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_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:23:07,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:23:07,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:23:07,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:23:07,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:23:07,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:23:07,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:23:07,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:23:07,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:23:07,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:23:07,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:23:07,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:23:07,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:23:07,777 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:23:07,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:23:07,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:23:07,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:23:07,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:23:07,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:23:07,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:23:07,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:23:07,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:23:07,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:23:07,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:23:07,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:23:07,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:23:07,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:23:07,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:23:07,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:23:07,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:23:07,806 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:23:07,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:23:07,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:23:07,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:23:07,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:23:07,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:23:07,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:23:07,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:23:07,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:23:07,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:23:07,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:23:07,815 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 19:23:07,842 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:23:07,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:23:07,845 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:23:07,845 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:23:07,845 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:23:07,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:23:07,846 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:23:07,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:23:07,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:23:07,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:23:07,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:23:07,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:23:07,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:23:07,847 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:23:07,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:23:07,848 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:23:07,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:23:07,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:23:07,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:23:07,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:23:07,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:23:07,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:23:07,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:23:07,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:23:07,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:23:07,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:23:07,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:23:07,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:23:07,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:23:08,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:23:08,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:23:08,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:23:08,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:23:08,139 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:23:08,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product26.cil.c [2019-10-13 19:23:08,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85ece3a20/e568d8ae652243e58b27b85d20ee3e9d/FLAG82209b015 [2019-10-13 19:23:08,817 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:23:08,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product26.cil.c [2019-10-13 19:23:08,841 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85ece3a20/e568d8ae652243e58b27b85d20ee3e9d/FLAG82209b015 [2019-10-13 19:23:09,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85ece3a20/e568d8ae652243e58b27b85d20ee3e9d [2019-10-13 19:23:09,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:23:09,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:23:09,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:23:09,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:23:09,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:23:09,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:09" (1/1) ... [2019-10-13 19:23:09,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345a22c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:09, skipping insertion in model container [2019-10-13 19:23:09,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:09" (1/1) ... [2019-10-13 19:23:09,070 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:23:09,159 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:23:09,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:23:09,893 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:23:10,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:23:10,120 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:23:10,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10 WrapperNode [2019-10-13 19:23:10,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:23:10,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:23:10,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:23:10,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:23:10,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10" (1/1) ... [2019-10-13 19:23:10,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10" (1/1) ... [2019-10-13 19:23:10,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10" (1/1) ... [2019-10-13 19:23:10,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10" (1/1) ... [2019-10-13 19:23:10,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10" (1/1) ... [2019-10-13 19:23:10,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10" (1/1) ... [2019-10-13 19:23:10,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10" (1/1) ... [2019-10-13 19:23:10,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:23:10,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:23:10,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:23:10,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:23:10,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10" (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 19:23:10,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:23:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:23:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:23:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:23:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 19:23:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 19:23:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 19:23:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 19:23:10,427 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 19:23:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 19:23:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 19:23:10,428 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 19:23:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 19:23:10,429 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 19:23:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:23:10,431 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 19:23:10,435 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 19:23:10,435 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 19:23:10,435 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:23:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 19:23:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:23:10,436 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:23:10,437 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:23:10,437 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 19:23:10,437 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 19:23:10,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 19:23:10,437 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-13 19:23:10,438 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 19:23:10,438 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 19:23:10,438 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-13 19:23:10,438 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 19:23:10,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 19:23:10,439 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 19:23:10,439 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 19:23:10,439 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 19:23:10,439 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 19:23:10,439 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 19:23:10,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 19:23:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 19:23:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 19:23:10,440 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 19:23:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 19:23:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 19:23:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 19:23:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 19:23:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 19:23:10,442 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2019-10-13 19:23:10,442 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:23:10,442 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__empty [2019-10-13 19:23:10,442 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 19:23:10,443 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 19:23:10,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:23:10,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:23:10,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:23:10,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:23:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:23:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:23:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 19:23:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 19:23:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 19:23:10,444 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 19:23:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 19:23:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 19:23:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 19:23:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 19:23:10,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 19:23:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 19:23:10,446 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 19:23:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:23:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:23:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:23:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:23:10,447 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:23:10,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-13 19:23:10,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-13 19:23:10,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:23:10,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:23:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 19:23:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 19:23:10,450 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 19:23:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:23:10,451 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:23:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 19:23:10,452 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 19:23:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:23:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 19:23:10,453 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 19:23:10,454 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 19:23:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 19:23:10,455 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 19:23:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 19:23:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 19:23:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 19:23:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 19:23:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 19:23:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 19:23:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 19:23:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 19:23:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 19:23:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 19:23:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 19:23:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:23:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 19:23:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:23:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:23:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:23:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:23:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:23:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:23:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:23:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 19:23:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 19:23:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 19:23:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 19:23:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 19:23:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 19:23:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 19:23:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 19:23:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 19:23:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 19:23:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 19:23:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 19:23:10,463 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 19:23:10,464 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 19:23:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-13 19:23:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 19:23:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-13 19:23:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 19:23:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 19:23:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 19:23:10,467 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 19:23:10,468 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 19:23:10,468 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 19:23:10,468 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 19:23:10,469 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 19:23:10,469 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 19:23:10,469 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 19:23:10,469 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2019-10-13 19:23:10,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-13 19:23:10,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-13 19:23:10,475 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__empty [2019-10-13 19:23:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:23:10,476 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 19:23:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:23:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:23:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:23:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:23:10,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:23:10,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:23:10,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:23:10,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:23:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:23:10,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:23:10,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:23:10,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:23:10,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:23:10,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:23:10,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:23:10,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:23:10,491 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 19:23:10,491 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:23:10,491 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:23:10,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:23:10,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:23:10,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:23:12,856 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:23:12,857 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:23:12,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:12 BoogieIcfgContainer [2019-10-13 19:23:12,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:23:12,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:23:12,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:23:12,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:23:12,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:23:09" (1/3) ... [2019-10-13 19:23:12,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a9dfc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:23:12, skipping insertion in model container [2019-10-13 19:23:12,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:10" (2/3) ... [2019-10-13 19:23:12,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a9dfc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:23:12, skipping insertion in model container [2019-10-13 19:23:12,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:12" (3/3) ... [2019-10-13 19:23:12,869 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product26.cil.c [2019-10-13 19:23:12,880 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:23:12,890 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:23:12,904 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:23:12,952 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:23:12,952 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:23:12,952 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:23:12,952 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:23:12,952 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:23:12,953 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:23:12,953 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:23:12,953 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:23:13,000 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states. [2019-10-13 19:23:13,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-13 19:23:13,026 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:23:13,028 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 19:23:13,033 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:23:13,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:23:13,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1751841435, now seen corresponding path program 1 times [2019-10-13 19:23:13,050 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:23:13,051 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492545650] [2019-10-13 19:23:13,051 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:23:13,051 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:23:13,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:23:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:14,755 WARN L191 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-13 19:23:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:14,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:14,995 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-10-13 19:23:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:15,464 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 19:23:15,465 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492545650] [2019-10-13 19:23:15,466 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:23:15,466 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:23:15,466 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775317791] [2019-10-13 19:23:15,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:23:15,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:23:15,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:23:15,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:23:15,488 INFO L87 Difference]: Start difference. First operand 797 states. Second operand 12 states. [2019-10-13 19:23:17,896 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:23:18,809 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:23:19,654 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:23:20,621 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:23:21,528 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2019-10-13 19:23:24,717 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-13 19:23:46,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:23:46,023 INFO L93 Difference]: Finished difference Result 1602 states and 2778 transitions. [2019-10-13 19:23:46,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 19:23:46,026 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2019-10-13 19:23:46,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:23:46,062 INFO L225 Difference]: With dead ends: 1602 [2019-10-13 19:23:46,062 INFO L226 Difference]: Without dead ends: 972 [2019-10-13 19:23:46,074 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2019-10-13 19:23:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2019-10-13 19:23:46,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 636. [2019-10-13 19:23:46,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 636 states. [2019-10-13 19:23:46,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 1014 transitions. [2019-10-13 19:23:46,373 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 1014 transitions. Word has length 93 [2019-10-13 19:23:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:23:46,374 INFO L462 AbstractCegarLoop]: Abstraction has 636 states and 1014 transitions. [2019-10-13 19:23:46,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:23:46,374 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 1014 transitions. [2019-10-13 19:23:46,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-13 19:23:46,380 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:23:46,380 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 19:23:46,380 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:23:46,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:23:46,381 INFO L82 PathProgramCache]: Analyzing trace with hash 449544218, now seen corresponding path program 1 times [2019-10-13 19:23:46,381 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:23:46,381 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054847182] [2019-10-13 19:23:46,382 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:23:46,382 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:23:46,382 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:23:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,373 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 385 [2019-10-13 19:23:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,620 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-10-13 19:23:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:23:47,883 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 19:23:47,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054847182] [2019-10-13 19:23:47,883 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:23:47,884 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:23:47,884 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033569167] [2019-10-13 19:23:47,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:23:47,886 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:23:47,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:23:47,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:23:47,887 INFO L87 Difference]: Start difference. First operand 636 states and 1014 transitions. Second operand 9 states. [2019-10-13 19:23:48,691 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 109