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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:20:11,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:20:11,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:20:11,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:20:11,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:20:11,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:20:11,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:20:11,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:20:11,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:20:11,770 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:20:11,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:20:11,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:20:11,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:20:11,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:20:11,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:20:11,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:20:11,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:20:11,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:20:11,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:20:11,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:20:11,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:20:11,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:20:11,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:20:11,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:20:11,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:20:11,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:20:11,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:20:11,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:20:11,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:20:11,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:20:11,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:20:11,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:20:11,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:20:11,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:20:11,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:20:11,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:20:11,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:20:11,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:20:11,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:20:11,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:20:11,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:20:11,800 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 19:20:11,817 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:20:11,817 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:20:11,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:20:11,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:20:11,819 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:20:11,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:20:11,820 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:20:11,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:20:11,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:20:11,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:20:11,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:20:11,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:20:11,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:20:11,821 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:20:11,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:20:11,822 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:20:11,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:20:11,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:20:11,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:20:11,823 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:20:11,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:20:11,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:20:11,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:20:11,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:20:11,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:20:11,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:20:11,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:20:11,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:20:11,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:20:12,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:20:12,123 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:20:12,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:20:12,128 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:20:12,129 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:20:12,130 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product20.cil.c [2019-10-13 19:20:12,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3de220435/a88b3ea24c724900b9484ce0a0223881/FLAG694618f22 [2019-10-13 19:20:12,896 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:20:12,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product20.cil.c [2019-10-13 19:20:12,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3de220435/a88b3ea24c724900b9484ce0a0223881/FLAG694618f22 [2019-10-13 19:20:13,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3de220435/a88b3ea24c724900b9484ce0a0223881 [2019-10-13 19:20:13,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:20:13,058 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:20:13,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:20:13,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:20:13,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:20:13,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:13" (1/1) ... [2019-10-13 19:20:13,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a570853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:13, skipping insertion in model container [2019-10-13 19:20:13,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:13" (1/1) ... [2019-10-13 19:20:13,073 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:20:13,149 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:20:13,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:20:13,879 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:20:14,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:20:14,147 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:20:14,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14 WrapperNode [2019-10-13 19:20:14,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:20:14,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:20:14,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:20:14,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:20:14,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14" (1/1) ... [2019-10-13 19:20:14,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14" (1/1) ... [2019-10-13 19:20:14,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14" (1/1) ... [2019-10-13 19:20:14,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14" (1/1) ... [2019-10-13 19:20:14,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14" (1/1) ... [2019-10-13 19:20:14,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14" (1/1) ... [2019-10-13 19:20:14,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14" (1/1) ... [2019-10-13 19:20:14,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:20:14,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:20:14,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:20:14,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:20:14,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14" (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 19:20:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:20:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:20:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:20:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:20:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:20:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:20:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:20:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:20:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:20:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 19:20:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 19:20:14,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2019-10-13 19:20:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 19:20:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 19:20:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 19:20:14,442 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 19:20:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 19:20:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 19:20:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 19:20:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 19:20:14,443 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:20:14,444 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 19:20:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 19:20:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 19:20:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:20:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 19:20:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:20:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:20:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:20:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:20:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:20:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:20:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:20:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:20:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 19:20:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 19:20:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 19:20:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 19:20:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 19:20:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 19:20:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 19:20:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 19:20:14,449 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 19:20:14,449 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 19:20:14,449 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 19:20:14,449 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-13 19:20:14,449 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 19:20:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 19:20:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 19:20:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 19:20:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 19:20:14,450 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 19:20:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 19:20:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 19:20:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 19:20:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 19:20:14,451 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 19:20:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 19:20:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-13 19:20:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 19:20:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 19:20:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 19:20:14,452 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-13 19:20:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 19:20:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 19:20:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 19:20:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-13 19:20:14,453 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:20:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-13 19:20:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 19:20:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 19:20:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-13 19:20:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-13 19:20:14,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 19:20:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 19:20:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 19:20:14,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:20:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:20:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:20:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:20:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:20:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:20:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:20:14,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:20:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:20:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:20:14,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:20:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:20:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:20:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:20:14,461 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:20:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:20:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:20:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:20:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:20:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:20:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 19:20:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 19:20:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:20:14,463 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 19:20:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 19:20:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 19:20:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 19:20:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 19:20:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 19:20:14,464 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:20:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 19:20:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 19:20:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-13 19:20:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-13 19:20:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2019-10-13 19:20:14,465 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 19:20:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 19:20:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 19:20:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 19:20:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 19:20:14,466 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 19:20:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 19:20:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 19:20:14,467 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 19:20:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 19:20:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:20:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 19:20:14,468 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 19:20:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 19:20:14,469 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:20:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 19:20:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:20:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:20:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:20:14,470 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:20:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:20:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:20:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:20:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:20:14,471 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 19:20:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 19:20:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 19:20:14,472 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 19:20:14,473 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 19:20:14,476 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 19:20:14,476 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 19:20:14,476 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:20:14,477 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 19:20:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 19:20:14,483 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 19:20:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 19:20:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 19:20:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 19:20:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-13 19:20:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 19:20:14,484 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 19:20:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 19:20:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 19:20:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 19:20:14,485 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 19:20:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-13 19:20:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 19:20:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 19:20:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-13 19:20:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 19:20:14,486 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 19:20:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 19:20:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-13 19:20:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-13 19:20:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 19:20:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:20:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:20:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:20:16,949 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:20:16,950 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:20:16,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:16 BoogieIcfgContainer [2019-10-13 19:20:16,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:20:16,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:20:16,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:20:16,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:20:16,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:20:13" (1/3) ... [2019-10-13 19:20:16,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a8fb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:16, skipping insertion in model container [2019-10-13 19:20:16,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:14" (2/3) ... [2019-10-13 19:20:16,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a8fb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:16, skipping insertion in model container [2019-10-13 19:20:16,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:16" (3/3) ... [2019-10-13 19:20:16,964 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product20.cil.c [2019-10-13 19:20:16,974 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:20:16,986 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:20:17,000 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:20:17,046 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:20:17,046 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:20:17,046 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:20:17,046 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:20:17,047 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:20:17,047 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:20:17,047 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:20:17,047 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:20:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states. [2019-10-13 19:20:17,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 19:20:17,113 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:20:17,114 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 19:20:17,117 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:20:17,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:20:17,123 INFO L82 PathProgramCache]: Analyzing trace with hash -570931917, now seen corresponding path program 1 times [2019-10-13 19:20:17,132 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:20:17,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964455575] [2019-10-13 19:20:17,133 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:17,133 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:17,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:20:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:18,773 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-13 19:20:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:19,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:19,093 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 19:20:19,094 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964455575] [2019-10-13 19:20:19,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:20:19,095 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:20:19,096 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651609799] [2019-10-13 19:20:19,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:20:19,101 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:20:19,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:20:19,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:20:19,118 INFO L87 Difference]: Start difference. First operand 751 states. Second operand 7 states. [2019-10-13 19:20:21,005 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:20:21,889 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2019-10-13 19:20:31,790 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:20:38,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:20:38,932 INFO L93 Difference]: Finished difference Result 1442 states and 2419 transitions. [2019-10-13 19:20:38,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:20:38,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-10-13 19:20:38,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:20:38,965 INFO L225 Difference]: With dead ends: 1442 [2019-10-13 19:20:38,965 INFO L226 Difference]: Without dead ends: 831 [2019-10-13 19:20:38,974 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:20:38,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2019-10-13 19:20:39,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 596. [2019-10-13 19:20:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2019-10-13 19:20:39,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 941 transitions. [2019-10-13 19:20:39,227 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 941 transitions. Word has length 87 [2019-10-13 19:20:39,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:20:39,228 INFO L462 AbstractCegarLoop]: Abstraction has 596 states and 941 transitions. [2019-10-13 19:20:39,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:20:39,228 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 941 transitions. [2019-10-13 19:20:39,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:20:39,233 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:20:39,233 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 19:20:39,234 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:20:39,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:20:39,234 INFO L82 PathProgramCache]: Analyzing trace with hash 801065692, now seen corresponding path program 1 times [2019-10-13 19:20:39,234 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:20:39,235 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104359906] [2019-10-13 19:20:39,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:39,235 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:39,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:20:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,212 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-13 19:20:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,511 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 19:20:40,512 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104359906] [2019-10-13 19:20:40,512 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:20:40,513 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:20:40,513 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590714697] [2019-10-13 19:20:40,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:20:40,526 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:20:40,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:20:40,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:20:40,533 INFO L87 Difference]: Start difference. First operand 596 states and 941 transitions. Second operand 7 states. [2019-10-13 19:20:42,310 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:20:43,162 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 390