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_spec9_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:05:25,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:05:25,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:05:25,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:05:25,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:05:25,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:05:25,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:05:25,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:05:25,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:05:25,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:05:25,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:05:25,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:05:25,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:05:25,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:05:25,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:05:25,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:05:25,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:05:25,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:05:25,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:05:25,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:05:25,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:05:25,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:05:25,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:05:25,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:05:25,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:05:25,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:05:25,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:05:25,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:05:25,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:05:25,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:05:25,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:05:25,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:05:25,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:05:25,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:05:25,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:05:25,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:05:25,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:05:25,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:05:25,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:05:25,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:05:25,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:05:25,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:05:25,905 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:05:25,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:05:25,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:05:25,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:05:25,908 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:05:25,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:05:25,908 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:05:25,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:05:25,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:05:25,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:05:25,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:05:25,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:05:25,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:05:25,910 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:05:25,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:05:25,910 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:05:25,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:05:25,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:05:25,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:05:25,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:05:25,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:05:25,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:05:25,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:05:25,912 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:05:25,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:05:25,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:05:25,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:05:25,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:05:25,913 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 [2019-10-13 23:05:26,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:05:26,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:05:26,320 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:05:26,322 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:05:26,322 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:05:26,323 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product29.cil.c [2019-10-13 23:05:26,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9187d302d/cd7e10e621284319ac03757f48143276/FLAG1034bfb97 [2019-10-13 23:05:27,085 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:05:27,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product29.cil.c [2019-10-13 23:05:27,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9187d302d/cd7e10e621284319ac03757f48143276/FLAG1034bfb97 [2019-10-13 23:05:27,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9187d302d/cd7e10e621284319ac03757f48143276 [2019-10-13 23:05:27,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:05:27,267 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:05:27,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:05:27,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:05:27,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:05:27,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:27" (1/1) ... [2019-10-13 23:05:27,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8f6405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:27, skipping insertion in model container [2019-10-13 23:05:27,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:05:27" (1/1) ... [2019-10-13 23:05:27,284 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:05:27,381 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:05:28,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:05:28,217 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:05:28,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:05:28,458 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:05:28,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28 WrapperNode [2019-10-13 23:05:28,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:05:28,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:05:28,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:05:28,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:05:28,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28" (1/1) ... [2019-10-13 23:05:28,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28" (1/1) ... [2019-10-13 23:05:28,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28" (1/1) ... [2019-10-13 23:05:28,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28" (1/1) ... [2019-10-13 23:05:28,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28" (1/1) ... [2019-10-13 23:05:28,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28" (1/1) ... [2019-10-13 23:05:28,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28" (1/1) ... [2019-10-13 23:05:28,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:05:28,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:05:28,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:05:28,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:05:28,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:05:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:05:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:05:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:05:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:05:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:05:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-13 23:05:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-13 23:05:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-13 23:05:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-13 23:05:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 23:05:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 23:05:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 23:05:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 23:05:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 23:05:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 23:05:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 23:05:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 23:05:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 23:05:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 23:05:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 23:05:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 23:05:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 23:05:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 23:05:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 23:05:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 23:05:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:05:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 23:05:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 23:05:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 23:05:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:05:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 23:05:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:05:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:05:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:05:28,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 23:05:28,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 23:05:28,778 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:05:28,778 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:05:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:05:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:05:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:05:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:05:28,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:05:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:05:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:05:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:05:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 23:05:28,780 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 23:05:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 23:05:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-13 23:05:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 23:05:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 23:05:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-13 23:05:28,781 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 23:05:28,782 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 23:05:28,782 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 23:05:28,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 23:05:28,782 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 23:05:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 23:05:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 23:05:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 23:05:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 23:05:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 23:05:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-13 23:05:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 23:05:28,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 23:05:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 23:05:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-13 23:05:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 23:05:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 23:05:28,785 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 23:05:28,786 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:05:28,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 23:05:28,787 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 23:05:28,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 23:05:28,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 23:05:28,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 23:05:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:05:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:05:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 23:05:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:05:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:05:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:05:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 23:05:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 23:05:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 23:05:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-13 23:05:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-13 23:05:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-13 23:05:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-13 23:05:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 23:05:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 23:05:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 23:05:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 23:05:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 23:05:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 23:05:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 23:05:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 23:05:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 23:05:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 23:05:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 23:05:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 23:05:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 23:05:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 23:05:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 23:05:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 23:05:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:05:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 23:05:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 23:05:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 23:05:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 23:05:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 23:05:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 23:05:28,795 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 23:05:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 23:05:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:05:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 23:05:28,796 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:05:28,797 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:05:28,797 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:05:28,797 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:05:28,801 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:05:28,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:05:28,801 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 23:05:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 23:05:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 23:05:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:05:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:05:28,803 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:05:28,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:05:28,804 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:05:28,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:05:28,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:05:28,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:05:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:05:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:05:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:05:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:05:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:05:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:05:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:05:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:05:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:05:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:05:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:05:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 23:05:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 23:05:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 23:05:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 23:05:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 23:05:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-13 23:05:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 23:05:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-13 23:05:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 23:05:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 23:05:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 23:05:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 23:05:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 23:05:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-13 23:05:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 23:05:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 23:05:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-13 23:05:28,813 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 23:05:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 23:05:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 23:05:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 23:05:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:05:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:05:28,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:05:34,005 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:05:34,005 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 23:05:34,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:05:34 BoogieIcfgContainer [2019-10-13 23:05:34,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:05:34,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:05:34,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:05:34,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:05:34,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:05:27" (1/3) ... [2019-10-13 23:05:34,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d44578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:05:34, skipping insertion in model container [2019-10-13 23:05:34,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:05:28" (2/3) ... [2019-10-13 23:05:34,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d44578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:05:34, skipping insertion in model container [2019-10-13 23:05:34,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:05:34" (3/3) ... [2019-10-13 23:05:34,016 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product29.cil.c [2019-10-13 23:05:34,026 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:05:34,036 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:05:34,048 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:05:34,078 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:05:34,078 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:05:34,078 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:05:34,078 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:05:34,078 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:05:34,079 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:05:34,079 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:05:34,079 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:05:34,111 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states. [2019-10-13 23:05:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-13 23:05:34,134 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:34,135 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:05:34,137 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:34,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1755162486, now seen corresponding path program 1 times [2019-10-13 23:05:34,153 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:34,153 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932924859] [2019-10-13 23:05:34,153 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:34,153 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:34,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:35,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:05:35,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932924859] [2019-10-13 23:05:35,047 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:35,047 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:05:35,047 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373925821] [2019-10-13 23:05:35,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:05:35,055 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:35,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:05:35,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:05:35,073 INFO L87 Difference]: Start difference. First operand 565 states. Second operand 9 states. [2019-10-13 23:05:40,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:40,591 INFO L93 Difference]: Finished difference Result 1388 states and 2117 transitions. [2019-10-13 23:05:40,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-13 23:05:40,593 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2019-10-13 23:05:40,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:40,625 INFO L225 Difference]: With dead ends: 1388 [2019-10-13 23:05:40,626 INFO L226 Difference]: Without dead ends: 971 [2019-10-13 23:05:40,643 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2019-10-13 23:05:40,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2019-10-13 23:05:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 939. [2019-10-13 23:05:40,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2019-10-13 23:05:40,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1428 transitions. [2019-10-13 23:05:40,879 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1428 transitions. Word has length 106 [2019-10-13 23:05:40,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:40,881 INFO L462 AbstractCegarLoop]: Abstraction has 939 states and 1428 transitions. [2019-10-13 23:05:40,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:05:40,881 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1428 transitions. [2019-10-13 23:05:40,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-13 23:05:40,898 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:40,899 INFO L380 BasicCegarLoop]: trace histogram [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, 1] [2019-10-13 23:05:40,900 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:40,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:40,901 INFO L82 PathProgramCache]: Analyzing trace with hash -536835171, now seen corresponding path program 1 times [2019-10-13 23:05:40,901 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:40,901 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092842064] [2019-10-13 23:05:40,902 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:40,902 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:40,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:05:41,230 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092842064] [2019-10-13 23:05:41,230 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:41,230 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:05:41,230 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905354738] [2019-10-13 23:05:41,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:05:41,240 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:41,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:05:41,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:41,241 INFO L87 Difference]: Start difference. First operand 939 states and 1428 transitions. Second operand 7 states. [2019-10-13 23:05:41,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:41,352 INFO L93 Difference]: Finished difference Result 1503 states and 2301 transitions. [2019-10-13 23:05:41,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:05:41,353 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2019-10-13 23:05:41,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:41,365 INFO L225 Difference]: With dead ends: 1503 [2019-10-13 23:05:41,365 INFO L226 Difference]: Without dead ends: 976 [2019-10-13 23:05:41,369 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:41,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2019-10-13 23:05:41,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 960. [2019-10-13 23:05:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2019-10-13 23:05:41,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1458 transitions. [2019-10-13 23:05:41,459 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1458 transitions. Word has length 111 [2019-10-13 23:05:41,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:41,460 INFO L462 AbstractCegarLoop]: Abstraction has 960 states and 1458 transitions. [2019-10-13 23:05:41,460 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:05:41,461 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1458 transitions. [2019-10-13 23:05:41,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 23:05:41,464 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:41,464 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1] [2019-10-13 23:05:41,465 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:41,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:41,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1911377751, now seen corresponding path program 1 times [2019-10-13 23:05:41,465 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:41,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669998686] [2019-10-13 23:05:41,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:41,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:41,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:05:41,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669998686] [2019-10-13 23:05:41,838 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:41,838 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:05:41,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220731096] [2019-10-13 23:05:41,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:05:41,842 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:41,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:05:41,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:41,843 INFO L87 Difference]: Start difference. First operand 960 states and 1458 transitions. Second operand 7 states. [2019-10-13 23:05:41,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:41,956 INFO L93 Difference]: Finished difference Result 1532 states and 2339 transitions. [2019-10-13 23:05:41,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:05:41,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2019-10-13 23:05:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:41,965 INFO L225 Difference]: With dead ends: 1532 [2019-10-13 23:05:41,965 INFO L226 Difference]: Without dead ends: 991 [2019-10-13 23:05:41,969 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:41,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2019-10-13 23:05:42,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 963. [2019-10-13 23:05:42,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2019-10-13 23:05:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1461 transitions. [2019-10-13 23:05:42,035 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1461 transitions. Word has length 112 [2019-10-13 23:05:42,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:42,036 INFO L462 AbstractCegarLoop]: Abstraction has 963 states and 1461 transitions. [2019-10-13 23:05:42,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:05:42,036 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1461 transitions. [2019-10-13 23:05:42,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-13 23:05:42,045 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:42,045 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1] [2019-10-13 23:05:42,045 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:42,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:42,046 INFO L82 PathProgramCache]: Analyzing trace with hash 444756279, now seen corresponding path program 1 times [2019-10-13 23:05:42,046 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:42,046 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41522558] [2019-10-13 23:05:42,046 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:42,046 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:42,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:42,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:05:42,262 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41522558] [2019-10-13 23:05:42,262 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:42,262 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:05:42,263 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049406523] [2019-10-13 23:05:42,263 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:05:42,263 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:42,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:05:42,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:42,264 INFO L87 Difference]: Start difference. First operand 963 states and 1461 transitions. Second operand 7 states. [2019-10-13 23:05:42,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:42,391 INFO L93 Difference]: Finished difference Result 1537 states and 2344 transitions. [2019-10-13 23:05:42,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:05:42,393 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2019-10-13 23:05:42,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:42,406 INFO L225 Difference]: With dead ends: 1537 [2019-10-13 23:05:42,406 INFO L226 Difference]: Without dead ends: 994 [2019-10-13 23:05:42,410 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2019-10-13 23:05:42,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 966. [2019-10-13 23:05:42,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 966 states. [2019-10-13 23:05:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1464 transitions. [2019-10-13 23:05:42,495 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1464 transitions. Word has length 112 [2019-10-13 23:05:42,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:42,496 INFO L462 AbstractCegarLoop]: Abstraction has 966 states and 1464 transitions. [2019-10-13 23:05:42,496 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:05:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1464 transitions. [2019-10-13 23:05:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-13 23:05:42,503 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:42,503 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2019-10-13 23:05:42,504 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:42,504 INFO L82 PathProgramCache]: Analyzing trace with hash -505526049, now seen corresponding path program 1 times [2019-10-13 23:05:42,504 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:42,505 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836257069] [2019-10-13 23:05:42,506 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:42,506 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:42,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:05:42,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836257069] [2019-10-13 23:05:42,768 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:42,768 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:05:42,768 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149627604] [2019-10-13 23:05:42,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:05:42,769 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:42,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:05:42,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:42,770 INFO L87 Difference]: Start difference. First operand 966 states and 1464 transitions. Second operand 7 states. [2019-10-13 23:05:46,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:46,411 INFO L93 Difference]: Finished difference Result 2072 states and 3161 transitions. [2019-10-13 23:05:46,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:05:46,411 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2019-10-13 23:05:46,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:46,422 INFO L225 Difference]: With dead ends: 2072 [2019-10-13 23:05:46,422 INFO L226 Difference]: Without dead ends: 1402 [2019-10-13 23:05:46,426 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:05:46,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2019-10-13 23:05:46,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1352. [2019-10-13 23:05:46,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2019-10-13 23:05:46,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 2009 transitions. [2019-10-13 23:05:46,510 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 2009 transitions. Word has length 116 [2019-10-13 23:05:46,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:46,510 INFO L462 AbstractCegarLoop]: Abstraction has 1352 states and 2009 transitions. [2019-10-13 23:05:46,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:05:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 2009 transitions. [2019-10-13 23:05:46,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-13 23:05:46,514 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:46,514 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:05:46,515 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:46,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:46,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1202331866, now seen corresponding path program 1 times [2019-10-13 23:05:46,515 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:46,515 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336922603] [2019-10-13 23:05:46,516 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:46,516 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:46,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:05:46,735 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336922603] [2019-10-13 23:05:46,736 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:46,737 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:05:46,737 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885054024] [2019-10-13 23:05:46,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:05:46,738 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:46,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:05:46,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:05:46,738 INFO L87 Difference]: Start difference. First operand 1352 states and 2009 transitions. Second operand 9 states. [2019-10-13 23:05:47,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:47,066 INFO L93 Difference]: Finished difference Result 2636 states and 4022 transitions. [2019-10-13 23:05:47,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:05:47,067 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 119 [2019-10-13 23:05:47,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:47,081 INFO L225 Difference]: With dead ends: 2636 [2019-10-13 23:05:47,081 INFO L226 Difference]: Without dead ends: 1556 [2019-10-13 23:05:47,090 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:05:47,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2019-10-13 23:05:47,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1556. [2019-10-13 23:05:47,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1556 states. [2019-10-13 23:05:47,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1556 states to 1556 states and 2313 transitions. [2019-10-13 23:05:47,204 INFO L78 Accepts]: Start accepts. Automaton has 1556 states and 2313 transitions. Word has length 119 [2019-10-13 23:05:47,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:47,204 INFO L462 AbstractCegarLoop]: Abstraction has 1556 states and 2313 transitions. [2019-10-13 23:05:47,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:05:47,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1556 states and 2313 transitions. [2019-10-13 23:05:47,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-13 23:05:47,208 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:47,208 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:05:47,208 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:47,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:47,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1523904988, now seen corresponding path program 1 times [2019-10-13 23:05:47,209 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:47,209 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504323298] [2019-10-13 23:05:47,209 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:47,209 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:47,210 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:47,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:05:47,414 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504323298] [2019-10-13 23:05:47,414 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:47,414 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:05:47,415 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721546677] [2019-10-13 23:05:47,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:05:47,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:47,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:05:47,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:05:47,416 INFO L87 Difference]: Start difference. First operand 1556 states and 2313 transitions. Second operand 6 states. [2019-10-13 23:05:51,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:51,963 INFO L93 Difference]: Finished difference Result 6381 states and 9869 transitions. [2019-10-13 23:05:51,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 23:05:51,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2019-10-13 23:05:51,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:52,005 INFO L225 Difference]: With dead ends: 6381 [2019-10-13 23:05:52,006 INFO L226 Difference]: Without dead ends: 4868 [2019-10-13 23:05:52,020 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:05:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4868 states. [2019-10-13 23:05:52,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4868 to 4493. [2019-10-13 23:05:52,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4493 states. [2019-10-13 23:05:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4493 states to 4493 states and 6836 transitions. [2019-10-13 23:05:52,320 INFO L78 Accepts]: Start accepts. Automaton has 4493 states and 6836 transitions. Word has length 119 [2019-10-13 23:05:52,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:52,321 INFO L462 AbstractCegarLoop]: Abstraction has 4493 states and 6836 transitions. [2019-10-13 23:05:52,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:05:52,321 INFO L276 IsEmpty]: Start isEmpty. Operand 4493 states and 6836 transitions. [2019-10-13 23:05:52,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-13 23:05:52,325 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:52,325 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:05:52,326 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:52,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:52,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1117673141, now seen corresponding path program 1 times [2019-10-13 23:05:52,327 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:52,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603741189] [2019-10-13 23:05:52,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:52,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:52,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:05:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:05:52,544 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603741189] [2019-10-13 23:05:52,545 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:05:52,545 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:05:52,545 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662027094] [2019-10-13 23:05:52,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:05:52,546 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:05:52,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:05:52,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:05:52,547 INFO L87 Difference]: Start difference. First operand 4493 states and 6836 transitions. Second operand 7 states. [2019-10-13 23:05:56,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:05:56,389 INFO L93 Difference]: Finished difference Result 8059 states and 12329 transitions. [2019-10-13 23:05:56,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:05:56,390 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2019-10-13 23:05:56,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:05:56,441 INFO L225 Difference]: With dead ends: 8059 [2019-10-13 23:05:56,441 INFO L226 Difference]: Without dead ends: 4663 [2019-10-13 23:05:56,470 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:05:56,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4663 states. [2019-10-13 23:05:56,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4663 to 4577. [2019-10-13 23:05:56,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4577 states. [2019-10-13 23:05:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 6942 transitions. [2019-10-13 23:05:56,719 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 6942 transitions. Word has length 120 [2019-10-13 23:05:56,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:05:56,720 INFO L462 AbstractCegarLoop]: Abstraction has 4577 states and 6942 transitions. [2019-10-13 23:05:56,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:05:56,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 6942 transitions. [2019-10-13 23:05:56,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:05:56,724 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:05:56,725 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:05:56,725 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:05:56,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:05:56,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1581210488, now seen corresponding path program 1 times [2019-10-13 23:05:56,726 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:05:56,726 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208487789] [2019-10-13 23:05:56,726 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:56,726 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:05:56,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:05:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat