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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:19:11,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:19:11,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:19:11,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:19:11,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:19:11,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:19:11,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:19:11,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:19:11,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:19:11,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:19:11,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:19:11,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:19:11,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:19:11,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:19:11,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:19:11,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:19:11,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:19:11,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:19:11,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:19:11,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:19:11,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:19:11,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:19:11,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:19:11,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:19:11,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:19:11,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:19:11,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:19:11,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:19:11,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:19:11,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:19:11,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:19:11,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:19:11,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:19:11,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:19:11,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:19:11,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:19:11,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:19:11,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:19:11,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:19:11,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:19:11,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:19:11,087 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 [2019-10-14 23:19:11,106 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:19:11,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:19:11,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:19:11,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:19:11,109 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:19:11,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:19:11,109 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:19:11,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:19:11,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:19:11,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:19:11,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:19:11,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:19:11,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:19:11,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:19:11,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:19:11,112 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:19:11,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:19:11,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:19:11,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:19:11,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:19:11,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:19:11,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:19:11,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:19:11,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:19:11,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:19:11,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:19:11,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:19:11,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:19:11,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:19:11,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:19:11,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:19:11,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:19:11,398 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:19:11,399 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:19:11,399 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c [2019-10-14 23:19:11,469 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aeb5042f/c65301aba97340f0b7108f1d4ecfd21e/FLAG36008526f [2019-10-14 23:19:12,119 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:19:12,120 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c [2019-10-14 23:19:12,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aeb5042f/c65301aba97340f0b7108f1d4ecfd21e/FLAG36008526f [2019-10-14 23:19:12,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aeb5042f/c65301aba97340f0b7108f1d4ecfd21e [2019-10-14 23:19:12,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:19:12,321 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:19:12,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:19:12,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:19:12,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:19:12,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:12" (1/1) ... [2019-10-14 23:19:12,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1dcce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:12, skipping insertion in model container [2019-10-14 23:19:12,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:12" (1/1) ... [2019-10-14 23:19:12,336 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:19:12,422 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:19:13,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:19:13,078 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:19:13,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:19:13,238 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:19:13,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13 WrapperNode [2019-10-14 23:19:13,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:19:13,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:19:13,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:19:13,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:19:13,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13" (1/1) ... [2019-10-14 23:19:13,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13" (1/1) ... [2019-10-14 23:19:13,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13" (1/1) ... [2019-10-14 23:19:13,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13" (1/1) ... [2019-10-14 23:19:13,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13" (1/1) ... [2019-10-14 23:19:13,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13" (1/1) ... [2019-10-14 23:19:13,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13" (1/1) ... [2019-10-14 23:19:13,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:19:13,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:19:13,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:19:13,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:19:13,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13" (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 [2019-10-14 23:19:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:19:13,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:19:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:19:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-14 23:19:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-14 23:19:13,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-14 23:19:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-14 23:19:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-14 23:19:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-14 23:19:13,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-14 23:19:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-14 23:19:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-14 23:19:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-14 23:19:13,507 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-14 23:19:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-14 23:19:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-14 23:19:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2019-10-14 23:19:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:19:13,508 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-14 23:19:13,509 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-14 23:19:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-14 23:19:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-14 23:19:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-14 23:19:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-14 23:19:13,510 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-14 23:19:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-14 23:19:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:19:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-14 23:19:13,511 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-14 23:19:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-14 23:19:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:19:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-14 23:19:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:19:13,512 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:19:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:19:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:19:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:19:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:19:13,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:19:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:19:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:19:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:19:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:19:13,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:19:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:19:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-14 23:19:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-14 23:19:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-14 23:19:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-14 23:19:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-14 23:19:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-14 23:19:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-14 23:19:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-14 23:19:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-14 23:19:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-14 23:19:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-14 23:19:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-14 23:19:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-14 23:19:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-14 23:19:13,518 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__base [2019-10-14 23:19:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-14 23:19:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-14 23:19:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-14 23:19:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-14 23:19:13,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-14 23:19:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-14 23:19:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-14 23:19:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:19:13,520 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-14 23:19:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-14 23:19:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-14 23:19:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-14 23:19:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:19:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:19:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:19:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-14 23:19:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-14 23:19:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-14 23:19:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-14 23:19:13,524 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:19:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-14 23:19:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-14 23:19:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-14 23:19:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-14 23:19:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-14 23:19:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-14 23:19:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-14 23:19:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-14 23:19:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-14 23:19:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-14 23:19:13,527 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-14 23:19:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-14 23:19:13,528 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-14 23:19:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:19:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-14 23:19:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-14 23:19:13,529 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-14 23:19:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-14 23:19:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2019-10-14 23:19:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-14 23:19:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-14 23:19:13,530 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-14 23:19:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:19:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:19:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:19:13,531 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-14 23:19:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-14 23:19:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-14 23:19:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-14 23:19:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-14 23:19:13,532 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-14 23:19:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-14 23:19:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-14 23:19:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-14 23:19:13,533 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:19:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-14 23:19:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:19:13,534 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:19:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:19:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:19:13,535 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:19:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:19:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:19:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:19:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:19:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:19:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:19:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:19:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:19:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:19:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:19:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:19:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:19:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:19:13,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:19:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:19:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:19:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:19:13,540 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:19:13,541 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:19:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:19:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-14 23:19:13,544 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-14 23:19:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-14 23:19:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-14 23:19:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-14 23:19:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-14 23:19:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-14 23:19:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-14 23:19:13,553 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-14 23:19:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__base [2019-10-14 23:19:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-14 23:19:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-14 23:19:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-14 23:19:13,554 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-14 23:19:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-14 23:19:13,555 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-14 23:19:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-14 23:19:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:19:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:19:13,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:19:15,749 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:19:15,750 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-14 23:19:15,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:19:15 BoogieIcfgContainer [2019-10-14 23:19:15,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:19:15,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:19:15,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:19:15,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:19:15,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:19:12" (1/3) ... [2019-10-14 23:19:15,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1455758e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:19:15, skipping insertion in model container [2019-10-14 23:19:15,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:13" (2/3) ... [2019-10-14 23:19:15,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1455758e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:19:15, skipping insertion in model container [2019-10-14 23:19:15,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:19:15" (3/3) ... [2019-10-14 23:19:15,760 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product03.cil.c [2019-10-14 23:19:15,770 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:19:15,779 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:19:15,790 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:19:15,820 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:19:15,820 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:19:15,820 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:19:15,821 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:19:15,821 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:19:15,821 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:19:15,821 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:19:15,821 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:19:15,853 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states. [2019-10-14 23:19:15,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:19:15,881 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:15,882 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:19:15,884 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:15,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:15,890 INFO L82 PathProgramCache]: Analyzing trace with hash 2136153508, now seen corresponding path program 1 times [2019-10-14 23:19:15,899 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:15,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743773403] [2019-10-14 23:19:15,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:15,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:15,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,368 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2019-10-14 23:19:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:17,804 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-14 23:19:17,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743773403] [2019-10-14 23:19:17,805 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:19:17,805 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:19:17,806 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413197248] [2019-10-14 23:19:17,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:19:17,813 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:19:17,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:19:17,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:19:17,830 INFO L87 Difference]: Start difference. First operand 714 states. Second operand 8 states. [2019-10-14 23:19:19,430 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-14 23:19:20,192 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2019-10-14 23:19:21,914 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-14 23:19:32,575 WARN L191 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-14 23:19:38,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:19:38,961 INFO L93 Difference]: Finished difference Result 1454 states and 2546 transitions. [2019-10-14 23:19:38,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:19:38,963 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 135 [2019-10-14 23:19:38,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:19:38,993 INFO L225 Difference]: With dead ends: 1454 [2019-10-14 23:19:38,994 INFO L226 Difference]: Without dead ends: 846 [2019-10-14 23:19:39,009 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:19:39,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2019-10-14 23:19:39,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 566. [2019-10-14 23:19:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-14 23:19:39,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 900 transitions. [2019-10-14 23:19:39,243 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 900 transitions. Word has length 135 [2019-10-14 23:19:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:19:39,244 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 900 transitions. [2019-10-14 23:19:39,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:19:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 900 transitions. [2019-10-14 23:19:39,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-14 23:19:39,253 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:19:39,253 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:19:39,253 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:19:39,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:19:39,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1459337121, now seen corresponding path program 1 times [2019-10-14 23:19:39,254 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:19:39,254 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527180966] [2019-10-14 23:19:39,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:39,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:19:39,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:19:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,085 WARN L191 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2019-10-14 23:19:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,246 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-14 23:19:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:19:40,449 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-14 23:19:40,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527180966] [2019-10-14 23:19:40,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:19:40,450 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:19:40,451 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78085318] [2019-10-14 23:19:40,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:19:40,453 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:19:40,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:19:40,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:19:40,454 INFO L87 Difference]: Start difference. First operand 566 states and 900 transitions. Second operand 8 states. [2019-10-14 23:19:41,853 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-14 23:19:42,629 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2019-10-14 23:19:44,124 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 112