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_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:22:52,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:22:52,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:22:52,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:22:52,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:22:52,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:22:52,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:22:52,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:22:52,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:22:52,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:22:52,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:22:52,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:22:52,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:22:52,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:22:52,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:22:52,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:22:52,121 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:22:52,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:22:52,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:22:52,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:22:52,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:22:52,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:22:52,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:22:52,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:22:52,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:22:52,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:22:52,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:22:52,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:22:52,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:22:52,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:22:52,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:22:52,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:22:52,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:22:52,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:22:52,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:22:52,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:22:52,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:22:52,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:22:52,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:22:52,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:22:52,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:22:52,140 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 19:22:52,154 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:22:52,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:22:52,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:22:52,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:22:52,156 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:22:52,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:22:52,156 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:22:52,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:22:52,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:22:52,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:22:52,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:22:52,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:22:52,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:22:52,158 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:22:52,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:22:52,158 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:22:52,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:22:52,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:22:52,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:22:52,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:22:52,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:22:52,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:22:52,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:22:52,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:22:52,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:22:52,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:22:52,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:22:52,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:22:52,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:22:52,431 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:22:52,444 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:22:52,448 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:22:52,449 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:22:52,450 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:22:52,450 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2019-10-13 19:22:52,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9117154/8cb0f654d75047f998664662b29c4cb5/FLAGfd680a6fd [2019-10-13 19:22:53,160 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:22:53,161 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2019-10-13 19:22:53,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9117154/8cb0f654d75047f998664662b29c4cb5/FLAGfd680a6fd [2019-10-13 19:22:53,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9117154/8cb0f654d75047f998664662b29c4cb5 [2019-10-13 19:22:53,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:22:53,369 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:22:53,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:22:53,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:22:53,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:22:53,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:22:53" (1/1) ... [2019-10-13 19:22:53,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4771d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:53, skipping insertion in model container [2019-10-13 19:22:53,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:22:53" (1/1) ... [2019-10-13 19:22:53,385 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:22:53,461 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:22:54,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:22:54,156 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:22:54,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:22:54,364 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:22:54,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54 WrapperNode [2019-10-13 19:22:54,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:22:54,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:22:54,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:22:54,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:22:54,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54" (1/1) ... [2019-10-13 19:22:54,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54" (1/1) ... [2019-10-13 19:22:54,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54" (1/1) ... [2019-10-13 19:22:54,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54" (1/1) ... [2019-10-13 19:22:54,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54" (1/1) ... [2019-10-13 19:22:54,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54" (1/1) ... [2019-10-13 19:22:54,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54" (1/1) ... [2019-10-13 19:22:54,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:22:54,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:22:54,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:22:54,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:22:54,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54" (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 19:22:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:22:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:22:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:22:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:22:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:22:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:22:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:22:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:22:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:22:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:22:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:22:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:22:54,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:22:54,660 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 19:22:54,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 19:22:54,661 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 19:22:54,663 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 19:22:54,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 19:22:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 19:22:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 19:22:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 19:22:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 19:22:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 19:22:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 19:22:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 19:22:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 19:22:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 19:22:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 19:22:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 19:22:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:22:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 19:22:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 19:22:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 19:22:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:22:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 19:22:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:22:54,670 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:22:54,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:22:54,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:22:54,670 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 19:22:54,670 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 19:22:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 19:22:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-13 19:22:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 19:22:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 19:22:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 19:22:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 19:22:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 19:22:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 19:22:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 19:22:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 19:22:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 19:22:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 19:22:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 19:22:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 19:22:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 19:22:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 19:22:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 19:22:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 19:22:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 19:22:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 19:22:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2019-10-13 19:22:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:22:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__weight [2019-10-13 19:22:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 19:22:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 19:22:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 19:22:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 19:22:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 19:22:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-13 19:22:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-13 19:22:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:22:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 19:22:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 19:22:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:22:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:22:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:22:54,680 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:22:54,680 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:22:54,680 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:22:54,681 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:22:54,681 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:22:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:22:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:22:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:22:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:22:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:22:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:22:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:22:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:22:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:22:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:22:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:22:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:22:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:22:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:22:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:22:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 19:22:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 19:22:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 19:22:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 19:22:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 19:22:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 19:22:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 19:22:54,687 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 19:22:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 19:22:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 19:22:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 19:22:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 19:22:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 19:22:54,688 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 19:22:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 19:22:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 19:22:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 19:22:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:22:54,689 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 19:22:54,690 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 19:22:54,690 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 19:22:54,690 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:22:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 19:22:54,691 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 19:22:54,692 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 19:22:54,692 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 19:22:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 19:22:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:22:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 19:22:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:22:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:22:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:22:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:22:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:22:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:22:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 19:22:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 19:22:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 19:22:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 19:22:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 19:22:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 19:22:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 19:22:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 19:22:54,701 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 19:22:54,702 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-13 19:22:54,702 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 19:22:54,703 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 19:22:54,710 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 19:22:54,711 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 19:22:54,711 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 19:22:54,711 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 19:22:54,712 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 19:22:54,712 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 19:22:54,712 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 19:22:54,712 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 19:22:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 19:22:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2019-10-13 19:22:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-13 19:22:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-13 19:22:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__weight [2019-10-13 19:22:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 19:22:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 19:22:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 19:22:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:22:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:22:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:22:57,132 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:22:57,132 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:22:57,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:57 BoogieIcfgContainer [2019-10-13 19:22:57,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:22:57,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:22:57,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:22:57,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:22:57,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:22:53" (1/3) ... [2019-10-13 19:22:57,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4d9a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:57, skipping insertion in model container [2019-10-13 19:22:57,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:22:54" (2/3) ... [2019-10-13 19:22:57,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f4d9a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:22:57, skipping insertion in model container [2019-10-13 19:22:57,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:22:57" (3/3) ... [2019-10-13 19:22:57,144 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product18.cil.c [2019-10-13 19:22:57,154 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:22:57,164 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:22:57,175 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:22:57,218 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:22:57,218 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:22:57,218 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:22:57,218 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:22:57,218 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:22:57,219 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:22:57,219 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:22:57,219 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:22:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states. [2019-10-13 19:22:57,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-13 19:22:57,278 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:22:57,279 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, 1, 1, 1, 1, 1] [2019-10-13 19:22:57,281 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:22:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:22:57,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1366421017, now seen corresponding path program 1 times [2019-10-13 19:22:57,296 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:22:57,296 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183993413] [2019-10-13 19:22:57,297 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:22:57,297 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:22:57,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:22:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:58,900 WARN L191 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-13 19:22:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,119 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-10-13 19:22:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,283 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-13 19:22:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:59,526 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 19:22:59,527 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183993413] [2019-10-13 19:22:59,528 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:22:59,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:22:59,528 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764898285] [2019-10-13 19:22:59,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:22:59,533 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:22:59,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:22:59,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:22:59,550 INFO L87 Difference]: Start difference. First operand 781 states. Second operand 12 states. [2019-10-13 19:23:01,880 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:23:02,797 WARN L191 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:23:03,601 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:23:04,572 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:23:05,504 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2019-10-13 19:23:08,718 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-13 19:23:29,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:23:29,710 INFO L93 Difference]: Finished difference Result 1565 states and 2725 transitions. [2019-10-13 19:23:29,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 19:23:29,713 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2019-10-13 19:23:29,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:23:29,750 INFO L225 Difference]: With dead ends: 1565 [2019-10-13 19:23:29,750 INFO L226 Difference]: Without dead ends: 951 [2019-10-13 19:23:29,760 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2019-10-13 19:23:29,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2019-10-13 19:23:30,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 620. [2019-10-13 19:23:30,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-13 19:23:30,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 991 transitions. [2019-10-13 19:23:30,046 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 991 transitions. Word has length 93 [2019-10-13 19:23:30,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:23:30,047 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 991 transitions. [2019-10-13 19:23:30,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:23:30,048 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 991 transitions. [2019-10-13 19:23:30,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:23:30,061 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:23:30,061 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, 1, 1, 1, 1, 1, 1] [2019-10-13 19:23:30,061 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:23:30,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:23:30,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1643390832, now seen corresponding path program 1 times [2019-10-13 19:23:30,063 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:23:30,063 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128177294] [2019-10-13 19:23:30,063 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:23:30,063 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:23:30,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:23:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,028 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-13 19:23:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,227 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-10-13 19:23:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:31,511 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 19:23:31,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128177294] [2019-10-13 19:23:31,512 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:23:31,513 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:23:31,513 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913816064] [2019-10-13 19:23:31,515 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:23:31,515 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:23:31,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:23:31,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:23:31,516 INFO L87 Difference]: Start difference. First operand 620 states and 991 transitions. Second operand 9 states. [2019-10-13 19:23:33,301 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:23:34,101 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 391