/usr/bin/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_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:29:22,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:29:22,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:29:22,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:29:22,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:29:22,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:29:22,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:29:22,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:29:22,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:29:22,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:29:22,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:29:22,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:29:22,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:29:22,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:29:22,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:29:22,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:29:22,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:29:22,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:29:22,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:29:22,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:29:22,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:29:22,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:29:22,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:29:22,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:29:22,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:29:22,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:29:22,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:29:22,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:29:22,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:29:22,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:29:22,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:29:22,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:29:22,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:29:22,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:29:22,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:29:22,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:29:22,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:29:22,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:29:22,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:29:22,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:29:22,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:29:22,654 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 [2019-11-06 21:29:22,676 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:29:22,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:29:22,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:29:22,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:29:22,680 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:29:22,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:29:22,683 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:29:22,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:29:22,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:29:22,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:29:22,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:29:22,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:29:22,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:29:22,685 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:29:22,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:29:22,685 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:29:22,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:29:22,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:29:22,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:29:22,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:29:22,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:29:22,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:29:22,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:29:22,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:29:22,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:29:22,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:29:22,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:29:22,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:29:22,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:29:22,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:29:22,975 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:29:22,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:29:22,981 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:29:22,982 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:29:22,982 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product19.cil.c [2019-11-06 21:29:23,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc05aa85d/6e54117ca9fc46038575491327bb5e0a/FLAG636e22536 [2019-11-06 21:29:23,671 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:29:23,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product19.cil.c [2019-11-06 21:29:23,694 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc05aa85d/6e54117ca9fc46038575491327bb5e0a/FLAG636e22536 [2019-11-06 21:29:23,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc05aa85d/6e54117ca9fc46038575491327bb5e0a [2019-11-06 21:29:23,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:29:23,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:29:23,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:29:23,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:29:23,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:29:23,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:29:23" (1/1) ... [2019-11-06 21:29:23,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ea409b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:23, skipping insertion in model container [2019-11-06 21:29:23,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:29:23" (1/1) ... [2019-11-06 21:29:23,866 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:29:23,958 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:29:24,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:29:24,710 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:29:24,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:29:24,925 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:29:24,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24 WrapperNode [2019-11-06 21:29:24,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:29:24,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:29:24,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:29:24,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:29:24,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24" (1/1) ... [2019-11-06 21:29:24,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24" (1/1) ... [2019-11-06 21:29:24,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24" (1/1) ... [2019-11-06 21:29:24,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24" (1/1) ... [2019-11-06 21:29:25,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24" (1/1) ... [2019-11-06 21:29:25,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24" (1/1) ... [2019-11-06 21:29:25,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24" (1/1) ... [2019-11-06 21:29:25,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:29:25,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:29:25,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:29:25,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:29:25,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24" (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 [2019-11-06 21:29:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:29:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:29:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:29:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-11-06 21:29:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-11-06 21:29:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-11-06 21:29:25,200 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-11-06 21:29:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-11-06 21:29:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-11-06 21:29:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-11-06 21:29:25,201 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-11-06 21:29:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-11-06 21:29:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-11-06 21:29:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-11-06 21:29:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-11-06 21:29:25,202 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-11-06 21:29:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-11-06 21:29:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-11-06 21:29:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-11-06 21:29:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-11-06 21:29:25,203 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-11-06 21:29:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-11-06 21:29:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-11-06 21:29:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-11-06 21:29:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-11-06 21:29:25,204 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-11-06 21:29:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-11-06 21:29:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 21:29:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-11-06 21:29:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-11-06 21:29:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-11-06 21:29:25,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-11-06 21:29:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-11-06 21:29:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-11-06 21:29:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2019-11-06 21:29:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:29:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:29:25,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:29:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:29:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:29:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:29:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:29:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:29:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:29:25,207 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:29:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:29:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-11-06 21:29:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-11-06 21:29:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-11-06 21:29:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:29:25,208 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-11-06 21:29:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-11-06 21:29:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-11-06 21:29:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-11-06 21:29:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-11-06 21:29:25,209 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-11-06 21:29:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-11-06 21:29:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-11-06 21:29:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 21:29:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-11-06 21:29:25,210 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-11-06 21:29:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-11-06 21:29:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 21:29:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-11-06 21:29:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:29:25,211 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 21:29:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:29:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-11-06 21:29:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-11-06 21:29:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-11-06 21:29:25,212 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-11-06 21:29:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-11-06 21:29:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-11-06 21:29:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-11-06 21:29:25,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-11-06 21:29:25,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:29:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:29:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:29:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-11-06 21:29:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-11-06 21:29:25,214 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-11-06 21:29:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-11-06 21:29:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-11-06 21:29:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-11-06 21:29:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-11-06 21:29:25,215 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-11-06 21:29:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-11-06 21:29:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 21:29:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-11-06 21:29:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-11-06 21:29:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-11-06 21:29:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-11-06 21:29:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-11-06 21:29:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-11-06 21:29:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-11-06 21:29:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-11-06 21:29:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-11-06 21:29:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-11-06 21:29:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-11-06 21:29:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-11-06 21:29:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-11-06 21:29:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-11-06 21:29:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-11-06 21:29:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-11-06 21:29:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-11-06 21:29:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-11-06 21:29:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-11-06 21:29:25,219 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-11-06 21:29:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-11-06 21:29:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-11-06 21:29:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-11-06 21:29:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-11-06 21:29:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-11-06 21:29:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-11-06 21:29:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2019-11-06 21:29:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:29:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-11-06 21:29:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-11-06 21:29:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-11-06 21:29:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-11-06 21:29:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-11-06 21:29:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:29:25,223 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-11-06 21:29:25,223 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-11-06 21:29:25,223 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-11-06 21:29:25,223 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 21:29:25,224 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:29:25,224 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:29:25,224 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:29:25,224 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:29:25,224 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:29:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:29:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:29:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:29:25,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:29:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:29:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:29:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:29:25,226 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:29:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:29:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:29:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:29:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:29:25,227 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:29:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:29:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:29:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:29:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 21:29:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-11-06 21:29:25,228 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-11-06 21:29:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-11-06 21:29:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-11-06 21:29:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-11-06 21:29:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-11-06 21:29:25,229 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-11-06 21:29:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-11-06 21:29:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 21:29:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-11-06 21:29:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:29:25,230 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 21:29:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:29:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-11-06 21:29:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:29:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:29:25,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:29:27,477 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:29:27,478 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-06 21:29:27,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:29:27 BoogieIcfgContainer [2019-11-06 21:29:27,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:29:27,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:29:27,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:29:27,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:29:27,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:29:23" (1/3) ... [2019-11-06 21:29:27,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad7ebad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:29:27, skipping insertion in model container [2019-11-06 21:29:27,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:29:24" (2/3) ... [2019-11-06 21:29:27,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ad7ebad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:29:27, skipping insertion in model container [2019-11-06 21:29:27,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:29:27" (3/3) ... [2019-11-06 21:29:27,487 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product19.cil.c [2019-11-06 21:29:27,497 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:29:27,506 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:29:27,517 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:29:27,547 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:29:27,547 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:29:27,547 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:29:27,547 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:29:27,548 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:29:27,548 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:29:27,548 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:29:27,548 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:29:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states. [2019-11-06 21:29:27,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-06 21:29:27,632 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:29:27,633 INFO L410 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] [2019-11-06 21:29:27,636 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:29:27,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:29:27,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1411507135, now seen corresponding path program 1 times [2019-11-06 21:29:27,651 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:29:27,652 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782188439] [2019-11-06 21:29:27,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:29:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,124 WARN L191 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-11-06 21:29:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-06 21:29:29,587 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782188439] [2019-11-06 21:29:29,588 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:29:29,588 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 21:29:29,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510460082] [2019-11-06 21:29:29,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:29:29,597 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:29:29,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:29:29,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:29:29,616 INFO L87 Difference]: Start difference. First operand 735 states. Second operand 8 states. [2019-11-06 21:29:31,396 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2019-11-06 21:29:32,196 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 381 [2019-11-06 21:29:33,977 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-11-06 21:29:44,678 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2019-11-06 21:29:51,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:29:51,002 INFO L93 Difference]: Finished difference Result 1500 states and 2580 transitions. [2019-11-06 21:29:51,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-06 21:29:51,004 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 135 [2019-11-06 21:29:51,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:29:51,036 INFO L225 Difference]: With dead ends: 1500 [2019-11-06 21:29:51,036 INFO L226 Difference]: Without dead ends: 871 [2019-11-06 21:29:51,048 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2019-11-06 21:29:51,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2019-11-06 21:29:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 587. [2019-11-06 21:29:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-11-06 21:29:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 928 transitions. [2019-11-06 21:29:51,345 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 928 transitions. Word has length 135 [2019-11-06 21:29:51,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:29:51,346 INFO L462 AbstractCegarLoop]: Abstraction has 587 states and 928 transitions. [2019-11-06 21:29:51,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 21:29:51,347 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 928 transitions. [2019-11-06 21:29:51,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-06 21:29:51,354 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:29:51,354 INFO L410 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] [2019-11-06 21:29:51,354 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:29:51,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:29:51,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1349279833, now seen corresponding path program 1 times [2019-11-06 21:29:51,355 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:29:51,355 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053042174] [2019-11-06 21:29:51,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:29:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,293 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2019-11-06 21:29:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:29:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-06 21:29:52,595 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053042174] [2019-11-06 21:29:52,596 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:29:52,596 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 21:29:52,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806408321] [2019-11-06 21:29:52,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 21:29:52,601 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:29:52,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 21:29:52,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-06 21:29:52,602 INFO L87 Difference]: Start difference. First operand 587 states and 928 transitions. Second operand 8 states. [2019-11-06 21:29:54,524 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2019-11-06 21:29:55,287 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 381