./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-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 dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 08:50:22,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 08:50:22,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 08:50:22,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 08:50:22,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 08:50:22,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 08:50:22,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 08:50:22,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 08:50:22,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 08:50:22,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 08:50:22,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 08:50:22,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 08:50:22,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 08:50:22,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 08:50:22,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 08:50:22,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 08:50:22,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 08:50:22,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 08:50:22,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 08:50:22,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 08:50:22,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 08:50:22,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 08:50:22,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 08:50:22,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 08:50:22,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 08:50:22,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 08:50:22,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 08:50:22,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 08:50:22,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 08:50:22,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 08:50:22,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 08:50:22,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 08:50:22,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 08:50:22,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 08:50:22,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 08:50:22,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 08:50:22,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 08:50:22,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 08:50:22,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 08:50:22,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 08:50:22,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 08:50:22,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 08:50:22,433 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 08:50:22,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 08:50:22,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 08:50:22,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 08:50:22,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 08:50:22,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 08:50:22,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 08:50:22,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 08:50:22,437 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 08:50:22,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 08:50:22,438 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 08:50:22,438 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 08:50:22,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 08:50:22,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 08:50:22,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 08:50:22,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 08:50:22,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 08:50:22,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 08:50:22,439 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 08:50:22,439 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 08:50:22,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 08:50:22,440 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 08:50:22,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 08:50:22,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 08:50:22,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 08:50:22,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 08:50:22,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:22,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 08:50:22,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 08:50:22,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 08:50:22,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 08:50:22,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 08:50:22,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 08:50:22,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 08:50:22,442 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 08:50:22,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 08:50:22,443 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 08:50:22,443 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbdd132d1a656eb04120c9309772a096548e218c86a32fc06dd93d5ae981c163 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 08:50:22,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 08:50:22,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 08:50:22,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 08:50:22,757 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 08:50:22,757 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 08:50:22,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-08-30 08:50:23,989 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 08:50:24,250 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 08:50:24,250 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2023-08-30 08:50:24,265 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acb27eaf/7149827bcf344b95b52fa13ab5b5377c/FLAG8a18144d5 [2023-08-30 08:50:24,278 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1acb27eaf/7149827bcf344b95b52fa13ab5b5377c [2023-08-30 08:50:24,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 08:50:24,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 08:50:24,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:24,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 08:50:24,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 08:50:24,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:24" (1/1) ... [2023-08-30 08:50:24,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3efa1b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:24, skipping insertion in model container [2023-08-30 08:50:24,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 08:50:24" (1/1) ... [2023-08-30 08:50:24,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 08:50:24,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 08:50:24,465 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 08:50:24,817 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_2-container_of.i[75002,75015] [2023-08-30 08:50:24,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:24,861 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 08:50:24,877 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-30 08:50:24,923 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_2-container_of.i[75002,75015] [2023-08-30 08:50:24,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 08:50:25,055 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:25,055 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:25,055 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 08:50:25,061 INFO L208 MainTranslator]: Completed translation [2023-08-30 08:50:25,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25 WrapperNode [2023-08-30 08:50:25,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 08:50:25,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:25,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 08:50:25,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 08:50:25,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,133 INFO L138 Inliner]: procedures = 468, calls = 48, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 116 [2023-08-30 08:50:25,134 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 08:50:25,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 08:50:25,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 08:50:25,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 08:50:25,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,168 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 08:50:25,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 08:50:25,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 08:50:25,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 08:50:25,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (1/1) ... [2023-08-30 08:50:25,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 08:50:25,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 08:50:25,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 08:50:25,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 08:50:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 08:50:25,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 08:50:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 08:50:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 08:50:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 08:50:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 08:50:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 08:50:25,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 08:50:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-08-30 08:50:25,249 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-08-30 08:50:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 08:50:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 08:50:25,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 08:50:25,250 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 08:50:25,552 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 08:50:25,553 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 08:50:25,727 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 08:50:25,750 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 08:50:25,750 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 08:50:25,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:25 BoogieIcfgContainer [2023-08-30 08:50:25,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 08:50:25,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 08:50:25,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 08:50:25,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 08:50:25,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 08:50:24" (1/3) ... [2023-08-30 08:50:25,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4418057f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:25, skipping insertion in model container [2023-08-30 08:50:25,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 08:50:25" (2/3) ... [2023-08-30 08:50:25,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4418057f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 08:50:25, skipping insertion in model container [2023-08-30 08:50:25,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:25" (3/3) ... [2023-08-30 08:50:25,761 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2023-08-30 08:50:25,767 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 08:50:25,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 08:50:25,775 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 08:50:25,777 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 08:50:25,849 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 08:50:25,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 147 transitions, 310 flow [2023-08-30 08:50:25,976 INFO L130 PetriNetUnfolder]: 8/183 cut-off events. [2023-08-30 08:50:25,977 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 08:50:25,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 183 events. 8/183 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 304 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2023-08-30 08:50:25,982 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 147 transitions, 310 flow [2023-08-30 08:50:25,990 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 117 transitions, 243 flow [2023-08-30 08:50:26,000 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 08:50:26,012 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 117 transitions, 243 flow [2023-08-30 08:50:26,015 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 117 transitions, 243 flow [2023-08-30 08:50:26,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 117 transitions, 243 flow [2023-08-30 08:50:26,040 INFO L130 PetriNetUnfolder]: 2/117 cut-off events. [2023-08-30 08:50:26,040 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 08:50:26,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 117 events. 2/117 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 121 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 73. Up to 2 conditions per place. [2023-08-30 08:50:26,047 INFO L119 LiptonReduction]: Number of co-enabled transitions 2520 [2023-08-30 08:50:31,487 INFO L134 LiptonReduction]: Checked pairs total: 5449 [2023-08-30 08:50:31,488 INFO L136 LiptonReduction]: Total number of compositions: 110 [2023-08-30 08:50:31,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 08:50:31,506 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;@5d79e980, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 08:50:31,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-30 08:50:31,510 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2023-08-30 08:50:31,510 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 08:50:31,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:31,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-30 08:50:31,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:31,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:31,516 INFO L85 PathProgramCache]: Analyzing trace with hash 14850815, now seen corresponding path program 1 times [2023-08-30 08:50:31,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:31,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440572059] [2023-08-30 08:50:31,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:31,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:31,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:32,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:32,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440572059] [2023-08-30 08:50:32,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440572059] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:32,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:32,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 08:50:32,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593607086] [2023-08-30 08:50:32,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:32,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 08:50:32,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:32,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 08:50:32,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-30 08:50:32,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 257 [2023-08-30 08:50:32,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 55 flow. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:32,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:32,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 257 [2023-08-30 08:50:32,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:32,724 INFO L130 PetriNetUnfolder]: 108/209 cut-off events. [2023-08-30 08:50:32,724 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-08-30 08:50:32,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 209 events. 108/209 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 726 event pairs, 81 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 360. Up to 206 conditions per place. [2023-08-30 08:50:32,727 INFO L137 encePairwiseOnDemand]: 249/257 looper letters, 17 selfloop transitions, 6 changer transitions 0/23 dead transitions. [2023-08-30 08:50:32,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 101 flow [2023-08-30 08:50:32,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:50:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:50:32,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2023-08-30 08:50:32,741 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754863813229572 [2023-08-30 08:50:32,742 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2023-08-30 08:50:32,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2023-08-30 08:50:32,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:32,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2023-08-30 08:50:32,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:32,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:32,756 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:32,757 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 55 flow. Second operand 5 states and 611 transitions. [2023-08-30 08:50:32,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 101 flow [2023-08-30 08:50:32,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 96 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:32,761 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 76 flow [2023-08-30 08:50:32,763 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=76, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2023-08-30 08:50:32,765 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -1 predicate places. [2023-08-30 08:50:32,765 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 76 flow [2023-08-30 08:50:32,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:32,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:32,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 08:50:32,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 08:50:32,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:32,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:32,768 INFO L85 PathProgramCache]: Analyzing trace with hash 460376987, now seen corresponding path program 1 times [2023-08-30 08:50:32,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:32,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033306314] [2023-08-30 08:50:32,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:32,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:33,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:33,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:33,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033306314] [2023-08-30 08:50:33,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033306314] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:33,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:33,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:33,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92688954] [2023-08-30 08:50:33,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:33,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:33,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:33,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:33,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:33,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 08:50:33,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 76 flow. Second operand has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:33,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:33,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 08:50:33,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:33,649 INFO L130 PetriNetUnfolder]: 100/195 cut-off events. [2023-08-30 08:50:33,649 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2023-08-30 08:50:33,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 195 events. 100/195 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 653 event pairs, 34 based on Foata normal form. 3/158 useless extension candidates. Maximal degree in co-relation 368. Up to 177 conditions per place. [2023-08-30 08:50:33,652 INFO L137 encePairwiseOnDemand]: 250/257 looper letters, 23 selfloop transitions, 8 changer transitions 0/31 dead transitions. [2023-08-30 08:50:33,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 164 flow [2023-08-30 08:50:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:50:33,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:50:33,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2023-08-30 08:50:33,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4754863813229572 [2023-08-30 08:50:33,657 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2023-08-30 08:50:33,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2023-08-30 08:50:33,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:33,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2023-08-30 08:50:33,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:33,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:33,663 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:33,663 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 76 flow. Second operand 5 states and 611 transitions. [2023-08-30 08:50:33,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 164 flow [2023-08-30 08:50:33,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 162 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:33,665 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 121 flow [2023-08-30 08:50:33,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=121, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2023-08-30 08:50:33,666 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2023-08-30 08:50:33,666 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 121 flow [2023-08-30 08:50:33,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:33,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:33,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 08:50:33,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 08:50:33,667 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:33,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:33,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1386552957, now seen corresponding path program 1 times [2023-08-30 08:50:33,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:33,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754294013] [2023-08-30 08:50:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:33,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:34,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:34,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754294013] [2023-08-30 08:50:34,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754294013] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:34,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:34,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-30 08:50:34,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172714895] [2023-08-30 08:50:34,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:34,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 08:50:34,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:34,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 08:50:34,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-30 08:50:34,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 08:50:34,119 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 121 flow. Second operand has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,119 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:34,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 08:50:34,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:34,250 INFO L130 PetriNetUnfolder]: 94/185 cut-off events. [2023-08-30 08:50:34,250 INFO L131 PetriNetUnfolder]: For 104/104 co-relation queries the response was YES. [2023-08-30 08:50:34,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 185 events. 94/185 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 612 event pairs, 71 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 419. Up to 175 conditions per place. [2023-08-30 08:50:34,252 INFO L137 encePairwiseOnDemand]: 250/257 looper letters, 25 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2023-08-30 08:50:34,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 213 flow [2023-08-30 08:50:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 08:50:34,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 08:50:34,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 610 transitions. [2023-08-30 08:50:34,254 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47470817120622566 [2023-08-30 08:50:34,254 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 610 transitions. [2023-08-30 08:50:34,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 610 transitions. [2023-08-30 08:50:34,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:34,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 610 transitions. [2023-08-30 08:50:34,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,259 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 257.0) internal successors, (1542), 6 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,260 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 121 flow. Second operand 5 states and 610 transitions. [2023-08-30 08:50:34,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 213 flow [2023-08-30 08:50:34,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 201 flow, removed 5 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:34,262 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 162 flow [2023-08-30 08:50:34,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2023-08-30 08:50:34,263 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places. [2023-08-30 08:50:34,263 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 162 flow [2023-08-30 08:50:34,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:34,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:34,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 08:50:34,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:34,265 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:34,265 INFO L85 PathProgramCache]: Analyzing trace with hash 40623604, now seen corresponding path program 1 times [2023-08-30 08:50:34,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:34,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927487357] [2023-08-30 08:50:34,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:34,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:34,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:34,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927487357] [2023-08-30 08:50:34,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927487357] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:34,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:34,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:34,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367628196] [2023-08-30 08:50:34,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:34,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:50:34,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:34,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:50:34,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:50:34,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 08:50:34,960 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 162 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:34,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:34,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 08:50:34,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:35,087 INFO L130 PetriNetUnfolder]: 124/235 cut-off events. [2023-08-30 08:50:35,087 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-08-30 08:50:35,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 235 events. 124/235 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 844 event pairs, 26 based on Foata normal form. 8/216 useless extension candidates. Maximal degree in co-relation 357. Up to 175 conditions per place. [2023-08-30 08:50:35,089 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 29 selfloop transitions, 15 changer transitions 0/44 dead transitions. [2023-08-30 08:50:35,090 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 44 transitions, 298 flow [2023-08-30 08:50:35,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:35,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:35,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 736 transitions. [2023-08-30 08:50:35,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4773022049286641 [2023-08-30 08:50:35,092 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 736 transitions. [2023-08-30 08:50:35,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 736 transitions. [2023-08-30 08:50:35,093 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:35,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 736 transitions. [2023-08-30 08:50:35,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.66666666666667) internal successors, (736), 6 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,097 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,098 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,098 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 162 flow. Second operand 6 states and 736 transitions. [2023-08-30 08:50:35,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 44 transitions, 298 flow [2023-08-30 08:50:35,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 288 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-30 08:50:35,101 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 231 flow [2023-08-30 08:50:35,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-08-30 08:50:35,102 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 15 predicate places. [2023-08-30 08:50:35,102 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 231 flow [2023-08-30 08:50:35,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:35,103 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:35,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 08:50:35,103 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:35,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:35,104 INFO L85 PathProgramCache]: Analyzing trace with hash 40623617, now seen corresponding path program 1 times [2023-08-30 08:50:35,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:35,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767351089] [2023-08-30 08:50:35,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:35,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:35,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:35,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:35,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767351089] [2023-08-30 08:50:35,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767351089] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:35,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:35,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:35,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407195744] [2023-08-30 08:50:35,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:35,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:50:35,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:35,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:50:35,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:50:35,742 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 08:50:35,743 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 231 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:35,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 08:50:35,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:35,957 INFO L130 PetriNetUnfolder]: 112/215 cut-off events. [2023-08-30 08:50:35,957 INFO L131 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2023-08-30 08:50:35,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 215 events. 112/215 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 744 event pairs, 27 based on Foata normal form. 4/196 useless extension candidates. Maximal degree in co-relation 372. Up to 177 conditions per place. [2023-08-30 08:50:35,959 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 29 selfloop transitions, 14 changer transitions 0/43 dead transitions. [2023-08-30 08:50:35,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 43 transitions, 333 flow [2023-08-30 08:50:35,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:50:35,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:50:35,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 852 transitions. [2023-08-30 08:50:35,962 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4735964424680378 [2023-08-30 08:50:35,962 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 852 transitions. [2023-08-30 08:50:35,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 852 transitions. [2023-08-30 08:50:35,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:35,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 852 transitions. [2023-08-30 08:50:35,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.71428571428571) internal successors, (852), 7 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,968 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,968 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 231 flow. Second operand 7 states and 852 transitions. [2023-08-30 08:50:35,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 43 transitions, 333 flow [2023-08-30 08:50:35,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 43 transitions, 318 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-30 08:50:35,971 INFO L231 Difference]: Finished difference. Result has 49 places, 35 transitions, 251 flow [2023-08-30 08:50:35,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2023-08-30 08:50:35,972 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2023-08-30 08:50:35,972 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 251 flow [2023-08-30 08:50:35,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:35,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:35,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:35,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-30 08:50:35,973 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:35,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:35,974 INFO L85 PathProgramCache]: Analyzing trace with hash 33470987, now seen corresponding path program 2 times [2023-08-30 08:50:35,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:35,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043175613] [2023-08-30 08:50:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:35,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:36,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:36,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:36,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043175613] [2023-08-30 08:50:36,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043175613] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:36,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:36,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:36,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944020708] [2023-08-30 08:50:36,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:36,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:50:36,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:36,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:50:36,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:50:36,686 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 08:50:36,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 251 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,688 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:36,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 08:50:36,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:36,921 INFO L130 PetriNetUnfolder]: 144/269 cut-off events. [2023-08-30 08:50:36,921 INFO L131 PetriNetUnfolder]: For 381/381 co-relation queries the response was YES. [2023-08-30 08:50:36,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 269 events. 144/269 cut-off events. For 381/381 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 990 event pairs, 35 based on Foata normal form. 8/250 useless extension candidates. Maximal degree in co-relation 574. Up to 114 conditions per place. [2023-08-30 08:50:36,923 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 29 selfloop transitions, 26 changer transitions 4/59 dead transitions. [2023-08-30 08:50:36,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 499 flow [2023-08-30 08:50:36,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:50:36,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:50:36,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1096 transitions. [2023-08-30 08:50:36,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4738434932987462 [2023-08-30 08:50:36,927 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1096 transitions. [2023-08-30 08:50:36,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1096 transitions. [2023-08-30 08:50:36,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:36,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1096 transitions. [2023-08-30 08:50:36,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 121.77777777777777) internal successors, (1096), 9 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,933 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,933 INFO L175 Difference]: Start difference. First operand has 49 places, 35 transitions, 251 flow. Second operand 9 states and 1096 transitions. [2023-08-30 08:50:36,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 499 flow [2023-08-30 08:50:36,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 59 transitions, 447 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-30 08:50:36,943 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 330 flow [2023-08-30 08:50:36,943 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=330, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2023-08-30 08:50:36,945 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 23 predicate places. [2023-08-30 08:50:36,945 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 330 flow [2023-08-30 08:50:36,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:36,946 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:36,946 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:36,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-30 08:50:36,947 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:36,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:36,947 INFO L85 PathProgramCache]: Analyzing trace with hash 33473777, now seen corresponding path program 3 times [2023-08-30 08:50:36,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:36,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833457121] [2023-08-30 08:50:36,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:36,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:37,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:37,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833457121] [2023-08-30 08:50:37,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833457121] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:37,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:37,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:37,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585405218] [2023-08-30 08:50:37,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:37,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:50:37,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:37,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:50:37,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:50:37,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 257 [2023-08-30 08:50:37,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 330 flow. Second operand has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:37,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:37,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 257 [2023-08-30 08:50:37,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:38,104 INFO L130 PetriNetUnfolder]: 137/259 cut-off events. [2023-08-30 08:50:38,104 INFO L131 PetriNetUnfolder]: For 391/391 co-relation queries the response was YES. [2023-08-30 08:50:38,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 259 events. 137/259 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 971 event pairs, 34 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 632. Up to 107 conditions per place. [2023-08-30 08:50:38,107 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 31 selfloop transitions, 26 changer transitions 2/59 dead transitions. [2023-08-30 08:50:38,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 59 transitions, 506 flow [2023-08-30 08:50:38,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:50:38,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:50:38,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1111 transitions. [2023-08-30 08:50:38,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4803285776048422 [2023-08-30 08:50:38,111 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1111 transitions. [2023-08-30 08:50:38,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1111 transitions. [2023-08-30 08:50:38,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:38,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1111 transitions. [2023-08-30 08:50:38,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 123.44444444444444) internal successors, (1111), 9 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,119 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,119 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 330 flow. Second operand 9 states and 1111 transitions. [2023-08-30 08:50:38,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 59 transitions, 506 flow [2023-08-30 08:50:38,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 59 transitions, 462 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-30 08:50:38,122 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 388 flow [2023-08-30 08:50:38,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=388, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2023-08-30 08:50:38,123 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 27 predicate places. [2023-08-30 08:50:38,123 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 388 flow [2023-08-30 08:50:38,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 118.875) internal successors, (951), 8 states have internal predecessors, (951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:38,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:38,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-30 08:50:38,125 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:38,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:38,125 INFO L85 PathProgramCache]: Analyzing trace with hash 33473764, now seen corresponding path program 2 times [2023-08-30 08:50:38,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:38,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152078628] [2023-08-30 08:50:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:38,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:38,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:38,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152078628] [2023-08-30 08:50:38,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152078628] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:38,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:38,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:38,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24486616] [2023-08-30 08:50:38,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:38,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:50:38,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:38,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:50:38,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:50:38,906 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 257 [2023-08-30 08:50:38,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 388 flow. Second operand has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:38,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:38,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 257 [2023-08-30 08:50:38,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:39,077 INFO L130 PetriNetUnfolder]: 119/229 cut-off events. [2023-08-30 08:50:39,077 INFO L131 PetriNetUnfolder]: For 635/635 co-relation queries the response was YES. [2023-08-30 08:50:39,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 229 events. 119/229 cut-off events. For 635/635 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 818 event pairs, 15 based on Foata normal form. 6/226 useless extension candidates. Maximal degree in co-relation 570. Up to 106 conditions per place. [2023-08-30 08:50:39,080 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 29 selfloop transitions, 25 changer transitions 2/56 dead transitions. [2023-08-30 08:50:39,080 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 530 flow [2023-08-30 08:50:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-30 08:50:39,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-30 08:50:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 854 transitions. [2023-08-30 08:50:39,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47470817120622566 [2023-08-30 08:50:39,083 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 854 transitions. [2023-08-30 08:50:39,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 854 transitions. [2023-08-30 08:50:39,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:39,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 854 transitions. [2023-08-30 08:50:39,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,089 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 257.0) internal successors, (2056), 8 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,089 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 388 flow. Second operand 7 states and 854 transitions. [2023-08-30 08:50:39,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 530 flow [2023-08-30 08:50:39,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 515 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:39,093 INFO L231 Difference]: Finished difference. Result has 60 places, 45 transitions, 439 flow [2023-08-30 08:50:39,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=439, PETRI_PLACES=60, PETRI_TRANSITIONS=45} [2023-08-30 08:50:39,095 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2023-08-30 08:50:39,096 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 45 transitions, 439 flow [2023-08-30 08:50:39,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 116.875) internal successors, (935), 8 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:39,096 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:39,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-30 08:50:39,097 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:39,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:39,101 INFO L85 PathProgramCache]: Analyzing trace with hash 33470974, now seen corresponding path program 3 times [2023-08-30 08:50:39,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:39,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405525321] [2023-08-30 08:50:39,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:39,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:39,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:39,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:39,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405525321] [2023-08-30 08:50:39,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405525321] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:39,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:39,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:39,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144864042] [2023-08-30 08:50:39,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:39,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:50:39,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:39,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:50:39,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:50:39,809 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-08-30 08:50:39,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 45 transitions, 439 flow. Second operand has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,810 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:39,810 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-08-30 08:50:39,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:39,974 INFO L130 PetriNetUnfolder]: 107/209 cut-off events. [2023-08-30 08:50:39,975 INFO L131 PetriNetUnfolder]: For 846/846 co-relation queries the response was YES. [2023-08-30 08:50:39,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 209 events. 107/209 cut-off events. For 846/846 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 722 event pairs, 15 based on Foata normal form. 4/208 useless extension candidates. Maximal degree in co-relation 632. Up to 102 conditions per place. [2023-08-30 08:50:39,976 INFO L137 encePairwiseOnDemand]: 249/257 looper letters, 25 selfloop transitions, 24 changer transitions 2/51 dead transitions. [2023-08-30 08:50:39,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 51 transitions, 553 flow [2023-08-30 08:50:39,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-30 08:50:39,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-30 08:50:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2023-08-30 08:50:39,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4662775616083009 [2023-08-30 08:50:39,979 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 719 transitions. [2023-08-30 08:50:39,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 719 transitions. [2023-08-30 08:50:39,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:39,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 719 transitions. [2023-08-30 08:50:39,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.83333333333333) internal successors, (719), 6 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,983 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 257.0) internal successors, (1799), 7 states have internal predecessors, (1799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,984 INFO L175 Difference]: Start difference. First operand has 60 places, 45 transitions, 439 flow. Second operand 6 states and 719 transitions. [2023-08-30 08:50:39,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 51 transitions, 553 flow [2023-08-30 08:50:39,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 51 transitions, 514 flow, removed 7 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:39,988 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 465 flow [2023-08-30 08:50:39,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=465, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2023-08-30 08:50:39,989 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 34 predicate places. [2023-08-30 08:50:39,989 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 465 flow [2023-08-30 08:50:39,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:39,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:39,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:39,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-30 08:50:39,990 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:39,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:39,991 INFO L85 PathProgramCache]: Analyzing trace with hash 33473778, now seen corresponding path program 1 times [2023-08-30 08:50:39,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:39,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527616373] [2023-08-30 08:50:39,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:39,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:40,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:40,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527616373] [2023-08-30 08:50:40,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527616373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:40,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:40,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:40,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423326990] [2023-08-30 08:50:40,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:40,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-30 08:50:40,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:40,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-30 08:50:40,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-30 08:50:40,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-08-30 08:50:40,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 465 flow. Second operand has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:40,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:40,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-08-30 08:50:40,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:41,044 INFO L130 PetriNetUnfolder]: 102/198 cut-off events. [2023-08-30 08:50:41,044 INFO L131 PetriNetUnfolder]: For 1021/1021 co-relation queries the response was YES. [2023-08-30 08:50:41,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 198 events. 102/198 cut-off events. For 1021/1021 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 672 event pairs, 18 based on Foata normal form. 4/197 useless extension candidates. Maximal degree in co-relation 661. Up to 99 conditions per place. [2023-08-30 08:50:41,046 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 26 selfloop transitions, 26 changer transitions 2/54 dead transitions. [2023-08-30 08:50:41,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 54 transitions, 583 flow [2023-08-30 08:50:41,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-30 08:50:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-30 08:50:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 955 transitions. [2023-08-30 08:50:41,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46449416342412453 [2023-08-30 08:50:41,049 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 955 transitions. [2023-08-30 08:50:41,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 955 transitions. [2023-08-30 08:50:41,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:41,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 955 transitions. [2023-08-30 08:50:41,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 119.375) internal successors, (955), 8 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 257.0) internal successors, (2313), 9 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,055 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 257.0) internal successors, (2313), 9 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,055 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 465 flow. Second operand 8 states and 955 transitions. [2023-08-30 08:50:41,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 54 transitions, 583 flow [2023-08-30 08:50:41,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 54 transitions, 487 flow, removed 5 selfloop flow, removed 8 redundant places. [2023-08-30 08:50:41,059 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 411 flow [2023-08-30 08:50:41,060 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=411, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2023-08-30 08:50:41,060 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2023-08-30 08:50:41,060 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 411 flow [2023-08-30 08:50:41,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 114.875) internal successors, (919), 8 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:41,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:41,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-30 08:50:41,062 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:41,062 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:41,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1637625285, now seen corresponding path program 1 times [2023-08-30 08:50:41,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:41,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141837338] [2023-08-30 08:50:41,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:41,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:41,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:41,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:41,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141837338] [2023-08-30 08:50:41,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141837338] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:41,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:41,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:41,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475276723] [2023-08-30 08:50:41,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:41,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:41,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:41,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:41,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:41,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-08-30 08:50:41,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 411 flow. Second operand has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:41,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:41,820 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-08-30 08:50:41,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:42,113 INFO L130 PetriNetUnfolder]: 130/271 cut-off events. [2023-08-30 08:50:42,113 INFO L131 PetriNetUnfolder]: For 780/780 co-relation queries the response was YES. [2023-08-30 08:50:42,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 271 events. 130/271 cut-off events. For 780/780 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1130 event pairs, 59 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 790. Up to 185 conditions per place. [2023-08-30 08:50:42,116 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 55 selfloop transitions, 17 changer transitions 3/75 dead transitions. [2023-08-30 08:50:42,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 75 transitions, 710 flow [2023-08-30 08:50:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:50:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:50:42,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1306 transitions. [2023-08-30 08:50:42,120 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46197382384152813 [2023-08-30 08:50:42,120 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1306 transitions. [2023-08-30 08:50:42,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1306 transitions. [2023-08-30 08:50:42,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:42,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1306 transitions. [2023-08-30 08:50:42,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 118.72727272727273) internal successors, (1306), 11 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,127 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,128 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 411 flow. Second operand 11 states and 1306 transitions. [2023-08-30 08:50:42,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 75 transitions, 710 flow [2023-08-30 08:50:42,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 649 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-30 08:50:42,132 INFO L231 Difference]: Finished difference. Result has 72 places, 55 transitions, 506 flow [2023-08-30 08:50:42,132 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=506, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2023-08-30 08:50:42,132 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 43 predicate places. [2023-08-30 08:50:42,132 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 506 flow [2023-08-30 08:50:42,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:42,133 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:42,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-30 08:50:42,134 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:42,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:42,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1637625284, now seen corresponding path program 1 times [2023-08-30 08:50:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:42,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992482717] [2023-08-30 08:50:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:42,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:42,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:42,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992482717] [2023-08-30 08:50:42,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992482717] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:42,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:42,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:42,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820662911] [2023-08-30 08:50:42,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:42,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:42,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:42,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:42,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:42,572 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 08:50:42,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 506 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:42,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 08:50:42,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:42,823 INFO L130 PetriNetUnfolder]: 145/331 cut-off events. [2023-08-30 08:50:42,823 INFO L131 PetriNetUnfolder]: For 903/903 co-relation queries the response was YES. [2023-08-30 08:50:42,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1321 conditions, 331 events. 145/331 cut-off events. For 903/903 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1585 event pairs, 13 based on Foata normal form. 8/339 useless extension candidates. Maximal degree in co-relation 1056. Up to 102 conditions per place. [2023-08-30 08:50:42,826 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 54 selfloop transitions, 29 changer transitions 3/86 dead transitions. [2023-08-30 08:50:42,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 86 transitions, 800 flow [2023-08-30 08:50:42,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:50:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:50:42,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1129 transitions. [2023-08-30 08:50:42,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48811067877215736 [2023-08-30 08:50:42,829 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1129 transitions. [2023-08-30 08:50:42,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1129 transitions. [2023-08-30 08:50:42,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:42,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1129 transitions. [2023-08-30 08:50:42,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 125.44444444444444) internal successors, (1129), 9 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,835 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,836 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,836 INFO L175 Difference]: Start difference. First operand has 72 places, 55 transitions, 506 flow. Second operand 9 states and 1129 transitions. [2023-08-30 08:50:42,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 86 transitions, 800 flow [2023-08-30 08:50:42,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 86 transitions, 787 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-30 08:50:42,841 INFO L231 Difference]: Finished difference. Result has 80 places, 60 transitions, 620 flow [2023-08-30 08:50:42,841 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=620, PETRI_PLACES=80, PETRI_TRANSITIONS=60} [2023-08-30 08:50:42,842 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 51 predicate places. [2023-08-30 08:50:42,842 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 60 transitions, 620 flow [2023-08-30 08:50:42,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:42,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:42,843 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:42,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-30 08:50:42,843 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:42,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:42,844 INFO L85 PathProgramCache]: Analyzing trace with hash 363149565, now seen corresponding path program 2 times [2023-08-30 08:50:42,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:42,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305693929] [2023-08-30 08:50:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:42,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:43,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:43,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:43,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305693929] [2023-08-30 08:50:43,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305693929] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:43,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:43,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:43,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459552325] [2023-08-30 08:50:43,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:43,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:43,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:43,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:43,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:43,863 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:50:43,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 60 transitions, 620 flow. Second operand has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:43,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:43,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:50:43,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:44,674 INFO L130 PetriNetUnfolder]: 217/489 cut-off events. [2023-08-30 08:50:44,674 INFO L131 PetriNetUnfolder]: For 2316/2316 co-relation queries the response was YES. [2023-08-30 08:50:44,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2127 conditions, 489 events. 217/489 cut-off events. For 2316/2316 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2661 event pairs, 38 based on Foata normal form. 15/504 useless extension candidates. Maximal degree in co-relation 1640. Up to 201 conditions per place. [2023-08-30 08:50:44,678 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 65 selfloop transitions, 69 changer transitions 11/145 dead transitions. [2023-08-30 08:50:44,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 145 transitions, 1504 flow [2023-08-30 08:50:44,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-30 08:50:44,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-30 08:50:44,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2432 transitions. [2023-08-30 08:50:44,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4506207152121549 [2023-08-30 08:50:44,685 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2432 transitions. [2023-08-30 08:50:44,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2432 transitions. [2023-08-30 08:50:44,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:44,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2432 transitions. [2023-08-30 08:50:44,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 115.80952380952381) internal successors, (2432), 21 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,710 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,710 INFO L175 Difference]: Start difference. First operand has 80 places, 60 transitions, 620 flow. Second operand 21 states and 2432 transitions. [2023-08-30 08:50:44,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 145 transitions, 1504 flow [2023-08-30 08:50:44,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 145 transitions, 1456 flow, removed 13 selfloop flow, removed 5 redundant places. [2023-08-30 08:50:44,725 INFO L231 Difference]: Finished difference. Result has 100 places, 99 transitions, 1174 flow [2023-08-30 08:50:44,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1174, PETRI_PLACES=100, PETRI_TRANSITIONS=99} [2023-08-30 08:50:44,727 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 71 predicate places. [2023-08-30 08:50:44,727 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 99 transitions, 1174 flow [2023-08-30 08:50:44,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:44,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:44,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:44,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-30 08:50:44,728 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:44,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:44,728 INFO L85 PathProgramCache]: Analyzing trace with hash 381323248, now seen corresponding path program 2 times [2023-08-30 08:50:44,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:44,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511243095] [2023-08-30 08:50:44,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:44,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:45,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:45,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:45,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511243095] [2023-08-30 08:50:45,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511243095] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:45,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:45,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:45,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74715181] [2023-08-30 08:50:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:45,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:45,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:45,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:45,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:45,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 08:50:45,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 1174 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,282 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:45,282 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 08:50:45,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:45,562 INFO L130 PetriNetUnfolder]: 197/458 cut-off events. [2023-08-30 08:50:45,562 INFO L131 PetriNetUnfolder]: For 2856/2856 co-relation queries the response was YES. [2023-08-30 08:50:45,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2200 conditions, 458 events. 197/458 cut-off events. For 2856/2856 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2509 event pairs, 57 based on Foata normal form. 9/467 useless extension candidates. Maximal degree in co-relation 1900. Up to 174 conditions per place. [2023-08-30 08:50:45,566 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 68 selfloop transitions, 45 changer transitions 4/117 dead transitions. [2023-08-30 08:50:45,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 117 transitions, 1433 flow [2023-08-30 08:50:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:50:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:50:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1248 transitions. [2023-08-30 08:50:45,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4856031128404669 [2023-08-30 08:50:45,569 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1248 transitions. [2023-08-30 08:50:45,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1248 transitions. [2023-08-30 08:50:45,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:45,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1248 transitions. [2023-08-30 08:50:45,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.8) internal successors, (1248), 10 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,575 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,575 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 1174 flow. Second operand 10 states and 1248 transitions. [2023-08-30 08:50:45,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 117 transitions, 1433 flow [2023-08-30 08:50:45,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 117 transitions, 1273 flow, removed 47 selfloop flow, removed 8 redundant places. [2023-08-30 08:50:45,591 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 1066 flow [2023-08-30 08:50:45,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1066, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2023-08-30 08:50:45,592 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 73 predicate places. [2023-08-30 08:50:45,592 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 1066 flow [2023-08-30 08:50:45,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:45,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:45,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:45,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-30 08:50:45,593 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:45,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:45,593 INFO L85 PathProgramCache]: Analyzing trace with hash 364630678, now seen corresponding path program 3 times [2023-08-30 08:50:45,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:45,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771630994] [2023-08-30 08:50:45,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:45,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:45,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:45,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771630994] [2023-08-30 08:50:45,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771630994] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:45,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:45,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:45,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221488384] [2023-08-30 08:50:45,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:45,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:45,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:45,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:45,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:46,163 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 08:50:46,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 1066 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,164 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:46,164 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 08:50:46,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:46,447 INFO L130 PetriNetUnfolder]: 192/445 cut-off events. [2023-08-30 08:50:46,447 INFO L131 PetriNetUnfolder]: For 2447/2447 co-relation queries the response was YES. [2023-08-30 08:50:46,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 445 events. 192/445 cut-off events. For 2447/2447 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2384 event pairs, 42 based on Foata normal form. 6/451 useless extension candidates. Maximal degree in co-relation 1863. Up to 204 conditions per place. [2023-08-30 08:50:46,451 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 56 selfloop transitions, 56 changer transitions 3/115 dead transitions. [2023-08-30 08:50:46,451 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 115 transitions, 1390 flow [2023-08-30 08:50:46,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:50:46,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:50:46,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1483 transitions. [2023-08-30 08:50:46,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4808690012970169 [2023-08-30 08:50:46,456 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1483 transitions. [2023-08-30 08:50:46,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1483 transitions. [2023-08-30 08:50:46,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:46,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1483 transitions. [2023-08-30 08:50:46,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 123.58333333333333) internal successors, (1483), 12 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,464 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,464 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 1066 flow. Second operand 12 states and 1483 transitions. [2023-08-30 08:50:46,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 115 transitions, 1390 flow [2023-08-30 08:50:46,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 115 transitions, 1323 flow, removed 10 selfloop flow, removed 7 redundant places. [2023-08-30 08:50:46,475 INFO L231 Difference]: Finished difference. Result has 108 places, 96 transitions, 1236 flow [2023-08-30 08:50:46,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=971, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1236, PETRI_PLACES=108, PETRI_TRANSITIONS=96} [2023-08-30 08:50:46,476 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 79 predicate places. [2023-08-30 08:50:46,476 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 96 transitions, 1236 flow [2023-08-30 08:50:46,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:46,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:46,477 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:46,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-30 08:50:46,477 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:46,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:46,477 INFO L85 PathProgramCache]: Analyzing trace with hash 384551727, now seen corresponding path program 1 times [2023-08-30 08:50:46,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:46,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952868545] [2023-08-30 08:50:46,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:46,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:47,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:47,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:47,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952868545] [2023-08-30 08:50:47,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952868545] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:47,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:47,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:47,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283256239] [2023-08-30 08:50:47,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:47,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:47,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:47,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:47,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:47,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 08:50:47,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 96 transitions, 1236 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:47,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 08:50:47,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:47,718 INFO L130 PetriNetUnfolder]: 189/453 cut-off events. [2023-08-30 08:50:47,718 INFO L131 PetriNetUnfolder]: For 3083/3083 co-relation queries the response was YES. [2023-08-30 08:50:47,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2292 conditions, 453 events. 189/453 cut-off events. For 3083/3083 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2512 event pairs, 58 based on Foata normal form. 2/455 useless extension candidates. Maximal degree in co-relation 2053. Up to 318 conditions per place. [2023-08-30 08:50:47,722 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 64 selfloop transitions, 36 changer transitions 18/118 dead transitions. [2023-08-30 08:50:47,722 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 118 transitions, 1646 flow [2023-08-30 08:50:47,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:50:47,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:50:47,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1296 transitions. [2023-08-30 08:50:47,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45843650512911216 [2023-08-30 08:50:47,724 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1296 transitions. [2023-08-30 08:50:47,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1296 transitions. [2023-08-30 08:50:47,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:47,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1296 transitions. [2023-08-30 08:50:47,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.81818181818181) internal successors, (1296), 11 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,730 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,730 INFO L175 Difference]: Start difference. First operand has 108 places, 96 transitions, 1236 flow. Second operand 11 states and 1296 transitions. [2023-08-30 08:50:47,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 118 transitions, 1646 flow [2023-08-30 08:50:47,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 118 transitions, 1566 flow, removed 13 selfloop flow, removed 9 redundant places. [2023-08-30 08:50:47,745 INFO L231 Difference]: Finished difference. Result has 110 places, 93 transitions, 1202 flow [2023-08-30 08:50:47,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1152, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1202, PETRI_PLACES=110, PETRI_TRANSITIONS=93} [2023-08-30 08:50:47,747 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 81 predicate places. [2023-08-30 08:50:47,747 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 93 transitions, 1202 flow [2023-08-30 08:50:47,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:47,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:47,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:47,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-30 08:50:47,748 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:47,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:47,748 INFO L85 PathProgramCache]: Analyzing trace with hash 364630679, now seen corresponding path program 3 times [2023-08-30 08:50:47,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884986391] [2023-08-30 08:50:47,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:47,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:48,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:48,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884986391] [2023-08-30 08:50:48,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884986391] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:48,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:48,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:48,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468212123] [2023-08-30 08:50:48,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:48,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:48,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:48,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:48,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:48,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:50:48,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 93 transitions, 1202 flow. Second operand has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:48,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:48,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:50:48,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:49,141 INFO L130 PetriNetUnfolder]: 166/416 cut-off events. [2023-08-30 08:50:49,142 INFO L131 PetriNetUnfolder]: For 2868/2868 co-relation queries the response was YES. [2023-08-30 08:50:49,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2126 conditions, 416 events. 166/416 cut-off events. For 2868/2868 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2301 event pairs, 28 based on Foata normal form. 9/425 useless extension candidates. Maximal degree in co-relation 1988. Up to 121 conditions per place. [2023-08-30 08:50:49,145 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 51 selfloop transitions, 66 changer transitions 4/121 dead transitions. [2023-08-30 08:50:49,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 121 transitions, 1590 flow [2023-08-30 08:50:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:50:49,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:50:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1843 transitions. [2023-08-30 08:50:49,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4482003891050584 [2023-08-30 08:50:49,148 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1843 transitions. [2023-08-30 08:50:49,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1843 transitions. [2023-08-30 08:50:49,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:49,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1843 transitions. [2023-08-30 08:50:49,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 115.1875) internal successors, (1843), 16 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,158 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,158 INFO L175 Difference]: Start difference. First operand has 110 places, 93 transitions, 1202 flow. Second operand 16 states and 1843 transitions. [2023-08-30 08:50:49,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 121 transitions, 1590 flow [2023-08-30 08:50:49,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 121 transitions, 1474 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-08-30 08:50:49,171 INFO L231 Difference]: Finished difference. Result has 118 places, 98 transitions, 1346 flow [2023-08-30 08:50:49,171 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1346, PETRI_PLACES=118, PETRI_TRANSITIONS=98} [2023-08-30 08:50:49,171 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 89 predicate places. [2023-08-30 08:50:49,171 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 98 transitions, 1346 flow [2023-08-30 08:50:49,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:49,172 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:49,172 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:49,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-30 08:50:49,172 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:49,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:49,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1625384625, now seen corresponding path program 4 times [2023-08-30 08:50:49,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:49,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916071681] [2023-08-30 08:50:49,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:49,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:49,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:49,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916071681] [2023-08-30 08:50:49,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916071681] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:49,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:49,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:49,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547967595] [2023-08-30 08:50:49,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:49,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:49,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:49,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:49,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:50,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 08:50:50,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 98 transitions, 1346 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:50,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 08:50:50,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:50,598 INFO L130 PetriNetUnfolder]: 164/409 cut-off events. [2023-08-30 08:50:50,598 INFO L131 PetriNetUnfolder]: For 2981/2981 co-relation queries the response was YES. [2023-08-30 08:50:50,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 409 events. 164/409 cut-off events. For 2981/2981 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2253 event pairs, 18 based on Foata normal form. 3/412 useless extension candidates. Maximal degree in co-relation 2054. Up to 136 conditions per place. [2023-08-30 08:50:50,601 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 46 selfloop transitions, 69 changer transitions 4/119 dead transitions. [2023-08-30 08:50:50,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 119 transitions, 1682 flow [2023-08-30 08:50:50,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:50:50,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:50:50,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1868 transitions. [2023-08-30 08:50:50,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45428015564202334 [2023-08-30 08:50:50,605 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1868 transitions. [2023-08-30 08:50:50,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1868 transitions. [2023-08-30 08:50:50,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:50,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1868 transitions. [2023-08-30 08:50:50,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 116.75) internal successors, (1868), 16 states have internal predecessors, (1868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,613 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,613 INFO L175 Difference]: Start difference. First operand has 118 places, 98 transitions, 1346 flow. Second operand 16 states and 1868 transitions. [2023-08-30 08:50:50,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 119 transitions, 1682 flow [2023-08-30 08:50:50,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 119 transitions, 1635 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-08-30 08:50:50,627 INFO L231 Difference]: Finished difference. Result has 130 places, 100 transitions, 1533 flow [2023-08-30 08:50:50,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1291, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1533, PETRI_PLACES=130, PETRI_TRANSITIONS=100} [2023-08-30 08:50:50,628 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 101 predicate places. [2023-08-30 08:50:50,628 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 100 transitions, 1533 flow [2023-08-30 08:50:50,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:50,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:50,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:50,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-30 08:50:50,629 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:50,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:50,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1625384624, now seen corresponding path program 4 times [2023-08-30 08:50:50,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:50,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729024154] [2023-08-30 08:50:50,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:50,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:51,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:51,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:51,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729024154] [2023-08-30 08:50:51,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729024154] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:51,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:51,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-30 08:50:51,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193538271] [2023-08-30 08:50:51,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:51,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-30 08:50:51,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:51,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-30 08:50:51,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-08-30 08:50:51,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 257 [2023-08-30 08:50:51,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 100 transitions, 1533 flow. Second operand has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:51,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 257 [2023-08-30 08:50:51,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:51,910 INFO L130 PetriNetUnfolder]: 159/395 cut-off events. [2023-08-30 08:50:51,910 INFO L131 PetriNetUnfolder]: For 3812/3812 co-relation queries the response was YES. [2023-08-30 08:50:51,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 395 events. 159/395 cut-off events. For 3812/3812 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2152 event pairs, 20 based on Foata normal form. 11/406 useless extension candidates. Maximal degree in co-relation 2131. Up to 208 conditions per place. [2023-08-30 08:50:51,914 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 49 selfloop transitions, 53 changer transitions 2/104 dead transitions. [2023-08-30 08:50:51,914 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 104 transitions, 1715 flow [2023-08-30 08:50:51,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:50:51,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:50:51,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1296 transitions. [2023-08-30 08:50:51,916 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45843650512911216 [2023-08-30 08:50:51,916 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1296 transitions. [2023-08-30 08:50:51,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1296 transitions. [2023-08-30 08:50:51,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:51,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1296 transitions. [2023-08-30 08:50:51,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.81818181818181) internal successors, (1296), 11 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,922 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,922 INFO L175 Difference]: Start difference. First operand has 130 places, 100 transitions, 1533 flow. Second operand 11 states and 1296 transitions. [2023-08-30 08:50:51,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 104 transitions, 1715 flow [2023-08-30 08:50:51,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 104 transitions, 1585 flow, removed 7 selfloop flow, removed 13 redundant places. [2023-08-30 08:50:51,939 INFO L231 Difference]: Finished difference. Result has 127 places, 95 transitions, 1484 flow [2023-08-30 08:50:51,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1343, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1484, PETRI_PLACES=127, PETRI_TRANSITIONS=95} [2023-08-30 08:50:51,939 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 98 predicate places. [2023-08-30 08:50:51,940 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 95 transitions, 1484 flow [2023-08-30 08:50:51,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 115.0) internal successors, (1035), 9 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:51,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:51,940 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:51,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-30 08:50:51,941 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:51,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:51,942 INFO L85 PathProgramCache]: Analyzing trace with hash 2103478471, now seen corresponding path program 5 times [2023-08-30 08:50:51,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:51,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560578070] [2023-08-30 08:50:51,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:51,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:52,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:52,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560578070] [2023-08-30 08:50:52,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560578070] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:52,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:52,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:52,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878831851] [2023-08-30 08:50:52,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:52,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:52,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:52,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:52,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:52,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 08:50:52,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 95 transitions, 1484 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:52,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:52,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 08:50:52,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:53,187 INFO L130 PetriNetUnfolder]: 163/415 cut-off events. [2023-08-30 08:50:53,187 INFO L131 PetriNetUnfolder]: For 3981/3981 co-relation queries the response was YES. [2023-08-30 08:50:53,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2425 conditions, 415 events. 163/415 cut-off events. For 3981/3981 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2312 event pairs, 37 based on Foata normal form. 3/418 useless extension candidates. Maximal degree in co-relation 2197. Up to 272 conditions per place. [2023-08-30 08:50:53,191 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 65 selfloop transitions, 47 changer transitions 7/119 dead transitions. [2023-08-30 08:50:53,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 119 transitions, 1835 flow [2023-08-30 08:50:53,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:50:53,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:50:53,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1531 transitions. [2023-08-30 08:50:53,193 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4582460341215205 [2023-08-30 08:50:53,193 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1531 transitions. [2023-08-30 08:50:53,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1531 transitions. [2023-08-30 08:50:53,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:53,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1531 transitions. [2023-08-30 08:50:53,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 117.76923076923077) internal successors, (1531), 13 states have internal predecessors, (1531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,200 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,200 INFO L175 Difference]: Start difference. First operand has 127 places, 95 transitions, 1484 flow. Second operand 13 states and 1531 transitions. [2023-08-30 08:50:53,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 119 transitions, 1835 flow [2023-08-30 08:50:53,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 119 transitions, 1756 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-30 08:50:53,214 INFO L231 Difference]: Finished difference. Result has 133 places, 98 transitions, 1545 flow [2023-08-30 08:50:53,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1406, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1545, PETRI_PLACES=133, PETRI_TRANSITIONS=98} [2023-08-30 08:50:53,215 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 104 predicate places. [2023-08-30 08:50:53,215 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 98 transitions, 1545 flow [2023-08-30 08:50:53,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:53,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:53,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-30 08:50:53,217 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:53,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:53,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2097868228, now seen corresponding path program 1 times [2023-08-30 08:50:53,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:53,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276301197] [2023-08-30 08:50:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:53,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:53,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:53,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:53,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276301197] [2023-08-30 08:50:53,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276301197] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:53,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:53,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:53,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218856370] [2023-08-30 08:50:53,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:53,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:53,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:53,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:53,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:53,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 08:50:53,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 98 transitions, 1545 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:53,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 08:50:53,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:53,861 INFO L130 PetriNetUnfolder]: 163/419 cut-off events. [2023-08-30 08:50:53,861 INFO L131 PetriNetUnfolder]: For 3744/3744 co-relation queries the response was YES. [2023-08-30 08:50:53,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 419 events. 163/419 cut-off events. For 3744/3744 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2362 event pairs, 29 based on Foata normal form. 2/421 useless extension candidates. Maximal degree in co-relation 2325. Up to 155 conditions per place. [2023-08-30 08:50:53,865 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 45 selfloop transitions, 70 changer transitions 4/119 dead transitions. [2023-08-30 08:50:53,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 119 transitions, 1883 flow [2023-08-30 08:50:53,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:50:53,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:50:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1246 transitions. [2023-08-30 08:50:53,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4848249027237354 [2023-08-30 08:50:53,867 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1246 transitions. [2023-08-30 08:50:53,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1246 transitions. [2023-08-30 08:50:53,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:53,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1246 transitions. [2023-08-30 08:50:53,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.6) internal successors, (1246), 10 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,874 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,874 INFO L175 Difference]: Start difference. First operand has 133 places, 98 transitions, 1545 flow. Second operand 10 states and 1246 transitions. [2023-08-30 08:50:53,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 119 transitions, 1883 flow [2023-08-30 08:50:53,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 119 transitions, 1774 flow, removed 4 selfloop flow, removed 9 redundant places. [2023-08-30 08:50:53,889 INFO L231 Difference]: Finished difference. Result has 135 places, 101 transitions, 1629 flow [2023-08-30 08:50:53,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1629, PETRI_PLACES=135, PETRI_TRANSITIONS=101} [2023-08-30 08:50:53,890 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 106 predicate places. [2023-08-30 08:50:53,891 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 101 transitions, 1629 flow [2023-08-30 08:50:53,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:53,891 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:53,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:53,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-30 08:50:53,891 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:53,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:53,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2097868229, now seen corresponding path program 2 times [2023-08-30 08:50:53,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:53,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091745879] [2023-08-30 08:50:53,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:53,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:54,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:54,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:54,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091745879] [2023-08-30 08:50:54,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091745879] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:54,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:54,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:54,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329364824] [2023-08-30 08:50:54,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:54,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:54,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:54,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:54,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:54,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 08:50:54,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 101 transitions, 1629 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:54,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:54,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 08:50:54,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:55,273 INFO L130 PetriNetUnfolder]: 163/443 cut-off events. [2023-08-30 08:50:55,273 INFO L131 PetriNetUnfolder]: For 4131/4131 co-relation queries the response was YES. [2023-08-30 08:50:55,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2734 conditions, 443 events. 163/443 cut-off events. For 4131/4131 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2651 event pairs, 53 based on Foata normal form. 6/449 useless extension candidates. Maximal degree in co-relation 2534. Up to 276 conditions per place. [2023-08-30 08:50:55,277 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 64 selfloop transitions, 47 changer transitions 24/135 dead transitions. [2023-08-30 08:50:55,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 135 transitions, 2141 flow [2023-08-30 08:50:55,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:50:55,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:50:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1876 transitions. [2023-08-30 08:50:55,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45622568093385213 [2023-08-30 08:50:55,280 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1876 transitions. [2023-08-30 08:50:55,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1876 transitions. [2023-08-30 08:50:55,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:55,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1876 transitions. [2023-08-30 08:50:55,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 117.25) internal successors, (1876), 16 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,290 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,290 INFO L175 Difference]: Start difference. First operand has 135 places, 101 transitions, 1629 flow. Second operand 16 states and 1876 transitions. [2023-08-30 08:50:55,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 135 transitions, 2141 flow [2023-08-30 08:50:55,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 135 transitions, 1967 flow, removed 16 selfloop flow, removed 10 redundant places. [2023-08-30 08:50:55,308 INFO L231 Difference]: Finished difference. Result has 140 places, 99 transitions, 1518 flow [2023-08-30 08:50:55,308 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1439, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1518, PETRI_PLACES=140, PETRI_TRANSITIONS=99} [2023-08-30 08:50:55,310 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 111 predicate places. [2023-08-30 08:50:55,310 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 99 transitions, 1518 flow [2023-08-30 08:50:55,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:55,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:55,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:55,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-30 08:50:55,311 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:55,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:55,312 INFO L85 PathProgramCache]: Analyzing trace with hash 2100797281, now seen corresponding path program 6 times [2023-08-30 08:50:55,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:55,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213979800] [2023-08-30 08:50:55,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:55,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:55,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:55,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:55,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213979800] [2023-08-30 08:50:55,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213979800] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:55,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:55,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:55,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116039067] [2023-08-30 08:50:55,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:55,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:55,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:55,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:55,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:56,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 257 [2023-08-30 08:50:56,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 99 transitions, 1518 flow. Second operand has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:56,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 257 [2023-08-30 08:50:56,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:56,514 INFO L130 PetriNetUnfolder]: 102/294 cut-off events. [2023-08-30 08:50:56,514 INFO L131 PetriNetUnfolder]: For 2680/2680 co-relation queries the response was YES. [2023-08-30 08:50:56,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1966 conditions, 294 events. 102/294 cut-off events. For 2680/2680 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1584 event pairs, 22 based on Foata normal form. 3/297 useless extension candidates. Maximal degree in co-relation 1829. Up to 167 conditions per place. [2023-08-30 08:50:56,518 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 61 selfloop transitions, 46 changer transitions 3/110 dead transitions. [2023-08-30 08:50:56,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 110 transitions, 1766 flow [2023-08-30 08:50:56,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:50:56,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:50:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1289 transitions. [2023-08-30 08:50:56,521 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45596038203042094 [2023-08-30 08:50:56,521 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1289 transitions. [2023-08-30 08:50:56,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1289 transitions. [2023-08-30 08:50:56,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:56,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1289 transitions. [2023-08-30 08:50:56,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.18181818181819) internal successors, (1289), 11 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,527 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,527 INFO L175 Difference]: Start difference. First operand has 140 places, 99 transitions, 1518 flow. Second operand 11 states and 1289 transitions. [2023-08-30 08:50:56,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 110 transitions, 1766 flow [2023-08-30 08:50:56,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 110 transitions, 1652 flow, removed 8 selfloop flow, removed 11 redundant places. [2023-08-30 08:50:56,539 INFO L231 Difference]: Finished difference. Result has 137 places, 98 transitions, 1489 flow [2023-08-30 08:50:56,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1382, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1489, PETRI_PLACES=137, PETRI_TRANSITIONS=98} [2023-08-30 08:50:56,541 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2023-08-30 08:50:56,541 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 98 transitions, 1489 flow [2023-08-30 08:50:56,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 113.9) internal successors, (1139), 10 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:56,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:56,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-30 08:50:56,542 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:56,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:56,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2103490078, now seen corresponding path program 2 times [2023-08-30 08:50:56,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:56,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173831513] [2023-08-30 08:50:56,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:56,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:56,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:56,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:56,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173831513] [2023-08-30 08:50:56,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173831513] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:56,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:56,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-30 08:50:56,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517220201] [2023-08-30 08:50:56,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:56,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 08:50:56,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:56,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 08:50:56,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-08-30 08:50:56,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 257 [2023-08-30 08:50:56,951 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 98 transitions, 1489 flow. Second operand has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:56,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:56,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 257 [2023-08-30 08:50:56,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:57,193 INFO L130 PetriNetUnfolder]: 99/285 cut-off events. [2023-08-30 08:50:57,193 INFO L131 PetriNetUnfolder]: For 2634/2634 co-relation queries the response was YES. [2023-08-30 08:50:57,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1905 conditions, 285 events. 99/285 cut-off events. For 2634/2634 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1507 event pairs, 37 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 1704. Up to 105 conditions per place. [2023-08-30 08:50:57,196 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 55 selfloop transitions, 52 changer transitions 3/110 dead transitions. [2023-08-30 08:50:57,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 110 transitions, 1745 flow [2023-08-30 08:50:57,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:50:57,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:50:57,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1241 transitions. [2023-08-30 08:50:57,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4828793774319066 [2023-08-30 08:50:57,198 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1241 transitions. [2023-08-30 08:50:57,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1241 transitions. [2023-08-30 08:50:57,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:57,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1241 transitions. [2023-08-30 08:50:57,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 124.1) internal successors, (1241), 10 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,203 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,203 INFO L175 Difference]: Start difference. First operand has 137 places, 98 transitions, 1489 flow. Second operand 10 states and 1241 transitions. [2023-08-30 08:50:57,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 110 transitions, 1745 flow [2023-08-30 08:50:57,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 110 transitions, 1631 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-30 08:50:57,215 INFO L231 Difference]: Finished difference. Result has 136 places, 95 transitions, 1449 flow [2023-08-30 08:50:57,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1366, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1449, PETRI_PLACES=136, PETRI_TRANSITIONS=95} [2023-08-30 08:50:57,216 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 107 predicate places. [2023-08-30 08:50:57,216 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 95 transitions, 1449 flow [2023-08-30 08:50:57,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.28571428571429) internal successors, (842), 7 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:57,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:57,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-30 08:50:57,217 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:57,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2097850559, now seen corresponding path program 3 times [2023-08-30 08:50:57,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:57,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902265806] [2023-08-30 08:50:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:57,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:57,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:57,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902265806] [2023-08-30 08:50:57,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902265806] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:57,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:57,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:57,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433712917] [2023-08-30 08:50:57,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:57,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:57,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:57,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:57,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:57,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:50:57,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 95 transitions, 1449 flow. Second operand has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:57,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:57,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:50:57,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:58,395 INFO L130 PetriNetUnfolder]: 88/260 cut-off events. [2023-08-30 08:50:58,396 INFO L131 PetriNetUnfolder]: For 2586/2586 co-relation queries the response was YES. [2023-08-30 08:50:58,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1774 conditions, 260 events. 88/260 cut-off events. For 2586/2586 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1327 event pairs, 24 based on Foata normal form. 2/262 useless extension candidates. Maximal degree in co-relation 1606. Up to 173 conditions per place. [2023-08-30 08:50:58,398 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 57 selfloop transitions, 42 changer transitions 6/105 dead transitions. [2023-08-30 08:50:58,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 105 transitions, 1683 flow [2023-08-30 08:50:58,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:50:58,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:50:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1600 transitions. [2023-08-30 08:50:58,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44469149527515284 [2023-08-30 08:50:58,401 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1600 transitions. [2023-08-30 08:50:58,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1600 transitions. [2023-08-30 08:50:58,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:58,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1600 transitions. [2023-08-30 08:50:58,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 114.28571428571429) internal successors, (1600), 14 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,408 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,408 INFO L175 Difference]: Start difference. First operand has 136 places, 95 transitions, 1449 flow. Second operand 14 states and 1600 transitions. [2023-08-30 08:50:58,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 105 transitions, 1683 flow [2023-08-30 08:50:58,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 105 transitions, 1576 flow, removed 3 selfloop flow, removed 7 redundant places. [2023-08-30 08:50:58,419 INFO L231 Difference]: Finished difference. Result has 137 places, 91 transitions, 1391 flow [2023-08-30 08:50:58,419 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1332, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1391, PETRI_PLACES=137, PETRI_TRANSITIONS=91} [2023-08-30 08:50:58,420 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 108 predicate places. [2023-08-30 08:50:58,420 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 91 transitions, 1391 flow [2023-08-30 08:50:58,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.9) internal successors, (1119), 10 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:58,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:58,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:58,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-30 08:50:58,421 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:58,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:58,421 INFO L85 PathProgramCache]: Analyzing trace with hash 249712732, now seen corresponding path program 1 times [2023-08-30 08:50:58,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:58,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721257872] [2023-08-30 08:50:58,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:58,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:50:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:50:58,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:50:58,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721257872] [2023-08-30 08:50:58,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721257872] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:50:58,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:50:58,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:50:58,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608744901] [2023-08-30 08:50:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:50:58,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:50:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:50:58,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:50:58,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:50:59,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:50:59,351 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 91 transitions, 1391 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,351 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:50:59,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:50:59,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:50:59,739 INFO L130 PetriNetUnfolder]: 96/312 cut-off events. [2023-08-30 08:50:59,740 INFO L131 PetriNetUnfolder]: For 3523/3523 co-relation queries the response was YES. [2023-08-30 08:50:59,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2082 conditions, 312 events. 96/312 cut-off events. For 3523/3523 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1833 event pairs, 13 based on Foata normal form. 4/316 useless extension candidates. Maximal degree in co-relation 1755. Up to 105 conditions per place. [2023-08-30 08:50:59,743 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 112 selfloop transitions, 35 changer transitions 0/147 dead transitions. [2023-08-30 08:50:59,743 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 147 transitions, 2526 flow [2023-08-30 08:50:59,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:50:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:50:59,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1376 transitions. [2023-08-30 08:50:59,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4461738002594034 [2023-08-30 08:50:59,746 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1376 transitions. [2023-08-30 08:50:59,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1376 transitions. [2023-08-30 08:50:59,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:50:59,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1376 transitions. [2023-08-30 08:50:59,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.66666666666667) internal successors, (1376), 12 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,752 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,752 INFO L175 Difference]: Start difference. First operand has 137 places, 91 transitions, 1391 flow. Second operand 12 states and 1376 transitions. [2023-08-30 08:50:59,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 147 transitions, 2526 flow [2023-08-30 08:50:59,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 147 transitions, 2328 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-08-30 08:50:59,773 INFO L231 Difference]: Finished difference. Result has 132 places, 110 transitions, 1727 flow [2023-08-30 08:50:59,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1255, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1727, PETRI_PLACES=132, PETRI_TRANSITIONS=110} [2023-08-30 08:50:59,774 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 103 predicate places. [2023-08-30 08:50:59,774 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 110 transitions, 1727 flow [2023-08-30 08:50:59,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:50:59,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:50:59,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:50:59,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-08-30 08:50:59,775 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:50:59,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:50:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash 374437232, now seen corresponding path program 2 times [2023-08-30 08:50:59,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:50:59,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666373874] [2023-08-30 08:50:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:50:59,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:50:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:00,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:00,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:00,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666373874] [2023-08-30 08:51:00,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666373874] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:00,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:00,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:00,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156542389] [2023-08-30 08:51:00,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:00,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:00,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:00,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:00,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:00,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 257 [2023-08-30 08:51:00,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 110 transitions, 1727 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:00,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:00,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 257 [2023-08-30 08:51:00,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:01,459 INFO L130 PetriNetUnfolder]: 95/369 cut-off events. [2023-08-30 08:51:01,460 INFO L131 PetriNetUnfolder]: For 4570/4570 co-relation queries the response was YES. [2023-08-30 08:51:01,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2570 conditions, 369 events. 95/369 cut-off events. For 4570/4570 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2485 event pairs, 19 based on Foata normal form. 18/387 useless extension candidates. Maximal degree in co-relation 2251. Up to 120 conditions per place. [2023-08-30 08:51:01,463 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 61 selfloop transitions, 90 changer transitions 0/151 dead transitions. [2023-08-30 08:51:01,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 151 transitions, 2499 flow [2023-08-30 08:51:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-08-30 08:51:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-08-30 08:51:01,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1520 transitions. [2023-08-30 08:51:01,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4224569205113952 [2023-08-30 08:51:01,466 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1520 transitions. [2023-08-30 08:51:01,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1520 transitions. [2023-08-30 08:51:01,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:01,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1520 transitions. [2023-08-30 08:51:01,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 108.57142857142857) internal successors, (1520), 14 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:01,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:01,473 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 257.0) internal successors, (3855), 15 states have internal predecessors, (3855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:01,473 INFO L175 Difference]: Start difference. First operand has 132 places, 110 transitions, 1727 flow. Second operand 14 states and 1520 transitions. [2023-08-30 08:51:01,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 151 transitions, 2499 flow [2023-08-30 08:51:01,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 151 transitions, 2466 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-30 08:51:01,488 INFO L231 Difference]: Finished difference. Result has 146 places, 132 transitions, 2386 flow [2023-08-30 08:51:01,488 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1697, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2386, PETRI_PLACES=146, PETRI_TRANSITIONS=132} [2023-08-30 08:51:01,489 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 117 predicate places. [2023-08-30 08:51:01,489 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 132 transitions, 2386 flow [2023-08-30 08:51:01,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:01,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:01,489 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:01,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-30 08:51:01,490 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:01,490 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:01,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1174441809, now seen corresponding path program 1 times [2023-08-30 08:51:01,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:01,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720070314] [2023-08-30 08:51:01,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:01,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:02,109 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 08:51:02,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:02,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720070314] [2023-08-30 08:51:02,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720070314] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:02,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:02,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:02,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458435814] [2023-08-30 08:51:02,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:02,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:02,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:02,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:02,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:02,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-08-30 08:51:02,688 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 132 transitions, 2386 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:02,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:02,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-08-30 08:51:02,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:03,000 INFO L130 PetriNetUnfolder]: 94/370 cut-off events. [2023-08-30 08:51:03,000 INFO L131 PetriNetUnfolder]: For 5804/5804 co-relation queries the response was YES. [2023-08-30 08:51:03,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2892 conditions, 370 events. 94/370 cut-off events. For 5804/5804 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2493 event pairs, 44 based on Foata normal form. 2/372 useless extension candidates. Maximal degree in co-relation 2547. Up to 252 conditions per place. [2023-08-30 08:51:03,004 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 128 selfloop transitions, 28 changer transitions 4/160 dead transitions. [2023-08-30 08:51:03,004 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 160 transitions, 3032 flow [2023-08-30 08:51:03,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:03,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:03,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1425 transitions. [2023-08-30 08:51:03,009 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42651900628554323 [2023-08-30 08:51:03,010 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1425 transitions. [2023-08-30 08:51:03,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1425 transitions. [2023-08-30 08:51:03,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:03,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1425 transitions. [2023-08-30 08:51:03,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 109.61538461538461) internal successors, (1425), 13 states have internal predecessors, (1425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,018 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,018 INFO L175 Difference]: Start difference. First operand has 146 places, 132 transitions, 2386 flow. Second operand 13 states and 1425 transitions. [2023-08-30 08:51:03,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 160 transitions, 3032 flow [2023-08-30 08:51:03,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 160 transitions, 2947 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:03,038 INFO L231 Difference]: Finished difference. Result has 157 places, 139 transitions, 2538 flow [2023-08-30 08:51:03,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2308, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2538, PETRI_PLACES=157, PETRI_TRANSITIONS=139} [2023-08-30 08:51:03,043 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 128 predicate places. [2023-08-30 08:51:03,044 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 139 transitions, 2538 flow [2023-08-30 08:51:03,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:03,044 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:03,044 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:03,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-08-30 08:51:03,045 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:03,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:03,045 INFO L85 PathProgramCache]: Analyzing trace with hash -534982208, now seen corresponding path program 3 times [2023-08-30 08:51:03,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:03,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762543512] [2023-08-30 08:51:03,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:03,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:03,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:03,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:03,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762543512] [2023-08-30 08:51:03,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762543512] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:03,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:03,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:03,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755815216] [2023-08-30 08:51:03,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:03,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:03,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:03,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:03,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:04,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 257 [2023-08-30 08:51:04,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 139 transitions, 2538 flow. Second operand has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:04,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 257 [2023-08-30 08:51:04,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:04,629 INFO L130 PetriNetUnfolder]: 94/372 cut-off events. [2023-08-30 08:51:04,630 INFO L131 PetriNetUnfolder]: For 6099/6099 co-relation queries the response was YES. [2023-08-30 08:51:04,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2988 conditions, 372 events. 94/372 cut-off events. For 6099/6099 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2500 event pairs, 32 based on Foata normal form. 2/374 useless extension candidates. Maximal degree in co-relation 2823. Up to 231 conditions per place. [2023-08-30 08:51:04,638 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 123 selfloop transitions, 36 changer transitions 0/159 dead transitions. [2023-08-30 08:51:04,638 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 159 transitions, 3070 flow [2023-08-30 08:51:04,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:04,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:04,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1396 transitions. [2023-08-30 08:51:04,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41783897036815326 [2023-08-30 08:51:04,641 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1396 transitions. [2023-08-30 08:51:04,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1396 transitions. [2023-08-30 08:51:04,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:04,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1396 transitions. [2023-08-30 08:51:04,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 107.38461538461539) internal successors, (1396), 13 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,647 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,647 INFO L175 Difference]: Start difference. First operand has 157 places, 139 transitions, 2538 flow. Second operand 13 states and 1396 transitions. [2023-08-30 08:51:04,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 159 transitions, 3070 flow [2023-08-30 08:51:04,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 159 transitions, 3048 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:04,673 INFO L231 Difference]: Finished difference. Result has 164 places, 147 transitions, 2753 flow [2023-08-30 08:51:04,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2518, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2753, PETRI_PLACES=164, PETRI_TRANSITIONS=147} [2023-08-30 08:51:04,676 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 135 predicate places. [2023-08-30 08:51:04,676 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 147 transitions, 2753 flow [2023-08-30 08:51:04,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 105.0909090909091) internal successors, (1156), 11 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:04,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:04,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:04,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-08-30 08:51:04,677 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:04,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:04,677 INFO L85 PathProgramCache]: Analyzing trace with hash -646545344, now seen corresponding path program 4 times [2023-08-30 08:51:04,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:04,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794299785] [2023-08-30 08:51:04,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:04,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:05,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:05,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794299785] [2023-08-30 08:51:05,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794299785] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:05,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:05,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:05,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279209430] [2023-08-30 08:51:05,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:05,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:05,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:05,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:05,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:05,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:51:05,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 147 transitions, 2753 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,550 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:05,550 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:51:05,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:05,884 INFO L130 PetriNetUnfolder]: 96/401 cut-off events. [2023-08-30 08:51:05,884 INFO L131 PetriNetUnfolder]: For 6808/6808 co-relation queries the response was YES. [2023-08-30 08:51:05,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3264 conditions, 401 events. 96/401 cut-off events. For 6808/6808 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2868 event pairs, 11 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 3127. Up to 148 conditions per place. [2023-08-30 08:51:05,887 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 133 selfloop transitions, 60 changer transitions 1/194 dead transitions. [2023-08-30 08:51:05,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 194 transitions, 3778 flow [2023-08-30 08:51:05,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:51:05,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:51:05,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1259 transitions. [2023-08-30 08:51:05,889 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44534842589317297 [2023-08-30 08:51:05,890 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1259 transitions. [2023-08-30 08:51:05,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1259 transitions. [2023-08-30 08:51:05,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:05,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1259 transitions. [2023-08-30 08:51:05,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 114.45454545454545) internal successors, (1259), 11 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,895 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,895 INFO L175 Difference]: Start difference. First operand has 164 places, 147 transitions, 2753 flow. Second operand 11 states and 1259 transitions. [2023-08-30 08:51:05,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 194 transitions, 3778 flow [2023-08-30 08:51:05,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 194 transitions, 3684 flow, removed 4 selfloop flow, removed 7 redundant places. [2023-08-30 08:51:05,923 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 3246 flow [2023-08-30 08:51:05,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2666, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3246, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2023-08-30 08:51:05,924 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 141 predicate places. [2023-08-30 08:51:05,924 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 3246 flow [2023-08-30 08:51:05,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:05,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:05,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:05,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-08-30 08:51:05,925 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:05,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:05,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1409270079, now seen corresponding path program 2 times [2023-08-30 08:51:05,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:05,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584852461] [2023-08-30 08:51:05,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:05,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:06,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:06,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:06,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584852461] [2023-08-30 08:51:06,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584852461] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:06,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:06,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:06,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445496510] [2023-08-30 08:51:06,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:06,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:06,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:06,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:06,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:07,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 08:51:07,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 3246 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:07,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 08:51:07,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:07,569 INFO L130 PetriNetUnfolder]: 95/397 cut-off events. [2023-08-30 08:51:07,569 INFO L131 PetriNetUnfolder]: For 7664/7664 co-relation queries the response was YES. [2023-08-30 08:51:07,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3412 conditions, 397 events. 95/397 cut-off events. For 7664/7664 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2821 event pairs, 36 based on Foata normal form. 2/399 useless extension candidates. Maximal degree in co-relation 3272. Up to 271 conditions per place. [2023-08-30 08:51:07,572 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 92 selfloop transitions, 77 changer transitions 13/182 dead transitions. [2023-08-30 08:51:07,572 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 182 transitions, 3742 flow [2023-08-30 08:51:07,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-30 08:51:07,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-30 08:51:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1589 transitions. [2023-08-30 08:51:07,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4121919584954604 [2023-08-30 08:51:07,575 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1589 transitions. [2023-08-30 08:51:07,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1589 transitions. [2023-08-30 08:51:07,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:07,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1589 transitions. [2023-08-30 08:51:07,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 105.93333333333334) internal successors, (1589), 15 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 257.0) internal successors, (4112), 16 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,581 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 257.0) internal successors, (4112), 16 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,581 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 3246 flow. Second operand 15 states and 1589 transitions. [2023-08-30 08:51:07,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 182 transitions, 3742 flow [2023-08-30 08:51:07,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 182 transitions, 3703 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-08-30 08:51:07,611 INFO L231 Difference]: Finished difference. Result has 181 places, 162 transitions, 3351 flow [2023-08-30 08:51:07,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3198, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3351, PETRI_PLACES=181, PETRI_TRANSITIONS=162} [2023-08-30 08:51:07,612 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 152 predicate places. [2023-08-30 08:51:07,612 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 162 transitions, 3351 flow [2023-08-30 08:51:07,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:07,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:07,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:07,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-08-30 08:51:07,613 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:07,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:07,613 INFO L85 PathProgramCache]: Analyzing trace with hash 369223332, now seen corresponding path program 5 times [2023-08-30 08:51:07,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:07,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734795665] [2023-08-30 08:51:07,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:07,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:07,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:07,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:07,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734795665] [2023-08-30 08:51:07,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734795665] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:07,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:07,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:07,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604625643] [2023-08-30 08:51:07,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:07,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:07,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:07,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:07,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:08,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:51:08,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 162 transitions, 3351 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:08,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:08,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:51:08,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:08,654 INFO L130 PetriNetUnfolder]: 89/374 cut-off events. [2023-08-30 08:51:08,655 INFO L131 PetriNetUnfolder]: For 7949/7949 co-relation queries the response was YES. [2023-08-30 08:51:08,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3356 conditions, 374 events. 89/374 cut-off events. For 7949/7949 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2619 event pairs, 12 based on Foata normal form. 6/380 useless extension candidates. Maximal degree in co-relation 3250. Up to 108 conditions per place. [2023-08-30 08:51:08,658 INFO L137 encePairwiseOnDemand]: 248/257 looper letters, 118 selfloop transitions, 59 changer transitions 0/177 dead transitions. [2023-08-30 08:51:08,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 177 transitions, 3810 flow [2023-08-30 08:51:08,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:51:08,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:51:08,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1265 transitions. [2023-08-30 08:51:08,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4474708171206226 [2023-08-30 08:51:08,662 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1265 transitions. [2023-08-30 08:51:08,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1265 transitions. [2023-08-30 08:51:08,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:08,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1265 transitions. [2023-08-30 08:51:08,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 115.0) internal successors, (1265), 11 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:08,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:08,667 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:08,667 INFO L175 Difference]: Start difference. First operand has 181 places, 162 transitions, 3351 flow. Second operand 11 states and 1265 transitions. [2023-08-30 08:51:08,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 177 transitions, 3810 flow [2023-08-30 08:51:08,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 177 transitions, 3504 flow, removed 5 selfloop flow, removed 14 redundant places. [2023-08-30 08:51:08,693 INFO L231 Difference]: Finished difference. Result has 175 places, 161 transitions, 3164 flow [2023-08-30 08:51:08,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3031, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3164, PETRI_PLACES=175, PETRI_TRANSITIONS=161} [2023-08-30 08:51:08,693 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 146 predicate places. [2023-08-30 08:51:08,694 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 161 transitions, 3164 flow [2023-08-30 08:51:08,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:08,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:08,694 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:08,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-08-30 08:51:08,694 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:08,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:08,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1163899693, now seen corresponding path program 3 times [2023-08-30 08:51:08,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:08,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226007541] [2023-08-30 08:51:08,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:08,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:09,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:09,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:09,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226007541] [2023-08-30 08:51:09,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226007541] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:09,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:09,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:09,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550123784] [2023-08-30 08:51:09,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:09,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:09,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:09,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:09,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:09,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 08:51:09,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 161 transitions, 3164 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:09,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:09,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 08:51:09,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:10,519 INFO L130 PetriNetUnfolder]: 93/397 cut-off events. [2023-08-30 08:51:10,520 INFO L131 PetriNetUnfolder]: For 7573/7573 co-relation queries the response was YES. [2023-08-30 08:51:10,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3428 conditions, 397 events. 93/397 cut-off events. For 7573/7573 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2839 event pairs, 32 based on Foata normal form. 6/403 useless extension candidates. Maximal degree in co-relation 3302. Up to 271 conditions per place. [2023-08-30 08:51:10,524 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 100 selfloop transitions, 86 changer transitions 5/191 dead transitions. [2023-08-30 08:51:10,524 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 191 transitions, 3865 flow [2023-08-30 08:51:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:51:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:51:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1697 transitions. [2023-08-30 08:51:10,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41269455252918286 [2023-08-30 08:51:10,526 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1697 transitions. [2023-08-30 08:51:10,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1697 transitions. [2023-08-30 08:51:10,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:10,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1697 transitions. [2023-08-30 08:51:10,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 106.0625) internal successors, (1697), 16 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:10,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:10,532 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:10,532 INFO L175 Difference]: Start difference. First operand has 175 places, 161 transitions, 3164 flow. Second operand 16 states and 1697 transitions. [2023-08-30 08:51:10,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 191 transitions, 3865 flow [2023-08-30 08:51:10,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 191 transitions, 3824 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:10,561 INFO L231 Difference]: Finished difference. Result has 191 places, 172 transitions, 3580 flow [2023-08-30 08:51:10,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3109, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3580, PETRI_PLACES=191, PETRI_TRANSITIONS=172} [2023-08-30 08:51:10,562 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 162 predicate places. [2023-08-30 08:51:10,562 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 172 transitions, 3580 flow [2023-08-30 08:51:10,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:10,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:10,569 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:10,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-08-30 08:51:10,569 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:10,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:10,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1180813238, now seen corresponding path program 6 times [2023-08-30 08:51:10,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:10,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492800890] [2023-08-30 08:51:10,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:10,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:10,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:10,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492800890] [2023-08-30 08:51:10,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492800890] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:10,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:10,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:10,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894636561] [2023-08-30 08:51:10,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:10,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:10,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:10,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:10,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:11,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:51:11,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 172 transitions, 3580 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:11,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:51:11,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:11,695 INFO L130 PetriNetUnfolder]: 95/404 cut-off events. [2023-08-30 08:51:11,695 INFO L131 PetriNetUnfolder]: For 8777/8777 co-relation queries the response was YES. [2023-08-30 08:51:11,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3693 conditions, 404 events. 95/404 cut-off events. For 8777/8777 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2900 event pairs, 26 based on Foata normal form. 4/408 useless extension candidates. Maximal degree in co-relation 3557. Up to 185 conditions per place. [2023-08-30 08:51:11,698 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 91 selfloop transitions, 98 changer transitions 0/189 dead transitions. [2023-08-30 08:51:11,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 189 transitions, 4160 flow [2023-08-30 08:51:11,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:11,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:11,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1485 transitions. [2023-08-30 08:51:11,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444777012870398 [2023-08-30 08:51:11,703 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1485 transitions. [2023-08-30 08:51:11,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1485 transitions. [2023-08-30 08:51:11,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:11,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1485 transitions. [2023-08-30 08:51:11,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 114.23076923076923) internal successors, (1485), 13 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,708 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,708 INFO L175 Difference]: Start difference. First operand has 191 places, 172 transitions, 3580 flow. Second operand 13 states and 1485 transitions. [2023-08-30 08:51:11,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 189 transitions, 4160 flow [2023-08-30 08:51:11,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 189 transitions, 3950 flow, removed 36 selfloop flow, removed 6 redundant places. [2023-08-30 08:51:11,739 INFO L231 Difference]: Finished difference. Result has 195 places, 179 transitions, 3837 flow [2023-08-30 08:51:11,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3837, PETRI_PLACES=195, PETRI_TRANSITIONS=179} [2023-08-30 08:51:11,739 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 166 predicate places. [2023-08-30 08:51:11,740 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 179 transitions, 3837 flow [2023-08-30 08:51:11,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:11,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:11,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:11,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-08-30 08:51:11,740 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:11,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:11,741 INFO L85 PathProgramCache]: Analyzing trace with hash 265799873, now seen corresponding path program 4 times [2023-08-30 08:51:11,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:11,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996686015] [2023-08-30 08:51:11,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:11,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:12,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:12,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:12,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996686015] [2023-08-30 08:51:12,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996686015] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:12,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:12,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:12,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533596427] [2023-08-30 08:51:12,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:12,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:12,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:12,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:12,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:12,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-08-30 08:51:12,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 179 transitions, 3837 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:12,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:12,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-08-30 08:51:12,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:13,015 INFO L130 PetriNetUnfolder]: 94/401 cut-off events. [2023-08-30 08:51:13,016 INFO L131 PetriNetUnfolder]: For 9442/9442 co-relation queries the response was YES. [2023-08-30 08:51:13,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3810 conditions, 401 events. 94/401 cut-off events. For 9442/9442 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2870 event pairs, 35 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 3661. Up to 275 conditions per place. [2023-08-30 08:51:13,023 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 156 selfloop transitions, 30 changer transitions 4/190 dead transitions. [2023-08-30 08:51:13,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 190 transitions, 4290 flow [2023-08-30 08:51:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:51:13,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:51:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1314 transitions. [2023-08-30 08:51:13,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4260700389105058 [2023-08-30 08:51:13,027 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1314 transitions. [2023-08-30 08:51:13,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1314 transitions. [2023-08-30 08:51:13,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:13,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1314 transitions. [2023-08-30 08:51:13,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 109.5) internal successors, (1314), 12 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,031 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,031 INFO L175 Difference]: Start difference. First operand has 195 places, 179 transitions, 3837 flow. Second operand 12 states and 1314 transitions. [2023-08-30 08:51:13,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 190 transitions, 4290 flow [2023-08-30 08:51:13,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 190 transitions, 4046 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-08-30 08:51:13,081 INFO L231 Difference]: Finished difference. Result has 200 places, 180 transitions, 3627 flow [2023-08-30 08:51:13,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3580, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3627, PETRI_PLACES=200, PETRI_TRANSITIONS=180} [2023-08-30 08:51:13,082 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 171 predicate places. [2023-08-30 08:51:13,082 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 180 transitions, 3627 flow [2023-08-30 08:51:13,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:13,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:13,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:13,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-08-30 08:51:13,083 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:13,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:13,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1441454191, now seen corresponding path program 5 times [2023-08-30 08:51:13,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:13,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631898004] [2023-08-30 08:51:13,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:13,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:13,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:13,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631898004] [2023-08-30 08:51:13,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631898004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:13,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:13,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:13,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214833025] [2023-08-30 08:51:13,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:13,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:13,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:13,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:13,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:14,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 08:51:14,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 180 transitions, 3627 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:14,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:14,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 08:51:14,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:14,976 INFO L130 PetriNetUnfolder]: 98/419 cut-off events. [2023-08-30 08:51:14,976 INFO L131 PetriNetUnfolder]: For 8663/8663 co-relation queries the response was YES. [2023-08-30 08:51:14,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3857 conditions, 419 events. 98/419 cut-off events. For 8663/8663 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3062 event pairs, 36 based on Foata normal form. 4/423 useless extension candidates. Maximal degree in co-relation 3707. Up to 271 conditions per place. [2023-08-30 08:51:14,979 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 109 selfloop transitions, 99 changer transitions 0/208 dead transitions. [2023-08-30 08:51:14,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 208 transitions, 4361 flow [2023-08-30 08:51:14,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-30 08:51:14,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-30 08:51:14,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2270 transitions. [2023-08-30 08:51:14,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4206040392810821 [2023-08-30 08:51:14,983 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2270 transitions. [2023-08-30 08:51:14,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2270 transitions. [2023-08-30 08:51:14,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:14,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2270 transitions. [2023-08-30 08:51:14,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 108.0952380952381) internal successors, (2270), 21 states have internal predecessors, (2270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:14,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:14,989 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:14,990 INFO L175 Difference]: Start difference. First operand has 200 places, 180 transitions, 3627 flow. Second operand 21 states and 2270 transitions. [2023-08-30 08:51:14,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 208 transitions, 4361 flow [2023-08-30 08:51:15,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 208 transitions, 4328 flow, removed 7 selfloop flow, removed 7 redundant places. [2023-08-30 08:51:15,029 INFO L231 Difference]: Finished difference. Result has 218 places, 194 transitions, 4099 flow [2023-08-30 08:51:15,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3594, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4099, PETRI_PLACES=218, PETRI_TRANSITIONS=194} [2023-08-30 08:51:15,029 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 189 predicate places. [2023-08-30 08:51:15,030 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 194 transitions, 4099 flow [2023-08-30 08:51:15,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:15,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:15,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:15,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-08-30 08:51:15,030 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:15,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:15,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1277865269, now seen corresponding path program 6 times [2023-08-30 08:51:15,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:15,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308448926] [2023-08-30 08:51:15,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:15,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:15,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:15,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308448926] [2023-08-30 08:51:15,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308448926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:15,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:15,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:15,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300665179] [2023-08-30 08:51:15,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:15,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:15,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:15,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:15,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:16,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 08:51:16,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 194 transitions, 4099 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:16,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 08:51:16,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:16,817 INFO L130 PetriNetUnfolder]: 89/392 cut-off events. [2023-08-30 08:51:16,817 INFO L131 PetriNetUnfolder]: For 9492/9492 co-relation queries the response was YES. [2023-08-30 08:51:16,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3712 conditions, 392 events. 89/392 cut-off events. For 9492/9492 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2831 event pairs, 16 based on Foata normal form. 18/410 useless extension candidates. Maximal degree in co-relation 3538. Up to 137 conditions per place. [2023-08-30 08:51:16,819 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 71 selfloop transitions, 97 changer transitions 37/205 dead transitions. [2023-08-30 08:51:16,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 205 transitions, 4552 flow [2023-08-30 08:51:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:51:16,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:51:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1913 transitions. [2023-08-30 08:51:16,823 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4135322092520536 [2023-08-30 08:51:16,823 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1913 transitions. [2023-08-30 08:51:16,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1913 transitions. [2023-08-30 08:51:16,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:16,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1913 transitions. [2023-08-30 08:51:16,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 106.27777777777777) internal successors, (1913), 18 states have internal predecessors, (1913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,829 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,830 INFO L175 Difference]: Start difference. First operand has 218 places, 194 transitions, 4099 flow. Second operand 18 states and 1913 transitions. [2023-08-30 08:51:16,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 205 transitions, 4552 flow [2023-08-30 08:51:16,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 205 transitions, 4384 flow, removed 19 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:16,870 INFO L231 Difference]: Finished difference. Result has 229 places, 157 transitions, 3311 flow [2023-08-30 08:51:16,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3786, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3311, PETRI_PLACES=229, PETRI_TRANSITIONS=157} [2023-08-30 08:51:16,871 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 200 predicate places. [2023-08-30 08:51:16,871 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 157 transitions, 3311 flow [2023-08-30 08:51:16,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:16,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:16,871 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:16,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-08-30 08:51:16,872 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:16,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:16,872 INFO L85 PathProgramCache]: Analyzing trace with hash -966788550, now seen corresponding path program 7 times [2023-08-30 08:51:16,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:16,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646568878] [2023-08-30 08:51:16,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:16,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:17,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:17,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646568878] [2023-08-30 08:51:17,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646568878] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:17,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:17,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:17,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508608016] [2023-08-30 08:51:17,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:17,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:17,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:17,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:17,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-08-30 08:51:17,940 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 157 transitions, 3311 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:17,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:17,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-08-30 08:51:17,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:18,300 INFO L130 PetriNetUnfolder]: 78/319 cut-off events. [2023-08-30 08:51:18,300 INFO L131 PetriNetUnfolder]: For 7465/7465 co-relation queries the response was YES. [2023-08-30 08:51:18,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3116 conditions, 319 events. 78/319 cut-off events. For 7465/7465 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2055 event pairs, 16 based on Foata normal form. 2/321 useless extension candidates. Maximal degree in co-relation 2973. Up to 111 conditions per place. [2023-08-30 08:51:18,302 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 90 selfloop transitions, 66 changer transitions 7/163 dead transitions. [2023-08-30 08:51:18,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 163 transitions, 3639 flow [2023-08-30 08:51:18,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:51:18,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:51:18,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1096 transitions. [2023-08-30 08:51:18,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4264591439688716 [2023-08-30 08:51:18,303 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1096 transitions. [2023-08-30 08:51:18,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1096 transitions. [2023-08-30 08:51:18,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:18,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1096 transitions. [2023-08-30 08:51:18,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 109.6) internal successors, (1096), 10 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:18,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:18,306 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:18,306 INFO L175 Difference]: Start difference. First operand has 229 places, 157 transitions, 3311 flow. Second operand 10 states and 1096 transitions. [2023-08-30 08:51:18,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 163 transitions, 3639 flow [2023-08-30 08:51:18,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 163 transitions, 3342 flow, removed 23 selfloop flow, removed 22 redundant places. [2023-08-30 08:51:18,328 INFO L231 Difference]: Finished difference. Result has 208 places, 151 transitions, 3024 flow [2023-08-30 08:51:18,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2983, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3024, PETRI_PLACES=208, PETRI_TRANSITIONS=151} [2023-08-30 08:51:18,329 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 179 predicate places. [2023-08-30 08:51:18,329 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 151 transitions, 3024 flow [2023-08-30 08:51:18,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:18,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:18,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:18,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-08-30 08:51:18,330 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:18,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:18,330 INFO L85 PathProgramCache]: Analyzing trace with hash 615564081, now seen corresponding path program 7 times [2023-08-30 08:51:18,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:18,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302041329] [2023-08-30 08:51:18,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:18,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:19,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:19,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302041329] [2023-08-30 08:51:19,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302041329] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:19,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:19,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:19,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971257337] [2023-08-30 08:51:19,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:19,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:19,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:19,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:19,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:19,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 08:51:19,718 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 151 transitions, 3024 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:19,718 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:19,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 08:51:19,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:20,405 INFO L130 PetriNetUnfolder]: 84/353 cut-off events. [2023-08-30 08:51:20,405 INFO L131 PetriNetUnfolder]: For 7556/7556 co-relation queries the response was YES. [2023-08-30 08:51:20,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3345 conditions, 353 events. 84/353 cut-off events. For 7556/7556 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2399 event pairs, 26 based on Foata normal form. 2/355 useless extension candidates. Maximal degree in co-relation 3173. Up to 209 conditions per place. [2023-08-30 08:51:20,408 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 106 selfloop transitions, 69 changer transitions 6/181 dead transitions. [2023-08-30 08:51:20,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 181 transitions, 3891 flow [2023-08-30 08:51:20,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 08:51:20,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 08:51:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1843 transitions. [2023-08-30 08:51:20,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4218356603341726 [2023-08-30 08:51:20,411 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1843 transitions. [2023-08-30 08:51:20,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1843 transitions. [2023-08-30 08:51:20,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:20,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1843 transitions. [2023-08-30 08:51:20,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 108.41176470588235) internal successors, (1843), 17 states have internal predecessors, (1843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:20,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:20,419 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:20,419 INFO L175 Difference]: Start difference. First operand has 208 places, 151 transitions, 3024 flow. Second operand 17 states and 1843 transitions. [2023-08-30 08:51:20,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 181 transitions, 3891 flow [2023-08-30 08:51:20,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 181 transitions, 3691 flow, removed 10 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:20,450 INFO L231 Difference]: Finished difference. Result has 217 places, 159 transitions, 3196 flow [2023-08-30 08:51:20,451 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2860, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3196, PETRI_PLACES=217, PETRI_TRANSITIONS=159} [2023-08-30 08:51:20,451 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 188 predicate places. [2023-08-30 08:51:20,451 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 159 transitions, 3196 flow [2023-08-30 08:51:20,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:20,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:20,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:20,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-08-30 08:51:20,452 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:20,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:20,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1441514097, now seen corresponding path program 8 times [2023-08-30 08:51:20,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:20,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161192711] [2023-08-30 08:51:20,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:20,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:21,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:21,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:21,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161192711] [2023-08-30 08:51:21,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161192711] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:21,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:21,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:21,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384444292] [2023-08-30 08:51:21,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:21,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:21,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:21,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:21,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:21,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 08:51:21,753 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 159 transitions, 3196 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:21,753 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:21,753 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 08:51:21,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:22,198 INFO L130 PetriNetUnfolder]: 80/337 cut-off events. [2023-08-30 08:51:22,198 INFO L131 PetriNetUnfolder]: For 7016/7016 co-relation queries the response was YES. [2023-08-30 08:51:22,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3143 conditions, 337 events. 80/337 cut-off events. For 7016/7016 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2250 event pairs, 24 based on Foata normal form. 6/343 useless extension candidates. Maximal degree in co-relation 3021. Up to 240 conditions per place. [2023-08-30 08:51:22,200 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 94 selfloop transitions, 52 changer transitions 22/168 dead transitions. [2023-08-30 08:51:22,201 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 168 transitions, 3601 flow [2023-08-30 08:51:22,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:22,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:22,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1408 transitions. [2023-08-30 08:51:22,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42143070936845256 [2023-08-30 08:51:22,207 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1408 transitions. [2023-08-30 08:51:22,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1408 transitions. [2023-08-30 08:51:22,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:22,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1408 transitions. [2023-08-30 08:51:22,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 108.3076923076923) internal successors, (1408), 13 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,212 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,212 INFO L175 Difference]: Start difference. First operand has 217 places, 159 transitions, 3196 flow. Second operand 13 states and 1408 transitions. [2023-08-30 08:51:22,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 168 transitions, 3601 flow [2023-08-30 08:51:22,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 168 transitions, 3450 flow, removed 11 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:22,241 INFO L231 Difference]: Finished difference. Result has 222 places, 145 transitions, 2818 flow [2023-08-30 08:51:22,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=3049, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2818, PETRI_PLACES=222, PETRI_TRANSITIONS=145} [2023-08-30 08:51:22,242 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 193 predicate places. [2023-08-30 08:51:22,242 INFO L495 AbstractCegarLoop]: Abstraction has has 222 places, 145 transitions, 2818 flow [2023-08-30 08:51:22,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:22,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:22,243 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:22,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-08-30 08:51:22,243 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:22,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:22,244 INFO L85 PathProgramCache]: Analyzing trace with hash -178846569, now seen corresponding path program 9 times [2023-08-30 08:51:22,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:22,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993512936] [2023-08-30 08:51:22,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:22,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:22,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:22,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:22,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993512936] [2023-08-30 08:51:22,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993512936] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:22,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:22,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:22,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769480320] [2023-08-30 08:51:22,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:22,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:22,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:22,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:22,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:23,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 08:51:23,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 145 transitions, 2818 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:23,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:23,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 08:51:23,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:24,138 INFO L130 PetriNetUnfolder]: 72/301 cut-off events. [2023-08-30 08:51:24,138 INFO L131 PetriNetUnfolder]: For 5651/5651 co-relation queries the response was YES. [2023-08-30 08:51:24,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 301 events. 72/301 cut-off events. For 5651/5651 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1926 event pairs, 22 based on Foata normal form. 4/305 useless extension candidates. Maximal degree in co-relation 2760. Up to 195 conditions per place. [2023-08-30 08:51:24,141 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 79 selfloop transitions, 66 changer transitions 5/150 dead transitions. [2023-08-30 08:51:24,141 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 150 transitions, 3130 flow [2023-08-30 08:51:24,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-08-30 08:51:24,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-08-30 08:51:24,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2260 transitions. [2023-08-30 08:51:24,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41875115805076896 [2023-08-30 08:51:24,145 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2260 transitions. [2023-08-30 08:51:24,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2260 transitions. [2023-08-30 08:51:24,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:24,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2260 transitions. [2023-08-30 08:51:24,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 107.61904761904762) internal successors, (2260), 21 states have internal predecessors, (2260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:24,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:24,149 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 257.0) internal successors, (5654), 22 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:24,150 INFO L175 Difference]: Start difference. First operand has 222 places, 145 transitions, 2818 flow. Second operand 21 states and 2260 transitions. [2023-08-30 08:51:24,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 150 transitions, 3130 flow [2023-08-30 08:51:24,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 150 transitions, 3013 flow, removed 6 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:24,168 INFO L231 Difference]: Finished difference. Result has 227 places, 140 transitions, 2726 flow [2023-08-30 08:51:24,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2701, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=2726, PETRI_PLACES=227, PETRI_TRANSITIONS=140} [2023-08-30 08:51:24,169 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 198 predicate places. [2023-08-30 08:51:24,169 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 140 transitions, 2726 flow [2023-08-30 08:51:24,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:24,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:24,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:24,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-08-30 08:51:24,170 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:24,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:24,170 INFO L85 PathProgramCache]: Analyzing trace with hash 356383232, now seen corresponding path program 8 times [2023-08-30 08:51:24,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:24,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559114347] [2023-08-30 08:51:24,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:24,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:24,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:24,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559114347] [2023-08-30 08:51:24,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559114347] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:24,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:24,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:24,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131850841] [2023-08-30 08:51:24,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:24,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:24,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:24,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:24,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:25,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:51:25,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 140 transitions, 2726 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:25,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:51:25,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:25,412 INFO L130 PetriNetUnfolder]: 67/288 cut-off events. [2023-08-30 08:51:25,413 INFO L131 PetriNetUnfolder]: For 5238/5238 co-relation queries the response was YES. [2023-08-30 08:51:25,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2711 conditions, 288 events. 67/288 cut-off events. For 5238/5238 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1823 event pairs, 15 based on Foata normal form. 6/294 useless extension candidates. Maximal degree in co-relation 2548. Up to 120 conditions per place. [2023-08-30 08:51:25,415 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 104 selfloop transitions, 42 changer transitions 10/156 dead transitions. [2023-08-30 08:51:25,415 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 156 transitions, 3175 flow [2023-08-30 08:51:25,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-30 08:51:25,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-30 08:51:25,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1375 transitions. [2023-08-30 08:51:25,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4458495460440986 [2023-08-30 08:51:25,423 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1375 transitions. [2023-08-30 08:51:25,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1375 transitions. [2023-08-30 08:51:25,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:25,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1375 transitions. [2023-08-30 08:51:25,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 114.58333333333333) internal successors, (1375), 12 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,427 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 257.0) internal successors, (3341), 13 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,427 INFO L175 Difference]: Start difference. First operand has 227 places, 140 transitions, 2726 flow. Second operand 12 states and 1375 transitions. [2023-08-30 08:51:25,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 156 transitions, 3175 flow [2023-08-30 08:51:25,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 156 transitions, 3009 flow, removed 7 selfloop flow, removed 20 redundant places. [2023-08-30 08:51:25,451 INFO L231 Difference]: Finished difference. Result has 220 places, 136 transitions, 2664 flow [2023-08-30 08:51:25,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2535, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2664, PETRI_PLACES=220, PETRI_TRANSITIONS=136} [2023-08-30 08:51:25,452 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 191 predicate places. [2023-08-30 08:51:25,453 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 136 transitions, 2664 flow [2023-08-30 08:51:25,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:25,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:25,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:25,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-08-30 08:51:25,453 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:25,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:25,455 INFO L85 PathProgramCache]: Analyzing trace with hash -184659479, now seen corresponding path program 10 times [2023-08-30 08:51:25,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:25,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321561054] [2023-08-30 08:51:25,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:25,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:26,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:26,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321561054] [2023-08-30 08:51:26,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321561054] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:26,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:26,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:26,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016882502] [2023-08-30 08:51:26,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:26,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:26,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:26,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:26,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:26,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 08:51:26,974 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 136 transitions, 2664 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:26,974 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:26,974 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 08:51:26,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:27,532 INFO L130 PetriNetUnfolder]: 60/260 cut-off events. [2023-08-30 08:51:27,532 INFO L131 PetriNetUnfolder]: For 5094/5094 co-relation queries the response was YES. [2023-08-30 08:51:27,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 260 events. 60/260 cut-off events. For 5094/5094 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1599 event pairs, 17 based on Foata normal form. 6/266 useless extension candidates. Maximal degree in co-relation 2403. Up to 77 conditions per place. [2023-08-30 08:51:27,534 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 77 selfloop transitions, 49 changer transitions 22/148 dead transitions. [2023-08-30 08:51:27,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 148 transitions, 2957 flow [2023-08-30 08:51:27,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-08-30 08:51:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-08-30 08:51:27,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1842 transitions. [2023-08-30 08:51:27,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42160677500572213 [2023-08-30 08:51:27,536 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1842 transitions. [2023-08-30 08:51:27,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1842 transitions. [2023-08-30 08:51:27,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:27,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1842 transitions. [2023-08-30 08:51:27,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 108.3529411764706) internal successors, (1842), 17 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:27,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:27,541 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 257.0) internal successors, (4626), 18 states have internal predecessors, (4626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:27,541 INFO L175 Difference]: Start difference. First operand has 220 places, 136 transitions, 2664 flow. Second operand 17 states and 1842 transitions. [2023-08-30 08:51:27,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 148 transitions, 2957 flow [2023-08-30 08:51:27,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 148 transitions, 2833 flow, removed 17 selfloop flow, removed 11 redundant places. [2023-08-30 08:51:27,563 INFO L231 Difference]: Finished difference. Result has 216 places, 115 transitions, 2131 flow [2023-08-30 08:51:27,563 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=2459, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2131, PETRI_PLACES=216, PETRI_TRANSITIONS=115} [2023-08-30 08:51:27,564 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 187 predicate places. [2023-08-30 08:51:27,564 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 115 transitions, 2131 flow [2023-08-30 08:51:27,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:27,564 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:27,565 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:27,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-08-30 08:51:27,565 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:27,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:27,565 INFO L85 PathProgramCache]: Analyzing trace with hash -960417119, now seen corresponding path program 11 times [2023-08-30 08:51:27,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:27,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018987692] [2023-08-30 08:51:27,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:27,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:28,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:28,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:28,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018987692] [2023-08-30 08:51:28,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018987692] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:28,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:28,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:28,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183542330] [2023-08-30 08:51:28,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:28,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:28,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:28,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:28,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:28,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 08:51:28,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 115 transitions, 2131 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:28,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:28,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 08:51:28,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:29,594 INFO L130 PetriNetUnfolder]: 49/218 cut-off events. [2023-08-30 08:51:29,594 INFO L131 PetriNetUnfolder]: For 3598/3598 co-relation queries the response was YES. [2023-08-30 08:51:29,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2039 conditions, 218 events. 49/218 cut-off events. For 3598/3598 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1272 event pairs, 13 based on Foata normal form. 6/224 useless extension candidates. Maximal degree in co-relation 1968. Up to 53 conditions per place. [2023-08-30 08:51:29,599 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 57 selfloop transitions, 56 changer transitions 20/133 dead transitions. [2023-08-30 08:51:29,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 133 transitions, 2466 flow [2023-08-30 08:51:29,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-08-30 08:51:29,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2023-08-30 08:51:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3017 transitions. [2023-08-30 08:51:29,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41926070038910507 [2023-08-30 08:51:29,605 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3017 transitions. [2023-08-30 08:51:29,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3017 transitions. [2023-08-30 08:51:29,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:29,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3017 transitions. [2023-08-30 08:51:29,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 107.75) internal successors, (3017), 28 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 257.0) internal successors, (7453), 29 states have internal predecessors, (7453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,623 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 257.0) internal successors, (7453), 29 states have internal predecessors, (7453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,623 INFO L175 Difference]: Start difference. First operand has 216 places, 115 transitions, 2131 flow. Second operand 28 states and 3017 transitions. [2023-08-30 08:51:29,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 133 transitions, 2466 flow [2023-08-30 08:51:29,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 133 transitions, 2235 flow, removed 19 selfloop flow, removed 22 redundant places. [2023-08-30 08:51:29,640 INFO L231 Difference]: Finished difference. Result has 212 places, 102 transitions, 1753 flow [2023-08-30 08:51:29,640 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1829, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1753, PETRI_PLACES=212, PETRI_TRANSITIONS=102} [2023-08-30 08:51:29,640 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 183 predicate places. [2023-08-30 08:51:29,640 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 102 transitions, 1753 flow [2023-08-30 08:51:29,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:29,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:29,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:29,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-08-30 08:51:29,641 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:29,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:29,642 INFO L85 PathProgramCache]: Analyzing trace with hash 749006897, now seen corresponding path program 12 times [2023-08-30 08:51:29,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:29,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040265483] [2023-08-30 08:51:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:29,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:30,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:30,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:30,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040265483] [2023-08-30 08:51:30,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040265483] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:30,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:30,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:30,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71649791] [2023-08-30 08:51:30,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:30,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:30,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:30,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:30,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:30,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 08:51:30,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 102 transitions, 1753 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:30,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:30,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 08:51:30,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:31,593 INFO L130 PetriNetUnfolder]: 40/184 cut-off events. [2023-08-30 08:51:31,593 INFO L131 PetriNetUnfolder]: For 2191/2191 co-relation queries the response was YES. [2023-08-30 08:51:31,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1688 conditions, 184 events. 40/184 cut-off events. For 2191/2191 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1010 event pairs, 9 based on Foata normal form. 4/188 useless extension candidates. Maximal degree in co-relation 1626. Up to 50 conditions per place. [2023-08-30 08:51:31,594 INFO L137 encePairwiseOnDemand]: 245/257 looper letters, 43 selfloop transitions, 49 changer transitions 19/111 dead transitions. [2023-08-30 08:51:31,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 111 transitions, 1981 flow [2023-08-30 08:51:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-08-30 08:51:31,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-08-30 08:51:31,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2539 transitions. [2023-08-30 08:51:31,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41164072632944226 [2023-08-30 08:51:31,596 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2539 transitions. [2023-08-30 08:51:31,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2539 transitions. [2023-08-30 08:51:31,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:31,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2539 transitions. [2023-08-30 08:51:31,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 105.79166666666667) internal successors, (2539), 24 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 257.0) internal successors, (6425), 25 states have internal predecessors, (6425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,603 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 257.0) internal successors, (6425), 25 states have internal predecessors, (6425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,603 INFO L175 Difference]: Start difference. First operand has 212 places, 102 transitions, 1753 flow. Second operand 24 states and 2539 transitions. [2023-08-30 08:51:31,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 111 transitions, 1981 flow [2023-08-30 08:51:31,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 111 transitions, 1751 flow, removed 17 selfloop flow, removed 27 redundant places. [2023-08-30 08:51:31,615 INFO L231 Difference]: Finished difference. Result has 195 places, 81 transitions, 1294 flow [2023-08-30 08:51:31,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1483, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1294, PETRI_PLACES=195, PETRI_TRANSITIONS=81} [2023-08-30 08:51:31,616 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 166 predicate places. [2023-08-30 08:51:31,616 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 81 transitions, 1294 flow [2023-08-30 08:51:31,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:31,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:31,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:31,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-08-30 08:51:31,617 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:31,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:31,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1930078246, now seen corresponding path program 9 times [2023-08-30 08:51:31,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:31,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911930324] [2023-08-30 08:51:31,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:31,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:32,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:32,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:32,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911930324] [2023-08-30 08:51:32,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911930324] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:32,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:32,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:32,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635766963] [2023-08-30 08:51:32,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:32,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:32,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:32,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:32,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:32,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 257 [2023-08-30 08:51:32,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 81 transitions, 1294 flow. Second operand has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:32,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:32,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 257 [2023-08-30 08:51:32,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:32,993 INFO L130 PetriNetUnfolder]: 32/149 cut-off events. [2023-08-30 08:51:32,993 INFO L131 PetriNetUnfolder]: For 1437/1437 co-relation queries the response was YES. [2023-08-30 08:51:32,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1336 conditions, 149 events. 32/149 cut-off events. For 1437/1437 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 751 event pairs, 10 based on Foata normal form. 2/151 useless extension candidates. Maximal degree in co-relation 1304. Up to 103 conditions per place. [2023-08-30 08:51:32,994 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 51 selfloop transitions, 27 changer transitions 6/84 dead transitions. [2023-08-30 08:51:32,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 84 transitions, 1458 flow [2023-08-30 08:51:32,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-08-30 08:51:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-08-30 08:51:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1169 transitions. [2023-08-30 08:51:32,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41351255748142907 [2023-08-30 08:51:32,995 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1169 transitions. [2023-08-30 08:51:32,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1169 transitions. [2023-08-30 08:51:32,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:32,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1169 transitions. [2023-08-30 08:51:32,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 106.27272727272727) internal successors, (1169), 11 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:32,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:32,998 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 257.0) internal successors, (3084), 12 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:32,998 INFO L175 Difference]: Start difference. First operand has 195 places, 81 transitions, 1294 flow. Second operand 11 states and 1169 transitions. [2023-08-30 08:51:32,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 84 transitions, 1458 flow [2023-08-30 08:51:33,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 84 transitions, 1219 flow, removed 6 selfloop flow, removed 44 redundant places. [2023-08-30 08:51:33,003 INFO L231 Difference]: Finished difference. Result has 153 places, 77 transitions, 1043 flow [2023-08-30 08:51:33,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=1033, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1043, PETRI_PLACES=153, PETRI_TRANSITIONS=77} [2023-08-30 08:51:33,004 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 124 predicate places. [2023-08-30 08:51:33,004 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 77 transitions, 1043 flow [2023-08-30 08:51:33,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:33,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:33,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:33,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-08-30 08:51:33,004 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:33,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash 383374533, now seen corresponding path program 13 times [2023-08-30 08:51:33,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:33,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349877572] [2023-08-30 08:51:33,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:33,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:33,662 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 08:51:33,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:33,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349877572] [2023-08-30 08:51:33,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349877572] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:33,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:33,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:33,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586554155] [2023-08-30 08:51:33,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:33,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:33,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:33,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:34,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 08:51:34,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 77 transitions, 1043 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:34,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:34,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 08:51:34,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:34,944 INFO L130 PetriNetUnfolder]: 31/140 cut-off events. [2023-08-30 08:51:34,945 INFO L131 PetriNetUnfolder]: For 929/929 co-relation queries the response was YES. [2023-08-30 08:51:34,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 140 events. 31/140 cut-off events. For 929/929 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 676 event pairs, 8 based on Foata normal form. 2/142 useless extension candidates. Maximal degree in co-relation 1132. Up to 46 conditions per place. [2023-08-30 08:51:34,945 INFO L137 encePairwiseOnDemand]: 246/257 looper letters, 33 selfloop transitions, 51 changer transitions 0/84 dead transitions. [2023-08-30 08:51:34,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 84 transitions, 1228 flow [2023-08-30 08:51:34,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-08-30 08:51:34,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-08-30 08:51:34,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2366 transitions. [2023-08-30 08:51:34,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41846480367881145 [2023-08-30 08:51:34,947 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2366 transitions. [2023-08-30 08:51:34,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2366 transitions. [2023-08-30 08:51:34,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:34,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2366 transitions. [2023-08-30 08:51:34,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 107.54545454545455) internal successors, (2366), 22 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:34,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 257.0) internal successors, (5911), 23 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:34,953 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 257.0) internal successors, (5911), 23 states have internal predecessors, (5911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:34,953 INFO L175 Difference]: Start difference. First operand has 153 places, 77 transitions, 1043 flow. Second operand 22 states and 2366 transitions. [2023-08-30 08:51:34,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 84 transitions, 1228 flow [2023-08-30 08:51:34,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 84 transitions, 1155 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-08-30 08:51:34,958 INFO L231 Difference]: Finished difference. Result has 160 places, 76 transitions, 1052 flow [2023-08-30 08:51:34,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1052, PETRI_PLACES=160, PETRI_TRANSITIONS=76} [2023-08-30 08:51:34,959 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 131 predicate places. [2023-08-30 08:51:34,959 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 76 transitions, 1052 flow [2023-08-30 08:51:34,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:34,959 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:34,959 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:34,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-08-30 08:51:34,959 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:34,960 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:34,960 INFO L85 PathProgramCache]: Analyzing trace with hash 380808662, now seen corresponding path program 10 times [2023-08-30 08:51:34,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:34,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281193295] [2023-08-30 08:51:34,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:34,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:35,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:35,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:35,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281193295] [2023-08-30 08:51:35,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281193295] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:35,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:35,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-30 08:51:35,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173443402] [2023-08-30 08:51:35,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:35,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-30 08:51:35,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:35,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-30 08:51:35,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-30 08:51:35,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 257 [2023-08-30 08:51:35,950 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 76 transitions, 1052 flow. Second operand has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:35,951 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:35,951 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 257 [2023-08-30 08:51:35,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:36,879 INFO L130 PetriNetUnfolder]: 26/125 cut-off events. [2023-08-30 08:51:36,879 INFO L131 PetriNetUnfolder]: For 891/891 co-relation queries the response was YES. [2023-08-30 08:51:36,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 125 events. 26/125 cut-off events. For 891/891 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 590 event pairs, 3 based on Foata normal form. 10/135 useless extension candidates. Maximal degree in co-relation 947. Up to 33 conditions per place. [2023-08-30 08:51:36,880 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 21 selfloop transitions, 22 changer transitions 39/82 dead transitions. [2023-08-30 08:51:36,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 82 transitions, 1122 flow [2023-08-30 08:51:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-08-30 08:51:36,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-08-30 08:51:36,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1961 transitions. [2023-08-30 08:51:36,881 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42390834414180717 [2023-08-30 08:51:36,882 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1961 transitions. [2023-08-30 08:51:36,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1961 transitions. [2023-08-30 08:51:36,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:36,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1961 transitions. [2023-08-30 08:51:36,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 108.94444444444444) internal successors, (1961), 18 states have internal predecessors, (1961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,885 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 257.0) internal successors, (4883), 19 states have internal predecessors, (4883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,885 INFO L175 Difference]: Start difference. First operand has 160 places, 76 transitions, 1052 flow. Second operand 18 states and 1961 transitions. [2023-08-30 08:51:36,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 82 transitions, 1122 flow [2023-08-30 08:51:36,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 82 transitions, 988 flow, removed 3 selfloop flow, removed 22 redundant places. [2023-08-30 08:51:36,889 INFO L231 Difference]: Finished difference. Result has 149 places, 39 transitions, 440 flow [2023-08-30 08:51:36,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=440, PETRI_PLACES=149, PETRI_TRANSITIONS=39} [2023-08-30 08:51:36,889 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 120 predicate places. [2023-08-30 08:51:36,889 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 39 transitions, 440 flow [2023-08-30 08:51:36,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 107.0909090909091) internal successors, (1178), 11 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:36,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:36,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:36,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-08-30 08:51:36,890 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:36,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:36,891 INFO L85 PathProgramCache]: Analyzing trace with hash 374437233, now seen corresponding path program 14 times [2023-08-30 08:51:36,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:36,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720458771] [2023-08-30 08:51:36,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:36,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:36,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:37,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:37,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:37,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720458771] [2023-08-30 08:51:37,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720458771] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:37,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:37,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:37,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623763038] [2023-08-30 08:51:37,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:37,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:37,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:37,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:37,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:37,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 08:51:37,804 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 39 transitions, 440 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:37,805 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:37,805 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 08:51:37,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:38,218 INFO L130 PetriNetUnfolder]: 8/56 cut-off events. [2023-08-30 08:51:38,218 INFO L131 PetriNetUnfolder]: For 266/266 co-relation queries the response was YES. [2023-08-30 08:51:38,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 56 events. 8/56 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 155 event pairs, 3 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 424. Up to 17 conditions per place. [2023-08-30 08:51:38,218 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 16 selfloop transitions, 17 changer transitions 8/41 dead transitions. [2023-08-30 08:51:38,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 41 transitions, 507 flow [2023-08-30 08:51:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-08-30 08:51:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-08-30 08:51:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1715 transitions. [2023-08-30 08:51:38,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4170719844357977 [2023-08-30 08:51:38,221 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1715 transitions. [2023-08-30 08:51:38,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1715 transitions. [2023-08-30 08:51:38,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:38,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1715 transitions. [2023-08-30 08:51:38,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 107.1875) internal successors, (1715), 16 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,226 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 257.0) internal successors, (4369), 17 states have internal predecessors, (4369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,226 INFO L175 Difference]: Start difference. First operand has 149 places, 39 transitions, 440 flow. Second operand 16 states and 1715 transitions. [2023-08-30 08:51:38,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 41 transitions, 507 flow [2023-08-30 08:51:38,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 41 transitions, 396 flow, removed 1 selfloop flow, removed 29 redundant places. [2023-08-30 08:51:38,228 INFO L231 Difference]: Finished difference. Result has 107 places, 30 transitions, 312 flow [2023-08-30 08:51:38,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=312, PETRI_PLACES=107, PETRI_TRANSITIONS=30} [2023-08-30 08:51:38,229 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 78 predicate places. [2023-08-30 08:51:38,229 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 30 transitions, 312 flow [2023-08-30 08:51:38,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:38,229 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:38,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:38,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-08-30 08:51:38,230 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:38,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:38,230 INFO L85 PathProgramCache]: Analyzing trace with hash -187843776, now seen corresponding path program 11 times [2023-08-30 08:51:38,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:38,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685954414] [2023-08-30 08:51:38,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:38,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:38,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:38,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:38,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685954414] [2023-08-30 08:51:38,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685954414] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:38,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:38,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:38,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640693702] [2023-08-30 08:51:38,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:38,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:38,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:38,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:38,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:39,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 257 [2023-08-30 08:51:39,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 30 transitions, 312 flow. Second operand has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:39,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:39,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 257 [2023-08-30 08:51:39,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:39,276 INFO L130 PetriNetUnfolder]: 7/50 cut-off events. [2023-08-30 08:51:39,276 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-08-30 08:51:39,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 50 events. 7/50 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 141 event pairs, 3 based on Foata normal form. 2/52 useless extension candidates. Maximal degree in co-relation 368. Up to 16 conditions per place. [2023-08-30 08:51:39,277 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 16 selfloop transitions, 13 changer transitions 6/35 dead transitions. [2023-08-30 08:51:39,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 35 transitions, 408 flow [2023-08-30 08:51:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-30 08:51:39,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-30 08:51:39,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1092 transitions. [2023-08-30 08:51:39,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42490272373540855 [2023-08-30 08:51:39,278 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1092 transitions. [2023-08-30 08:51:39,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1092 transitions. [2023-08-30 08:51:39,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:39,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1092 transitions. [2023-08-30 08:51:39,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 109.2) internal successors, (1092), 10 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:39,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:39,280 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 257.0) internal successors, (2827), 11 states have internal predecessors, (2827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:39,280 INFO L175 Difference]: Start difference. First operand has 107 places, 30 transitions, 312 flow. Second operand 10 states and 1092 transitions. [2023-08-30 08:51:39,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 35 transitions, 408 flow [2023-08-30 08:51:39,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 35 transitions, 355 flow, removed 0 selfloop flow, removed 13 redundant places. [2023-08-30 08:51:39,282 INFO L231 Difference]: Finished difference. Result has 92 places, 28 transitions, 283 flow [2023-08-30 08:51:39,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=283, PETRI_PLACES=92, PETRI_TRANSITIONS=28} [2023-08-30 08:51:39,282 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 63 predicate places. [2023-08-30 08:51:39,282 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 28 transitions, 283 flow [2023-08-30 08:51:39,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 108.2) internal successors, (1082), 10 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:39,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:39,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:39,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2023-08-30 08:51:39,283 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:39,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:39,283 INFO L85 PathProgramCache]: Analyzing trace with hash 310857564, now seen corresponding path program 12 times [2023-08-30 08:51:39,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:39,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886513836] [2023-08-30 08:51:39,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:39,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:39,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:39,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:39,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886513836] [2023-08-30 08:51:39,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886513836] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:39,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:39,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:39,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824183238] [2023-08-30 08:51:39,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:39,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:39,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:39,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:39,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:40,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:51:40,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 28 transitions, 283 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:40,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:51:40,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:40,211 INFO L130 PetriNetUnfolder]: 6/53 cut-off events. [2023-08-30 08:51:40,211 INFO L131 PetriNetUnfolder]: For 185/185 co-relation queries the response was YES. [2023-08-30 08:51:40,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 53 events. 6/53 cut-off events. For 185/185 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 172 event pairs, 4 based on Foata normal form. 4/57 useless extension candidates. Maximal degree in co-relation 388. Up to 22 conditions per place. [2023-08-30 08:51:40,212 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 16 selfloop transitions, 15 changer transitions 3/34 dead transitions. [2023-08-30 08:51:40,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 34 transitions, 398 flow [2023-08-30 08:51:40,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:51:40,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:51:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1021 transitions. [2023-08-30 08:51:40,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4414180717682663 [2023-08-30 08:51:40,214 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1021 transitions. [2023-08-30 08:51:40,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1021 transitions. [2023-08-30 08:51:40,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:40,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1021 transitions. [2023-08-30 08:51:40,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 113.44444444444444) internal successors, (1021), 9 states have internal predecessors, (1021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,217 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,217 INFO L175 Difference]: Start difference. First operand has 92 places, 28 transitions, 283 flow. Second operand 9 states and 1021 transitions. [2023-08-30 08:51:40,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 34 transitions, 398 flow [2023-08-30 08:51:40,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 34 transitions, 364 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-30 08:51:40,221 INFO L231 Difference]: Finished difference. Result has 92 places, 28 transitions, 323 flow [2023-08-30 08:51:40,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=323, PETRI_PLACES=92, PETRI_TRANSITIONS=28} [2023-08-30 08:51:40,222 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 63 predicate places. [2023-08-30 08:51:40,222 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 28 transitions, 323 flow [2023-08-30 08:51:40,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:40,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:40,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:40,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2023-08-30 08:51:40,223 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:40,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:40,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1181674323, now seen corresponding path program 15 times [2023-08-30 08:51:40,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:40,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867822043] [2023-08-30 08:51:40,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:40,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:40,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:40,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867822043] [2023-08-30 08:51:40,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867822043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:40,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:40,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-30 08:51:40,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453071949] [2023-08-30 08:51:40,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:40,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-08-30 08:51:40,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:40,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-08-30 08:51:40,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-08-30 08:51:41,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 257 [2023-08-30 08:51:41,455 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 28 transitions, 323 flow. Second operand has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:41,455 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:41,455 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 257 [2023-08-30 08:51:41,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:41,783 INFO L130 PetriNetUnfolder]: 3/39 cut-off events. [2023-08-30 08:51:41,783 INFO L131 PetriNetUnfolder]: For 194/194 co-relation queries the response was YES. [2023-08-30 08:51:41,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 39 events. 3/39 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 94 event pairs, 2 based on Foata normal form. 6/45 useless extension candidates. Maximal degree in co-relation 276. Up to 18 conditions per place. [2023-08-30 08:51:41,784 INFO L137 encePairwiseOnDemand]: 247/257 looper letters, 12 selfloop transitions, 15 changer transitions 3/30 dead transitions. [2023-08-30 08:51:41,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 30 transitions, 353 flow [2023-08-30 08:51:41,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-30 08:51:41,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-30 08:51:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1390 transitions. [2023-08-30 08:51:41,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4160431008680036 [2023-08-30 08:51:41,787 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1390 transitions. [2023-08-30 08:51:41,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1390 transitions. [2023-08-30 08:51:41,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:41,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1390 transitions. [2023-08-30 08:51:41,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 106.92307692307692) internal successors, (1390), 13 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:41,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:41,791 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 257.0) internal successors, (3598), 14 states have internal predecessors, (3598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:41,791 INFO L175 Difference]: Start difference. First operand has 92 places, 28 transitions, 323 flow. Second operand 13 states and 1390 transitions. [2023-08-30 08:51:41,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 30 transitions, 353 flow [2023-08-30 08:51:41,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 30 transitions, 301 flow, removed 3 selfloop flow, removed 11 redundant places. [2023-08-30 08:51:41,793 INFO L231 Difference]: Finished difference. Result has 80 places, 24 transitions, 234 flow [2023-08-30 08:51:41,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=234, PETRI_PLACES=80, PETRI_TRANSITIONS=24} [2023-08-30 08:51:41,794 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 51 predicate places. [2023-08-30 08:51:41,794 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 24 transitions, 234 flow [2023-08-30 08:51:41,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:41,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 08:51:41,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 08:51:41,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2023-08-30 08:51:41,795 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-08-30 08:51:41,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 08:51:41,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1181674322, now seen corresponding path program 13 times [2023-08-30 08:51:41,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 08:51:41,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671450239] [2023-08-30 08:51:41,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 08:51:41,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 08:51:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 08:51:42,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 08:51:42,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 08:51:42,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671450239] [2023-08-30 08:51:42,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671450239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 08:51:42,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 08:51:42,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-30 08:51:42,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125433552] [2023-08-30 08:51:42,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 08:51:42,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-08-30 08:51:42,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 08:51:42,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-08-30 08:51:42,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-08-30 08:51:42,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 257 [2023-08-30 08:51:42,434 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 24 transitions, 234 flow. Second operand has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,434 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 08:51:42,434 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 257 [2023-08-30 08:51:42,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 08:51:42,595 INFO L130 PetriNetUnfolder]: 0/25 cut-off events. [2023-08-30 08:51:42,595 INFO L131 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2023-08-30 08:51:42,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 25 events. 0/25 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 6/31 useless extension candidates. Maximal degree in co-relation 0. Up to 12 conditions per place. [2023-08-30 08:51:42,595 INFO L137 encePairwiseOnDemand]: 249/257 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-08-30 08:51:42,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 21 transitions, 206 flow [2023-08-30 08:51:42,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-30 08:51:42,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-30 08:51:42,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1014 transitions. [2023-08-30 08:51:42,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4383916990920882 [2023-08-30 08:51:42,597 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1014 transitions. [2023-08-30 08:51:42,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1014 transitions. [2023-08-30 08:51:42,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 08:51:42,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1014 transitions. [2023-08-30 08:51:42,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.66666666666667) internal successors, (1014), 9 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,599 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 257.0) internal successors, (2570), 10 states have internal predecessors, (2570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,599 INFO L175 Difference]: Start difference. First operand has 80 places, 24 transitions, 234 flow. Second operand 9 states and 1014 transitions. [2023-08-30 08:51:42,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 21 transitions, 206 flow [2023-08-30 08:51:42,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 21 transitions, 142 flow, removed 3 selfloop flow, removed 16 redundant places. [2023-08-30 08:51:42,599 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-08-30 08:51:42,600 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=257, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-08-30 08:51:42,600 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 18 predicate places. [2023-08-30 08:51:42,600 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-08-30 08:51:42,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 112.2) internal successors, (1122), 10 states have internal predecessors, (1122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 08:51:42,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2023-08-30 08:51:42,609 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2023-08-30 08:51:42,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-08-30 08:51:42,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-08-30 08:51:42,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-08-30 08:51:42,610 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-08-30 08:51:42,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-08-30 08:51:42,621 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-08-30 08:51:42,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-08-30 08:51:42,622 INFO L445 BasicCegarLoop]: Path program histogram: [15, 13, 6, 4, 3, 3, 3, 2, 1, 1, 1, 1] [2023-08-30 08:51:42,626 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 08:51:42,626 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 08:51:42,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 08:51:42 BasicIcfg [2023-08-30 08:51:42,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 08:51:42,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 08:51:42,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 08:51:42,630 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 08:51:42,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 08:50:25" (3/4) ... [2023-08-30 08:51:42,633 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 08:51:42,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2023-08-30 08:51:42,642 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-08-30 08:51:42,642 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 08:51:42,642 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 08:51:42,643 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 08:51:42,668 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 08:51:42,669 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 08:51:42,669 INFO L158 Benchmark]: Toolchain (without parser) took 78387.47ms. Allocated memory was 83.9MB in the beginning and 536.9MB in the end (delta: 453.0MB). Free memory was 60.1MB in the beginning and 219.5MB in the end (delta: -159.4MB). Peak memory consumption was 294.3MB. Max. memory is 16.1GB. [2023-08-30 08:51:42,669 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 08:51:42,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 779.68ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 48.9MB in the end (delta: 11.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2023-08-30 08:51:42,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.35ms. Allocated memory is still 83.9MB. Free memory was 48.9MB in the beginning and 45.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:51:42,670 INFO L158 Benchmark]: Boogie Preprocessor took 37.33ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 43.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 08:51:42,670 INFO L158 Benchmark]: RCFGBuilder took 578.16ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 42.3MB in the end (delta: 404.0kB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-08-30 08:51:42,671 INFO L158 Benchmark]: TraceAbstraction took 76874.01ms. Allocated memory was 83.9MB in the beginning and 536.9MB in the end (delta: 453.0MB). Free memory was 41.5MB in the beginning and 222.6MB in the end (delta: -181.1MB). Peak memory consumption was 270.3MB. Max. memory is 16.1GB. [2023-08-30 08:51:42,671 INFO L158 Benchmark]: Witness Printer took 38.73ms. Allocated memory is still 536.9MB. Free memory was 222.6MB in the beginning and 219.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 08:51:42,672 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 779.68ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 48.9MB in the end (delta: 11.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.35ms. Allocated memory is still 83.9MB. Free memory was 48.9MB in the beginning and 45.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.33ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 43.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.16ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 42.3MB in the end (delta: 404.0kB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 76874.01ms. Allocated memory was 83.9MB in the beginning and 536.9MB in the end (delta: 453.0MB). Free memory was 41.5MB in the beginning and 222.6MB in the end (delta: -181.1MB). Peak memory consumption was 270.3MB. Max. memory is 16.1GB. * Witness Printer took 38.73ms. Allocated memory is still 536.9MB. Free memory was 222.6MB in the beginning and 219.5MB in the end (delta: 3.1MB). 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: 5.5s, 122 PlacesBefore, 29 PlacesAfterwards, 117 TransitionsBefore, 23 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 5449 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2466, independent: 2270, independent conditional: 0, independent unconditional: 2270, dependent: 196, dependent conditional: 0, dependent unconditional: 196, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1470, independent: 1416, independent conditional: 0, independent unconditional: 1416, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2466, independent: 854, independent conditional: 0, independent unconditional: 854, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 1470, unknown conditional: 0, unknown unconditional: 1470] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1699]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 156 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: 76.7s, OverallIterations: 53, TraceHistogramMax: 1, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.0s, AutomataDifference: 42.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12677 SdHoareTripleChecker+Valid, 26.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10243 mSDsluCounter, 10003 SdHoareTripleChecker+Invalid, 22.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9459 mSDsCounter, 1733 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48686 IncrementalHoareTripleChecker+Invalid, 50419 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1733 mSolverCounterUnsat, 544 mSDtfsCounter, 48686 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 850 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 845 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1949 ImplicationChecksByTransitivity, 14.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4099occurred in iteration=36, InterpolantAutomatonStates: 677, 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, 0.8s SatisfiabilityAnalysisTime, 26.5s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 8519 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 53 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 08:51:42,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE