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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:07:49,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:07:49,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:07:49,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:07:49,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:07:49,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:07:49,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:07:49,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:07:49,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:07:49,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:07:49,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:07:49,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:07:49,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:07:49,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:07:49,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:07:49,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:07:49,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:07:49,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:07:49,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:07:49,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:07:49,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:07:49,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:07:49,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:07:49,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:07:49,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:07:49,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:07:49,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:07:49,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:07:49,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:07:49,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:07:49,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:07:49,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:07:49,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:07:49,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:07:49,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:07:49,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:07:49,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:07:49,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:07:49,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:07:49,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:07:49,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:07:49,768 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 [2019-10-15 03:07:49,785 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:07:49,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:07:49,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:07:49,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:07:49,789 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:07:49,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:07:49,790 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:07:49,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:07:49,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:07:49,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:07:49,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:07:49,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:07:49,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:07:49,791 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:07:49,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:07:49,791 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:07:49,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:07:49,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:07:49,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:07:49,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:07:49,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:07:49,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:07:49,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:07:49,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:07:49,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:07:49,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:07:49,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:07:49,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:07:49,795 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:07:50,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:07:50,132 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:07:50,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:07:50,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:07:50,138 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:07:50,139 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product03.cil.c [2019-10-15 03:07:50,238 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4ab99736/94f4ff60bf094b659dc00a0a791d8c95/FLAGcae6c730a [2019-10-15 03:07:51,084 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:07:51,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product03.cil.c [2019-10-15 03:07:51,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4ab99736/94f4ff60bf094b659dc00a0a791d8c95/FLAGcae6c730a [2019-10-15 03:07:51,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4ab99736/94f4ff60bf094b659dc00a0a791d8c95 [2019-10-15 03:07:51,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:07:51,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:07:51,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:51,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:07:51,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:07:51,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:51" (1/1) ... [2019-10-15 03:07:51,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ffa0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:51, skipping insertion in model container [2019-10-15 03:07:51,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:51" (1/1) ... [2019-10-15 03:07:51,242 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:07:51,324 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:07:52,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:52,172 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:07:52,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:52,409 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:07:52,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52 WrapperNode [2019-10-15 03:07:52,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:52,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:07:52,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:07:52,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:07:52,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52" (1/1) ... [2019-10-15 03:07:52,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52" (1/1) ... [2019-10-15 03:07:52,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52" (1/1) ... [2019-10-15 03:07:52,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52" (1/1) ... [2019-10-15 03:07:52,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52" (1/1) ... [2019-10-15 03:07:52,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52" (1/1) ... [2019-10-15 03:07:52,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52" (1/1) ... [2019-10-15 03:07:52,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:07:52,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:07:52,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:07:52,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:07:52,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52" (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 [2019-10-15 03:07:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:07:52,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:07:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:07:52,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:07:52,789 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:07:52,789 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:07:52,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:07:52,790 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:07:52,790 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:07:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:07:52,791 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:07:52,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:07:52,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:07:52,792 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:07:52,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:52,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:52,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:52,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:07:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:07:52,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:07:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:07:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:07:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:07:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:07:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:07:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:07:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:07:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:07:52,798 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:07:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:07:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:07:52,799 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:07:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:07:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:07:52,800 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:07:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:07:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:07:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:07:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:07:52,801 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:07:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:07:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:07:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:07:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:07:52,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:07:52,803 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:07:52,803 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:07:52,803 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:07:52,803 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:07:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:07:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:07:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:07:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:07:52,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:07:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:07:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:07:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__base [2019-10-15 03:07:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:07:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:07:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:07:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-15 03:07:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:07:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:07:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:07:52,807 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:07:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:07:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-15 03:07:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-15 03:07:52,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:07:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:07:52,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-15 03:07:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-15 03:07:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:07:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:07:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:07:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:07:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:07:52,812 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:07:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:07:52,813 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:07:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:07:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:07:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:07:52,814 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:07:52,815 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:07:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:07:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:07:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:07:52,816 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:07:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:07:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:07:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:07:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:07:52,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:07:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:07:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:07:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:07:52,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:07:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:07:52,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:07:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:07:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:07:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:07:52,820 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:07:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:07:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:07:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:07:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:07:52,821 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:07:52,822 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:07:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:07:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:07:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:07:52,823 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:07:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:07:52,824 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:07:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:07:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:07:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:07:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:07:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:07:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:07:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:07:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:07:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:07:52,829 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:07:52,829 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:07:52,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:07:52,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-15 03:07:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:07:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:07:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:07:52,834 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:07:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:07:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:07:52,835 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:07:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:07:52,836 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:07:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:07:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-15 03:07:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-15 03:07:52,846 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:07:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:07:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:07:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:07:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:07:52,847 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:07:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__base [2019-10-15 03:07:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:07:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:07:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-15 03:07:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:52,848 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:07:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:07:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-15 03:07:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:07:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:07:52,849 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:07:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:07:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:07:52,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:07:59,208 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:07:59,209 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:07:59,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:59 BoogieIcfgContainer [2019-10-15 03:07:59,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:07:59,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:07:59,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:07:59,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:07:59,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:07:51" (1/3) ... [2019-10-15 03:07:59,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168403f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:59, skipping insertion in model container [2019-10-15 03:07:59,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:52" (2/3) ... [2019-10-15 03:07:59,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168403f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:59, skipping insertion in model container [2019-10-15 03:07:59,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:59" (3/3) ... [2019-10-15 03:07:59,220 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product03.cil.c [2019-10-15 03:07:59,232 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:07:59,246 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:07:59,259 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:07:59,304 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:07:59,304 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:07:59,304 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:07:59,304 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:07:59,305 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:07:59,305 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:07:59,305 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:07:59,305 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:07:59,342 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states. [2019-10-15 03:07:59,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-15 03:07:59,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:59,371 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:59,373 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:59,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:59,381 INFO L82 PathProgramCache]: Analyzing trace with hash 701582024, now seen corresponding path program 1 times [2019-10-15 03:07:59,390 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:59,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430480638] [2019-10-15 03:07:59,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:59,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:59,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:08:00,240 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430480638] [2019-10-15 03:08:00,242 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:00,242 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:08:00,244 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563482460] [2019-10-15 03:08:00,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:08:00,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:00,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:08:00,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:08:00,269 INFO L87 Difference]: Start difference. First operand 557 states. Second operand 2 states. [2019-10-15 03:08:00,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:00,341 INFO L93 Difference]: Finished difference Result 460 states and 690 transitions. [2019-10-15 03:08:00,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:08:00,343 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-10-15 03:08:00,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:00,369 INFO L225 Difference]: With dead ends: 460 [2019-10-15 03:08:00,369 INFO L226 Difference]: Without dead ends: 426 [2019-10-15 03:08:00,374 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:08:00,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2019-10-15 03:08:00,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2019-10-15 03:08:00,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-10-15 03:08:00,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 639 transitions. [2019-10-15 03:08:00,485 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 639 transitions. Word has length 112 [2019-10-15 03:08:00,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:00,488 INFO L462 AbstractCegarLoop]: Abstraction has 426 states and 639 transitions. [2019-10-15 03:08:00,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:08:00,489 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 639 transitions. [2019-10-15 03:08:00,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-15 03:08:00,496 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:00,496 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:00,497 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:00,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:00,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1004921316, now seen corresponding path program 1 times [2019-10-15 03:08:00,497 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:00,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390808248] [2019-10-15 03:08:00,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:00,501 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:00,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:08:00,797 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390808248] [2019-10-15 03:08:00,797 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:00,798 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:08:00,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839269290] [2019-10-15 03:08:00,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:08:00,800 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:00,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:08:00,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:00,801 INFO L87 Difference]: Start difference. First operand 426 states and 639 transitions. Second operand 7 states. [2019-10-15 03:08:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:05,507 INFO L93 Difference]: Finished difference Result 1205 states and 1854 transitions. [2019-10-15 03:08:05,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:08:05,507 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-15 03:08:05,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:05,518 INFO L225 Difference]: With dead ends: 1205 [2019-10-15 03:08:05,518 INFO L226 Difference]: Without dead ends: 821 [2019-10-15 03:08:05,525 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:08:05,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2019-10-15 03:08:05,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 796. [2019-10-15 03:08:05,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2019-10-15 03:08:05,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1221 transitions. [2019-10-15 03:08:05,609 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1221 transitions. Word has length 113 [2019-10-15 03:08:05,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:05,609 INFO L462 AbstractCegarLoop]: Abstraction has 796 states and 1221 transitions. [2019-10-15 03:08:05,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:08:05,610 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1221 transitions. [2019-10-15 03:08:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-15 03:08:05,614 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:05,615 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:05,615 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:05,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:05,615 INFO L82 PathProgramCache]: Analyzing trace with hash 262416038, now seen corresponding path program 1 times [2019-10-15 03:08:05,616 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:05,616 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212751053] [2019-10-15 03:08:05,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:05,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:05,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:08:05,819 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212751053] [2019-10-15 03:08:05,819 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:05,820 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:08:05,820 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622679131] [2019-10-15 03:08:05,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:08:05,822 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:05,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:08:05,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:08:05,823 INFO L87 Difference]: Start difference. First operand 796 states and 1221 transitions. Second operand 4 states. [2019-10-15 03:08:08,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:08,179 INFO L93 Difference]: Finished difference Result 2382 states and 3748 transitions. [2019-10-15 03:08:08,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:08:08,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-10-15 03:08:08,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:08,203 INFO L225 Difference]: With dead ends: 2382 [2019-10-15 03:08:08,203 INFO L226 Difference]: Without dead ends: 1628 [2019-10-15 03:08:08,211 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:08:08,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2019-10-15 03:08:08,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1530. [2019-10-15 03:08:08,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1530 states. [2019-10-15 03:08:08,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 2393 transitions. [2019-10-15 03:08:08,400 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 2393 transitions. Word has length 117 [2019-10-15 03:08:08,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:08,404 INFO L462 AbstractCegarLoop]: Abstraction has 1530 states and 2393 transitions. [2019-10-15 03:08:08,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:08:08,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 2393 transitions. [2019-10-15 03:08:08,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-15 03:08:08,414 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:08,415 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:08,415 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:08,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:08,416 INFO L82 PathProgramCache]: Analyzing trace with hash -456335281, now seen corresponding path program 1 times [2019-10-15 03:08:08,416 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:08,416 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129949402] [2019-10-15 03:08:08,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:08,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:08,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:08,851 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:08:08,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129949402] [2019-10-15 03:08:08,855 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:08,855 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:08:08,855 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193879629] [2019-10-15 03:08:08,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:08:08,856 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:08,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:08:08,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:08:08,857 INFO L87 Difference]: Start difference. First operand 1530 states and 2393 transitions. Second operand 4 states. [2019-10-15 03:08:12,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:12,167 INFO L93 Difference]: Finished difference Result 4531 states and 7246 transitions. [2019-10-15 03:08:12,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:08:12,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-10-15 03:08:12,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:12,280 INFO L225 Difference]: With dead ends: 4531 [2019-10-15 03:08:12,280 INFO L226 Difference]: Without dead ends: 3044 [2019-10-15 03:08:12,289 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:08:12,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2019-10-15 03:08:12,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2923. [2019-10-15 03:08:12,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2923 states. [2019-10-15 03:08:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 4638 transitions. [2019-10-15 03:08:12,546 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 4638 transitions. Word has length 118 [2019-10-15 03:08:12,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:12,547 INFO L462 AbstractCegarLoop]: Abstraction has 2923 states and 4638 transitions. [2019-10-15 03:08:12,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:08:12,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 4638 transitions. [2019-10-15 03:08:12,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-15 03:08:12,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:12,551 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:12,551 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:12,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:12,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1262785784, now seen corresponding path program 1 times [2019-10-15 03:08:12,552 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:12,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10187366] [2019-10-15 03:08:12,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:12,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:12,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:12,723 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:08:12,723 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10187366] [2019-10-15 03:08:12,723 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:12,724 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:08:12,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304267148] [2019-10-15 03:08:12,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:08:12,725 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:12,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:08:12,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:08:12,725 INFO L87 Difference]: Start difference. First operand 2923 states and 4638 transitions. Second operand 4 states. [2019-10-15 03:08:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:15,395 INFO L93 Difference]: Finished difference Result 8762 states and 14318 transitions. [2019-10-15 03:08:15,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:08:15,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-10-15 03:08:15,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:15,450 INFO L225 Difference]: With dead ends: 8762 [2019-10-15 03:08:15,450 INFO L226 Difference]: Without dead ends: 5884 [2019-10-15 03:08:15,469 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:08:15,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2019-10-15 03:08:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5718. [2019-10-15 03:08:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5718 states. [2019-10-15 03:08:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5718 states to 5718 states and 9244 transitions. [2019-10-15 03:08:16,029 INFO L78 Accepts]: Start accepts. Automaton has 5718 states and 9244 transitions. Word has length 119 [2019-10-15 03:08:16,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:16,030 INFO L462 AbstractCegarLoop]: Abstraction has 5718 states and 9244 transitions. [2019-10-15 03:08:16,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:08:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5718 states and 9244 transitions. [2019-10-15 03:08:16,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-15 03:08:16,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:16,034 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:16,042 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:16,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:16,043 INFO L82 PathProgramCache]: Analyzing trace with hash -492943695, now seen corresponding path program 1 times [2019-10-15 03:08:16,043 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:16,043 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445878973] [2019-10-15 03:08:16,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:16,044 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:16,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:16,210 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:08:16,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445878973] [2019-10-15 03:08:16,214 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:16,214 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:08:16,214 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743493560] [2019-10-15 03:08:16,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:08:16,215 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:16,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:08:16,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:08:16,216 INFO L87 Difference]: Start difference. First operand 5718 states and 9244 transitions. Second operand 4 states. [2019-10-15 03:08:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:18,532 INFO L93 Difference]: Finished difference Result 17249 states and 29193 transitions. [2019-10-15 03:08:18,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:08:18,532 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-10-15 03:08:18,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:18,662 INFO L225 Difference]: With dead ends: 17249 [2019-10-15 03:08:18,663 INFO L226 Difference]: Without dead ends: 11580 [2019-10-15 03:08:18,697 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:08:18,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11580 states. [2019-10-15 03:08:19,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11580 to 11325. [2019-10-15 03:08:19,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11325 states. [2019-10-15 03:08:19,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11325 states to 11325 states and 18866 transitions. [2019-10-15 03:08:19,725 INFO L78 Accepts]: Start accepts. Automaton has 11325 states and 18866 transitions. Word has length 120 [2019-10-15 03:08:19,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:19,726 INFO L462 AbstractCegarLoop]: Abstraction has 11325 states and 18866 transitions. [2019-10-15 03:08:19,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:08:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 11325 states and 18866 transitions. [2019-10-15 03:08:19,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 03:08:19,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:19,731 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:19,731 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:19,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:19,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1897328490, now seen corresponding path program 1 times [2019-10-15 03:08:19,732 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:19,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043005564] [2019-10-15 03:08:19,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:19,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:19,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:19,933 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:08:19,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043005564] [2019-10-15 03:08:19,934 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:19,934 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:08:19,934 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485700463] [2019-10-15 03:08:19,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:08:19,935 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:19,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:08:19,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:08:19,935 INFO L87 Difference]: Start difference. First operand 11325 states and 18866 transitions. Second operand 4 states. [2019-10-15 03:08:23,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:23,097 INFO L93 Difference]: Finished difference Result 34300 states and 61585 transitions. [2019-10-15 03:08:23,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:08:23,099 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-15 03:08:23,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:23,284 INFO L225 Difference]: With dead ends: 34300 [2019-10-15 03:08:23,285 INFO L226 Difference]: Without dead ends: 23020 [2019-10-15 03:08:23,357 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:08:23,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23020 states.