/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:43,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:43,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:43,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:35:43,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:35:43,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:35:43,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:35:43,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:35:43,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:35:43,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:35:43,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:35:43,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:35:43,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:43,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:43,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:43,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:43,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:43,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:43,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:43,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:43,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:43,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:43,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:43,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:43,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:35:43,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:35:43,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:35:43,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:35:43,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:35:43,434 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:35:43,435 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:35:43,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:35:43,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:35:43,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:35:43,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:35:43,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:35:43,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:35:43,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:35:43,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:43,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:43,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:43,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:35:43,479 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:43,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:43,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:43,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:43,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:43,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:43,482 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:43,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:43,482 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:43,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:43,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:43,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:43,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:43,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:43,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:43,484 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:43,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:43,484 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:43,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:43,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:43,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:43,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:43,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:43,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:43,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:43,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:43,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:43,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:43,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:43,486 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:43,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:43,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:43,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:43,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:43,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:43,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:43,813 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:43,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-09-16 11:35:43,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a9617f9/c73e3b3f65c5411286d6087b6ddaf26e/FLAGbbc582737 [2022-09-16 11:35:44,492 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:44,493 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2022-09-16 11:35:44,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a9617f9/c73e3b3f65c5411286d6087b6ddaf26e/FLAGbbc582737 [2022-09-16 11:35:44,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11a9617f9/c73e3b3f65c5411286d6087b6ddaf26e [2022-09-16 11:35:44,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:44,852 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:44,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:44,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:44,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:44,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:44" (1/1) ... [2022-09-16 11:35:44,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9df36f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:44, skipping insertion in model container [2022-09-16 11:35:44,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:44" (1/1) ... [2022-09-16 11:35:44,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:44,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:45,527 WARN L230 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_1-container_of.i[76077,76090] [2022-09-16 11:35:45,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:45,606 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:45,664 WARN L230 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_1-container_of.i[76077,76090] [2022-09-16 11:35:45,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:45,792 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:45,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45 WrapperNode [2022-09-16 11:35:45,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:45,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:45,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:45,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:45,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,882 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-09-16 11:35:45,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:45,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:45,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:45,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:45,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:45,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:45,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:45,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:45,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (1/1) ... [2022-09-16 11:35:45,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:45,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:45,989 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) [2022-09-16 11:35:45,992 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 [2022-09-16 11:35:46,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:35:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:35:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-09-16 11:35:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-09-16 11:35:46,032 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-09-16 11:35:46,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:46,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:46,034 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:35:46,334 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:46,336 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:46,634 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:46,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:46,645 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:46,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:46 BoogieIcfgContainer [2022-09-16 11:35:46,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:46,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:46,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:46,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:46,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:44" (1/3) ... [2022-09-16 11:35:46,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4688e0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:46, skipping insertion in model container [2022-09-16 11:35:46,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:45" (2/3) ... [2022-09-16 11:35:46,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4688e0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:46, skipping insertion in model container [2022-09-16 11:35:46,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:46" (3/3) ... [2022-09-16 11:35:46,659 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-09-16 11:35:46,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:46,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-09-16 11:35:46,677 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:46,779 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 11:35:46,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 197 transitions, 410 flow [2022-09-16 11:35:46,954 INFO L130 PetriNetUnfolder]: 10/240 cut-off events. [2022-09-16 11:35:46,954 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-16 11:35:46,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 10/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 417 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-09-16 11:35:46,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 197 transitions, 410 flow [2022-09-16 11:35:46,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 163 transitions, 335 flow [2022-09-16 11:35:47,014 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:47,022 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=false, 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;@762ed74d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:47,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-09-16 11:35:47,054 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-09-16 11:35:47,054 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:47,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:47,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:47,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:35:47,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:47,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1371300828, now seen corresponding path program 1 times [2022-09-16 11:35:47,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:47,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105618336] [2022-09-16 11:35:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:47,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:48,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:48,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:48,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105618336] [2022-09-16 11:35:48,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105618336] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:48,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:48,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-09-16 11:35:48,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940490394] [2022-09-16 11:35:48,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:48,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-09-16 11:35:48,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:48,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-09-16 11:35:48,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-09-16 11:35:48,329 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 197 [2022-09-16 11:35:48,360 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 163 transitions, 335 flow. Second operand has 16 states, 16 states have (on average 134.6875) internal successors, (2155), 16 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:48,360 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:48,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 197 [2022-09-16 11:35:48,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:50,172 INFO L130 PetriNetUnfolder]: 1050/4238 cut-off events. [2022-09-16 11:35:50,173 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-09-16 11:35:50,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6041 conditions, 4238 events. 1050/4238 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 41332 event pairs, 649 based on Foata normal form. 162/3933 useless extension candidates. Maximal degree in co-relation 5899. Up to 1236 conditions per place. [2022-09-16 11:35:50,211 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 80 selfloop transitions, 25 changer transitions 4/214 dead transitions. [2022-09-16 11:35:50,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 214 transitions, 654 flow [2022-09-16 11:35:50,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:35:50,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-09-16 11:35:50,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2513 transitions. [2022-09-16 11:35:50,276 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7086858432036097 [2022-09-16 11:35:50,276 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2513 transitions. [2022-09-16 11:35:50,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2513 transitions. [2022-09-16 11:35:50,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:50,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2513 transitions. [2022-09-16 11:35:50,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.61111111111111) internal successors, (2513), 18 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:50,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 197.0) internal successors, (3743), 19 states have internal predecessors, (3743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:50,308 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 197.0) internal successors, (3743), 19 states have internal predecessors, (3743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:50,310 INFO L175 Difference]: Start difference. First operand has 166 places, 163 transitions, 335 flow. Second operand 18 states and 2513 transitions. [2022-09-16 11:35:50,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 214 transitions, 654 flow [2022-09-16 11:35:50,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 214 transitions, 648 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:50,321 INFO L231 Difference]: Finished difference. Result has 185 places, 171 transitions, 457 flow [2022-09-16 11:35:50,323 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=457, PETRI_PLACES=185, PETRI_TRANSITIONS=171} [2022-09-16 11:35:50,327 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 19 predicate places. [2022-09-16 11:35:50,328 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 171 transitions, 457 flow [2022-09-16 11:35:50,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.6875) internal successors, (2155), 16 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:50,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:50,330 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:50,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:50,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:35:50,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:50,331 INFO L85 PathProgramCache]: Analyzing trace with hash -481169189, now seen corresponding path program 1 times [2022-09-16 11:35:50,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:50,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329879476] [2022-09-16 11:35:50,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:50,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:51,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:51,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329879476] [2022-09-16 11:35:51,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329879476] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:51,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:51,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 11:35:51,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34138639] [2022-09-16 11:35:51,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:51,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 11:35:51,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:51,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 11:35:51,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:35:51,150 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-09-16 11:35:51,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 171 transitions, 457 flow. Second operand has 22 states, 22 states have (on average 95.9090909090909) internal successors, (2110), 22 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:51,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:51,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-09-16 11:35:51,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:53,592 INFO L130 PetriNetUnfolder]: 3176/6951 cut-off events. [2022-09-16 11:35:53,593 INFO L131 PetriNetUnfolder]: For 2854/2863 co-relation queries the response was YES. [2022-09-16 11:35:53,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13963 conditions, 6951 events. 3176/6951 cut-off events. For 2854/2863 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 58478 event pairs, 1367 based on Foata normal form. 168/6672 useless extension candidates. Maximal degree in co-relation 13222. Up to 3261 conditions per place. [2022-09-16 11:35:53,657 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 150 selfloop transitions, 45 changer transitions 2/276 dead transitions. [2022-09-16 11:35:53,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 276 transitions, 1135 flow [2022-09-16 11:35:53,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 11:35:53,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-09-16 11:35:53,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-09-16 11:35:53,670 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2022-09-16 11:35:53,670 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-09-16 11:35:53,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-09-16 11:35:53,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:53,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-09-16 11:35:53,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 103.19047619047619) internal successors, (2167), 21 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:53,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:53,684 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:53,684 INFO L175 Difference]: Start difference. First operand has 185 places, 171 transitions, 457 flow. Second operand 21 states and 2167 transitions. [2022-09-16 11:35:53,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 276 transitions, 1135 flow [2022-09-16 11:35:53,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 276 transitions, 1124 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-09-16 11:35:53,724 INFO L231 Difference]: Finished difference. Result has 206 places, 199 transitions, 711 flow [2022-09-16 11:35:53,724 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=711, PETRI_PLACES=206, PETRI_TRANSITIONS=199} [2022-09-16 11:35:53,725 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 40 predicate places. [2022-09-16 11:35:53,725 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 199 transitions, 711 flow [2022-09-16 11:35:53,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.9090909090909) internal successors, (2110), 22 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:53,726 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:53,726 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:53,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:53,727 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:35:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:53,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1996303698, now seen corresponding path program 1 times [2022-09-16 11:35:53,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:53,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673644044] [2022-09-16 11:35:53,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:53,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:54,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:54,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673644044] [2022-09-16 11:35:54,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673644044] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:54,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:54,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-16 11:35:54,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534732996] [2022-09-16 11:35:54,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:54,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 11:35:54,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:54,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 11:35:54,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:35:54,445 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-09-16 11:35:54,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 199 transitions, 711 flow. Second operand has 22 states, 22 states have (on average 95.95454545454545) internal successors, (2111), 22 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:54,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:54,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-09-16 11:35:54,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:57,709 INFO L130 PetriNetUnfolder]: 6088/13999 cut-off events. [2022-09-16 11:35:57,710 INFO L131 PetriNetUnfolder]: For 9246/11313 co-relation queries the response was YES. [2022-09-16 11:35:57,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31117 conditions, 13999 events. 6088/13999 cut-off events. For 9246/11313 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 134200 event pairs, 2445 based on Foata normal form. 57/12917 useless extension candidates. Maximal degree in co-relation 29206. Up to 8450 conditions per place. [2022-09-16 11:35:57,892 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 154 selfloop transitions, 63 changer transitions 5/313 dead transitions. [2022-09-16 11:35:57,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 313 transitions, 1530 flow [2022-09-16 11:35:57,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 11:35:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-09-16 11:35:57,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2157 transitions. [2022-09-16 11:35:57,898 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5213923132704859 [2022-09-16 11:35:57,898 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2157 transitions. [2022-09-16 11:35:57,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2157 transitions. [2022-09-16 11:35:57,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:57,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2157 transitions. [2022-09-16 11:35:57,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 102.71428571428571) internal successors, (2157), 21 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:57,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:57,915 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:57,915 INFO L175 Difference]: Start difference. First operand has 206 places, 199 transitions, 711 flow. Second operand 21 states and 2157 transitions. [2022-09-16 11:35:57,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 313 transitions, 1530 flow [2022-09-16 11:35:57,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 313 transitions, 1469 flow, removed 22 selfloop flow, removed 9 redundant places. [2022-09-16 11:35:58,006 INFO L231 Difference]: Finished difference. Result has 226 places, 238 transitions, 1073 flow [2022-09-16 11:35:58,007 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1073, PETRI_PLACES=226, PETRI_TRANSITIONS=238} [2022-09-16 11:35:58,009 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 60 predicate places. [2022-09-16 11:35:58,010 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 238 transitions, 1073 flow [2022-09-16 11:35:58,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.95454545454545) internal successors, (2111), 22 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:58,011 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:58,012 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:35:58,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:35:58,012 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:35:58,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:58,013 INFO L85 PathProgramCache]: Analyzing trace with hash 927396420, now seen corresponding path program 1 times [2022-09-16 11:35:58,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:58,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353491061] [2022-09-16 11:35:58,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:58,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:58,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:58,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353491061] [2022-09-16 11:35:58,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353491061] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:58,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:58,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-09-16 11:35:58,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393238062] [2022-09-16 11:35:58,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:58,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 11:35:58,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:58,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 11:35:58,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:35:58,735 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:35:58,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 238 transitions, 1073 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:35:58,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:58,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:35:58,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:04,124 INFO L130 PetriNetUnfolder]: 6744/14713 cut-off events. [2022-09-16 11:36:04,124 INFO L131 PetriNetUnfolder]: For 12793/15822 co-relation queries the response was YES. [2022-09-16 11:36:04,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35183 conditions, 14713 events. 6744/14713 cut-off events. For 12793/15822 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 135260 event pairs, 1895 based on Foata normal form. 189/14166 useless extension candidates. Maximal degree in co-relation 33297. Up to 3338 conditions per place. [2022-09-16 11:36:04,302 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 510 selfloop transitions, 87 changer transitions 6/694 dead transitions. [2022-09-16 11:36:04,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 694 transitions, 4184 flow [2022-09-16 11:36:04,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:36:04,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:36:04,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3862 transitions. [2022-09-16 11:36:04,312 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5765900268736937 [2022-09-16 11:36:04,312 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3862 transitions. [2022-09-16 11:36:04,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3862 transitions. [2022-09-16 11:36:04,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:04,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3862 transitions. [2022-09-16 11:36:04,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 113.58823529411765) internal successors, (3862), 34 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:04,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:04,336 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:04,336 INFO L175 Difference]: Start difference. First operand has 226 places, 238 transitions, 1073 flow. Second operand 34 states and 3862 transitions. [2022-09-16 11:36:04,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 694 transitions, 4184 flow [2022-09-16 11:36:04,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 694 transitions, 4115 flow, removed 27 selfloop flow, removed 8 redundant places. [2022-09-16 11:36:04,553 INFO L231 Difference]: Finished difference. Result has 263 places, 294 transitions, 1665 flow [2022-09-16 11:36:04,554 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=1665, PETRI_PLACES=263, PETRI_TRANSITIONS=294} [2022-09-16 11:36:04,559 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 97 predicate places. [2022-09-16 11:36:04,560 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 294 transitions, 1665 flow [2022-09-16 11:36:04,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:04,566 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:04,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:36:04,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:36:04,570 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:36:04,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash 206731432, now seen corresponding path program 1 times [2022-09-16 11:36:04,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:04,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442224840] [2022-09-16 11:36:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:04,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:36:05,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:05,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442224840] [2022-09-16 11:36:05,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442224840] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:05,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:05,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-09-16 11:36:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087174948] [2022-09-16 11:36:05,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:05,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 11:36:05,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:05,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 11:36:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:36:05,222 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:36:05,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 294 transitions, 1665 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:05,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:05,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:36:05,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:11,455 INFO L130 PetriNetUnfolder]: 10013/22506 cut-off events. [2022-09-16 11:36:11,456 INFO L131 PetriNetUnfolder]: For 37058/44087 co-relation queries the response was YES. [2022-09-16 11:36:11,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62870 conditions, 22506 events. 10013/22506 cut-off events. For 37058/44087 co-relation queries the response was YES. Maximal size of possible extension queue 765. Compared 232487 event pairs, 3236 based on Foata normal form. 402/21796 useless extension candidates. Maximal degree in co-relation 62472. Up to 5089 conditions per place. [2022-09-16 11:36:11,866 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 557 selfloop transitions, 115 changer transitions 4/767 dead transitions. [2022-09-16 11:36:11,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 767 transitions, 5325 flow [2022-09-16 11:36:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:36:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:36:11,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3888 transitions. [2022-09-16 11:36:11,876 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5804717826216781 [2022-09-16 11:36:11,877 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3888 transitions. [2022-09-16 11:36:11,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3888 transitions. [2022-09-16 11:36:11,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:11,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3888 transitions. [2022-09-16 11:36:11,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.3529411764706) internal successors, (3888), 34 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:11,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:11,918 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:11,919 INFO L175 Difference]: Start difference. First operand has 263 places, 294 transitions, 1665 flow. Second operand 34 states and 3888 transitions. [2022-09-16 11:36:11,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 767 transitions, 5325 flow [2022-09-16 11:36:12,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 767 transitions, 5263 flow, removed 8 selfloop flow, removed 14 redundant places. [2022-09-16 11:36:12,255 INFO L231 Difference]: Finished difference. Result has 295 places, 337 transitions, 2442 flow [2022-09-16 11:36:12,256 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1603, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=2442, PETRI_PLACES=295, PETRI_TRANSITIONS=337} [2022-09-16 11:36:12,258 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 129 predicate places. [2022-09-16 11:36:12,258 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 337 transitions, 2442 flow [2022-09-16 11:36:12,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:12,259 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:12,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:36:12,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:36:12,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:36:12,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:12,261 INFO L85 PathProgramCache]: Analyzing trace with hash 465082248, now seen corresponding path program 2 times [2022-09-16 11:36:12,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:12,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034786119] [2022-09-16 11:36:12,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:12,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:36:12,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:12,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034786119] [2022-09-16 11:36:12,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034786119] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:12,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:12,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-09-16 11:36:12,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913823473] [2022-09-16 11:36:12,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:12,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 11:36:12,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:12,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 11:36:12,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-09-16 11:36:12,882 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:36:12,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 337 transitions, 2442 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 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) [2022-09-16 11:36:12,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:12,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:36:12,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:19,876 INFO L130 PetriNetUnfolder]: 10795/24086 cut-off events. [2022-09-16 11:36:19,876 INFO L131 PetriNetUnfolder]: For 77321/85723 co-relation queries the response was YES. [2022-09-16 11:36:20,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77054 conditions, 24086 events. 10795/24086 cut-off events. For 77321/85723 co-relation queries the response was YES. Maximal size of possible extension queue 830. Compared 249997 event pairs, 4033 based on Foata normal form. 263/23078 useless extension candidates. Maximal degree in co-relation 76591. Up to 5089 conditions per place. [2022-09-16 11:36:20,302 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 589 selfloop transitions, 119 changer transitions 2/801 dead transitions. [2022-09-16 11:36:20,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 801 transitions, 6597 flow [2022-09-16 11:36:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:36:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:36:20,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3883 transitions. [2022-09-16 11:36:20,329 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5797252911316811 [2022-09-16 11:36:20,329 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3883 transitions. [2022-09-16 11:36:20,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3883 transitions. [2022-09-16 11:36:20,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:20,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3883 transitions. [2022-09-16 11:36:20,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.20588235294117) internal successors, (3883), 34 states have internal predecessors, (3883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:20,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:20,350 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:20,350 INFO L175 Difference]: Start difference. First operand has 295 places, 337 transitions, 2442 flow. Second operand 34 states and 3883 transitions. [2022-09-16 11:36:20,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 801 transitions, 6597 flow [2022-09-16 11:36:20,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 801 transitions, 6449 flow, removed 39 selfloop flow, removed 19 redundant places. [2022-09-16 11:36:20,876 INFO L231 Difference]: Finished difference. Result has 321 places, 369 transitions, 3107 flow [2022-09-16 11:36:20,877 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2340, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=3107, PETRI_PLACES=321, PETRI_TRANSITIONS=369} [2022-09-16 11:36:20,877 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 155 predicate places. [2022-09-16 11:36:20,878 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 369 transitions, 3107 flow [2022-09-16 11:36:20,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 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) [2022-09-16 11:36:20,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:20,879 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:36:20,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:36:20,879 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:36:20,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash 404143428, now seen corresponding path program 3 times [2022-09-16 11:36:20,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:20,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734184487] [2022-09-16 11:36:20,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:20,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:36:21,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:21,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734184487] [2022-09-16 11:36:21,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734184487] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:21,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:21,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-09-16 11:36:21,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009654685] [2022-09-16 11:36:21,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:21,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 11:36:21,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:21,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 11:36:21,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-09-16 11:36:21,562 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:36:21,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 369 transitions, 3107 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 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) [2022-09-16 11:36:21,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:21,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:36:21,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:28,984 INFO L130 PetriNetUnfolder]: 11255/25229 cut-off events. [2022-09-16 11:36:28,985 INFO L131 PetriNetUnfolder]: For 96404/104887 co-relation queries the response was YES. [2022-09-16 11:36:29,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84608 conditions, 25229 events. 11255/25229 cut-off events. For 96404/104887 co-relation queries the response was YES. Maximal size of possible extension queue 856. Compared 264477 event pairs, 3982 based on Foata normal form. 294/24218 useless extension candidates. Maximal degree in co-relation 84295. Up to 5089 conditions per place. [2022-09-16 11:36:29,509 INFO L137 encePairwiseOnDemand]: 171/197 looper letters, 571 selfloop transitions, 135 changer transitions 2/799 dead transitions. [2022-09-16 11:36:29,510 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 799 transitions, 6995 flow [2022-09-16 11:36:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:36:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:36:29,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3872 transitions. [2022-09-16 11:36:29,521 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5780830098536877 [2022-09-16 11:36:29,521 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3872 transitions. [2022-09-16 11:36:29,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3872 transitions. [2022-09-16 11:36:29,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:29,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3872 transitions. [2022-09-16 11:36:29,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 113.88235294117646) internal successors, (3872), 34 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:29,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:29,539 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:29,540 INFO L175 Difference]: Start difference. First operand has 321 places, 369 transitions, 3107 flow. Second operand 34 states and 3872 transitions. [2022-09-16 11:36:29,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 799 transitions, 6995 flow [2022-09-16 11:36:30,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 799 transitions, 6633 flow, removed 140 selfloop flow, removed 20 redundant places. [2022-09-16 11:36:30,163 INFO L231 Difference]: Finished difference. Result has 340 places, 386 transitions, 3599 flow [2022-09-16 11:36:30,164 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2957, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=3599, PETRI_PLACES=340, PETRI_TRANSITIONS=386} [2022-09-16 11:36:30,164 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 174 predicate places. [2022-09-16 11:36:30,165 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 386 transitions, 3599 flow [2022-09-16 11:36:30,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 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) [2022-09-16 11:36:30,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:30,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:36:30,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:36:30,166 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:36:30,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:30,166 INFO L85 PathProgramCache]: Analyzing trace with hash -732264894, now seen corresponding path program 4 times [2022-09-16 11:36:30,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:30,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951513023] [2022-09-16 11:36:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:30,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:30,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:36:30,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:30,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951513023] [2022-09-16 11:36:30,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951513023] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:30,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:30,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-09-16 11:36:30,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93590548] [2022-09-16 11:36:30,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:30,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 11:36:30,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:30,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 11:36:30,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-09-16 11:36:30,843 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:36:30,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 386 transitions, 3599 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 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) [2022-09-16 11:36:30,844 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:30,844 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:36:30,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:38,585 INFO L130 PetriNetUnfolder]: 11936/26175 cut-off events. [2022-09-16 11:36:38,586 INFO L131 PetriNetUnfolder]: For 110027/119837 co-relation queries the response was YES. [2022-09-16 11:36:39,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89204 conditions, 26175 events. 11936/26175 cut-off events. For 110027/119837 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 271821 event pairs, 4364 based on Foata normal form. 288/25053 useless extension candidates. Maximal degree in co-relation 88870. Up to 5203 conditions per place. [2022-09-16 11:36:39,261 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 603 selfloop transitions, 143 changer transitions 2/839 dead transitions. [2022-09-16 11:36:39,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 839 transitions, 7631 flow [2022-09-16 11:36:39,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:36:39,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:36:39,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3884 transitions. [2022-09-16 11:36:39,267 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5798745894296805 [2022-09-16 11:36:39,267 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3884 transitions. [2022-09-16 11:36:39,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3884 transitions. [2022-09-16 11:36:39,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:39,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3884 transitions. [2022-09-16 11:36:39,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.23529411764706) internal successors, (3884), 34 states have internal predecessors, (3884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:39,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:39,284 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:39,284 INFO L175 Difference]: Start difference. First operand has 340 places, 386 transitions, 3599 flow. Second operand 34 states and 3884 transitions. [2022-09-16 11:36:39,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 839 transitions, 7631 flow [2022-09-16 11:36:40,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 839 transitions, 7424 flow, removed 8 selfloop flow, removed 26 redundant places. [2022-09-16 11:36:40,172 INFO L231 Difference]: Finished difference. Result has 357 places, 411 transitions, 4308 flow [2022-09-16 11:36:40,173 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=3408, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=4308, PETRI_PLACES=357, PETRI_TRANSITIONS=411} [2022-09-16 11:36:40,173 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 191 predicate places. [2022-09-16 11:36:40,173 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 411 transitions, 4308 flow [2022-09-16 11:36:40,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 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) [2022-09-16 11:36:40,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:40,175 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:36:40,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:36:40,175 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:36:40,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:40,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1204199210, now seen corresponding path program 5 times [2022-09-16 11:36:40,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:40,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204281506] [2022-09-16 11:36:40,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:40,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:40,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:36:40,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:40,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204281506] [2022-09-16 11:36:40,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204281506] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:40,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:40,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-09-16 11:36:40,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937959119] [2022-09-16 11:36:40,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:40,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 11:36:40,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:40,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 11:36:40,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:36:40,647 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:36:40,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 411 transitions, 4308 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:40,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:40,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:36:40,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:50,472 INFO L130 PetriNetUnfolder]: 15755/35327 cut-off events. [2022-09-16 11:36:50,472 INFO L131 PetriNetUnfolder]: For 153822/166624 co-relation queries the response was YES. [2022-09-16 11:36:51,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120548 conditions, 35327 events. 15755/35327 cut-off events. For 153822/166624 co-relation queries the response was YES. Maximal size of possible extension queue 1209. Compared 391106 event pairs, 4692 based on Foata normal form. 607/34221 useless extension candidates. Maximal degree in co-relation 120204. Up to 5687 conditions per place. [2022-09-16 11:36:51,423 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 610 selfloop transitions, 208 changer transitions 4/913 dead transitions. [2022-09-16 11:36:51,423 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 913 transitions, 9037 flow [2022-09-16 11:36:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:36:51,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:36:51,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3886 transitions. [2022-09-16 11:36:51,436 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5801731860256794 [2022-09-16 11:36:51,437 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3886 transitions. [2022-09-16 11:36:51,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3886 transitions. [2022-09-16 11:36:51,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:51,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3886 transitions. [2022-09-16 11:36:51,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.29411764705883) internal successors, (3886), 34 states have internal predecessors, (3886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:51,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:51,456 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:51,457 INFO L175 Difference]: Start difference. First operand has 357 places, 411 transitions, 4308 flow. Second operand 34 states and 3886 transitions. [2022-09-16 11:36:51,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 913 transitions, 9037 flow [2022-09-16 11:36:52,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 913 transitions, 8777 flow, removed 43 selfloop flow, removed 22 redundant places. [2022-09-16 11:36:52,818 INFO L231 Difference]: Finished difference. Result has 383 places, 466 transitions, 5629 flow [2022-09-16 11:36:52,818 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=4115, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=5629, PETRI_PLACES=383, PETRI_TRANSITIONS=466} [2022-09-16 11:36:52,819 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 217 predicate places. [2022-09-16 11:36:52,819 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 466 transitions, 5629 flow [2022-09-16 11:36:52,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:36:52,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:52,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:36:52,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:36:52,820 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:36:52,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:52,821 INFO L85 PathProgramCache]: Analyzing trace with hash -2069322908, now seen corresponding path program 6 times [2022-09-16 11:36:52,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:52,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317374139] [2022-09-16 11:36:52,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:52,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:36:53,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:53,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317374139] [2022-09-16 11:36:53,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317374139] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:53,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:53,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-09-16 11:36:53,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729693721] [2022-09-16 11:36:53,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:53,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-16 11:36:53,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:53,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-16 11:36:53,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-09-16 11:36:53,384 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:36:53,385 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 466 transitions, 5629 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 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) [2022-09-16 11:36:53,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:53,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:36:53,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:03,217 INFO L130 PetriNetUnfolder]: 14471/31396 cut-off events. [2022-09-16 11:37:03,218 INFO L131 PetriNetUnfolder]: For 188065/201780 co-relation queries the response was YES. [2022-09-16 11:37:04,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119289 conditions, 31396 events. 14471/31396 cut-off events. For 188065/201780 co-relation queries the response was YES. Maximal size of possible extension queue 1074. Compared 332146 event pairs, 4792 based on Foata normal form. 392/30145 useless extension candidates. Maximal degree in co-relation 118919. Up to 10555 conditions per place. [2022-09-16 11:37:04,421 INFO L137 encePairwiseOnDemand]: 171/197 looper letters, 620 selfloop transitions, 175 changer transitions 0/886 dead transitions. [2022-09-16 11:37:04,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 886 transitions, 9643 flow [2022-09-16 11:37:04,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:37:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:37:04,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3873 transitions. [2022-09-16 11:37:04,427 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.578232308151687 [2022-09-16 11:37:04,427 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3873 transitions. [2022-09-16 11:37:04,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3873 transitions. [2022-09-16 11:37:04,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:04,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3873 transitions. [2022-09-16 11:37:04,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 113.91176470588235) internal successors, (3873), 34 states have internal predecessors, (3873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:04,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:04,442 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:04,442 INFO L175 Difference]: Start difference. First operand has 383 places, 466 transitions, 5629 flow. Second operand 34 states and 3873 transitions. [2022-09-16 11:37:04,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 886 transitions, 9643 flow [2022-09-16 11:37:06,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 886 transitions, 9495 flow, removed 45 selfloop flow, removed 17 redundant places. [2022-09-16 11:37:06,519 INFO L231 Difference]: Finished difference. Result has 407 places, 473 transitions, 6110 flow [2022-09-16 11:37:06,520 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=5329, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=6110, PETRI_PLACES=407, PETRI_TRANSITIONS=473} [2022-09-16 11:37:06,521 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 241 predicate places. [2022-09-16 11:37:06,521 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 473 transitions, 6110 flow [2022-09-16 11:37:06,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 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) [2022-09-16 11:37:06,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:37:06,522 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:37:06,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 11:37:06,522 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:37:06,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:37:06,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1000029104, now seen corresponding path program 7 times [2022-09-16 11:37:06,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:37:06,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579632182] [2022-09-16 11:37:06,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:37:06,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:37:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:37:07,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:37:07,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:37:07,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579632182] [2022-09-16 11:37:07,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579632182] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:37:07,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:37:07,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-09-16 11:37:07,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872919375] [2022-09-16 11:37:07,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:37:07,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 11:37:07,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:37:07,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 11:37:07,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:37:07,028 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:37:07,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 473 transitions, 6110 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:07,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:37:07,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:37:07,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:17,627 INFO L130 PetriNetUnfolder]: 14724/32894 cut-off events. [2022-09-16 11:37:17,627 INFO L131 PetriNetUnfolder]: For 215507/228767 co-relation queries the response was YES. [2022-09-16 11:37:18,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124929 conditions, 32894 events. 14724/32894 cut-off events. For 215507/228767 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 358151 event pairs, 4870 based on Foata normal form. 524/31777 useless extension candidates. Maximal degree in co-relation 124539. Up to 6036 conditions per place. [2022-09-16 11:37:18,850 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 627 selfloop transitions, 209 changer transitions 2/929 dead transitions. [2022-09-16 11:37:18,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 929 transitions, 10501 flow [2022-09-16 11:37:18,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:37:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:37:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3891 transitions. [2022-09-16 11:37:18,854 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5809196775156763 [2022-09-16 11:37:18,854 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3891 transitions. [2022-09-16 11:37:18,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3891 transitions. [2022-09-16 11:37:18,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:18,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3891 transitions. [2022-09-16 11:37:18,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.44117647058823) internal successors, (3891), 34 states have internal predecessors, (3891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:18,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:18,867 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:18,867 INFO L175 Difference]: Start difference. First operand has 407 places, 473 transitions, 6110 flow. Second operand 34 states and 3891 transitions. [2022-09-16 11:37:18,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 929 transitions, 10501 flow [2022-09-16 11:37:20,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 929 transitions, 10052 flow, removed 117 selfloop flow, removed 24 redundant places. [2022-09-16 11:37:20,766 INFO L231 Difference]: Finished difference. Result has 422 places, 489 transitions, 6629 flow [2022-09-16 11:37:20,767 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=5827, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=473, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=6629, PETRI_PLACES=422, PETRI_TRANSITIONS=489} [2022-09-16 11:37:20,767 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 256 predicate places. [2022-09-16 11:37:20,767 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 489 transitions, 6629 flow [2022-09-16 11:37:20,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:20,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:37:20,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:37:20,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 11:37:20,768 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:37:20,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:37:20,769 INFO L85 PathProgramCache]: Analyzing trace with hash -177006608, now seen corresponding path program 8 times [2022-09-16 11:37:20,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:37:20,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328370144] [2022-09-16 11:37:20,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:37:20,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:37:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:37:21,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:37:21,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:37:21,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328370144] [2022-09-16 11:37:21,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328370144] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:37:21,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:37:21,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-09-16 11:37:21,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619818347] [2022-09-16 11:37:21,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:37:21,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 11:37:21,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:37:21,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 11:37:21,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:37:21,374 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:37:21,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 489 transitions, 6629 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:21,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:37:21,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:37:21,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:32,892 INFO L130 PetriNetUnfolder]: 15543/35214 cut-off events. [2022-09-16 11:37:32,892 INFO L131 PetriNetUnfolder]: For 253580/269485 co-relation queries the response was YES. [2022-09-16 11:37:34,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134920 conditions, 35214 events. 15543/35214 cut-off events. For 253580/269485 co-relation queries the response was YES. Maximal size of possible extension queue 1216. Compared 390022 event pairs, 6256 based on Foata normal form. 251/33659 useless extension candidates. Maximal degree in co-relation 134501. Up to 8407 conditions per place. [2022-09-16 11:37:34,271 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 703 selfloop transitions, 178 changer transitions 5/977 dead transitions. [2022-09-16 11:37:34,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 977 transitions, 11428 flow [2022-09-16 11:37:34,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:37:34,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:37:34,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3894 transitions. [2022-09-16 11:37:34,275 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5813675724096745 [2022-09-16 11:37:34,275 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3894 transitions. [2022-09-16 11:37:34,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3894 transitions. [2022-09-16 11:37:34,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:34,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3894 transitions. [2022-09-16 11:37:34,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.52941176470588) internal successors, (3894), 34 states have internal predecessors, (3894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:34,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:34,289 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:34,289 INFO L175 Difference]: Start difference. First operand has 422 places, 489 transitions, 6629 flow. Second operand 34 states and 3894 transitions. [2022-09-16 11:37:34,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 977 transitions, 11428 flow [2022-09-16 11:37:35,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 977 transitions, 11028 flow, removed 19 selfloop flow, removed 26 redundant places. [2022-09-16 11:37:35,849 INFO L231 Difference]: Finished difference. Result has 443 places, 524 transitions, 7498 flow [2022-09-16 11:37:35,849 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=6298, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=7498, PETRI_PLACES=443, PETRI_TRANSITIONS=524} [2022-09-16 11:37:35,850 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 277 predicate places. [2022-09-16 11:37:35,850 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 524 transitions, 7498 flow [2022-09-16 11:37:35,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:35,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:37:35,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:37:35,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 11:37:35,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:37:35,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:37:35,851 INFO L85 PathProgramCache]: Analyzing trace with hash 207962130, now seen corresponding path program 9 times [2022-09-16 11:37:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:37:35,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068373604] [2022-09-16 11:37:35,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:37:35,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:37:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:37:36,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:37:36,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:37:36,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068373604] [2022-09-16 11:37:36,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068373604] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:37:36,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:37:36,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-09-16 11:37:36,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858653283] [2022-09-16 11:37:36,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:37:36,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 11:37:36,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:37:36,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 11:37:36,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:37:36,354 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:37:36,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 524 transitions, 7498 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:36,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:37:36,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:37:36,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:49,785 INFO L130 PetriNetUnfolder]: 17916/40732 cut-off events. [2022-09-16 11:37:49,785 INFO L131 PetriNetUnfolder]: For 307385/325502 co-relation queries the response was YES. [2022-09-16 11:37:51,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159238 conditions, 40732 events. 17916/40732 cut-off events. For 307385/325502 co-relation queries the response was YES. Maximal size of possible extension queue 1418. Compared 466714 event pairs, 6413 based on Foata normal form. 445/39089 useless extension candidates. Maximal degree in co-relation 158802. Up to 8577 conditions per place. [2022-09-16 11:37:51,539 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 694 selfloop transitions, 228 changer transitions 4/1017 dead transitions. [2022-09-16 11:37:51,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 1017 transitions, 12611 flow [2022-09-16 11:37:51,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-09-16 11:37:51,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-09-16 11:37:51,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3909 transitions. [2022-09-16 11:37:51,545 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5836070468796656 [2022-09-16 11:37:51,545 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3909 transitions. [2022-09-16 11:37:51,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3909 transitions. [2022-09-16 11:37:51,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:51,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3909 transitions. [2022-09-16 11:37:51,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.97058823529412) internal successors, (3909), 34 states have internal predecessors, (3909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:51,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:51,559 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:51,560 INFO L175 Difference]: Start difference. First operand has 443 places, 524 transitions, 7498 flow. Second operand 34 states and 3909 transitions. [2022-09-16 11:37:51,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 1017 transitions, 12611 flow [2022-09-16 11:37:54,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 1017 transitions, 12382 flow, removed 78 selfloop flow, removed 18 redundant places. [2022-09-16 11:37:54,463 INFO L231 Difference]: Finished difference. Result has 466 places, 555 transitions, 8698 flow [2022-09-16 11:37:54,464 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=7323, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=8698, PETRI_PLACES=466, PETRI_TRANSITIONS=555} [2022-09-16 11:37:54,465 INFO L287 CegarLoopForPetriNet]: 166 programPoint places, 300 predicate places. [2022-09-16 11:37:54,465 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 555 transitions, 8698 flow [2022-09-16 11:37:54,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:54,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:37:54,465 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:37:54,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 11:37:54,465 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:37:54,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:37:54,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1096340174, now seen corresponding path program 10 times [2022-09-16 11:37:54,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:37:54,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515929374] [2022-09-16 11:37:54,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:37:54,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:37:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:37:55,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:37:55,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:37:55,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515929374] [2022-09-16 11:37:55,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515929374] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:37:55,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:37:55,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-09-16 11:37:55,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973083869] [2022-09-16 11:37:55,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:37:55,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-16 11:37:55,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:37:55,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-16 11:37:55,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-09-16 11:37:55,037 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-09-16 11:37:55,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 555 transitions, 8698 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:37:55,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:37:55,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-09-16 11:37:55,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand