03,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110620355] [2023-08-30 13:07:03,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:03,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:03,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:03,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:03,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110620355] [2023-08-30 13:07:03,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110620355] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:03,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:03,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:03,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657447792] [2023-08-30 13:07:03,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:03,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:03,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:03,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:03,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:04,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:07:04,413 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 168 transitions, 2573 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:04,413 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:04,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:07:04,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:04,872 INFO L130 PetriNetUnfolder]: 235/724 cut-off events. [2023-08-30 13:07:04,873 INFO L131 PetriNetUnfolder]: For 6436/6436 co-relation queries the response was YES. [2023-08-30 13:07:04,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4337 conditions, 724 events. 235/724 cut-off events. For 6436/6436 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4704 event pairs, 46 based on Foata normal form. 5/729 useless extension candidates. Maximal degree in co-relation 4282. Up to 249 conditions per place. [2023-08-30 13:07:04,876 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 117 selfloop transitions, 82 changer transitions 0/200 dead transitions. [2023-08-30 13:07:04,877 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 200 transitions, 3132 flow [2023-08-30 13:07:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:04,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1592 transitions. [2023-08-30 13:07:04,878 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42589620117710003 [2023-08-30 13:07:04,878 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1592 transitions. [2023-08-30 13:07:04,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1592 transitions. [2023-08-30 13:07:04,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:04,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1592 transitions. [2023-08-30 13:07:04,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 113.71428571428571) internal successors, (1592), 14 states have internal predecessors, (1592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:04,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:04,882 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:04,882 INFO L175 Difference]: Start difference. First operand has 225 places, 168 transitions, 2573 flow. Second operand 14 states and 1592 transitions. [2023-08-30 13:07:04,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 200 transitions, 3132 flow [2023-08-30 13:07:04,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 200 transitions, 3030 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-30 13:07:04,901 INFO L231 Difference]: Finished difference. Result has 233 places, 172 transitions, 2712 flow [2023-08-30 13:07:04,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2471, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2712, PETRI_PLACES=233, PETRI_TRANSITIONS=172} [2023-08-30 13:07:04,902 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 195 predicate places. [2023-08-30 13:07:04,902 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 172 transitions, 2712 flow [2023-08-30 13:07:04,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:04,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:04,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:04,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-30 13:07:04,903 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:04,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:04,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1906863488, now seen corresponding path program 13 times [2023-08-30 13:07:04,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:04,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640746576] [2023-08-30 13:07:04,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:04,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:05,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:05,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640746576] [2023-08-30 13:07:05,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640746576] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:05,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:05,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:05,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964387877] [2023-08-30 13:07:05,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:05,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:05,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:05,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:05,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:06,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:07:06,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 172 transitions, 2712 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:06,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:06,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:07:06,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:06,560 INFO L130 PetriNetUnfolder]: 249/767 cut-off events. [2023-08-30 13:07:06,560 INFO L131 PetriNetUnfolder]: For 7394/7394 co-relation queries the response was YES. [2023-08-30 13:07:06,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4747 conditions, 767 events. 249/767 cut-off events. For 7394/7394 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 5106 event pairs, 114 based on Foata normal form. 5/772 useless extension candidates. Maximal degree in co-relation 4689. Up to 424 conditions per place. [2023-08-30 13:07:06,564 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 178 selfloop transitions, 39 changer transitions 0/218 dead transitions. [2023-08-30 13:07:06,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 218 transitions, 3436 flow [2023-08-30 13:07:06,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:07:06,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:07:06,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1715 transitions. [2023-08-30 13:07:06,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4282147315855181 [2023-08-30 13:07:06,565 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1715 transitions. [2023-08-30 13:07:06,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1715 transitions. [2023-08-30 13:07:06,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:06,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1715 transitions. [2023-08-30 13:07:06,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 114.33333333333333) internal successors, (1715), 15 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:06,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:06,569 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:06,569 INFO L175 Difference]: Start difference. First operand has 233 places, 172 transitions, 2712 flow. Second operand 15 states and 1715 transitions. [2023-08-30 13:07:06,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 218 transitions, 3436 flow [2023-08-30 13:07:06,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 218 transitions, 3283 flow, removed 7 selfloop flow, removed 12 redundant places. [2023-08-30 13:07:06,591 INFO L231 Difference]: Finished difference. Result has 238 places, 176 transitions, 2739 flow [2023-08-30 13:07:06,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2563, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2739, PETRI_PLACES=238, PETRI_TRANSITIONS=176} [2023-08-30 13:07:06,591 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 200 predicate places. [2023-08-30 13:07:06,592 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 176 transitions, 2739 flow [2023-08-30 13:07:06,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:06,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:06,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:06,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-30 13:07:06,592 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:06,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:06,593 INFO L85 PathProgramCache]: Analyzing trace with hash -200584408, now seen corresponding path program 14 times [2023-08-30 13:07:06,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:06,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799262609] [2023-08-30 13:07:06,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:06,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:07,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:07,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799262609] [2023-08-30 13:07:07,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799262609] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:07,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:07,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:07,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273665525] [2023-08-30 13:07:07,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:07,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:07,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:07,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:07,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:07,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:07:07,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 176 transitions, 2739 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:07,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:07,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:07:07,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:08,333 INFO L130 PetriNetUnfolder]: 253/783 cut-off events. [2023-08-30 13:07:08,334 INFO L131 PetriNetUnfolder]: For 7779/7779 co-relation queries the response was YES. [2023-08-30 13:07:08,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4831 conditions, 783 events. 253/783 cut-off events. For 7779/7779 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5262 event pairs, 93 based on Foata normal form. 5/788 useless extension candidates. Maximal degree in co-relation 4776. Up to 424 conditions per place. [2023-08-30 13:07:08,337 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 165 selfloop transitions, 46 changer transitions 0/212 dead transitions. [2023-08-30 13:07:08,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 212 transitions, 3324 flow [2023-08-30 13:07:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:07:08,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:07:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1714 transitions. [2023-08-30 13:07:08,339 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4279650436953808 [2023-08-30 13:07:08,339 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1714 transitions. [2023-08-30 13:07:08,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1714 transitions. [2023-08-30 13:07:08,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:08,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1714 transitions. [2023-08-30 13:07:08,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 114.26666666666667) internal successors, (1714), 15 states have internal predecessors, (1714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:08,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:08,342 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:08,342 INFO L175 Difference]: Start difference. First operand has 238 places, 176 transitions, 2739 flow. Second operand 15 states and 1714 transitions. [2023-08-30 13:07:08,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 212 transitions, 3324 flow [2023-08-30 13:07:08,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 212 transitions, 3202 flow, removed 17 selfloop flow, removed 10 redundant places. [2023-08-30 13:07:08,363 INFO L231 Difference]: Finished difference. Result has 246 places, 177 transitions, 2780 flow [2023-08-30 13:07:08,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2596, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2780, PETRI_PLACES=246, PETRI_TRANSITIONS=177} [2023-08-30 13:07:08,363 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 208 predicate places. [2023-08-30 13:07:08,364 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 177 transitions, 2780 flow [2023-08-30 13:07:08,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:08,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:08,364 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:08,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-30 13:07:08,364 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 13:07:08,364 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:08,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1058466093, now seen corresponding path program 5 times [2023-08-30 13:07:08,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:08,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495349328] [2023-08-30 13:07:08,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:08,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:08,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:08,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:08,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:08,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495349328] [2023-08-30 13:07:08,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495349328] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:08,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:08,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:08,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829524156] [2023-08-30 13:07:08,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:08,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:08,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:08,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:08,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:09,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:09,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 177 transitions, 2780 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:09,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:09,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:09,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:10,207 INFO L130 PetriNetUnfolder]: 252/781 cut-off events. [2023-08-30 13:07:10,207 INFO L131 PetriNetUnfolder]: For 7855/7855 co-relation queries the response was YES. [2023-08-30 13:07:10,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4861 conditions, 781 events. 252/781 cut-off events. For 7855/7855 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5246 event pairs, 57 based on Foata normal form. 1/782 useless extension candidates. Maximal degree in co-relation 4805. Up to 403 conditions per place. [2023-08-30 13:07:10,210 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 75 selfloop transitions, 116 changer transitions 0/192 dead transitions. [2023-08-30 13:07:10,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 192 transitions, 3276 flow [2023-08-30 13:07:10,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-08-30 13:07:10,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-08-30 13:07:10,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2278 transitions. [2023-08-30 13:07:10,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4265917602996255 [2023-08-30 13:07:10,212 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2278 transitions. [2023-08-30 13:07:10,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2278 transitions. [2023-08-30 13:07:10,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:10,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2278 transitions. [2023-08-30 13:07:10,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 113.9) internal successors, (2278), 20 states have internal predecessors, (2278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:10,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:10,216 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 267.0) internal successors, (5607), 21 states have internal predecessors, (5607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:10,216 INFO L175 Difference]: Start difference. First operand has 246 places, 177 transitions, 2780 flow. Second operand 20 states and 2278 transitions. [2023-08-30 13:07:10,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 192 transitions, 3276 flow [2023-08-30 13:07:10,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 192 transitions, 3169 flow, removed 13 selfloop flow, removed 12 redundant places. [2023-08-30 13:07:10,237 INFO L231 Difference]: Finished difference. Result has 255 places, 180 transitions, 3031 flow [2023-08-30 13:07:10,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2674, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3031, PETRI_PLACES=255, PETRI_TRANSITIONS=180} [2023-08-30 13:07:10,237 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 217 predicate places. [2023-08-30 13:07:10,237 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 180 transitions, 3031 flow [2023-08-30 13:07:10,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:10,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:10,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:10,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-30 13:07:10,237 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:10,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:10,238 INFO L85 PathProgramCache]: Analyzing trace with hash 719886573, now seen corresponding path program 6 times [2023-08-30 13:07:10,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:10,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807502198] [2023-08-30 13:07:10,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:10,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:10,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:10,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807502198] [2023-08-30 13:07:10,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807502198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:10,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:10,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:10,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262054142] [2023-08-30 13:07:10,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:10,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:10,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:10,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:10,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:11,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:11,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 180 transitions, 3031 flow. Second operand has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:11,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:11,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:11,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:11,756 INFO L130 PetriNetUnfolder]: 251/778 cut-off events. [2023-08-30 13:07:11,757 INFO L131 PetriNetUnfolder]: For 7964/7964 co-relation queries the response was YES. [2023-08-30 13:07:11,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5035 conditions, 778 events. 251/778 cut-off events. For 7964/7964 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 5214 event pairs, 52 based on Foata normal form. 1/779 useless extension candidates. Maximal degree in co-relation 4983. Up to 457 conditions per place. [2023-08-30 13:07:11,760 INFO L137 encePairwiseOnDemand]: 254/267 looper letters, 89 selfloop transitions, 98 changer transitions 0/188 dead transitions. [2023-08-30 13:07:11,760 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 188 transitions, 3439 flow [2023-08-30 13:07:11,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 13:07:11,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 13:07:11,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1713 transitions. [2023-08-30 13:07:11,769 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42771535580524345 [2023-08-30 13:07:11,769 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1713 transitions. [2023-08-30 13:07:11,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1713 transitions. [2023-08-30 13:07:11,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:11,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1713 transitions. [2023-08-30 13:07:11,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 114.2) internal successors, (1713), 15 states have internal predecessors, (1713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:11,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:11,773 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 267.0) internal successors, (4272), 16 states have internal predecessors, (4272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:11,774 INFO L175 Difference]: Start difference. First operand has 255 places, 180 transitions, 3031 flow. Second operand 15 states and 1713 transitions. [2023-08-30 13:07:11,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 188 transitions, 3439 flow [2023-08-30 13:07:11,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 188 transitions, 3307 flow, removed 9 selfloop flow, removed 14 redundant places. [2023-08-30 13:07:11,799 INFO L231 Difference]: Finished difference. Result has 256 places, 181 transitions, 3120 flow [2023-08-30 13:07:11,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2903, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3120, PETRI_PLACES=256, PETRI_TRANSITIONS=181} [2023-08-30 13:07:11,800 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 218 predicate places. [2023-08-30 13:07:11,800 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 181 transitions, 3120 flow [2023-08-30 13:07:11,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 112.15384615384616) internal successors, (1458), 13 states have internal predecessors, (1458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:11,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:11,801 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:11,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-30 13:07:11,801 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:11,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:11,801 INFO L85 PathProgramCache]: Analyzing trace with hash -539163928, now seen corresponding path program 15 times [2023-08-30 13:07:11,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:11,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896583429] [2023-08-30 13:07:11,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:11,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:12,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:12,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:12,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896583429] [2023-08-30 13:07:12,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896583429] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:12,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:12,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:12,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746252200] [2023-08-30 13:07:12,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:12,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:12,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:12,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:12,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:13,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:07:13,111 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 181 transitions, 3120 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:13,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:13,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:07:13,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:13,565 INFO L130 PetriNetUnfolder]: 248/765 cut-off events. [2023-08-30 13:07:13,565 INFO L131 PetriNetUnfolder]: For 8485/8485 co-relation queries the response was YES. [2023-08-30 13:07:13,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5052 conditions, 765 events. 248/765 cut-off events. For 8485/8485 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 5097 event pairs, 87 based on Foata normal form. 5/770 useless extension candidates. Maximal degree in co-relation 4999. Up to 424 conditions per place. [2023-08-30 13:07:13,569 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 153 selfloop transitions, 44 changer transitions 0/198 dead transitions. [2023-08-30 13:07:13,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 198 transitions, 3535 flow [2023-08-30 13:07:13,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:07:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:07:13,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1478 transitions. [2023-08-30 13:07:13,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4258138864880438 [2023-08-30 13:07:13,571 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1478 transitions. [2023-08-30 13:07:13,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1478 transitions. [2023-08-30 13:07:13,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:13,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1478 transitions. [2023-08-30 13:07:13,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 113.6923076923077) internal successors, (1478), 13 states have internal predecessors, (1478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:13,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:13,574 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:13,574 INFO L175 Difference]: Start difference. First operand has 256 places, 181 transitions, 3120 flow. Second operand 13 states and 1478 transitions. [2023-08-30 13:07:13,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 198 transitions, 3535 flow [2023-08-30 13:07:13,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 198 transitions, 3324 flow, removed 2 selfloop flow, removed 19 redundant places. [2023-08-30 13:07:13,597 INFO L231 Difference]: Finished difference. Result has 248 places, 177 transitions, 2936 flow [2023-08-30 13:07:13,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2848, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2936, PETRI_PLACES=248, PETRI_TRANSITIONS=177} [2023-08-30 13:07:13,597 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 210 predicate places. [2023-08-30 13:07:13,597 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 177 transitions, 2936 flow [2023-08-30 13:07:13,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:13,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:13,598 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:13,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-30 13:07:13,598 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:13,598 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:13,598 INFO L85 PathProgramCache]: Analyzing trace with hash 719886572, now seen corresponding path program 16 times [2023-08-30 13:07:13,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:13,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132979962] [2023-08-30 13:07:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:13,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:14,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:14,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132979962] [2023-08-30 13:07:14,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132979962] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:14,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:14,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:14,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580957222] [2023-08-30 13:07:14,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:14,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:14,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:14,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:14,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:14,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 267 [2023-08-30 13:07:14,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 177 transitions, 2936 flow. Second operand has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:14,742 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:14,742 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 267 [2023-08-30 13:07:14,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:15,121 INFO L130 PetriNetUnfolder]: 245/753 cut-off events. [2023-08-30 13:07:15,121 INFO L131 PetriNetUnfolder]: For 8212/8212 co-relation queries the response was YES. [2023-08-30 13:07:15,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4908 conditions, 753 events. 245/753 cut-off events. For 8212/8212 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4979 event pairs, 34 based on Foata normal form. 5/758 useless extension candidates. Maximal degree in co-relation 4861. Up to 320 conditions per place. [2023-08-30 13:07:15,124 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 104 selfloop transitions, 83 changer transitions 0/188 dead transitions. [2023-08-30 13:07:15,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 188 transitions, 3316 flow [2023-08-30 13:07:15,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:07:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:07:15,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1359 transitions. [2023-08-30 13:07:15,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4241573033707865 [2023-08-30 13:07:15,126 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1359 transitions. [2023-08-30 13:07:15,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1359 transitions. [2023-08-30 13:07:15,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:15,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1359 transitions. [2023-08-30 13:07:15,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 113.25) internal successors, (1359), 12 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,129 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,129 INFO L175 Difference]: Start difference. First operand has 248 places, 177 transitions, 2936 flow. Second operand 12 states and 1359 transitions. [2023-08-30 13:07:15,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 188 transitions, 3316 flow [2023-08-30 13:07:15,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 188 transitions, 3213 flow, removed 3 selfloop flow, removed 14 redundant places. [2023-08-30 13:07:15,148 INFO L231 Difference]: Finished difference. Result has 242 places, 173 transitions, 2950 flow [2023-08-30 13:07:15,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2784, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2950, PETRI_PLACES=242, PETRI_TRANSITIONS=173} [2023-08-30 13:07:15,148 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 204 predicate places. [2023-08-30 13:07:15,148 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 173 transitions, 2950 flow [2023-08-30 13:07:15,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 110.15384615384616) internal successors, (1432), 13 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:15,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:15,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:15,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-30 13:07:15,149 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:15,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:15,149 INFO L85 PathProgramCache]: Analyzing trace with hash 819338797, now seen corresponding path program 1 times [2023-08-30 13:07:15,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:15,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954078488] [2023-08-30 13:07:15,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:15,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:15,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:15,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:15,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954078488] [2023-08-30 13:07:15,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954078488] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:15,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:15,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:15,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191699474] [2023-08-30 13:07:15,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:15,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:15,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:15,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:15,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:16,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:16,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 173 transitions, 2950 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:16,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:16,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:16,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:17,160 INFO L130 PetriNetUnfolder]: 244/751 cut-off events. [2023-08-30 13:07:17,160 INFO L131 PetriNetUnfolder]: For 8030/8030 co-relation queries the response was YES. [2023-08-30 13:07:17,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4937 conditions, 751 events. 244/751 cut-off events. For 8030/8030 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4984 event pairs, 138 based on Foata normal form. 1/752 useless extension candidates. Maximal degree in co-relation 4896. Up to 374 conditions per place. [2023-08-30 13:07:17,163 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 134 selfloop transitions, 59 changer transitions 0/194 dead transitions. [2023-08-30 13:07:17,164 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 194 transitions, 3449 flow [2023-08-30 13:07:17,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:07:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:07:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1500 transitions. [2023-08-30 13:07:17,165 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43215211754537597 [2023-08-30 13:07:17,165 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1500 transitions. [2023-08-30 13:07:17,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1500 transitions. [2023-08-30 13:07:17,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:17,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1500 transitions. [2023-08-30 13:07:17,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.38461538461539) internal successors, (1500), 13 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:17,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:17,168 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:17,168 INFO L175 Difference]: Start difference. First operand has 242 places, 173 transitions, 2950 flow. Second operand 13 states and 1500 transitions. [2023-08-30 13:07:17,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 194 transitions, 3449 flow [2023-08-30 13:07:17,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 194 transitions, 3309 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-08-30 13:07:17,186 INFO L231 Difference]: Finished difference. Result has 248 places, 176 transitions, 2963 flow [2023-08-30 13:07:17,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2810, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2963, PETRI_PLACES=248, PETRI_TRANSITIONS=176} [2023-08-30 13:07:17,186 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 210 predicate places. [2023-08-30 13:07:17,186 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 176 transitions, 2963 flow [2023-08-30 13:07:17,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:17,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:17,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:17,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-30 13:07:17,187 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:17,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:17,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1805488047, now seen corresponding path program 2 times [2023-08-30 13:07:17,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:17,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595763772] [2023-08-30 13:07:17,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:17,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:17,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:17,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:17,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595763772] [2023-08-30 13:07:17,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595763772] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:17,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:17,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:17,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907838599] [2023-08-30 13:07:17,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:17,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:17,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:17,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:18,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 267 [2023-08-30 13:07:18,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 176 transitions, 2963 flow. Second operand has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:18,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:18,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 267 [2023-08-30 13:07:18,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:18,999 INFO L130 PetriNetUnfolder]: 243/754 cut-off events. [2023-08-30 13:07:18,999 INFO L131 PetriNetUnfolder]: For 8077/8077 co-relation queries the response was YES. [2023-08-30 13:07:19,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5080 conditions, 754 events. 243/754 cut-off events. For 8077/8077 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5014 event pairs, 158 based on Foata normal form. 1/755 useless extension candidates. Maximal degree in co-relation 5037. Up to 649 conditions per place. [2023-08-30 13:07:19,002 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 166 selfloop transitions, 28 changer transitions 0/195 dead transitions. [2023-08-30 13:07:19,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 195 transitions, 3534 flow [2023-08-30 13:07:19,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:07:19,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:07:19,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1368 transitions. [2023-08-30 13:07:19,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42696629213483145 [2023-08-30 13:07:19,004 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1368 transitions. [2023-08-30 13:07:19,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1368 transitions. [2023-08-30 13:07:19,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:19,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1368 transitions. [2023-08-30 13:07:19,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.0) internal successors, (1368), 12 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:19,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:19,007 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:19,007 INFO L175 Difference]: Start difference. First operand has 248 places, 176 transitions, 2963 flow. Second operand 12 states and 1368 transitions. [2023-08-30 13:07:19,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 195 transitions, 3534 flow [2023-08-30 13:07:19,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 195 transitions, 3425 flow, removed 0 selfloop flow, removed 9 redundant places. [2023-08-30 13:07:19,025 INFO L231 Difference]: Finished difference. Result has 253 places, 182 transitions, 3031 flow [2023-08-30 13:07:19,026 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2864, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3031, PETRI_PLACES=253, PETRI_TRANSITIONS=182} [2023-08-30 13:07:19,026 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 215 predicate places. [2023-08-30 13:07:19,026 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 182 transitions, 3031 flow [2023-08-30 13:07:19,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:19,026 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:19,026 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:19,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-30 13:07:19,026 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:19,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1074127285, now seen corresponding path program 3 times [2023-08-30 13:07:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:19,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128491498] [2023-08-30 13:07:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:19,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:19,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:19,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128491498] [2023-08-30 13:07:19,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128491498] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:19,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:19,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:19,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375748167] [2023-08-30 13:07:19,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:19,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:19,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:19,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:19,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:20,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 267 [2023-08-30 13:07:20,401 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 182 transitions, 3031 flow. Second operand has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:20,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:20,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 267 [2023-08-30 13:07:20,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:20,949 INFO L130 PetriNetUnfolder]: 242/752 cut-off events. [2023-08-30 13:07:20,949 INFO L131 PetriNetUnfolder]: For 8158/8158 co-relation queries the response was YES. [2023-08-30 13:07:20,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5093 conditions, 752 events. 242/752 cut-off events. For 8158/8158 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5001 event pairs, 152 based on Foata normal form. 1/753 useless extension candidates. Maximal degree in co-relation 5047. Up to 602 conditions per place. [2023-08-30 13:07:20,952 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 158 selfloop transitions, 38 changer transitions 0/197 dead transitions. [2023-08-30 13:07:20,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 197 transitions, 3532 flow [2023-08-30 13:07:20,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:07:20,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:07:20,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1483 transitions. [2023-08-30 13:07:20,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4272543935465284 [2023-08-30 13:07:20,954 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1483 transitions. [2023-08-30 13:07:20,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1483 transitions. [2023-08-30 13:07:20,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:20,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1483 transitions. [2023-08-30 13:07:20,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.07692307692308) internal successors, (1483), 13 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:20,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:20,957 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:20,957 INFO L175 Difference]: Start difference. First operand has 253 places, 182 transitions, 3031 flow. Second operand 13 states and 1483 transitions. [2023-08-30 13:07:20,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 197 transitions, 3532 flow [2023-08-30 13:07:20,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 197 transitions, 3495 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-30 13:07:20,978 INFO L231 Difference]: Finished difference. Result has 261 places, 185 transitions, 3121 flow [2023-08-30 13:07:20,978 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2994, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3121, PETRI_PLACES=261, PETRI_TRANSITIONS=185} [2023-08-30 13:07:20,978 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 223 predicate places. [2023-08-30 13:07:20,979 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 185 transitions, 3121 flow [2023-08-30 13:07:20,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:20,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:20,979 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:20,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-08-30 13:07:20,979 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:20,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:20,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2113901309, now seen corresponding path program 4 times [2023-08-30 13:07:20,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:20,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730725445] [2023-08-30 13:07:20,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:20,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:21,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:21,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:21,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730725445] [2023-08-30 13:07:21,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730725445] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:21,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:21,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:21,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405134034] [2023-08-30 13:07:21,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:21,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:21,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:21,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:21,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:22,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 267 [2023-08-30 13:07:22,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 185 transitions, 3121 flow. Second operand has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:22,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:22,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 267 [2023-08-30 13:07:22,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:22,798 INFO L130 PetriNetUnfolder]: 241/750 cut-off events. [2023-08-30 13:07:22,798 INFO L131 PetriNetUnfolder]: For 8469/8469 co-relation queries the response was YES. [2023-08-30 13:07:22,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5164 conditions, 750 events. 241/750 cut-off events. For 8469/8469 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4982 event pairs, 156 based on Foata normal form. 1/751 useless extension candidates. Maximal degree in co-relation 5115. Up to 594 conditions per place. [2023-08-30 13:07:22,801 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 144 selfloop transitions, 54 changer transitions 0/199 dead transitions. [2023-08-30 13:07:22,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 199 transitions, 3629 flow [2023-08-30 13:07:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 13:07:22,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 13:07:22,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1260 transitions. [2023-08-30 13:07:22,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4290091930541369 [2023-08-30 13:07:22,803 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1260 transitions. [2023-08-30 13:07:22,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1260 transitions. [2023-08-30 13:07:22,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:22,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1260 transitions. [2023-08-30 13:07:22,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.54545454545455) internal successors, (1260), 11 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:22,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:22,805 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:22,805 INFO L175 Difference]: Start difference. First operand has 261 places, 185 transitions, 3121 flow. Second operand 11 states and 1260 transitions. [2023-08-30 13:07:22,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 199 transitions, 3629 flow [2023-08-30 13:07:22,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 199 transitions, 3587 flow, removed 7 selfloop flow, removed 5 redundant places. [2023-08-30 13:07:22,825 INFO L231 Difference]: Finished difference. Result has 268 places, 188 transitions, 3240 flow [2023-08-30 13:07:22,825 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3083, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3240, PETRI_PLACES=268, PETRI_TRANSITIONS=188} [2023-08-30 13:07:22,826 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 230 predicate places. [2023-08-30 13:07:22,826 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 188 transitions, 3240 flow [2023-08-30 13:07:22,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 111.14285714285714) internal successors, (1556), 14 states have internal predecessors, (1556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:22,826 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:22,826 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:22,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2023-08-30 13:07:22,827 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:22,827 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:22,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1309089479, now seen corresponding path program 5 times [2023-08-30 13:07:22,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:22,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997466948] [2023-08-30 13:07:22,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:22,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:23,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:23,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:23,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997466948] [2023-08-30 13:07:23,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997466948] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:23,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:23,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:23,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625226274] [2023-08-30 13:07:23,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:23,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:23,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:23,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:23,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:24,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:24,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 188 transitions, 3240 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:24,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:24,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:24,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:24,711 INFO L130 PetriNetUnfolder]: 240/748 cut-off events. [2023-08-30 13:07:24,711 INFO L131 PetriNetUnfolder]: For 8688/8688 co-relation queries the response was YES. [2023-08-30 13:07:24,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5208 conditions, 748 events. 240/748 cut-off events. For 8688/8688 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4977 event pairs, 146 based on Foata normal form. 1/749 useless extension candidates. Maximal degree in co-relation 5156. Up to 471 conditions per place. [2023-08-30 13:07:24,716 INFO L137 encePairwiseOnDemand]: 257/267 looper letters, 144 selfloop transitions, 62 changer transitions 0/207 dead transitions. [2023-08-30 13:07:24,716 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 207 transitions, 3765 flow [2023-08-30 13:07:24,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:07:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:07:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1504 transitions. [2023-08-30 13:07:24,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4333045231921636 [2023-08-30 13:07:24,722 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1504 transitions. [2023-08-30 13:07:24,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1504 transitions. [2023-08-30 13:07:24,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:24,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1504 transitions. [2023-08-30 13:07:24,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 115.6923076923077) internal successors, (1504), 13 states have internal predecessors, (1504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:24,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:24,725 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:24,725 INFO L175 Difference]: Start difference. First operand has 268 places, 188 transitions, 3240 flow. Second operand 13 states and 1504 transitions. [2023-08-30 13:07:24,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 207 transitions, 3765 flow [2023-08-30 13:07:24,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 207 transitions, 3688 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-08-30 13:07:24,747 INFO L231 Difference]: Finished difference. Result has 276 places, 191 transitions, 3355 flow [2023-08-30 13:07:24,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3163, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3355, PETRI_PLACES=276, PETRI_TRANSITIONS=191} [2023-08-30 13:07:24,748 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 238 predicate places. [2023-08-30 13:07:24,748 INFO L495 AbstractCegarLoop]: Abstraction has has 276 places, 191 transitions, 3355 flow [2023-08-30 13:07:24,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:24,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:24,748 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:24,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-08-30 13:07:24,748 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:24,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:24,749 INFO L85 PathProgramCache]: Analyzing trace with hash -360007055, now seen corresponding path program 6 times [2023-08-30 13:07:24,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:24,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733986701] [2023-08-30 13:07:24,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:24,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:25,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:25,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:25,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733986701] [2023-08-30 13:07:25,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733986701] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:25,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:25,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:25,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953157476] [2023-08-30 13:07:25,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:25,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:25,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:25,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:25,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:26,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:26,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 191 transitions, 3355 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:26,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:26,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:26,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:26,817 INFO L130 PetriNetUnfolder]: 238/744 cut-off events. [2023-08-30 13:07:26,817 INFO L131 PetriNetUnfolder]: For 9241/9241 co-relation queries the response was YES. [2023-08-30 13:07:26,820 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5296 conditions, 744 events. 238/744 cut-off events. For 9241/9241 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4944 event pairs, 127 based on Foata normal form. 2/746 useless extension candidates. Maximal degree in co-relation 5241. Up to 483 conditions per place. [2023-08-30 13:07:26,822 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 159 selfloop transitions, 51 changer transitions 0/211 dead transitions. [2023-08-30 13:07:26,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 211 transitions, 3928 flow [2023-08-30 13:07:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:07:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:07:26,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1950 transitions. [2023-08-30 13:07:26,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42961004626569727 [2023-08-30 13:07:26,824 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1950 transitions. [2023-08-30 13:07:26,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1950 transitions. [2023-08-30 13:07:26,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:26,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1950 transitions. [2023-08-30 13:07:26,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 114.70588235294117) internal successors, (1950), 17 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:26,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:26,827 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:26,827 INFO L175 Difference]: Start difference. First operand has 276 places, 191 transitions, 3355 flow. Second operand 17 states and 1950 transitions. [2023-08-30 13:07:26,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 211 transitions, 3928 flow [2023-08-30 13:07:26,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 211 transitions, 3796 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-30 13:07:26,852 INFO L231 Difference]: Finished difference. Result has 285 places, 195 transitions, 3424 flow [2023-08-30 13:07:26,852 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3227, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3424, PETRI_PLACES=285, PETRI_TRANSITIONS=195} [2023-08-30 13:07:26,852 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 247 predicate places. [2023-08-30 13:07:26,852 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 195 transitions, 3424 flow [2023-08-30 13:07:26,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:26,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:26,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:26,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-08-30 13:07:26,853 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:26,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:26,853 INFO L85 PathProgramCache]: Analyzing trace with hash 465788613, now seen corresponding path program 7 times [2023-08-30 13:07:26,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:26,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456111012] [2023-08-30 13:07:26,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:26,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:26,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:27,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:27,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:27,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456111012] [2023-08-30 13:07:27,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456111012] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:27,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:27,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:27,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237255840] [2023-08-30 13:07:27,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:27,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:27,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:27,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:27,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:28,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:28,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 195 transitions, 3424 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:28,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:28,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:28,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:28,575 INFO L130 PetriNetUnfolder]: 237/741 cut-off events. [2023-08-30 13:07:28,575 INFO L131 PetriNetUnfolder]: For 9583/9583 co-relation queries the response was YES. [2023-08-30 13:07:28,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5321 conditions, 741 events. 237/741 cut-off events. For 9583/9583 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4924 event pairs, 122 based on Foata normal form. 1/742 useless extension candidates. Maximal degree in co-relation 5264. Up to 473 conditions per place. [2023-08-30 13:07:28,579 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 169 selfloop transitions, 41 changer transitions 0/211 dead transitions. [2023-08-30 13:07:28,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 211 transitions, 3937 flow [2023-08-30 13:07:28,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:07:28,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:07:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1386 transitions. [2023-08-30 13:07:28,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43258426966292135 [2023-08-30 13:07:28,581 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1386 transitions. [2023-08-30 13:07:28,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1386 transitions. [2023-08-30 13:07:28,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:28,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1386 transitions. [2023-08-30 13:07:28,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 115.5) internal successors, (1386), 12 states have internal predecessors, (1386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:28,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:28,583 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:28,583 INFO L175 Difference]: Start difference. First operand has 285 places, 195 transitions, 3424 flow. Second operand 12 states and 1386 transitions. [2023-08-30 13:07:28,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 211 transitions, 3937 flow [2023-08-30 13:07:28,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 211 transitions, 3807 flow, removed 16 selfloop flow, removed 13 redundant places. [2023-08-30 13:07:28,609 INFO L231 Difference]: Finished difference. Result has 284 places, 196 transitions, 3403 flow [2023-08-30 13:07:28,609 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3308, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3403, PETRI_PLACES=284, PETRI_TRANSITIONS=196} [2023-08-30 13:07:28,609 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 246 predicate places. [2023-08-30 13:07:28,609 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 196 transitions, 3403 flow [2023-08-30 13:07:28,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:28,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:28,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:28,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2023-08-30 13:07:28,610 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:28,610 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:28,610 INFO L85 PathProgramCache]: Analyzing trace with hash -441709849, now seen corresponding path program 8 times [2023-08-30 13:07:28,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:28,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487261062] [2023-08-30 13:07:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:28,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:29,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:29,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:29,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487261062] [2023-08-30 13:07:29,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487261062] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:29,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:29,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:29,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134824837] [2023-08-30 13:07:29,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:29,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:29,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:29,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:29,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:30,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:30,135 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 196 transitions, 3403 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:30,135 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:30,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:30,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:30,809 INFO L130 PetriNetUnfolder]: 236/740 cut-off events. [2023-08-30 13:07:30,810 INFO L131 PetriNetUnfolder]: For 9365/9365 co-relation queries the response was YES. [2023-08-30 13:07:30,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5236 conditions, 740 events. 236/740 cut-off events. For 9365/9365 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4919 event pairs, 102 based on Foata normal form. 1/741 useless extension candidates. Maximal degree in co-relation 5177. Up to 277 conditions per place. [2023-08-30 13:07:30,813 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 115 selfloop transitions, 100 changer transitions 0/216 dead transitions. [2023-08-30 13:07:30,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 216 transitions, 3977 flow [2023-08-30 13:07:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 13:07:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 13:07:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1950 transitions. [2023-08-30 13:07:30,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42961004626569727 [2023-08-30 13:07:30,815 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1950 transitions. [2023-08-30 13:07:30,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1950 transitions. [2023-08-30 13:07:30,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:30,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1950 transitions. [2023-08-30 13:07:30,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 114.70588235294117) internal successors, (1950), 17 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:30,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:30,818 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 267.0) internal successors, (4806), 18 states have internal predecessors, (4806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:30,818 INFO L175 Difference]: Start difference. First operand has 284 places, 196 transitions, 3403 flow. Second operand 17 states and 1950 transitions. [2023-08-30 13:07:30,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 216 transitions, 3977 flow [2023-08-30 13:07:30,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 216 transitions, 3880 flow, removed 1 selfloop flow, removed 9 redundant places. [2023-08-30 13:07:30,844 INFO L231 Difference]: Finished difference. Result has 293 places, 199 transitions, 3627 flow [2023-08-30 13:07:30,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3306, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3627, PETRI_PLACES=293, PETRI_TRANSITIONS=199} [2023-08-30 13:07:30,844 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 255 predicate places. [2023-08-30 13:07:30,844 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 199 transitions, 3627 flow [2023-08-30 13:07:30,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:30,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:30,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:30,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2023-08-30 13:07:30,845 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:30,845 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:30,845 INFO L85 PathProgramCache]: Analyzing trace with hash -866783833, now seen corresponding path program 9 times [2023-08-30 13:07:30,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:30,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766573262] [2023-08-30 13:07:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:30,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:31,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:31,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766573262] [2023-08-30 13:07:31,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766573262] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:31,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:31,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-08-30 13:07:31,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31209100] [2023-08-30 13:07:31,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:31,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-30 13:07:31,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:31,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-30 13:07:31,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-08-30 13:07:32,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 267 [2023-08-30 13:07:32,174 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 199 transitions, 3627 flow. Second operand has 13 states, 13 states have (on average 113.23076923076923) internal successors, (1472), 13 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:32,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:32,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 267 [2023-08-30 13:07:32,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:32,730 INFO L130 PetriNetUnfolder]: 301/944 cut-off events. [2023-08-30 13:07:32,730 INFO L131 PetriNetUnfolder]: For 12500/12500 co-relation queries the response was YES. [2023-08-30 13:07:32,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6844 conditions, 944 events. 301/944 cut-off events. For 12500/12500 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6755 event pairs, 191 based on Foata normal form. 1/945 useless extension candidates. Maximal degree in co-relation 6783. Up to 611 conditions per place. [2023-08-30 13:07:32,735 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 238 selfloop transitions, 28 changer transitions 0/267 dead transitions. [2023-08-30 13:07:32,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 267 transitions, 5115 flow [2023-08-30 13:07:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 13:07:32,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 13:07:32,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1523 transitions. [2023-08-30 13:07:32,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4387784500144051 [2023-08-30 13:07:32,736 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1523 transitions. [2023-08-30 13:07:32,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1523 transitions. [2023-08-30 13:07:32,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:32,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1523 transitions. [2023-08-30 13:07:32,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.15384615384616) internal successors, (1523), 13 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:32,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:32,739 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 267.0) internal successors, (3738), 14 states have internal predecessors, (3738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:32,739 INFO L175 Difference]: Start difference. First operand has 293 places, 199 transitions, 3627 flow. Second operand 13 states and 1523 transitions. [2023-08-30 13:07:32,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 267 transitions, 5115 flow [2023-08-30 13:07:32,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 267 transitions, 4977 flow, removed 22 selfloop flow, removed 10 redundant places. [2023-08-30 13:07:32,771 INFO L231 Difference]: Finished difference. Result has 303 places, 218 transitions, 3968 flow [2023-08-30 13:07:32,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3520, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3968, PETRI_PLACES=303, PETRI_TRANSITIONS=218} [2023-08-30 13:07:32,772 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 265 predicate places. [2023-08-30 13:07:32,772 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 218 transitions, 3968 flow [2023-08-30 13:07:32,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 113.23076923076923) internal successors, (1472), 13 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:32,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:32,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:32,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-08-30 13:07:32,773 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:32,773 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:32,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1947226919, now seen corresponding path program 10 times [2023-08-30 13:07:32,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:32,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188367852] [2023-08-30 13:07:32,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:32,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:33,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:33,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:33,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188367852] [2023-08-30 13:07:33,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188367852] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:33,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:33,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:33,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330254437] [2023-08-30 13:07:33,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:33,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:33,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:33,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:33,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:34,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:34,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 218 transitions, 3968 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:34,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:34,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:34,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:34,680 INFO L130 PetriNetUnfolder]: 300/943 cut-off events. [2023-08-30 13:07:34,680 INFO L131 PetriNetUnfolder]: For 12323/12323 co-relation queries the response was YES. [2023-08-30 13:07:34,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6779 conditions, 943 events. 300/943 cut-off events. For 12323/12323 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6750 event pairs, 140 based on Foata normal form. 1/944 useless extension candidates. Maximal degree in co-relation 6709. Up to 465 conditions per place. [2023-08-30 13:07:34,685 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 156 selfloop transitions, 74 changer transitions 0/231 dead transitions. [2023-08-30 13:07:34,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 231 transitions, 4497 flow [2023-08-30 13:07:34,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 13:07:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 13:07:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1385 transitions. [2023-08-30 13:07:34,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4322721598002497 [2023-08-30 13:07:34,686 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1385 transitions. [2023-08-30 13:07:34,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1385 transitions. [2023-08-30 13:07:34,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:34,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1385 transitions. [2023-08-30 13:07:34,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 115.41666666666667) internal successors, (1385), 12 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:34,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:34,689 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 267.0) internal successors, (3471), 13 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:34,689 INFO L175 Difference]: Start difference. First operand has 303 places, 218 transitions, 3968 flow. Second operand 12 states and 1385 transitions. [2023-08-30 13:07:34,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 231 transitions, 4497 flow [2023-08-30 13:07:34,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 231 transitions, 4468 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-08-30 13:07:34,726 INFO L231 Difference]: Finished difference. Result has 312 places, 219 transitions, 4106 flow [2023-08-30 13:07:34,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3939, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4106, PETRI_PLACES=312, PETRI_TRANSITIONS=219} [2023-08-30 13:07:34,726 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 274 predicate places. [2023-08-30 13:07:34,726 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 219 transitions, 4106 flow [2023-08-30 13:07:34,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:34,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:34,727 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:34,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-08-30 13:07:34,727 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:34,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:34,727 INFO L85 PathProgramCache]: Analyzing trace with hash 2053882669, now seen corresponding path program 11 times [2023-08-30 13:07:34,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:34,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45110418] [2023-08-30 13:07:34,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:34,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:35,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:35,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:35,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45110418] [2023-08-30 13:07:35,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45110418] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:35,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:35,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:35,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012438121] [2023-08-30 13:07:35,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:35,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:35,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:35,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:35,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:36,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:36,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 219 transitions, 4106 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:36,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:36,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:36,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:36,769 INFO L130 PetriNetUnfolder]: 297/938 cut-off events. [2023-08-30 13:07:36,769 INFO L131 PetriNetUnfolder]: For 12632/12632 co-relation queries the response was YES. [2023-08-30 13:07:36,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6785 conditions, 938 events. 297/938 cut-off events. For 12632/12632 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6758 event pairs, 102 based on Foata normal form. 3/941 useless extension candidates. Maximal degree in co-relation 6714. Up to 426 conditions per place. [2023-08-30 13:07:36,776 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 93 selfloop transitions, 142 changer transitions 0/236 dead transitions. [2023-08-30 13:07:36,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 236 transitions, 4730 flow [2023-08-30 13:07:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 13:07:36,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 13:07:36,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2169 transitions. [2023-08-30 13:07:36,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42755765819041985 [2023-08-30 13:07:36,777 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2169 transitions. [2023-08-30 13:07:36,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2169 transitions. [2023-08-30 13:07:36,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:36,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2169 transitions. [2023-08-30 13:07:36,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 114.15789473684211) internal successors, (2169), 19 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:36,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:36,782 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:36,782 INFO L175 Difference]: Start difference. First operand has 312 places, 219 transitions, 4106 flow. Second operand 19 states and 2169 transitions. [2023-08-30 13:07:36,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 236 transitions, 4730 flow [2023-08-30 13:07:36,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 236 transitions, 4592 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-08-30 13:07:36,820 INFO L231 Difference]: Finished difference. Result has 323 places, 223 transitions, 4434 flow [2023-08-30 13:07:36,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=3968, PETRI_DIFFERENCE_MINUEND_PLACES=303, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4434, PETRI_PLACES=323, PETRI_TRANSITIONS=223} [2023-08-30 13:07:36,820 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 285 predicate places. [2023-08-30 13:07:36,820 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 223 transitions, 4434 flow [2023-08-30 13:07:36,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:36,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:36,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:36,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-08-30 13:07:36,821 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:36,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:36,821 INFO L85 PathProgramCache]: Analyzing trace with hash 648673399, now seen corresponding path program 12 times [2023-08-30 13:07:36,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:36,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475237769] [2023-08-30 13:07:36,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:36,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:36,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:37,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:37,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:37,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475237769] [2023-08-30 13:07:37,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475237769] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:37,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:37,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:37,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944518177] [2023-08-30 13:07:37,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:37,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:37,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:37,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:37,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:38,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:38,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 223 transitions, 4434 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:38,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:38,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:38,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:38,693 INFO L130 PetriNetUnfolder]: 293/926 cut-off events. [2023-08-30 13:07:38,693 INFO L131 PetriNetUnfolder]: For 14164/14164 co-relation queries the response was YES. [2023-08-30 13:07:38,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6967 conditions, 926 events. 293/926 cut-off events. For 14164/14164 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6619 event pairs, 62 based on Foata normal form. 4/930 useless extension candidates. Maximal degree in co-relation 6894. Up to 552 conditions per place. [2023-08-30 13:07:38,698 INFO L137 encePairwiseOnDemand]: 255/267 looper letters, 129 selfloop transitions, 102 changer transitions 0/232 dead transitions. [2023-08-30 13:07:38,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 232 transitions, 4943 flow [2023-08-30 13:07:38,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:38,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1603 transitions. [2023-08-30 13:07:38,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4288389513108614 [2023-08-30 13:07:38,699 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1603 transitions. [2023-08-30 13:07:38,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1603 transitions. [2023-08-30 13:07:38,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:38,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1603 transitions. [2023-08-30 13:07:38,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.5) internal successors, (1603), 14 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:38,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:38,702 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:38,702 INFO L175 Difference]: Start difference. First operand has 323 places, 223 transitions, 4434 flow. Second operand 14 states and 1603 transitions. [2023-08-30 13:07:38,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 232 transitions, 4943 flow [2023-08-30 13:07:38,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 232 transitions, 4786 flow, removed 6 selfloop flow, removed 15 redundant places. [2023-08-30 13:07:38,745 INFO L231 Difference]: Finished difference. Result has 322 places, 225 transitions, 4522 flow [2023-08-30 13:07:38,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4281, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4522, PETRI_PLACES=322, PETRI_TRANSITIONS=225} [2023-08-30 13:07:38,746 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 284 predicate places. [2023-08-30 13:07:38,746 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 225 transitions, 4522 flow [2023-08-30 13:07:38,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:38,746 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:38,746 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:38,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2023-08-30 13:07:38,746 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:38,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:38,747 INFO L85 PathProgramCache]: Analyzing trace with hash 425565329, now seen corresponding path program 13 times [2023-08-30 13:07:38,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:38,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399846298] [2023-08-30 13:07:38,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:38,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:39,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:39,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:39,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399846298] [2023-08-30 13:07:39,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399846298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:39,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:39,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:39,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725804026] [2023-08-30 13:07:39,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:39,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:39,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:39,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:39,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:40,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:40,099 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 225 transitions, 4522 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:40,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:40,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:40,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:40,888 INFO L130 PetriNetUnfolder]: 292/925 cut-off events. [2023-08-30 13:07:40,888 INFO L131 PetriNetUnfolder]: For 14479/14479 co-relation queries the response was YES. [2023-08-30 13:07:40,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7018 conditions, 925 events. 292/925 cut-off events. For 14479/14479 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6601 event pairs, 69 based on Foata normal form. 1/926 useless extension candidates. Maximal degree in co-relation 6944. Up to 379 conditions per place. [2023-08-30 13:07:40,893 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 81 selfloop transitions, 154 changer transitions 0/236 dead transitions. [2023-08-30 13:07:40,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 236 transitions, 5082 flow [2023-08-30 13:07:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-08-30 13:07:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-08-30 13:07:40,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2162 transitions. [2023-08-30 13:07:40,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4261778040607136 [2023-08-30 13:07:40,895 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2162 transitions. [2023-08-30 13:07:40,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2162 transitions. [2023-08-30 13:07:40,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:40,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2162 transitions. [2023-08-30 13:07:40,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 113.78947368421052) internal successors, (2162), 19 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:40,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:40,899 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 267.0) internal successors, (5340), 20 states have internal predecessors, (5340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:40,899 INFO L175 Difference]: Start difference. First operand has 322 places, 225 transitions, 4522 flow. Second operand 19 states and 2162 transitions. [2023-08-30 13:07:40,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 236 transitions, 5082 flow [2023-08-30 13:07:40,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 236 transitions, 4906 flow, removed 1 selfloop flow, removed 11 redundant places. [2023-08-30 13:07:40,942 INFO L231 Difference]: Finished difference. Result has 331 places, 227 transitions, 4819 flow [2023-08-30 13:07:40,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4346, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4819, PETRI_PLACES=331, PETRI_TRANSITIONS=227} [2023-08-30 13:07:40,943 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 293 predicate places. [2023-08-30 13:07:40,943 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 227 transitions, 4819 flow [2023-08-30 13:07:40,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:40,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:40,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:40,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-08-30 13:07:40,944 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:40,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:40,944 INFO L85 PathProgramCache]: Analyzing trace with hash 841648449, now seen corresponding path program 14 times [2023-08-30 13:07:40,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:40,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138100620] [2023-08-30 13:07:40,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:40,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:41,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:41,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:41,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138100620] [2023-08-30 13:07:41,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138100620] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:41,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:41,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-08-30 13:07:41,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356397927] [2023-08-30 13:07:41,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:41,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-08-30 13:07:41,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:41,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-08-30 13:07:41,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-08-30 13:07:42,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 267 [2023-08-30 13:07:42,302 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 227 transitions, 4819 flow. Second operand has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:42,302 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:42,302 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 267 [2023-08-30 13:07:42,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:42,854 INFO L130 PetriNetUnfolder]: 291/922 cut-off events. [2023-08-30 13:07:42,854 INFO L131 PetriNetUnfolder]: For 16093/16093 co-relation queries the response was YES. [2023-08-30 13:07:42,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7257 conditions, 922 events. 291/922 cut-off events. For 16093/16093 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6585 event pairs, 47 based on Foata normal form. 1/923 useless extension candidates. Maximal degree in co-relation 7181. Up to 518 conditions per place. [2023-08-30 13:07:42,859 INFO L137 encePairwiseOnDemand]: 256/267 looper letters, 122 selfloop transitions, 109 changer transitions 0/232 dead transitions. [2023-08-30 13:07:42,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 232 transitions, 5308 flow [2023-08-30 13:07:42,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 13:07:42,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 13:07:42,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1598 transitions. [2023-08-30 13:07:42,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4275013376136972 [2023-08-30 13:07:42,861 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1598 transitions. [2023-08-30 13:07:42,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1598 transitions. [2023-08-30 13:07:42,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:42,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1598 transitions. [2023-08-30 13:07:42,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.14285714285714) internal successors, (1598), 14 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:42,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:42,864 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 267.0) internal successors, (4005), 15 states have internal predecessors, (4005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:42,864 INFO L175 Difference]: Start difference. First operand has 331 places, 227 transitions, 4819 flow. Second operand 14 states and 1598 transitions. [2023-08-30 13:07:42,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 232 transitions, 5308 flow [2023-08-30 13:07:42,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 232 transitions, 5111 flow, removed 8 selfloop flow, removed 16 redundant places. [2023-08-30 13:07:42,913 INFO L231 Difference]: Finished difference. Result has 329 places, 228 transitions, 4872 flow [2023-08-30 13:07:42,914 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4626, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4872, PETRI_PLACES=329, PETRI_TRANSITIONS=228} [2023-08-30 13:07:42,914 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 291 predicate places. [2023-08-30 13:07:42,914 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 228 transitions, 4872 flow [2023-08-30 13:07:42,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 112.14285714285714) internal successors, (1570), 14 states have internal predecessors, (1570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:42,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:42,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:42,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2023-08-30 13:07:42,915 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:42,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:42,915 INFO L85 PathProgramCache]: Analyzing trace with hash 748659860, now seen corresponding path program 1 times [2023-08-30 13:07:42,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:42,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460943526] [2023-08-30 13:07:42,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:42,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:43,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:43,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:43,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460943526] [2023-08-30 13:07:43,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460943526] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:43,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:43,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:07:43,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302073143] [2023-08-30 13:07:43,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:43,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:07:43,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:43,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:07:43,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:07:43,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 267 [2023-08-30 13:07:43,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 228 transitions, 4872 flow. Second operand has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:43,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:43,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 267 [2023-08-30 13:07:43,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:43,588 INFO L130 PetriNetUnfolder]: 291/1034 cut-off events. [2023-08-30 13:07:43,589 INFO L131 PetriNetUnfolder]: For 19194/19194 co-relation queries the response was YES. [2023-08-30 13:07:43,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7525 conditions, 1034 events. 291/1034 cut-off events. For 19194/19194 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 8098 event pairs, 43 based on Foata normal form. 42/1076 useless extension candidates. Maximal degree in co-relation 7449. Up to 364 conditions per place. [2023-08-30 13:07:43,613 INFO L137 encePairwiseOnDemand]: 260/267 looper letters, 128 selfloop transitions, 47 changer transitions 62/238 dead transitions. [2023-08-30 13:07:43,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 238 transitions, 5373 flow [2023-08-30 13:07:43,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:07:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:07:43,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 869 transitions. [2023-08-30 13:07:43,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4649545211342964 [2023-08-30 13:07:43,614 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 869 transitions. [2023-08-30 13:07:43,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 869 transitions. [2023-08-30 13:07:43,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:43,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 869 transitions. [2023-08-30 13:07:43,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 124.14285714285714) internal successors, (869), 7 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:43,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:43,616 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:43,616 INFO L175 Difference]: Start difference. First operand has 329 places, 228 transitions, 4872 flow. Second operand 7 states and 869 transitions. [2023-08-30 13:07:43,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 238 transitions, 5373 flow [2023-08-30 13:07:43,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 238 transitions, 5187 flow, removed 1 selfloop flow, removed 11 redundant places. [2023-08-30 13:07:43,666 INFO L231 Difference]: Finished difference. Result has 326 places, 171 transitions, 3313 flow [2023-08-30 13:07:43,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=4686, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3313, PETRI_PLACES=326, PETRI_TRANSITIONS=171} [2023-08-30 13:07:43,667 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 288 predicate places. [2023-08-30 13:07:43,667 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 171 transitions, 3313 flow [2023-08-30 13:07:43,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:43,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:43,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:43,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2023-08-30 13:07:43,667 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:43,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:43,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1420322758, now seen corresponding path program 2 times [2023-08-30 13:07:43,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:43,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89499607] [2023-08-30 13:07:43,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:43,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:44,023 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 13:07:44,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89499607] [2023-08-30 13:07:44,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89499607] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:44,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:44,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 13:07:44,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787536763] [2023-08-30 13:07:44,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:44,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 13:07:44,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:44,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 13:07:44,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-08-30 13:07:44,221 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 267 [2023-08-30 13:07:44,222 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 171 transitions, 3313 flow. Second operand has 8 states, 8 states have (on average 119.125) internal successors, (953), 8 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:44,222 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:44,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 267 [2023-08-30 13:07:44,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:44,456 INFO L130 PetriNetUnfolder]: 130/691 cut-off events. [2023-08-30 13:07:44,456 INFO L131 PetriNetUnfolder]: For 12655/12655 co-relation queries the response was YES. [2023-08-30 13:07:44,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4831 conditions, 691 events. 130/691 cut-off events. For 12655/12655 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 5600 event pairs, 15 based on Foata normal form. 42/733 useless extension candidates. Maximal degree in co-relation 4753. Up to 265 conditions per place. [2023-08-30 13:07:44,459 INFO L137 encePairwiseOnDemand]: 258/267 looper letters, 64 selfloop transitions, 29 changer transitions 81/175 dead transitions. [2023-08-30 13:07:44,459 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 175 transitions, 3459 flow [2023-08-30 13:07:44,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 13:07:44,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 13:07:44,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1094 transitions. [2023-08-30 13:07:44,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.455264253017062 [2023-08-30 13:07:44,460 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1094 transitions. [2023-08-30 13:07:44,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1094 transitions. [2023-08-30 13:07:44,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:44,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1094 transitions. [2023-08-30 13:07:44,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 121.55555555555556) internal successors, (1094), 9 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:44,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:44,462 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 267.0) internal successors, (2670), 10 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:44,462 INFO L175 Difference]: Start difference. First operand has 326 places, 171 transitions, 3313 flow. Second operand 9 states and 1094 transitions. [2023-08-30 13:07:44,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 175 transitions, 3459 flow [2023-08-30 13:07:44,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 175 transitions, 2984 flow, removed 2 selfloop flow, removed 35 redundant places. [2023-08-30 13:07:44,487 INFO L231 Difference]: Finished difference. Result has 285 places, 88 transitions, 1342 flow [2023-08-30 13:07:44,487 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=2503, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1342, PETRI_PLACES=285, PETRI_TRANSITIONS=88} [2023-08-30 13:07:44,487 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 247 predicate places. [2023-08-30 13:07:44,487 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 88 transitions, 1342 flow [2023-08-30 13:07:44,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 119.125) internal successors, (953), 8 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:44,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:07:44,488 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:07:44,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-08-30 13:07:44,489 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 13:07:44,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:07:44,489 INFO L85 PathProgramCache]: Analyzing trace with hash -571750764, now seen corresponding path program 3 times [2023-08-30 13:07:44,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:07:44,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510471206] [2023-08-30 13:07:44,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:07:44,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:07:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:07:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:07:44,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:07:44,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510471206] [2023-08-30 13:07:44,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510471206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:07:44,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:07:44,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-30 13:07:44,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396239178] [2023-08-30 13:07:44,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:07:44,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 13:07:44,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:07:44,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 13:07:44,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 13:07:44,903 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 267 [2023-08-30 13:07:44,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 88 transitions, 1342 flow. Second operand has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:44,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:07:44,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 267 [2023-08-30 13:07:44,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:07:45,022 INFO L130 PetriNetUnfolder]: 54/258 cut-off events. [2023-08-30 13:07:45,022 INFO L131 PetriNetUnfolder]: For 2850/2850 co-relation queries the response was YES. [2023-08-30 13:07:45,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1761 conditions, 258 events. 54/258 cut-off events. For 2850/2850 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1361 event pairs, 8 based on Foata normal form. 42/300 useless extension candidates. Maximal degree in co-relation 1692. Up to 84 conditions per place. [2023-08-30 13:07:45,023 INFO L137 encePairwiseOnDemand]: 261/267 looper letters, 0 selfloop transitions, 0 changer transitions 85/85 dead transitions. [2023-08-30 13:07:45,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 85 transitions, 1414 flow [2023-08-30 13:07:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 13:07:45,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 13:07:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 852 transitions. [2023-08-30 13:07:45,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45585874799357945 [2023-08-30 13:07:45,024 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 852 transitions. [2023-08-30 13:07:45,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 852 transitions. [2023-08-30 13:07:45,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:07:45,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 852 transitions. [2023-08-30 13:07:45,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.71428571428571) internal successors, (852), 7 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:45,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:45,026 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 267.0) internal successors, (2136), 8 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:45,026 INFO L175 Difference]: Start difference. First operand has 285 places, 88 transitions, 1342 flow. Second operand 7 states and 852 transitions. [2023-08-30 13:07:45,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 85 transitions, 1414 flow [2023-08-30 13:07:45,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 85 transitions, 1034 flow, removed 5 selfloop flow, removed 51 redundant places. [2023-08-30 13:07:45,031 INFO L231 Difference]: Finished difference. Result has 168 places, 0 transitions, 0 flow [2023-08-30 13:07:45,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=168, PETRI_TRANSITIONS=0} [2023-08-30 13:07:45,032 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 130 predicate places. [2023-08-30 13:07:45,032 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 0 transitions, 0 flow [2023-08-30 13:07:45,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.42857142857143) internal successors, (843), 7 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:07:45,034 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-08-30 13:07:45,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-08-30 13:07:45,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-08-30 13:07:45,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-08-30 13:07:45,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-08-30 13:07:45,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-08-30 13:07:45,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-08-30 13:07:45,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-08-30 13:07:45,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2023-08-30 13:07:45,036 INFO L445 BasicCegarLoop]: Path program histogram: [16, 14, 6, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2023-08-30 13:07:45,039 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:07:45,039 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:07:45,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:07:45 BasicIcfg [2023-08-30 13:07:45,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:07:45,042 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:07:45,042 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:07:45,042 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:07:45,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:06:02" (3/4) ... [2023-08-30 13:07:45,044 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:07:45,047 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-30 13:07:45,050 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2023-08-30 13:07:45,050 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-08-30 13:07:45,050 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:07:45,050 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:07:45,073 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:07:45,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:07:45,073 INFO L158 Benchmark]: Toolchain (without parser) took 103611.82ms. Allocated memory was 69.2MB in the beginning and 685.8MB in the end (delta: 616.6MB). Free memory was 41.6MB in the beginning and 242.9MB in the end (delta: -201.2MB). Peak memory consumption was 414.6MB. Max. memory is 16.1GB. [2023-08-30 13:07:45,073 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 69.2MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:07:45,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 745.32ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 41.4MB in the beginning and 50.7MB in the end (delta: -9.3MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-08-30 13:07:45,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.99ms. Allocated memory is still 88.1MB. Free memory was 50.7MB in the beginning and 47.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:07:45,074 INFO L158 Benchmark]: Boogie Preprocessor took 34.74ms. Allocated memory is still 88.1MB. Free memory was 47.4MB in the beginning and 44.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:07:45,074 INFO L158 Benchmark]: RCFGBuilder took 501.83ms. Allocated memory is still 88.1MB. Free memory was 44.5MB in the beginning and 42.3MB in the end (delta: 2.2MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-08-30 13:07:45,074 INFO L158 Benchmark]: TraceAbstraction took 102244.21ms. Allocated memory was 88.1MB in the beginning and 685.8MB in the end (delta: 597.7MB). Free memory was 41.6MB in the beginning and 247.1MB in the end (delta: -205.5MB). Peak memory consumption was 390.6MB. Max. memory is 16.1GB. [2023-08-30 13:07:45,075 INFO L158 Benchmark]: Witness Printer took 31.36ms. Allocated memory is still 685.8MB. Free memory was 247.1MB in the beginning and 242.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:07:45,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 69.2MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 745.32ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 41.4MB in the beginning and 50.7MB in the end (delta: -9.3MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.99ms. Allocated memory is still 88.1MB. Free memory was 50.7MB in the beginning and 47.4MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.74ms. Allocated memory is still 88.1MB. Free memory was 47.4MB in the beginning and 44.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.83ms. Allocated memory is still 88.1MB. Free memory was 44.5MB in the beginning and 42.3MB in the end (delta: 2.2MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 102244.21ms. Allocated memory was 88.1MB in the beginning and 685.8MB in the end (delta: 597.7MB). Free memory was 41.6MB in the beginning and 247.1MB in the end (delta: -205.5MB). Peak memory consumption was 390.6MB. Max. memory is 16.1GB. * Witness Printer took 31.36ms. Allocated memory is still 685.8MB. Free memory was 247.1MB in the beginning and 242.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 132 PlacesBefore, 38 PlacesAfterwards, 127 TransitionsBefore, 32 TransitionsAfterwards, 3360 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 9058 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3470, independent: 3133, independent conditional: 0, independent unconditional: 3133, dependent: 337, dependent conditional: 0, dependent unconditional: 337, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1904, independent: 1846, independent conditional: 0, independent unconditional: 1846, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3470, independent: 1287, independent conditional: 0, independent unconditional: 1287, dependent: 279, dependent conditional: 0, dependent unconditional: 279, unknown: 1904, unknown conditional: 0, unknown unconditional: 1904] , Statistics on independence cache: Total cache size (in pairs): 110, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 169 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 102.2s, OverallIterations: 68, TraceHistogramMax: 1, PathProgramHistogramMax: 16, EmptinessCheckTime: 0.0s, AutomataDifference: 62.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21004 SdHoareTripleChecker+Valid, 41.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17609 mSDsluCounter, 19566 SdHoareTripleChecker+Invalid, 35.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19383 mSDsCounter, 2595 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92730 IncrementalHoareTripleChecker+Invalid, 95325 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2595 mSolverCounterUnsat, 183 mSDtfsCounter, 92730 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1283 GetRequests, 110 SyntacticMatches, 4 SemanticMatches, 1169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3011 ImplicationChecksByTransitivity, 17.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4872occurred in iteration=65, InterpolantAutomatonStates: 879, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 32.6s InterpolantComputationTime, 903 NumberOfCodeBlocks, 903 NumberOfCodeBlocksAsserted, 68 NumberOfCheckSat, 835 ConstructedInterpolants, 0 QuantifiedInterpolants, 16089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 68 InterpolantComputations, 68 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:07:45,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE