/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:51:31,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:51:31,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:51:32,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:51:32,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:51:32,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:51:32,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:51:32,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:51:32,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:51:32,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:51:32,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:51:32,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:51:32,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:51:32,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:51:32,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:51:32,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:51:32,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:51:32,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:51:32,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:51:32,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:51:32,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:51:32,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:51:32,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:51:32,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:51:32,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:51:32,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:51:32,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:51:32,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:51:32,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:51:32,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:51:32,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:51:32,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:51:32,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:51:32,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:51:32,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:51:32,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:51:32,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:51:32,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:51:32,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:51:32,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:51:32,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:51:32,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 00:51:32,060 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:51:32,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:51:32,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:51:32,061 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:51:32,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:51:32,062 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:51:32,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:51:32,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:51:32,062 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:51:32,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:51:32,063 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:51:32,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:51:32,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:51:32,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:51:32,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:51:32,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:51:32,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:51:32,064 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:51:32,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:51:32,064 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:51:32,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:51:32,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:51:32,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:51:32,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:51:32,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:51:32,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:51:32,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:51:32,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:51:32,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:51:32,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:51:32,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:51:32,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:51:32,066 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:51:32,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:51:32,066 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:51:32,066 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:51:32,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:51:32,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:51:32,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:51:32,282 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:51:32,282 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:51:32,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c [2023-03-31 00:51:33,358 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:51:33,609 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:51:33,609 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c [2023-03-31 00:51:33,628 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15806bbc2/f83d2a59f6824ffd8b04a7dd10d409ce/FLAG11c1c5376 [2023-03-31 00:51:33,642 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15806bbc2/f83d2a59f6824ffd8b04a7dd10d409ce [2023-03-31 00:51:33,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:51:33,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:51:33,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:51:33,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:51:33,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:51:33,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:51:33" (1/1) ... [2023-03-31 00:51:33,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b70517c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:33, skipping insertion in model container [2023-03-31 00:51:33,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:51:33" (1/1) ... [2023-03-31 00:51:33,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:51:33,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:51:33,970 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c[38051,38064] [2023-03-31 00:51:34,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:51:34,064 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:51:34,116 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c[38051,38064] [2023-03-31 00:51:34,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:51:34,171 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:51:34,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34 WrapperNode [2023-03-31 00:51:34,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:51:34,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:51:34,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:51:34,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:51:34,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (1/1) ... [2023-03-31 00:51:34,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (1/1) ... [2023-03-31 00:51:34,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (1/1) ... [2023-03-31 00:51:34,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (1/1) ... [2023-03-31 00:51:34,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (1/1) ... [2023-03-31 00:51:34,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (1/1) ... [2023-03-31 00:51:34,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (1/1) ... [2023-03-31 00:51:34,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (1/1) ... [2023-03-31 00:51:34,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:51:34,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:51:34,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:51:34,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:51:34,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (1/1) ... [2023-03-31 00:51:34,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:51:34,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:51:34,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 00:51:34,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 00:51:34,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:51:34,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:51:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 00:51:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:51:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-03-31 00:51:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-03-31 00:51:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 00:51:34,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-03-31 00:51:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-03-31 00:51:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-03-31 00:51:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 00:51:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 00:51:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 00:51:34,376 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-03-31 00:51:34,377 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__weight [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-03-31 00:51:34,378 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-03-31 00:51:34,379 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-03-31 00:51:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-03-31 00:51:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-03-31 00:51:34,380 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-03-31 00:51:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-03-31 00:51:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-03-31 00:51:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 00:51:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-03-31 00:51:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-03-31 00:51:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-03-31 00:51:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 00:51:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-03-31 00:51:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 00:51:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 00:51:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:51:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:51:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:51:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:51:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:51:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-03-31 00:51:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-03-31 00:51:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-03-31 00:51:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-03-31 00:51:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-03-31 00:51:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-03-31 00:51:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-03-31 00:51:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-03-31 00:51:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:51:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:51:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:51:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:51:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:51:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-03-31 00:51:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-03-31 00:51:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 00:51:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-03-31 00:51:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-03-31 00:51:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-03-31 00:51:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-03-31 00:51:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-03-31 00:51:34,385 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-03-31 00:51:34,386 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-03-31 00:51:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-03-31 00:51:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-03-31 00:51:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-03-31 00:51:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-03-31 00:51:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-03-31 00:51:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-03-31 00:51:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-03-31 00:51:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-03-31 00:51:34,387 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-03-31 00:51:34,388 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-03-31 00:51:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-03-31 00:51:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-03-31 00:51:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-03-31 00:51:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-03-31 00:51:34,389 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-03-31 00:51:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2023-03-31 00:51:34,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:51:34,393 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__weight [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:51:34,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-03-31 00:51:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:51:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:51:34,660 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:51:34,663 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:51:35,775 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:51:35,789 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:51:35,789 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-03-31 00:51:35,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:51:35 BoogieIcfgContainer [2023-03-31 00:51:35,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:51:35,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:51:35,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:51:35,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:51:35,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:51:33" (1/3) ... [2023-03-31 00:51:35,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7baffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:51:35, skipping insertion in model container [2023-03-31 00:51:35,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:34" (2/3) ... [2023-03-31 00:51:35,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7baffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:51:35, skipping insertion in model container [2023-03-31 00:51:35,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:51:35" (3/3) ... [2023-03-31 00:51:35,796 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product18.cil.c [2023-03-31 00:51:35,808 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:51:35,808 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:51:35,866 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:51:35,871 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@478051fc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:51:35,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:51:35,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 758 states, 526 states have (on average 1.6406844106463878) internal successors, (863), 555 states have internal predecessors, (863), 170 states have call successors, (170), 49 states have call predecessors, (170), 49 states have return successors, (170), 160 states have call predecessors, (170), 170 states have call successors, (170) [2023-03-31 00:51:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-03-31 00:51:35,889 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:51:35,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:51:35,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:51:35,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:51:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2038630072, now seen corresponding path program 1 times [2023-03-31 00:51:35,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:51:35,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317573806] [2023-03-31 00:51:35,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:51:35,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:51:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:51:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:51:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:51:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:51:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:51:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:51:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:51:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:51:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:51:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:51:36,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:51:36,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:51:36,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317573806] [2023-03-31 00:51:36,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317573806] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:51:36,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:51:36,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:51:36,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972603224] [2023-03-31 00:51:36,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:51:36,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:51:36,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:51:37,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:51:37,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:51:37,049 INFO L87 Difference]: Start difference. First operand has 758 states, 526 states have (on average 1.6406844106463878) internal successors, (863), 555 states have internal predecessors, (863), 170 states have call successors, (170), 49 states have call predecessors, (170), 49 states have return successors, (170), 160 states have call predecessors, (170), 170 states have call successors, (170) Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:51:45,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:51:45,024 INFO L93 Difference]: Finished difference Result 1616 states and 2828 transitions. [2023-03-31 00:51:45,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:51:45,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 85 [2023-03-31 00:51:45,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:51:45,057 INFO L225 Difference]: With dead ends: 1616 [2023-03-31 00:51:45,057 INFO L226 Difference]: Without dead ends: 1029 [2023-03-31 00:51:45,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:51:45,072 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1258 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 4351 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 4770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 4351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-03-31 00:51:45,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 703 Invalid, 4770 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 4351 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-03-31 00:51:45,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-03-31 00:51:45,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 591. [2023-03-31 00:51:45,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 437 states have (on average 1.6750572082379862) internal successors, (732), 458 states have internal predecessors, (732), 113 states have call successors, (113), 44 states have call predecessors, (113), 40 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2023-03-31 00:51:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 950 transitions. [2023-03-31 00:51:45,302 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 950 transitions. Word has length 85 [2023-03-31 00:51:45,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:51:45,303 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 950 transitions. [2023-03-31 00:51:45,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:51:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 950 transitions. [2023-03-31 00:51:45,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-03-31 00:51:45,311 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:51:45,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:51:45,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:51:45,312 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:51:45,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:51:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash -737612506, now seen corresponding path program 1 times [2023-03-31 00:51:45,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:51:45,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385768743] [2023-03-31 00:51:45,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:51:45,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:51:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:51:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:45,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:51:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:45,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:51:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:45,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:51:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:45,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:51:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:45,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:51:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:46,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:51:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:46,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:51:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:51:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:51:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:51:46,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:51:46,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385768743] [2023-03-31 00:51:46,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385768743] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:51:46,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:51:46,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:51:46,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392449066] [2023-03-31 00:51:46,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:51:46,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:51:46,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:51:46,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:51:46,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:51:46,065 INFO L87 Difference]: Start difference. First operand 591 states and 950 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:51:52,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:51:52,677 INFO L93 Difference]: Finished difference Result 1583 states and 2760 transitions. [2023-03-31 00:51:52,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:51:52,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 88 [2023-03-31 00:51:52,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:51:52,687 INFO L225 Difference]: With dead ends: 1583 [2023-03-31 00:51:52,687 INFO L226 Difference]: Without dead ends: 1029 [2023-03-31 00:51:52,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:51:52,695 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 2219 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 3677 mSolverCounterSat, 915 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 4592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 915 IncrementalHoareTripleChecker+Valid, 3677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-03-31 00:51:52,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 633 Invalid, 4592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [915 Valid, 3677 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-03-31 00:51:52,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-03-31 00:51:52,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 591. [2023-03-31 00:51:52,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 437 states have (on average 1.6727688787185355) internal successors, (731), 458 states have internal predecessors, (731), 113 states have call successors, (113), 44 states have call predecessors, (113), 40 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2023-03-31 00:51:52,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 949 transitions. [2023-03-31 00:51:52,878 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 949 transitions. Word has length 88 [2023-03-31 00:51:52,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:51:52,878 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 949 transitions. [2023-03-31 00:51:52,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:51:52,879 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 949 transitions. [2023-03-31 00:51:52,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-03-31 00:51:52,880 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:51:52,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:51:52,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:51:52,881 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:51:52,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:51:52,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1820018073, now seen corresponding path program 1 times [2023-03-31 00:51:52,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:51:52,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387354333] [2023-03-31 00:51:52,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:51:52,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:51:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:51:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:51:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:51:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:51:53,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:51:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:51:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:51:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:51:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:51:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:51:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:51:53,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:51:53,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387354333] [2023-03-31 00:51:53,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387354333] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:51:53,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:51:53,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:51:53,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777982544] [2023-03-31 00:51:53,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:51:53,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:51:53,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:51:53,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:51:53,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:51:53,532 INFO L87 Difference]: Start difference. First operand 591 states and 949 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:00,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:00,246 INFO L93 Difference]: Finished difference Result 1583 states and 2759 transitions. [2023-03-31 00:52:00,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:00,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 89 [2023-03-31 00:52:00,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:00,254 INFO L225 Difference]: With dead ends: 1583 [2023-03-31 00:52:00,254 INFO L226 Difference]: Without dead ends: 1029 [2023-03-31 00:52:00,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:00,262 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 1776 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 3930 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 4588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 3930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:00,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 648 Invalid, 4588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 3930 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-03-31 00:52:00,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-03-31 00:52:00,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 591. [2023-03-31 00:52:00,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 437 states have (on average 1.6704805491990846) internal successors, (730), 458 states have internal predecessors, (730), 113 states have call successors, (113), 44 states have call predecessors, (113), 40 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2023-03-31 00:52:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 948 transitions. [2023-03-31 00:52:00,401 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 948 transitions. Word has length 89 [2023-03-31 00:52:00,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:00,402 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 948 transitions. [2023-03-31 00:52:00,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:00,402 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 948 transitions. [2023-03-31 00:52:00,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-03-31 00:52:00,403 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:00,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:00,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:52:00,403 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:00,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash -933502782, now seen corresponding path program 1 times [2023-03-31 00:52:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:00,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610655337] [2023-03-31 00:52:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:00,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 00:52:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 00:52:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:00,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:00,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610655337] [2023-03-31 00:52:00,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610655337] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:00,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:00,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:00,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036489221] [2023-03-31 00:52:00,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:00,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:00,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:00,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:00,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:00,992 INFO L87 Difference]: Start difference. First operand 591 states and 948 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:08,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:08,545 INFO L93 Difference]: Finished difference Result 1583 states and 2758 transitions. [2023-03-31 00:52:08,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:08,546 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 90 [2023-03-31 00:52:08,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:08,551 INFO L225 Difference]: With dead ends: 1583 [2023-03-31 00:52:08,551 INFO L226 Difference]: Without dead ends: 1029 [2023-03-31 00:52:08,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:08,553 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1080 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 4454 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 4837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 4454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:08,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 686 Invalid, 4837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 4454 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-03-31 00:52:08,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-03-31 00:52:08,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 591. [2023-03-31 00:52:08,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 437 states have (on average 1.668192219679634) internal successors, (729), 458 states have internal predecessors, (729), 113 states have call successors, (113), 44 states have call predecessors, (113), 40 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2023-03-31 00:52:08,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 947 transitions. [2023-03-31 00:52:08,661 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 947 transitions. Word has length 90 [2023-03-31 00:52:08,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:08,661 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 947 transitions. [2023-03-31 00:52:08,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:08,661 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 947 transitions. [2023-03-31 00:52:08,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-03-31 00:52:08,662 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:08,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:08,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 00:52:08,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:08,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:08,663 INFO L85 PathProgramCache]: Analyzing trace with hash 860016963, now seen corresponding path program 1 times [2023-03-31 00:52:08,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:08,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596261160] [2023-03-31 00:52:08,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:08,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:08,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:08,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:08,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:08,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:08,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:52:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 00:52:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:09,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:09,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596261160] [2023-03-31 00:52:09,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596261160] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:09,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:09,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:09,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789649474] [2023-03-31 00:52:09,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:09,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:09,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:09,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:09,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:09,239 INFO L87 Difference]: Start difference. First operand 591 states and 947 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:16,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:16,071 INFO L93 Difference]: Finished difference Result 1583 states and 2757 transitions. [2023-03-31 00:52:16,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:16,072 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 91 [2023-03-31 00:52:16,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:16,077 INFO L225 Difference]: With dead ends: 1583 [2023-03-31 00:52:16,077 INFO L226 Difference]: Without dead ends: 1029 [2023-03-31 00:52:16,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:16,079 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 1225 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 4361 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 4788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 4361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:16,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 627 Invalid, 4788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 4361 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-03-31 00:52:16,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-03-31 00:52:16,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 591. [2023-03-31 00:52:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 437 states have (on average 1.665903890160183) internal successors, (728), 458 states have internal predecessors, (728), 113 states have call successors, (113), 44 states have call predecessors, (113), 40 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2023-03-31 00:52:16,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 946 transitions. [2023-03-31 00:52:16,176 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 946 transitions. Word has length 91 [2023-03-31 00:52:16,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:16,176 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 946 transitions. [2023-03-31 00:52:16,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:16,176 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 946 transitions. [2023-03-31 00:52:16,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-03-31 00:52:16,178 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:16,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:16,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 00:52:16,178 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:16,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:16,178 INFO L85 PathProgramCache]: Analyzing trace with hash 705903710, now seen corresponding path program 1 times [2023-03-31 00:52:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:16,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707713362] [2023-03-31 00:52:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:16,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:16,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:16,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:16,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707713362] [2023-03-31 00:52:16,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707713362] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:16,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:16,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 00:52:16,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523418438] [2023-03-31 00:52:16,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:16,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 00:52:16,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:16,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 00:52:16,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:52:16,895 INFO L87 Difference]: Start difference. First operand 591 states and 946 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-03-31 00:52:23,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:23,938 INFO L93 Difference]: Finished difference Result 1537 states and 2672 transitions. [2023-03-31 00:52:23,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:52:23,939 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 92 [2023-03-31 00:52:23,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:23,947 INFO L225 Difference]: With dead ends: 1537 [2023-03-31 00:52:23,947 INFO L226 Difference]: Without dead ends: 1029 [2023-03-31 00:52:23,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2023-03-31 00:52:23,950 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 2262 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 6732 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 7597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 6732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:23,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 1090 Invalid, 7597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [865 Valid, 6732 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-03-31 00:52:23,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-03-31 00:52:24,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 591. [2023-03-31 00:52:24,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 437 states have (on average 1.654462242562929) internal successors, (723), 458 states have internal predecessors, (723), 113 states have call successors, (113), 44 states have call predecessors, (113), 40 states have return successors, (105), 101 states have call predecessors, (105), 105 states have call successors, (105) [2023-03-31 00:52:24,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 941 transitions. [2023-03-31 00:52:24,081 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 941 transitions. Word has length 92 [2023-03-31 00:52:24,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:24,081 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 941 transitions. [2023-03-31 00:52:24,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 6 states have internal predecessors, (56), 4 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-03-31 00:52:24,081 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 941 transitions. [2023-03-31 00:52:24,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-03-31 00:52:24,083 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:24,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:52:24,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 00:52:24,083 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:24,083 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:24,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1087360256, now seen corresponding path program 1 times [2023-03-31 00:52:24,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:24,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475852618] [2023-03-31 00:52:24,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:24,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:24,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:24,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-03-31 00:52:24,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-03-31 00:52:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:24,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:24,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475852618] [2023-03-31 00:52:24,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475852618] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:24,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:24,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-03-31 00:52:24,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816835612] [2023-03-31 00:52:24,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:24,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-03-31 00:52:24,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:24,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-03-31 00:52:24,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-03-31 00:52:24,772 INFO L87 Difference]: Start difference. First operand 591 states and 941 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16)