java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:20:15,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:20:15,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:20:15,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:20:15,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:20:15,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:20:15,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:20:15,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:20:15,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:20:15,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:20:15,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:20:15,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:20:15,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:20:15,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:20:15,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:20:15,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:20:15,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:20:15,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:20:15,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:20:15,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:20:15,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:20:15,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:20:15,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:20:15,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:20:15,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:20:15,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:20:15,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:20:15,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:20:15,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:20:15,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:20:15,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:20:15,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:20:15,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:20:15,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:20:15,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:20:15,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:20:15,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:20:15,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:20:15,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:20:15,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:20:15,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:20:15,446 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 [2019-10-13 19:20:15,468 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:20:15,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:20:15,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:20:15,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:20:15,471 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:20:15,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:20:15,471 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:20:15,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:20:15,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:20:15,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:20:15,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:20:15,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:20:15,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:20:15,473 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:20:15,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:20:15,474 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:20:15,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:20:15,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:20:15,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:20:15,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:20:15,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:20:15,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:20:15,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:20:15,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:20:15,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:20:15,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:20:15,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:20:15,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:20:15,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:20:15,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:20:15,781 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:20:15,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:20:15,788 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:20:15,788 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:20:15,789 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2019-10-13 19:20:15,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f863195e6/e8fa348ff5e64f6fae91293e39b475c2/FLAG1c06a6e55 [2019-10-13 19:20:16,513 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:20:16,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2019-10-13 19:20:16,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f863195e6/e8fa348ff5e64f6fae91293e39b475c2/FLAG1c06a6e55 [2019-10-13 19:20:16,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f863195e6/e8fa348ff5e64f6fae91293e39b475c2 [2019-10-13 19:20:16,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:20:16,679 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:20:16,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:20:16,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:20:16,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:20:16,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:16" (1/1) ... [2019-10-13 19:20:16,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15161af2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:16, skipping insertion in model container [2019-10-13 19:20:16,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:16" (1/1) ... [2019-10-13 19:20:16,694 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:20:16,775 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:20:17,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:20:17,584 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:20:17,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:20:17,774 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:20:17,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17 WrapperNode [2019-10-13 19:20:17,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:20:17,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:20:17,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:20:17,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:20:17,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17" (1/1) ... [2019-10-13 19:20:17,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17" (1/1) ... [2019-10-13 19:20:17,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17" (1/1) ... [2019-10-13 19:20:17,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17" (1/1) ... [2019-10-13 19:20:17,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17" (1/1) ... [2019-10-13 19:20:17,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17" (1/1) ... [2019-10-13 19:20:17,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17" (1/1) ... [2019-10-13 19:20:17,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:20:17,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:20:17,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:20:17,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:20:17,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:20:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:20:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:20:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:20:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:20:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:20:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:20:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:20:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2019-10-13 19:20:18,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 19:20:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 19:20:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 19:20:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 19:20:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 19:20:18,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 19:20:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-13 19:20:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 19:20:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 19:20:18,021 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-13 19:20:18,022 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 19:20:18,022 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 19:20:18,022 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 19:20:18,022 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 19:20:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 19:20:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 19:20:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 19:20:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 19:20:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 19:20:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 19:20:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-13 19:20:18,024 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 19:20:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 19:20:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 19:20:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-13 19:20:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 19:20:18,025 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 19:20:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 19:20:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-13 19:20:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:20:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-13 19:20:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 19:20:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 19:20:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-13 19:20:18,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-13 19:20:18,027 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:20:18,027 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 19:20:18,027 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 19:20:18,027 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 19:20:18,027 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 19:20:18,027 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 19:20:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 19:20:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 19:20:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 19:20:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:20:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 19:20:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 19:20:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 19:20:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:20:18,028 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 19:20:18,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:20:18,029 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:20:18,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:20:18,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:20:18,029 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 19:20:18,029 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 19:20:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 19:20:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 19:20:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 19:20:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 19:20:18,030 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 19:20:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 19:20:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 19:20:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 19:20:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:20:18,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:20:18,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:20:18,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:20:18,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:20:18,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:20:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:20:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:20:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:20:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:20:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:20:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:20:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:20:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 19:20:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 19:20:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-13 19:20:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-13 19:20:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2019-10-13 19:20:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 19:20:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 19:20:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 19:20:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:20:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 19:20:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 19:20:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 19:20:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 19:20:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 19:20:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 19:20:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 19:20:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:20:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 19:20:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 19:20:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 19:20:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 19:20:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 19:20:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 19:20:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 19:20:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 19:20:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-13 19:20:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 19:20:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-13 19:20:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 19:20:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 19:20:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 19:20:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 19:20:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 19:20:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-13 19:20:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 19:20:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 19:20:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-13 19:20:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 19:20:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 19:20:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 19:20:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-13 19:20:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-13 19:20:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:20:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 19:20:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 19:20:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 19:20:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 19:20:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:20:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:20:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 19:20:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 19:20:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 19:20:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 19:20:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 19:20:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 19:20:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 19:20:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 19:20:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 19:20:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 19:20:18,044 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:20:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 19:20:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:20:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:20:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:20:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 19:20:18,045 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 19:20:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 19:20:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:20:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:20:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:20:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:20:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:20:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:20:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:20:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:20:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:20:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:20:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:20:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:20:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:20:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:20:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:20:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:20:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:20:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:20:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:20:20,331 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:20:20,332 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:20:20,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:20 BoogieIcfgContainer [2019-10-13 19:20:20,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:20:20,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:20:20,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:20:20,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:20:20,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:20:16" (1/3) ... [2019-10-13 19:20:20,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509438b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:20, skipping insertion in model container [2019-10-13 19:20:20,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:17" (2/3) ... [2019-10-13 19:20:20,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509438b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:20, skipping insertion in model container [2019-10-13 19:20:20,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:20" (3/3) ... [2019-10-13 19:20:20,345 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2019-10-13 19:20:20,357 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:20:20,371 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:20:20,383 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:20:20,429 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:20:20,429 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:20:20,430 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:20:20,430 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:20:20,430 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:20:20,430 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:20:20,430 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:20:20,430 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:20:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states. [2019-10-13 19:20:20,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 19:20:20,503 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:20:20,505 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:20:20,509 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:20:20,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:20:20,514 INFO L82 PathProgramCache]: Analyzing trace with hash 409688857, now seen corresponding path program 1 times [2019-10-13 19:20:20,521 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:20:20,521 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285671800] [2019-10-13 19:20:20,521 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:20,522 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:20,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:20:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,041 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-13 19:20:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,221 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-13 19:20:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:20:22,357 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285671800] [2019-10-13 19:20:22,358 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:20:22,358 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:20:22,358 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728757593] [2019-10-13 19:20:22,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:20:22,363 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:20:22,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:20:22,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:20:22,380 INFO L87 Difference]: Start difference. First operand 767 states. Second operand 7 states. [2019-10-13 19:20:23,973 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:20:24,835 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2019-10-13 19:20:34,482 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:20:41,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:20:41,642 INFO L93 Difference]: Finished difference Result 1474 states and 2465 transitions. [2019-10-13 19:20:41,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:20:41,648 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-10-13 19:20:41,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:20:41,681 INFO L225 Difference]: With dead ends: 1474 [2019-10-13 19:20:41,681 INFO L226 Difference]: Without dead ends: 847 [2019-10-13 19:20:41,692 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:20:41,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2019-10-13 19:20:41,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 612. [2019-10-13 19:20:41,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2019-10-13 19:20:41,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 964 transitions. [2019-10-13 19:20:41,932 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 964 transitions. Word has length 87 [2019-10-13 19:20:41,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:20:41,933 INFO L462 AbstractCegarLoop]: Abstraction has 612 states and 964 transitions. [2019-10-13 19:20:41,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:20:41,933 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 964 transitions. [2019-10-13 19:20:41,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:20:41,938 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:20:41,938 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:20:41,939 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:20:41,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:20:41,939 INFO L82 PathProgramCache]: Analyzing trace with hash -728771867, now seen corresponding path program 1 times [2019-10-13 19:20:41,939 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:20:41,940 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748623967] [2019-10-13 19:20:41,940 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:41,940 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:41,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:20:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:42,896 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-13 19:20:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,053 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-13 19:20:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:20:43,186 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748623967] [2019-10-13 19:20:43,186 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:20:43,186 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:20:43,187 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701237666] [2019-10-13 19:20:43,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:20:43,189 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:20:43,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:20:43,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:20:43,189 INFO L87 Difference]: Start difference. First operand 612 states and 964 transitions. Second operand 7 states. [2019-10-13 19:20:44,643 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:20:45,491 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 390