/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_5-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:35:48,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:35:48,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:35:48,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:35:48,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:35:48,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:35:48,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:35:48,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:35:48,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:35:48,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:35:48,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:35:48,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:35:48,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:35:48,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:35:48,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:35:48,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:35:48,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:35:48,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:35:48,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:35:48,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:35:48,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:35:48,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:35:48,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:35:48,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:35:48,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:35:48,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:35:48,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:35:48,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:35:48,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:35:48,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:35:48,465 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:35:48,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:35:48,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:35:48,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:35:48,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:35:48,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:35:48,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:35:48,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:35:48,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:35:48,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:35:48,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:35:48,473 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 11:35:48,503 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:35:48,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:35:48,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:35:48,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:35:48,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:35:48,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:35:48,505 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:35:48,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:35:48,506 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:35:48,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:35:48,507 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:35:48,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:35:48,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:35:48,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:35:48,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:35:48,508 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:35:48,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:35:48,508 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:35:48,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:35:48,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:35:48,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:35:48,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:35:48,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:35:48,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:48,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:35:48,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:35:48,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:35:48,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:35:48,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:35:48,510 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:35:48,511 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:35:48,511 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:35:48,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:35:48,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:35:48,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:35:48,769 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:35:48,769 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:35:48,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2022-09-16 11:35:48,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbf87c1d/8ac3bfe9b5a941ec99c71e0b020724ed/FLAGe1b5426d5 [2022-09-16 11:35:49,382 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:35:49,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_5-container_of.i [2022-09-16 11:35:49,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbf87c1d/8ac3bfe9b5a941ec99c71e0b020724ed/FLAGe1b5426d5 [2022-09-16 11:35:49,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fbf87c1d/8ac3bfe9b5a941ec99c71e0b020724ed [2022-09-16 11:35:49,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:35:49,863 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:35:49,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:49,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:35:49,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:35:49,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:49" (1/1) ... [2022-09-16 11:35:49,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c94e8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:49, skipping insertion in model container [2022-09-16 11:35:49,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:35:49" (1/1) ... [2022-09-16 11:35:49,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:35:49,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:35:50,126 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 11:35:50,566 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_5-container_of.i[75002,75015] [2022-09-16 11:35:50,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:50,625 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:35:50,638 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-09-16 11:35:50,666 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_5-container_of.i[75002,75015] [2022-09-16 11:35:50,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:35:50,748 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:35:50,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50 WrapperNode [2022-09-16 11:35:50,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:35:50,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:50,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:35:50,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:35:50,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,822 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-09-16 11:35:50,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:35:50,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:35:50,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:35:50,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:35:50,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:35:50,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:35:50,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:35:50,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:35:50,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (1/1) ... [2022-09-16 11:35:50,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:35:50,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:35:50,909 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 11:35:50,920 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 11:35:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:35:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:35:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:35:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:35:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:35:50,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:35:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-09-16 11:35:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:35:50,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:35:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-09-16 11:35:50,944 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-09-16 11:35:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:35:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:35:50,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:35:50,946 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 11:35:51,257 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:35:51,259 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:35:51,511 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:35:51,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:35:51,558 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:35:51,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:51 BoogieIcfgContainer [2022-09-16 11:35:51,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:35:51,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:35:51,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:35:51,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:35:51,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:35:49" (1/3) ... [2022-09-16 11:35:51,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27591b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:51, skipping insertion in model container [2022-09-16 11:35:51,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:35:50" (2/3) ... [2022-09-16 11:35:51,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27591b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:35:51, skipping insertion in model container [2022-09-16 11:35:51,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:35:51" (3/3) ... [2022-09-16 11:35:51,569 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-09-16 11:35:51,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:35:51,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-09-16 11:35:51,588 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:35:51,669 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-16 11:35:51,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-09-16 11:35:51,827 INFO L130 PetriNetUnfolder]: 8/216 cut-off events. [2022-09-16 11:35:51,828 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-16 11:35:51,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 216 events. 8/216 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 368 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-09-16 11:35:51,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-09-16 11:35:51,842 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-09-16 11:35:51,855 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:35:51,864 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;@2cee041, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:35:51,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-09-16 11:35:51,876 INFO L130 PetriNetUnfolder]: 0/67 cut-off events. [2022-09-16 11:35:51,876 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:35:51,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:51,880 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] [2022-09-16 11:35:51,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:35:51,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:51,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1154381408, now seen corresponding path program 1 times [2022-09-16 11:35:51,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:51,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323451037] [2022-09-16 11:35:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:51,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:52,837 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 11:35:52,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:52,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323451037] [2022-09-16 11:35:52,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323451037] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:52,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:52,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-09-16 11:35:52,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975552832] [2022-09-16 11:35:52,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:52,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-16 11:35:52,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:52,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-16 11:35:52,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-09-16 11:35:52,889 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 173 [2022-09-16 11:35:52,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 139 transitions, 287 flow. Second operand has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 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 11:35:52,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:52,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 173 [2022-09-16 11:35:52,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:54,780 INFO L130 PetriNetUnfolder]: 1073/4073 cut-off events. [2022-09-16 11:35:54,780 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-09-16 11:35:54,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5946 conditions, 4073 events. 1073/4073 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 38438 event pairs, 686 based on Foata normal form. 160/3755 useless extension candidates. Maximal degree in co-relation 5593. Up to 1273 conditions per place. [2022-09-16 11:35:54,819 INFO L137 encePairwiseOnDemand]: 153/173 looper letters, 82 selfloop transitions, 23 changer transitions 2/194 dead transitions. [2022-09-16 11:35:54,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 194 transitions, 617 flow [2022-09-16 11:35:54,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 11:35:54,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-09-16 11:35:54,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2151 transitions. [2022-09-16 11:35:54,842 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6907514450867052 [2022-09-16 11:35:54,843 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2151 transitions. [2022-09-16 11:35:54,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2151 transitions. [2022-09-16 11:35:54,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:54,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2151 transitions. [2022-09-16 11:35:54,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 119.5) internal successors, (2151), 18 states have internal predecessors, (2151), 0 states have call successors, (0), 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 11:35:54,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 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 11:35:54,879 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 173.0) internal successors, (3287), 19 states have internal predecessors, (3287), 0 states have call successors, (0), 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 11:35:54,881 INFO L175 Difference]: Start difference. First operand has 144 places, 139 transitions, 287 flow. Second operand 18 states and 2151 transitions. [2022-09-16 11:35:54,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 194 transitions, 617 flow [2022-09-16 11:35:54,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 194 transitions, 609 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:35:54,893 INFO L231 Difference]: Finished difference. Result has 165 places, 150 transitions, 403 flow [2022-09-16 11:35:54,895 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=403, PETRI_PLACES=165, PETRI_TRANSITIONS=150} [2022-09-16 11:35:54,899 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 21 predicate places. [2022-09-16 11:35:54,899 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 150 transitions, 403 flow [2022-09-16 11:35:54,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 114.66666666666667) internal successors, (1720), 15 states have internal predecessors, (1720), 0 states have call successors, (0), 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 11:35:54,901 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:54,901 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] [2022-09-16 11:35:54,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:35:54,901 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 11:35:54,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:54,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1816973476, now seen corresponding path program 1 times [2022-09-16 11:35:54,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:54,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15004932] [2022-09-16 11:35:54,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:54,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:55,428 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 11:35:55,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:55,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15004932] [2022-09-16 11:35:55,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15004932] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:55,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:55,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:35:55,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65470335] [2022-09-16 11:35:55,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:55,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 11:35:55,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:55,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 11:35:55,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2022-09-16 11:35:55,436 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-09-16 11:35:55,439 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 150 transitions, 403 flow. Second operand has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 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 11:35:55,439 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:55,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-09-16 11:35:55,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:35:57,359 INFO L130 PetriNetUnfolder]: 1529/4713 cut-off events. [2022-09-16 11:35:57,359 INFO L131 PetriNetUnfolder]: For 926/938 co-relation queries the response was YES. [2022-09-16 11:35:57,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8238 conditions, 4713 events. 1529/4713 cut-off events. For 926/938 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 42686 event pairs, 786 based on Foata normal form. 57/4242 useless extension candidates. Maximal degree in co-relation 7670. Up to 1468 conditions per place. [2022-09-16 11:35:57,398 INFO L137 encePairwiseOnDemand]: 151/173 looper letters, 123 selfloop transitions, 41 changer transitions 2/245 dead transitions. [2022-09-16 11:35:57,398 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 245 transitions, 986 flow [2022-09-16 11:35:57,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 11:35:57,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-09-16 11:35:57,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2348 transitions. [2022-09-16 11:35:57,405 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.646297825488577 [2022-09-16 11:35:57,405 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2348 transitions. [2022-09-16 11:35:57,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2348 transitions. [2022-09-16 11:35:57,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:35:57,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2348 transitions. [2022-09-16 11:35:57,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.80952380952381) internal successors, (2348), 21 states have internal predecessors, (2348), 0 states have call successors, (0), 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 11:35:57,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 11:35:57,420 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 11:35:57,420 INFO L175 Difference]: Start difference. First operand has 165 places, 150 transitions, 403 flow. Second operand 21 states and 2348 transitions. [2022-09-16 11:35:57,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 245 transitions, 986 flow [2022-09-16 11:35:57,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 245 transitions, 975 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-09-16 11:35:57,434 INFO L231 Difference]: Finished difference. Result has 188 places, 176 transitions, 629 flow [2022-09-16 11:35:57,434 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=629, PETRI_PLACES=188, PETRI_TRANSITIONS=176} [2022-09-16 11:35:57,435 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 44 predicate places. [2022-09-16 11:35:57,435 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 176 transitions, 629 flow [2022-09-16 11:35:57,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.6842105263158) internal successors, (2008), 19 states have internal predecessors, (2008), 0 states have call successors, (0), 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 11:35:57,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:35:57,437 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] [2022-09-16 11:35:57,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:35:57,437 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 11:35:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:35:57,438 INFO L85 PathProgramCache]: Analyzing trace with hash -393296468, now seen corresponding path program 1 times [2022-09-16 11:35:57,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:35:57,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163325743] [2022-09-16 11:35:57,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:35:57,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:35:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:35:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:35:57,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:35:57,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163325743] [2022-09-16 11:35:57,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163325743] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:35:57,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:35:57,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:35:57,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305619346] [2022-09-16 11:35:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:35:57,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 11:35:57,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:35:57,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 11:35:57,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2022-09-16 11:35:57,851 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 173 [2022-09-16 11:35:57,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 176 transitions, 629 flow. Second operand has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 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 11:35:57,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:35:57,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 173 [2022-09-16 11:35:57,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:00,008 INFO L130 PetriNetUnfolder]: 2463/7820 cut-off events. [2022-09-16 11:36:00,009 INFO L131 PetriNetUnfolder]: For 6315/7383 co-relation queries the response was YES. [2022-09-16 11:36:00,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16006 conditions, 7820 events. 2463/7820 cut-off events. For 6315/7383 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 79798 event pairs, 984 based on Foata normal form. 87/7138 useless extension candidates. Maximal degree in co-relation 15010. Up to 3199 conditions per place. [2022-09-16 11:36:00,087 INFO L137 encePairwiseOnDemand]: 151/173 looper letters, 121 selfloop transitions, 61 changer transitions 9/278 dead transitions. [2022-09-16 11:36:00,087 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 278 transitions, 1398 flow [2022-09-16 11:36:00,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-16 11:36:00,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-09-16 11:36:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2337 transitions. [2022-09-16 11:36:00,093 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.643270024772915 [2022-09-16 11:36:00,093 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2337 transitions. [2022-09-16 11:36:00,093 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2337 transitions. [2022-09-16 11:36:00,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:00,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2337 transitions. [2022-09-16 11:36:00,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 111.28571428571429) internal successors, (2337), 21 states have internal predecessors, (2337), 0 states have call successors, (0), 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 11:36:00,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 11:36:00,108 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 173.0) internal successors, (3806), 22 states have internal predecessors, (3806), 0 states have call successors, (0), 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 11:36:00,109 INFO L175 Difference]: Start difference. First operand has 188 places, 176 transitions, 629 flow. Second operand 21 states and 2337 transitions. [2022-09-16 11:36:00,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 278 transitions, 1398 flow [2022-09-16 11:36:00,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 278 transitions, 1324 flow, removed 28 selfloop flow, removed 10 redundant places. [2022-09-16 11:36:00,167 INFO L231 Difference]: Finished difference. Result has 207 places, 213 transitions, 976 flow [2022-09-16 11:36:00,167 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=976, PETRI_PLACES=207, PETRI_TRANSITIONS=213} [2022-09-16 11:36:00,168 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 63 predicate places. [2022-09-16 11:36:00,168 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 213 transitions, 976 flow [2022-09-16 11:36:00,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 105.73684210526316) internal successors, (2009), 19 states have internal predecessors, (2009), 0 states have call successors, (0), 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 11:36:00,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:00,170 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] [2022-09-16 11:36:00,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:36:00,170 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 11:36:00,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:00,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1153865424, now seen corresponding path program 1 times [2022-09-16 11:36:00,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:00,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972350359] [2022-09-16 11:36:00,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:00,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:00,866 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 11:36:00,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:00,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972350359] [2022-09-16 11:36:00,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972350359] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:00,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:00,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:36:00,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034587256] [2022-09-16 11:36:00,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:00,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:36:00,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:00,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:36:00,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:36:00,871 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:36:00,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 213 transitions, 976 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:36:00,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:00,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:36:00,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:05,937 INFO L130 PetriNetUnfolder]: 4352/16316 cut-off events. [2022-09-16 11:36:05,938 INFO L131 PetriNetUnfolder]: For 12697/19178 co-relation queries the response was YES. [2022-09-16 11:36:06,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31922 conditions, 16316 events. 4352/16316 cut-off events. For 12697/19178 co-relation queries the response was YES. Maximal size of possible extension queue 631. Compared 202782 event pairs, 1288 based on Foata normal form. 202/15457 useless extension candidates. Maximal degree in co-relation 30682. Up to 2179 conditions per place. [2022-09-16 11:36:06,113 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 432 selfloop transitions, 74 changer transitions 4/610 dead transitions. [2022-09-16 11:36:06,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 610 transitions, 3955 flow [2022-09-16 11:36:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:36:06,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:36:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3700 transitions. [2022-09-16 11:36:06,122 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.763831544178365 [2022-09-16 11:36:06,122 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3700 transitions. [2022-09-16 11:36:06,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3700 transitions. [2022-09-16 11:36:06,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:06,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3700 transitions. [2022-09-16 11:36:06,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.14285714285714) internal successors, (3700), 28 states have internal predecessors, (3700), 0 states have call successors, (0), 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 11:36:06,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:06,228 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:06,228 INFO L175 Difference]: Start difference. First operand has 207 places, 213 transitions, 976 flow. Second operand 28 states and 3700 transitions. [2022-09-16 11:36:06,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 610 transitions, 3955 flow [2022-09-16 11:36:06,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 610 transitions, 3886 flow, removed 27 selfloop flow, removed 8 redundant places. [2022-09-16 11:36:06,320 INFO L231 Difference]: Finished difference. Result has 239 places, 265 transitions, 1581 flow [2022-09-16 11:36:06,322 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=1581, PETRI_PLACES=239, PETRI_TRANSITIONS=265} [2022-09-16 11:36:06,326 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 95 predicate places. [2022-09-16 11:36:06,326 INFO L495 AbstractCegarLoop]: Abstraction has has 239 places, 265 transitions, 1581 flow [2022-09-16 11:36:06,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:36:06,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:06,332 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] [2022-09-16 11:36:06,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:36:06,333 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 11:36:06,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:06,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1387257904, now seen corresponding path program 2 times [2022-09-16 11:36:06,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:06,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917491787] [2022-09-16 11:36:06,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:06,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:06,812 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 11:36:06,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:06,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917491787] [2022-09-16 11:36:06,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917491787] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:06,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:06,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:36:06,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410251302] [2022-09-16 11:36:06,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:06,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:36:06,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:06,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:36:06,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:36:06,817 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:36:06,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 265 transitions, 1581 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:36:06,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:06,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:36:06,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:12,336 INFO L130 PetriNetUnfolder]: 6090/22209 cut-off events. [2022-09-16 11:36:12,336 INFO L131 PetriNetUnfolder]: For 34935/46306 co-relation queries the response was YES. [2022-09-16 11:36:12,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51904 conditions, 22209 events. 6090/22209 cut-off events. For 34935/46306 co-relation queries the response was YES. Maximal size of possible extension queue 890. Compared 290487 event pairs, 1666 based on Foata normal form. 369/21145 useless extension candidates. Maximal degree in co-relation 50844. Up to 2401 conditions per place. [2022-09-16 11:36:12,663 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 449 selfloop transitions, 119 changer transitions 4/672 dead transitions. [2022-09-16 11:36:12,663 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 672 transitions, 5315 flow [2022-09-16 11:36:12,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:36:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:36:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3699 transitions. [2022-09-16 11:36:12,674 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7636251032204789 [2022-09-16 11:36:12,674 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3699 transitions. [2022-09-16 11:36:12,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3699 transitions. [2022-09-16 11:36:12,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:12,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3699 transitions. [2022-09-16 11:36:12,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.10714285714286) internal successors, (3699), 28 states have internal predecessors, (3699), 0 states have call successors, (0), 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 11:36:12,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:12,712 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:12,712 INFO L175 Difference]: Start difference. First operand has 239 places, 265 transitions, 1581 flow. Second operand 28 states and 3699 transitions. [2022-09-16 11:36:12,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 672 transitions, 5315 flow [2022-09-16 11:36:12,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 672 transitions, 5239 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-09-16 11:36:12,904 INFO L231 Difference]: Finished difference. Result has 273 places, 318 transitions, 2529 flow [2022-09-16 11:36:12,905 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1535, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=2529, PETRI_PLACES=273, PETRI_TRANSITIONS=318} [2022-09-16 11:36:12,908 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 129 predicate places. [2022-09-16 11:36:12,908 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 318 transitions, 2529 flow [2022-09-16 11:36:12,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:36:12,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:12,910 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] [2022-09-16 11:36:12,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:36:12,910 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 11:36:12,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:12,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1346274258, now seen corresponding path program 1 times [2022-09-16 11:36:12,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:12,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614467670] [2022-09-16 11:36:12,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:12,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:13,477 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 11:36:13,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:13,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614467670] [2022-09-16 11:36:13,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614467670] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:13,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:13,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:36:13,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278196429] [2022-09-16 11:36:13,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:13,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:36:13,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:13,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:36:13,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:36:13,481 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:36:13,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 318 transitions, 2529 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:36:13,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:13,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:36:13,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:19,545 INFO L130 PetriNetUnfolder]: 6379/22401 cut-off events. [2022-09-16 11:36:19,546 INFO L131 PetriNetUnfolder]: For 67192/80775 co-relation queries the response was YES. [2022-09-16 11:36:19,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61482 conditions, 22401 events. 6379/22401 cut-off events. For 67192/80775 co-relation queries the response was YES. Maximal size of possible extension queue 913. Compared 288285 event pairs, 1452 based on Foata normal form. 187/21028 useless extension candidates. Maximal degree in co-relation 60085. Up to 3942 conditions per place. [2022-09-16 11:36:19,771 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 472 selfloop transitions, 169 changer transitions 4/745 dead transitions. [2022-09-16 11:36:19,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 745 transitions, 7629 flow [2022-09-16 11:36:19,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:36:19,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:36:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3671 transitions. [2022-09-16 11:36:19,778 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7578447563996696 [2022-09-16 11:36:19,778 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3671 transitions. [2022-09-16 11:36:19,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3671 transitions. [2022-09-16 11:36:19,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:19,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3671 transitions. [2022-09-16 11:36:19,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.10714285714286) internal successors, (3671), 28 states have internal predecessors, (3671), 0 states have call successors, (0), 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 11:36:19,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:19,791 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:19,791 INFO L175 Difference]: Start difference. First operand has 273 places, 318 transitions, 2529 flow. Second operand 28 states and 3671 transitions. [2022-09-16 11:36:19,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 745 transitions, 7629 flow [2022-09-16 11:36:20,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 745 transitions, 7505 flow, removed 41 selfloop flow, removed 11 redundant places. [2022-09-16 11:36:20,220 INFO L231 Difference]: Finished difference. Result has 301 places, 395 transitions, 4111 flow [2022-09-16 11:36:20,221 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=2453, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4111, PETRI_PLACES=301, PETRI_TRANSITIONS=395} [2022-09-16 11:36:20,222 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 157 predicate places. [2022-09-16 11:36:20,222 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 395 transitions, 4111 flow [2022-09-16 11:36:20,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:36:20,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:20,223 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] [2022-09-16 11:36:20,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:36:20,223 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 11:36:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:20,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1867025932, now seen corresponding path program 3 times [2022-09-16 11:36:20,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:20,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657740005] [2022-09-16 11:36:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:20,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:20,686 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 11:36:20,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:20,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657740005] [2022-09-16 11:36:20,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657740005] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:20,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:20,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:36:20,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353681537] [2022-09-16 11:36:20,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:20,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:36:20,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:20,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:36:20,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:36:20,690 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:36:20,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 395 transitions, 4111 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:36:20,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:20,692 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:36:20,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:27,201 INFO L130 PetriNetUnfolder]: 6476/24426 cut-off events. [2022-09-16 11:36:27,202 INFO L131 PetriNetUnfolder]: For 90216/104965 co-relation queries the response was YES. [2022-09-16 11:36:27,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68491 conditions, 24426 events. 6476/24426 cut-off events. For 90216/104965 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 326662 event pairs, 2414 based on Foata normal form. 225/22972 useless extension candidates. Maximal degree in co-relation 68085. Up to 4673 conditions per place. [2022-09-16 11:36:27,663 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 482 selfloop transitions, 166 changer transitions 2/750 dead transitions. [2022-09-16 11:36:27,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 750 transitions, 8138 flow [2022-09-16 11:36:27,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:36:27,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:36:27,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3682 transitions. [2022-09-16 11:36:27,671 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7601156069364162 [2022-09-16 11:36:27,671 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3682 transitions. [2022-09-16 11:36:27,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3682 transitions. [2022-09-16 11:36:27,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:27,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3682 transitions. [2022-09-16 11:36:27,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.5) internal successors, (3682), 28 states have internal predecessors, (3682), 0 states have call successors, (0), 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 11:36:27,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:27,687 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:27,687 INFO L175 Difference]: Start difference. First operand has 301 places, 395 transitions, 4111 flow. Second operand 28 states and 3682 transitions. [2022-09-16 11:36:27,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 750 transitions, 8138 flow [2022-09-16 11:36:28,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 750 transitions, 7745 flow, removed 160 selfloop flow, removed 13 redundant places. [2022-09-16 11:36:28,075 INFO L231 Difference]: Finished difference. Result has 321 places, 408 transitions, 4569 flow [2022-09-16 11:36:28,076 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=3918, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=153, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=4569, PETRI_PLACES=321, PETRI_TRANSITIONS=408} [2022-09-16 11:36:28,076 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 177 predicate places. [2022-09-16 11:36:28,076 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 408 transitions, 4569 flow [2022-09-16 11:36:28,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:36:28,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:28,077 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] [2022-09-16 11:36:28,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:36:28,077 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 11:36:28,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:28,078 INFO L85 PathProgramCache]: Analyzing trace with hash -829470714, now seen corresponding path program 4 times [2022-09-16 11:36:28,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:28,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688528258] [2022-09-16 11:36:28,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:28,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:28,507 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 11:36:28,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:28,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688528258] [2022-09-16 11:36:28,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688528258] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:28,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:28,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-09-16 11:36:28,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834358467] [2022-09-16 11:36:28,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:28,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 11:36:28,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:28,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 11:36:28,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-09-16 11:36:28,511 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:36:28,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 408 transitions, 4569 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 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 11:36:28,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:28,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:36:28,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:35,102 INFO L130 PetriNetUnfolder]: 6826/26164 cut-off events. [2022-09-16 11:36:35,103 INFO L131 PetriNetUnfolder]: For 106545/121480 co-relation queries the response was YES. [2022-09-16 11:36:35,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73596 conditions, 26164 events. 6826/26164 cut-off events. For 106545/121480 co-relation queries the response was YES. Maximal size of possible extension queue 957. Compared 354815 event pairs, 2558 based on Foata normal form. 190/24517 useless extension candidates. Maximal degree in co-relation 73167. Up to 4673 conditions per place. [2022-09-16 11:36:35,552 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 518 selfloop transitions, 181 changer transitions 2/801 dead transitions. [2022-09-16 11:36:35,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 801 transitions, 9021 flow [2022-09-16 11:36:35,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:36:35,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:36:35,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3695 transitions. [2022-09-16 11:36:35,558 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7627993393889347 [2022-09-16 11:36:35,558 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3695 transitions. [2022-09-16 11:36:35,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3695 transitions. [2022-09-16 11:36:35,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:35,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3695 transitions. [2022-09-16 11:36:35,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.96428571428572) internal successors, (3695), 28 states have internal predecessors, (3695), 0 states have call successors, (0), 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 11:36:35,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:35,577 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:35,577 INFO L175 Difference]: Start difference. First operand has 321 places, 408 transitions, 4569 flow. Second operand 28 states and 3695 transitions. [2022-09-16 11:36:35,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 801 transitions, 9021 flow [2022-09-16 11:36:36,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 801 transitions, 8755 flow, removed 17 selfloop flow, removed 20 redundant places. [2022-09-16 11:36:36,266 INFO L231 Difference]: Finished difference. Result has 340 places, 440 transitions, 5490 flow [2022-09-16 11:36:36,267 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=4335, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=5490, PETRI_PLACES=340, PETRI_TRANSITIONS=440} [2022-09-16 11:36:36,267 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 196 predicate places. [2022-09-16 11:36:36,267 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 440 transitions, 5490 flow [2022-09-16 11:36:36,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 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 11:36:36,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:36,268 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] [2022-09-16 11:36:36,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:36:36,269 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 11:36:36,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:36,269 INFO L85 PathProgramCache]: Analyzing trace with hash 610614602, now seen corresponding path program 5 times [2022-09-16 11:36:36,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:36,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147200460] [2022-09-16 11:36:36,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:36,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:36,657 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 11:36:36,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:36,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147200460] [2022-09-16 11:36:36,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147200460] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:36,657 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:36,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-09-16 11:36:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007629448] [2022-09-16 11:36:36,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:36,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 11:36:36,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:36,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 11:36:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-09-16 11:36:36,661 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:36:36,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 440 transitions, 5490 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 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 11:36:36,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:36,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:36:36,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:43,942 INFO L130 PetriNetUnfolder]: 7101/27920 cut-off events. [2022-09-16 11:36:43,943 INFO L131 PetriNetUnfolder]: For 128892/144746 co-relation queries the response was YES. [2022-09-16 11:36:44,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79909 conditions, 27920 events. 7101/27920 cut-off events. For 128892/144746 co-relation queries the response was YES. Maximal size of possible extension queue 1007. Compared 384725 event pairs, 2891 based on Foata normal form. 169/26162 useless extension candidates. Maximal degree in co-relation 79476. Up to 4673 conditions per place. [2022-09-16 11:36:44,498 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 504 selfloop transitions, 191 changer transitions 2/797 dead transitions. [2022-09-16 11:36:44,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 797 transitions, 9604 flow [2022-09-16 11:36:44,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:36:44,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:36:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3683 transitions. [2022-09-16 11:36:44,503 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7603220478943022 [2022-09-16 11:36:44,503 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3683 transitions. [2022-09-16 11:36:44,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3683 transitions. [2022-09-16 11:36:44,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:44,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3683 transitions. [2022-09-16 11:36:44,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.53571428571428) internal successors, (3683), 28 states have internal predecessors, (3683), 0 states have call successors, (0), 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 11:36:44,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:44,516 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:44,516 INFO L175 Difference]: Start difference. First operand has 340 places, 440 transitions, 5490 flow. Second operand 28 states and 3683 transitions. [2022-09-16 11:36:44,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 797 transitions, 9604 flow [2022-09-16 11:36:45,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 797 transitions, 9332 flow, removed 77 selfloop flow, removed 14 redundant places. [2022-09-16 11:36:45,451 INFO L231 Difference]: Finished difference. Result has 361 places, 460 transitions, 6236 flow [2022-09-16 11:36:45,451 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=5246, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=6236, PETRI_PLACES=361, PETRI_TRANSITIONS=460} [2022-09-16 11:36:45,452 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 217 predicate places. [2022-09-16 11:36:45,452 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 460 transitions, 6236 flow [2022-09-16 11:36:45,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 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 11:36:45,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:45,453 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] [2022-09-16 11:36:45,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-16 11:36:45,453 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 11:36:45,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:45,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1910987362, now seen corresponding path program 6 times [2022-09-16 11:36:45,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:45,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376816342] [2022-09-16 11:36:45,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:45,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:45,818 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 11:36:45,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:45,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376816342] [2022-09-16 11:36:45,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376816342] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:45,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:45,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-09-16 11:36:45,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350248558] [2022-09-16 11:36:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:45,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-09-16 11:36:45,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:45,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-09-16 11:36:45,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2022-09-16 11:36:45,822 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:36:45,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 460 transitions, 6236 flow. Second operand has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 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 11:36:45,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:45,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:36:45,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:36:52,459 INFO L130 PetriNetUnfolder]: 6321/23186 cut-off events. [2022-09-16 11:36:52,459 INFO L131 PetriNetUnfolder]: For 120228/137452 co-relation queries the response was YES. [2022-09-16 11:36:52,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70451 conditions, 23186 events. 6321/23186 cut-off events. For 120228/137452 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 304300 event pairs, 2012 based on Foata normal form. 234/21732 useless extension candidates. Maximal degree in co-relation 70079. Up to 4673 conditions per place. [2022-09-16 11:36:52,996 INFO L137 encePairwiseOnDemand]: 155/173 looper letters, 508 selfloop transitions, 192 changer transitions 0/800 dead transitions. [2022-09-16 11:36:52,996 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 800 transitions, 10012 flow [2022-09-16 11:36:52,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:36:52,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:36:52,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3684 transitions. [2022-09-16 11:36:53,000 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7605284888521883 [2022-09-16 11:36:53,000 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3684 transitions. [2022-09-16 11:36:53,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3684 transitions. [2022-09-16 11:36:53,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:36:53,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3684 transitions. [2022-09-16 11:36:53,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 131.57142857142858) internal successors, (3684), 28 states have internal predecessors, (3684), 0 states have call successors, (0), 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 11:36:53,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:53,018 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:36:53,018 INFO L175 Difference]: Start difference. First operand has 361 places, 460 transitions, 6236 flow. Second operand 28 states and 3684 transitions. [2022-09-16 11:36:53,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 800 transitions, 10012 flow [2022-09-16 11:36:53,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 800 transitions, 9690 flow, removed 67 selfloop flow, removed 18 redundant places. [2022-09-16 11:36:53,891 INFO L231 Difference]: Finished difference. Result has 380 places, 472 transitions, 6765 flow [2022-09-16 11:36:53,892 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=5777, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=6765, PETRI_PLACES=380, PETRI_TRANSITIONS=472} [2022-09-16 11:36:53,892 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 236 predicate places. [2022-09-16 11:36:53,893 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 472 transitions, 6765 flow [2022-09-16 11:36:53,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 121.36842105263158) internal successors, (2306), 19 states have internal predecessors, (2306), 0 states have call successors, (0), 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 11:36:53,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:53,893 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] [2022-09-16 11:36:53,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-09-16 11:36:53,894 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 11:36:53,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:53,894 INFO L85 PathProgramCache]: Analyzing trace with hash 238717968, now seen corresponding path program 7 times [2022-09-16 11:36:53,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:53,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452471903] [2022-09-16 11:36:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:53,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:54,270 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 11:36:54,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:54,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452471903] [2022-09-16 11:36:54,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452471903] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:54,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:54,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:36:54,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164305640] [2022-09-16 11:36:54,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:54,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:36:54,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:54,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:36:54,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:36:54,274 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:36:54,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 472 transitions, 6765 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:36:54,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:54,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:36:54,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:01,496 INFO L130 PetriNetUnfolder]: 6541/24600 cut-off events. [2022-09-16 11:37:01,496 INFO L131 PetriNetUnfolder]: For 137266/152484 co-relation queries the response was YES. [2022-09-16 11:37:01,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75104 conditions, 24600 events. 6541/24600 cut-off events. For 137266/152484 co-relation queries the response was YES. Maximal size of possible extension queue 904. Compared 328796 event pairs, 2172 based on Foata normal form. 378/23250 useless extension candidates. Maximal degree in co-relation 74704. Up to 2806 conditions per place. [2022-09-16 11:37:01,889 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 516 selfloop transitions, 229 changer transitions 2/847 dead transitions. [2022-09-16 11:37:01,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 847 transitions, 11054 flow [2022-09-16 11:37:01,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:37:01,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:37:01,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3704 transitions. [2022-09-16 11:37:01,893 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7646573080099092 [2022-09-16 11:37:01,893 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3704 transitions. [2022-09-16 11:37:01,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3704 transitions. [2022-09-16 11:37:01,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:01,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3704 transitions. [2022-09-16 11:37:01,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.28571428571428) internal successors, (3704), 28 states have internal predecessors, (3704), 0 states have call successors, (0), 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 11:37:01,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:01,905 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:01,907 INFO L175 Difference]: Start difference. First operand has 380 places, 472 transitions, 6765 flow. Second operand 28 states and 3704 transitions. [2022-09-16 11:37:01,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 847 transitions, 11054 flow [2022-09-16 11:37:02,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 847 transitions, 10727 flow, removed 73 selfloop flow, removed 16 redundant places. [2022-09-16 11:37:02,937 INFO L231 Difference]: Finished difference. Result has 397 places, 492 transitions, 7466 flow [2022-09-16 11:37:02,937 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=6472, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=472, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=209, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=7466, PETRI_PLACES=397, PETRI_TRANSITIONS=492} [2022-09-16 11:37:02,938 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 253 predicate places. [2022-09-16 11:37:02,938 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 492 transitions, 7466 flow [2022-09-16 11:37:02,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:37:02,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:37:02,939 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] [2022-09-16 11:37:02,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-09-16 11:37:02,939 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 11:37:02,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:37:02,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1497793654, now seen corresponding path program 8 times [2022-09-16 11:37:02,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:37:02,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592742754] [2022-09-16 11:37:02,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:37:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:37:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:37:03,389 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 11:37:03,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:37:03,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592742754] [2022-09-16 11:37:03,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592742754] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:37:03,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:37:03,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:37:03,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382589686] [2022-09-16 11:37:03,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:37:03,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:37:03,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:37:03,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:37:03,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:37:03,393 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:37:03,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 492 transitions, 7466 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:37:03,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:37:03,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:37:03,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:11,414 INFO L130 PetriNetUnfolder]: 6893/25631 cut-off events. [2022-09-16 11:37:11,414 INFO L131 PetriNetUnfolder]: For 158868/175677 co-relation queries the response was YES. [2022-09-16 11:37:12,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81294 conditions, 25631 events. 6893/25631 cut-off events. For 158868/175677 co-relation queries the response was YES. Maximal size of possible extension queue 939. Compared 343190 event pairs, 2778 based on Foata normal form. 158/23853 useless extension candidates. Maximal degree in co-relation 80867. Up to 3302 conditions per place. [2022-09-16 11:37:12,161 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 596 selfloop transitions, 198 changer transitions 4/898 dead transitions. [2022-09-16 11:37:12,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 898 transitions, 12151 flow [2022-09-16 11:37:12,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:37:12,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:37:12,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3709 transitions. [2022-09-16 11:37:12,164 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7656895127993394 [2022-09-16 11:37:12,164 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3709 transitions. [2022-09-16 11:37:12,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3709 transitions. [2022-09-16 11:37:12,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:12,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3709 transitions. [2022-09-16 11:37:12,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.46428571428572) internal successors, (3709), 28 states have internal predecessors, (3709), 0 states have call successors, (0), 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 11:37:12,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:12,174 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:12,174 INFO L175 Difference]: Start difference. First operand has 397 places, 492 transitions, 7466 flow. Second operand 28 states and 3709 transitions. [2022-09-16 11:37:12,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 898 transitions, 12151 flow [2022-09-16 11:37:13,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 898 transitions, 11714 flow, removed 33 selfloop flow, removed 20 redundant places. [2022-09-16 11:37:13,175 INFO L231 Difference]: Finished difference. Result has 418 places, 527 transitions, 8428 flow [2022-09-16 11:37:13,176 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=7098, PETRI_DIFFERENCE_MINUEND_PLACES=377, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=492, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=8428, PETRI_PLACES=418, PETRI_TRANSITIONS=527} [2022-09-16 11:37:13,176 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 274 predicate places. [2022-09-16 11:37:13,176 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 527 transitions, 8428 flow [2022-09-16 11:37:13,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:37:13,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:37:13,177 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] [2022-09-16 11:37:13,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-09-16 11:37:13,177 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 11:37:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:37:13,177 INFO L85 PathProgramCache]: Analyzing trace with hash 995728236, now seen corresponding path program 9 times [2022-09-16 11:37:13,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:37:13,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268352736] [2022-09-16 11:37:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:37:13,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:37:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:37:13,643 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 11:37:13,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:37:13,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268352736] [2022-09-16 11:37:13,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268352736] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:37:13,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:37:13,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:37:13,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414596244] [2022-09-16 11:37:13,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:37:13,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:37:13,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:37:13,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:37:13,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:37:13,647 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:37:13,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 527 transitions, 8428 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:37:13,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:37:13,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:37:13,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:22,570 INFO L130 PetriNetUnfolder]: 8031/29885 cut-off events. [2022-09-16 11:37:22,571 INFO L131 PetriNetUnfolder]: For 208169/229792 co-relation queries the response was YES. [2022-09-16 11:37:23,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96923 conditions, 29885 events. 8031/29885 cut-off events. For 208169/229792 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 412152 event pairs, 2557 based on Foata normal form. 522/28313 useless extension candidates. Maximal degree in co-relation 96469. Up to 3722 conditions per place. [2022-09-16 11:37:23,657 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 587 selfloop transitions, 253 changer transitions 6/946 dead transitions. [2022-09-16 11:37:23,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 946 transitions, 13688 flow [2022-09-16 11:37:23,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:37:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:37:23,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3726 transitions. [2022-09-16 11:37:23,661 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7691990090834021 [2022-09-16 11:37:23,661 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3726 transitions. [2022-09-16 11:37:23,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3726 transitions. [2022-09-16 11:37:23,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:23,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3726 transitions. [2022-09-16 11:37:23,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 133.07142857142858) internal successors, (3726), 28 states have internal predecessors, (3726), 0 states have call successors, (0), 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 11:37:23,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:23,672 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:23,672 INFO L175 Difference]: Start difference. First operand has 418 places, 527 transitions, 8428 flow. Second operand 28 states and 3726 transitions. [2022-09-16 11:37:23,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 946 transitions, 13688 flow [2022-09-16 11:37:25,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 946 transitions, 13442 flow, removed 94 selfloop flow, removed 12 redundant places. [2022-09-16 11:37:25,260 INFO L231 Difference]: Finished difference. Result has 441 places, 563 transitions, 9908 flow [2022-09-16 11:37:25,261 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=8252, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=9908, PETRI_PLACES=441, PETRI_TRANSITIONS=563} [2022-09-16 11:37:25,261 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 297 predicate places. [2022-09-16 11:37:25,261 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 563 transitions, 9908 flow [2022-09-16 11:37:25,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:37:25,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:37:25,262 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] [2022-09-16 11:37:25,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-09-16 11:37:25,262 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 11:37:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:37:25,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1409255902, now seen corresponding path program 10 times [2022-09-16 11:37:25,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:37:25,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152546946] [2022-09-16 11:37:25,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:37:25,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:37:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:37:25,677 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 11:37:25,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:37:25,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152546946] [2022-09-16 11:37:25,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152546946] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:37:25,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:37:25,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:37:25,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471622838] [2022-09-16 11:37:25,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:37:25,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:37:25,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:37:25,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:37:25,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:37:25,680 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:37:25,682 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 563 transitions, 9908 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:37:25,682 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:37:25,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:37:25,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:36,868 INFO L130 PetriNetUnfolder]: 9770/38138 cut-off events. [2022-09-16 11:37:36,868 INFO L131 PetriNetUnfolder]: For 285054/316112 co-relation queries the response was YES. [2022-09-16 11:37:38,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123752 conditions, 38138 events. 9770/38138 cut-off events. For 285054/316112 co-relation queries the response was YES. Maximal size of possible extension queue 1381. Compared 552764 event pairs, 4125 based on Foata normal form. 149/35553 useless extension candidates. Maximal degree in co-relation 123275. Up to 4523 conditions per place. [2022-09-16 11:37:38,401 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 687 selfloop transitions, 246 changer transitions 4/1037 dead transitions. [2022-09-16 11:37:38,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 1037 transitions, 16184 flow [2022-09-16 11:37:38,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:37:38,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:37:38,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3732 transitions. [2022-09-16 11:37:38,405 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7704376548307185 [2022-09-16 11:37:38,405 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3732 transitions. [2022-09-16 11:37:38,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3732 transitions. [2022-09-16 11:37:38,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:38,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3732 transitions. [2022-09-16 11:37:38,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 133.28571428571428) internal successors, (3732), 28 states have internal predecessors, (3732), 0 states have call successors, (0), 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 11:37:38,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:38,412 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:38,412 INFO L175 Difference]: Start difference. First operand has 441 places, 563 transitions, 9908 flow. Second operand 28 states and 3732 transitions. [2022-09-16 11:37:38,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 1037 transitions, 16184 flow [2022-09-16 11:37:40,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 1037 transitions, 15865 flow, removed 40 selfloop flow, removed 17 redundant places. [2022-09-16 11:37:40,988 INFO L231 Difference]: Finished difference. Result has 463 places, 619 transitions, 11834 flow [2022-09-16 11:37:40,989 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=9625, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=563, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=11834, PETRI_PLACES=463, PETRI_TRANSITIONS=619} [2022-09-16 11:37:40,990 INFO L287 CegarLoopForPetriNet]: 144 programPoint places, 319 predicate places. [2022-09-16 11:37:40,990 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 619 transitions, 11834 flow [2022-09-16 11:37:40,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:37:40,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:37:40,991 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] [2022-09-16 11:37:40,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-09-16 11:37:40,991 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-09-16 11:37:40,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:37:40,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1026898028, now seen corresponding path program 11 times [2022-09-16 11:37:40,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:37:40,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403877277] [2022-09-16 11:37:40,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:37:40,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:37:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:37:41,394 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 11:37:41,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:37:41,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403877277] [2022-09-16 11:37:41,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403877277] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:37:41,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:37:41,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-09-16 11:37:41,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080227312] [2022-09-16 11:37:41,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:37:41,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-16 11:37:41,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:37:41,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-16 11:37:41,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-09-16 11:37:41,397 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 173 [2022-09-16 11:37:41,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 619 transitions, 11834 flow. Second operand has 18 states, 18 states have (on average 121.44444444444444) internal successors, (2186), 18 states have internal predecessors, (2186), 0 states have call successors, (0), 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 11:37:41,398 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:37:41,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 173 [2022-09-16 11:37:41,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:54,020 INFO L130 PetriNetUnfolder]: 11243/42896 cut-off events. [2022-09-16 11:37:54,020 INFO L131 PetriNetUnfolder]: For 371365/411391 co-relation queries the response was YES. [2022-09-16 11:37:55,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144940 conditions, 42896 events. 11243/42896 cut-off events. For 371365/411391 co-relation queries the response was YES. Maximal size of possible extension queue 1624. Compared 630382 event pairs, 3931 based on Foata normal form. 301/40199 useless extension candidates. Maximal degree in co-relation 144457. Up to 7601 conditions per place. [2022-09-16 11:37:55,613 INFO L137 encePairwiseOnDemand]: 154/173 looper letters, 627 selfloop transitions, 310 changer transitions 6/1043 dead transitions. [2022-09-16 11:37:55,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 490 places, 1043 transitions, 17919 flow [2022-09-16 11:37:55,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-16 11:37:55,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-09-16 11:37:55,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3709 transitions. [2022-09-16 11:37:55,617 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7656895127993394 [2022-09-16 11:37:55,617 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3709 transitions. [2022-09-16 11:37:55,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3709 transitions. [2022-09-16 11:37:55,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:55,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3709 transitions. [2022-09-16 11:37:55,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 132.46428571428572) internal successors, (3709), 28 states have internal predecessors, (3709), 0 states have call successors, (0), 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 11:37:55,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:55,625 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 173.0) internal successors, (5017), 29 states have internal predecessors, (5017), 0 states have call successors, (0), 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 11:37:55,625 INFO L175 Difference]: Start difference. First operand has 463 places, 619 transitions, 11834 flow. Second operand 28 states and 3709 transitions. [2022-09-16 11:37:55,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 490 places, 1043 transitions, 17919 flow