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_spec2_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:21:38,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:21:38,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:21:38,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:21:38,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:21:38,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:21:38,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:21:38,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:21:38,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:21:38,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:21:38,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:21:38,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:21:38,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:21:38,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:21:38,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:21:38,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:21:38,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:21:38,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:21:38,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:21:38,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:21:38,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:21:38,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:21:38,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:21:38,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:21:38,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:21:38,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:21:38,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:21:38,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:21:38,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:21:38,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:21:38,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:21:38,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:21:38,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:21:38,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:21:38,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:21:38,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:21:38,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:21:38,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:21:38,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:21:38,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:21:38,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:21:38,353 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 19:21:38,376 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:21:38,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:21:38,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:21:38,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:21:38,382 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:21:38,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:21:38,383 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:21:38,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:21:38,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:21:38,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:21:38,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:21:38,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:21:38,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:21:38,385 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:21:38,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:21:38,386 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:21:38,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:21:38,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:21:38,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:21:38,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:21:38,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:21:38,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:21:38,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:21:38,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:21:38,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:21:38,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:21:38,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:21:38,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:21:38,391 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:21:38,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:21:38,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:21:38,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:21:38,715 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:21:38,715 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:21:38,716 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product17.cil.c [2019-10-13 19:21:38,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2451c06/63557ac59e6b42cda81c09a8d9a7a7ad/FLAG58c789cfd [2019-10-13 19:21:39,478 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:21:39,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product17.cil.c [2019-10-13 19:21:39,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2451c06/63557ac59e6b42cda81c09a8d9a7a7ad/FLAG58c789cfd [2019-10-13 19:21:39,665 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae2451c06/63557ac59e6b42cda81c09a8d9a7a7ad [2019-10-13 19:21:39,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:21:39,676 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:21:39,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:21:39,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:21:39,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:21:39,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:39" (1/1) ... [2019-10-13 19:21:39,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14543c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:39, skipping insertion in model container [2019-10-13 19:21:39,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:39" (1/1) ... [2019-10-13 19:21:39,691 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:21:39,754 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:21:40,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:21:40,494 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:21:40,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:21:40,677 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:21:40,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40 WrapperNode [2019-10-13 19:21:40,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:21:40,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:21:40,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:21:40,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:21:40,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40" (1/1) ... [2019-10-13 19:21:40,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40" (1/1) ... [2019-10-13 19:21:40,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40" (1/1) ... [2019-10-13 19:21:40,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40" (1/1) ... [2019-10-13 19:21:40,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40" (1/1) ... [2019-10-13 19:21:40,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40" (1/1) ... [2019-10-13 19:21:40,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40" (1/1) ... [2019-10-13 19:21:40,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:21:40,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:21:40,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:21:40,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:21:40,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40" (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 19:21:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:21:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:21:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:21:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 19:21:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 19:21:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 19:21:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 19:21:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 19:21:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 19:21:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 19:21:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 19:21:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:21:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 19:21:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 19:21:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 19:21:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:21:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:21:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:21:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:21:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 19:21:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 19:21:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 19:21:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 19:21:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 19:21:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 19:21:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 19:21:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 19:21:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 19:21:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 19:21:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:21:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 19:21:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 19:21:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 19:21:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:21:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 19:21:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:21:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:21:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:21:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 19:21:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 19:21:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 19:21:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-13 19:21:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 19:21:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 19:21:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 19:21:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 19:21:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 19:21:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 19:21:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 19:21:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 19:21:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 19:21:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 19:21:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 19:21:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 19:21:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 19:21:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 19:21:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 19:21:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 19:21:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 19:21:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 19:21:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:21:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 19:21:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 19:21:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:21:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:21:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-13 19:21:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-13 19:21:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:21:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:21:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:21:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:21:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:21:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:21:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:21:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:21:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:21:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 19:21:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 19:21:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 19:21:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 19:21:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 19:21:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 19:21:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 19:21:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 19:21:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:21:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 19:21:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 19:21:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 19:21:40,982 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:21:40,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:21:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:21:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:21:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:21:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 19:21:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 19:21:40,984 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 19:21:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 19:21:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 19:21:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 19:21:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 19:21:40,985 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 19:21:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 19:21:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 19:21:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 19:21:40,986 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 19:21:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 19:21:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 19:21:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 19:21:40,987 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 19:21:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:21:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 19:21:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 19:21:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 19:21:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:21:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 19:21:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:21:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:21:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-13 19:21:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:21:40,990 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:21:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:21:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:21:40,991 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 19:21:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 19:21:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 19:21:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 19:21:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 19:21:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 19:21:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-13 19:21:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 19:21:40,994 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 19:21:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:21:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 19:21:40,995 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 19:21:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 19:21:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 19:21:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 19:21:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 19:21:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 19:21:40,997 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 19:21:41,001 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 19:21:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-13 19:21:41,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:21:41,003 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 19:21:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:21:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:21:41,011 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:21:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:21:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:21:41,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:21:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:21:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:21:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:21:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:21:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:21:41,013 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:21:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:21:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:21:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:21:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:21:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:21:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:21:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:21:43,415 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:21:43,415 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:21:43,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:43 BoogieIcfgContainer [2019-10-13 19:21:43,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:21:43,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:21:43,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:21:43,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:21:43,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:21:39" (1/3) ... [2019-10-13 19:21:43,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43538316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:43, skipping insertion in model container [2019-10-13 19:21:43,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40" (2/3) ... [2019-10-13 19:21:43,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43538316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:43, skipping insertion in model container [2019-10-13 19:21:43,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:43" (3/3) ... [2019-10-13 19:21:43,425 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product17.cil.c [2019-10-13 19:21:43,435 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:21:43,445 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:21:43,457 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:21:43,490 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:21:43,491 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:21:43,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:21:43,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:21:43,491 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:21:43,491 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:21:43,491 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:21:43,492 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:21:43,527 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states. [2019-10-13 19:21:43,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-13 19:21:43,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:21:43,551 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:21:43,553 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:21:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:21:43,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1835526368, now seen corresponding path program 1 times [2019-10-13 19:21:43,569 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:21:43,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332466718] [2019-10-13 19:21:43,570 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:21:43,570 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:21:43,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:21:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,060 WARN L191 SmtUtils]: Spent 939.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:21:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,404 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-13 19:21:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:21:45,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332466718] [2019-10-13 19:21:45,805 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:21:45,805 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:21:45,806 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544088540] [2019-10-13 19:21:45,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:21:45,811 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:21:45,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:21:45,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:21:45,827 INFO L87 Difference]: Start difference. First operand 742 states. Second operand 10 states. [2019-10-13 19:21:47,648 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-13 19:21:48,631 WARN L191 SmtUtils]: Spent 941.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2019-10-13 19:21:50,249 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-13 19:21:51,359 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-13 19:22:08,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:22:08,452 INFO L93 Difference]: Finished difference Result 1703 states and 3024 transitions. [2019-10-13 19:22:08,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 19:22:08,459 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 107 [2019-10-13 19:22:08,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:22:08,492 INFO L225 Difference]: With dead ends: 1703 [2019-10-13 19:22:08,492 INFO L226 Difference]: Without dead ends: 1110 [2019-10-13 19:22:08,504 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2019-10-13 19:22:08,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2019-10-13 19:22:08,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 582. [2019-10-13 19:22:08,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2019-10-13 19:22:08,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 937 transitions. [2019-10-13 19:22:08,819 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 937 transitions. Word has length 107 [2019-10-13 19:22:08,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:22:08,819 INFO L462 AbstractCegarLoop]: Abstraction has 582 states and 937 transitions. [2019-10-13 19:22:08,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:22:08,820 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 937 transitions. [2019-10-13 19:22:08,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-13 19:22:08,828 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:22:08,828 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:22:08,829 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:22:08,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:22:08,829 INFO L82 PathProgramCache]: Analyzing trace with hash 443776321, now seen corresponding path program 1 times [2019-10-13 19:22:08,829 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:22:08,830 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459837919] [2019-10-13 19:22:08,830 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:22:08,830 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:22:08,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:22:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:09,757 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-13 19:22:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,051 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-13 19:22:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:22:10,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459837919] [2019-10-13 19:22:10,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:22:10,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:22:10,488 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101958141] [2019-10-13 19:22:10,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:22:10,506 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:22:10,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:22:10,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:22:10,507 INFO L87 Difference]: Start difference. First operand 582 states and 937 transitions. Second operand 13 states. [2019-10-13 19:22:13,127 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-13 19:22:14,034 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2019-10-13 19:22:16,404 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-13 19:22:17,305 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-13 19:22:18,158 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-13 19:22:18,363 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-13 19:22:19,023 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 127