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_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:09:52,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:09:52,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:09:52,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:09:52,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:09:52,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:09:52,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:09:52,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:09:52,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:09:52,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:09:52,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:09:52,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:09:52,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:09:52,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:09:52,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:09:52,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:09:52,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:09:52,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:09:52,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:09:52,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:09:52,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:09:52,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:09:52,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:09:52,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:09:52,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:09:52,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:09:52,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:09:52,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:09:52,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:09:52,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:09:52,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:09:52,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:09:52,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:09:52,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:09:52,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:09:52,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:09:52,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:09:52,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:09:52,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:09:52,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:09:52,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:09:52,274 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 03:09:52,322 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:09:52,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:09:52,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:09:52,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:09:52,337 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:09:52,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:09:52,340 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:09:52,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:09:52,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:09:52,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:09:52,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:09:52,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:09:52,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:09:52,350 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:09:52,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:09:52,351 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:09:52,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:09:52,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:09:52,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:09:52,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:09:52,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:09:52,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:09:52,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:09:52,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:09:52,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:09:52,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:09:52,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:09:52,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:09:52,357 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 03:09:52,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:09:52,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:09:52,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:09:52,784 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:09:52,786 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:09:52,787 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product09.cil.c [2019-10-15 03:09:52,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d0ef922/2ff4fea7f5a94d2480b4072de51d39a5/FLAG181e8ad89 [2019-10-15 03:09:53,797 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:09:53,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product09.cil.c [2019-10-15 03:09:53,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d0ef922/2ff4fea7f5a94d2480b4072de51d39a5/FLAG181e8ad89 [2019-10-15 03:09:53,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d0ef922/2ff4fea7f5a94d2480b4072de51d39a5 [2019-10-15 03:09:53,981 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:09:53,986 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:09:53,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:09:53,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:09:54,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:09:54,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:53" (1/1) ... [2019-10-15 03:09:54,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee9cbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:54, skipping insertion in model container [2019-10-15 03:09:54,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:53" (1/1) ... [2019-10-15 03:09:54,036 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:09:54,137 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:09:55,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:09:55,112 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:09:55,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:09:55,356 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:09:55,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55 WrapperNode [2019-10-15 03:09:55,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:09:55,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:09:55,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:09:55,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:09:55,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55" (1/1) ... [2019-10-15 03:09:55,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55" (1/1) ... [2019-10-15 03:09:55,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55" (1/1) ... [2019-10-15 03:09:55,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55" (1/1) ... [2019-10-15 03:09:55,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55" (1/1) ... [2019-10-15 03:09:55,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55" (1/1) ... [2019-10-15 03:09:55,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55" (1/1) ... [2019-10-15 03:09:55,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:09:55,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:09:55,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:09:55,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:09:55,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55" (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 03:09:55,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:09:55,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:09:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:09:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:09:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:09:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:09:55,747 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:09:55,748 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:09:55,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:09:55,748 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:09:55,748 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:09:55,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:09:55,749 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:09:55,749 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:09:55,749 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:09:55,749 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:09:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:09:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:09:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:09:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:09:55,750 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:09:55,751 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:09:55,751 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:09:55,751 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:09:55,751 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:09:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:09:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:09:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:09:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:09:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:09:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:09:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:09:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:09:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-15 03:09:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:09:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:09:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:09:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:09:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:09:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:09:55,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:09:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:09:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:09:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:09:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:09:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:09:55,755 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:09:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:09:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:09:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:09:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:09:55,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:09:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:09:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:09:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:09:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:09:55,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:09:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:09:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:09:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-15 03:09:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-15 03:09:55,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-15 03:09:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-15 03:09:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:09:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:09:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:09:55,759 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:09:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:09:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:09:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:09:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:09:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:09:55,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:09:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:09:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:09:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:09:55,761 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:09:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:09:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:09:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:09:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:09:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:09:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:09:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:09:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:09:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:09:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:09:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:09:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:09:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:09:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:09:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:09:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:09:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:09:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:09:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:09:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:09:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:09:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:09:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:09:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:09:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:09:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:09:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:09:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:09:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:09:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-15 03:09:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-15 03:09:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:09:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:09:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:09:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:09:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:09:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:09:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:09:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:09:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:09:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:09:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:09:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:09:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:09:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:09:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-15 03:09:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:09:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-15 03:09:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:09:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:09:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:09:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:09:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:09:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:09:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:09:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:09:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:09:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-15 03:09:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:09:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:09:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:09:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:09:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:09:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:09:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:09:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:09:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:09:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:09:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:09:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:09:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:09:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:09:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:09:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:09:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:09:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:09:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:09:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:09:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:09:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:09:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:09:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:09:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:09:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:10:02,579 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:10:02,579 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:10:02,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:10:02 BoogieIcfgContainer [2019-10-15 03:10:02,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:10:02,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:10:02,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:10:02,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:10:02,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:09:53" (1/3) ... [2019-10-15 03:10:02,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68eb0881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:10:02, skipping insertion in model container [2019-10-15 03:10:02,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:55" (2/3) ... [2019-10-15 03:10:02,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68eb0881 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:10:02, skipping insertion in model container [2019-10-15 03:10:02,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:10:02" (3/3) ... [2019-10-15 03:10:02,590 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product09.cil.c [2019-10-15 03:10:02,601 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:10:02,624 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:10:02,644 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:10:02,677 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:10:02,678 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:10:02,678 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:10:02,678 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:10:02,678 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:10:02,678 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:10:02,679 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:10:02,679 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:10:02,779 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states. [2019-10-15 03:10:02,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-15 03:10:02,802 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:02,804 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:02,807 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:02,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:02,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1257646830, now seen corresponding path program 1 times [2019-10-15 03:10:02,825 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:02,826 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183968803] [2019-10-15 03:10:02,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:02,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:02,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:03,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183968803] [2019-10-15 03:10:03,497 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:03,498 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:10:03,498 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704864271] [2019-10-15 03:10:03,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:10:03,505 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:03,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:10:03,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:10:03,524 INFO L87 Difference]: Start difference. First operand 528 states. Second operand 8 states. [2019-10-15 03:10:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:03,745 INFO L93 Difference]: Finished difference Result 808 states and 1249 transitions. [2019-10-15 03:10:03,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:10:03,747 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-10-15 03:10:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:03,788 INFO L225 Difference]: With dead ends: 808 [2019-10-15 03:10:03,788 INFO L226 Difference]: Without dead ends: 436 [2019-10-15 03:10:03,804 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:10:03,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2019-10-15 03:10:03,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 401. [2019-10-15 03:10:03,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-15 03:10:03,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 599 transitions. [2019-10-15 03:10:03,931 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 599 transitions. Word has length 92 [2019-10-15 03:10:03,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:03,932 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 599 transitions. [2019-10-15 03:10:03,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:10:03,932 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 599 transitions. [2019-10-15 03:10:03,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-15 03:10:03,941 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:03,941 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:03,942 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:03,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:03,942 INFO L82 PathProgramCache]: Analyzing trace with hash -201394643, now seen corresponding path program 1 times [2019-10-15 03:10:03,942 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:03,943 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637986689] [2019-10-15 03:10:03,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:03,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:03,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:04,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637986689] [2019-10-15 03:10:04,268 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:04,268 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:10:04,268 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958013337] [2019-10-15 03:10:04,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:10:04,271 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:04,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:10:04,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:10:04,272 INFO L87 Difference]: Start difference. First operand 401 states and 599 transitions. Second operand 7 states. [2019-10-15 03:10:08,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:08,551 INFO L93 Difference]: Finished difference Result 1234 states and 1906 transitions. [2019-10-15 03:10:08,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 03:10:08,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-10-15 03:10:08,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:08,576 INFO L225 Difference]: With dead ends: 1234 [2019-10-15 03:10:08,577 INFO L226 Difference]: Without dead ends: 875 [2019-10-15 03:10:08,587 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-10-15 03:10:08,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2019-10-15 03:10:08,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 848. [2019-10-15 03:10:08,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2019-10-15 03:10:08,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1313 transitions. [2019-10-15 03:10:08,727 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1313 transitions. Word has length 97 [2019-10-15 03:10:08,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:08,730 INFO L462 AbstractCegarLoop]: Abstraction has 848 states and 1313 transitions. [2019-10-15 03:10:08,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:10:08,781 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1313 transitions. [2019-10-15 03:10:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-15 03:10:08,788 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:08,788 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:08,789 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:08,790 INFO L82 PathProgramCache]: Analyzing trace with hash -944067870, now seen corresponding path program 1 times [2019-10-15 03:10:08,790 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:08,790 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670367501] [2019-10-15 03:10:08,790 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:08,791 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:08,791 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:08,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:09,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:09,085 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670367501] [2019-10-15 03:10:09,085 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:09,085 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:10:09,086 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178320624] [2019-10-15 03:10:09,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:10:09,086 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:09,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:10:09,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:10:09,087 INFO L87 Difference]: Start difference. First operand 848 states and 1313 transitions. Second operand 5 states. [2019-10-15 03:10:09,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:09,243 INFO L93 Difference]: Finished difference Result 1344 states and 2094 transitions. [2019-10-15 03:10:09,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:10:09,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-10-15 03:10:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:09,253 INFO L225 Difference]: With dead ends: 1344 [2019-10-15 03:10:09,253 INFO L226 Difference]: Without dead ends: 870 [2019-10-15 03:10:09,256 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:10:09,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-15 03:10:09,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 860. [2019-10-15 03:10:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 860 states. [2019-10-15 03:10:09,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1328 transitions. [2019-10-15 03:10:09,321 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1328 transitions. Word has length 101 [2019-10-15 03:10:09,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:09,322 INFO L462 AbstractCegarLoop]: Abstraction has 860 states and 1328 transitions. [2019-10-15 03:10:09,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:10:09,322 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1328 transitions. [2019-10-15 03:10:09,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-15 03:10:09,326 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:09,326 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:09,326 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:09,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:09,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1733405498, now seen corresponding path program 1 times [2019-10-15 03:10:09,327 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:09,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717267270] [2019-10-15 03:10:09,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:09,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:09,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:09,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717267270] [2019-10-15 03:10:09,662 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:09,662 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:10:09,662 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155918693] [2019-10-15 03:10:09,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:10:09,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:09,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:10:09,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:10:09,666 INFO L87 Difference]: Start difference. First operand 860 states and 1328 transitions. Second operand 8 states. [2019-10-15 03:10:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:14,623 INFO L93 Difference]: Finished difference Result 1825 states and 2823 transitions. [2019-10-15 03:10:14,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:10:14,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2019-10-15 03:10:14,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:14,633 INFO L225 Difference]: With dead ends: 1825 [2019-10-15 03:10:14,633 INFO L226 Difference]: Without dead ends: 1243 [2019-10-15 03:10:14,636 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:10:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2019-10-15 03:10:14,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1193. [2019-10-15 03:10:14,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-10-15 03:10:14,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1800 transitions. [2019-10-15 03:10:14,707 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1800 transitions. Word has length 105 [2019-10-15 03:10:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:14,708 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1800 transitions. [2019-10-15 03:10:14,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:10:14,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1800 transitions. [2019-10-15 03:10:14,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-15 03:10:14,712 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:14,713 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:14,713 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:14,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:14,715 INFO L82 PathProgramCache]: Analyzing trace with hash 993846073, now seen corresponding path program 1 times [2019-10-15 03:10:14,715 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:14,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326092770] [2019-10-15 03:10:14,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:14,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:14,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:14,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:14,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326092770] [2019-10-15 03:10:14,878 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:14,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:10:14,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103978306] [2019-10-15 03:10:14,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:10:14,880 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:14,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:10:14,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:10:14,880 INFO L87 Difference]: Start difference. First operand 1193 states and 1800 transitions. Second operand 7 states. [2019-10-15 03:10:15,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:15,127 INFO L93 Difference]: Finished difference Result 2252 states and 3483 transitions. [2019-10-15 03:10:15,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:10:15,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2019-10-15 03:10:15,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:15,148 INFO L225 Difference]: With dead ends: 2252 [2019-10-15 03:10:15,148 INFO L226 Difference]: Without dead ends: 1193 [2019-10-15 03:10:15,158 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:10:15,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2019-10-15 03:10:15,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1193. [2019-10-15 03:10:15,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-10-15 03:10:15,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1768 transitions. [2019-10-15 03:10:15,255 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1768 transitions. Word has length 108 [2019-10-15 03:10:15,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:15,256 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1768 transitions. [2019-10-15 03:10:15,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:10:15,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1768 transitions. [2019-10-15 03:10:15,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-15 03:10:15,262 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:15,262 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] [2019-10-15 03:10:15,263 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:15,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:15,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1760314651, now seen corresponding path program 1 times [2019-10-15 03:10:15,263 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:15,264 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629203558] [2019-10-15 03:10:15,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:15,264 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:15,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:15,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:10:15,567 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629203558] [2019-10-15 03:10:15,568 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:15,568 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:10:15,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778106848] [2019-10-15 03:10:15,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:10:15,570 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:15,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:10:15,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:10:15,580 INFO L87 Difference]: Start difference. First operand 1193 states and 1768 transitions. Second operand 7 states. [2019-10-15 03:10:19,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:19,361 INFO L93 Difference]: Finished difference Result 2121 states and 3153 transitions. [2019-10-15 03:10:19,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:10:19,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2019-10-15 03:10:19,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:19,374 INFO L225 Difference]: With dead ends: 2121 [2019-10-15 03:10:19,374 INFO L226 Difference]: Without dead ends: 1263 [2019-10-15 03:10:19,381 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 [2019-10-15 03:10:19,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2019-10-15 03:10:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1220. [2019-10-15 03:10:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1220 states. [2019-10-15 03:10:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1802 transitions. [2019-10-15 03:10:19,630 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1802 transitions. Word has length 110 [2019-10-15 03:10:19,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:19,631 INFO L462 AbstractCegarLoop]: Abstraction has 1220 states and 1802 transitions. [2019-10-15 03:10:19,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:10:19,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1802 transitions. [2019-10-15 03:10:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-15 03:10:19,635 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:19,635 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2019-10-15 03:10:19,636 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:19,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:19,636 INFO L82 PathProgramCache]: Analyzing trace with hash -374647687, now seen corresponding path program 1 times [2019-10-15 03:10:19,637 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:19,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458164354] [2019-10-15 03:10:19,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:19,638 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:19,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:19,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:10:19,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458164354] [2019-10-15 03:10:19,863 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:19,863 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:19,863 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341766968] [2019-10-15 03:10:19,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:19,864 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:19,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:19,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:19,865 INFO L87 Difference]: Start difference. First operand 1220 states and 1802 transitions. Second operand 3 states. [2019-10-15 03:10:20,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:20,045 INFO L93 Difference]: Finished difference Result 3533 states and 5300 transitions. [2019-10-15 03:10:20,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:20,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-10-15 03:10:20,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:20,072 INFO L225 Difference]: With dead ends: 3533 [2019-10-15 03:10:20,072 INFO L226 Difference]: Without dead ends: 2355 [2019-10-15 03:10:20,083 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:20,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2019-10-15 03:10:20,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 2308. [2019-10-15 03:10:20,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2019-10-15 03:10:20,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 3455 transitions. [2019-10-15 03:10:20,261 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 3455 transitions. Word has length 117 [2019-10-15 03:10:20,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:20,263 INFO L462 AbstractCegarLoop]: Abstraction has 2308 states and 3455 transitions. [2019-10-15 03:10:20,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:20,264 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 3455 transitions. [2019-10-15 03:10:20,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-15 03:10:20,268 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:20,268 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2019-10-15 03:10:20,268 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:20,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:20,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1269557317, now seen corresponding path program 1 times [2019-10-15 03:10:20,269 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:20,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856229779] [2019-10-15 03:10:20,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:20,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:20,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:20,496 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:10:20,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856229779] [2019-10-15 03:10:20,497 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:20,497 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:20,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869915638] [2019-10-15 03:10:20,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:20,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:20,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:20,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:20,499 INFO L87 Difference]: Start difference. First operand 2308 states and 3455 transitions. Second operand 3 states. [2019-10-15 03:10:20,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:20,697 INFO L93 Difference]: Finished difference Result 6798 states and 10328 transitions. [2019-10-15 03:10:20,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:20,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-15 03:10:20,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:20,735 INFO L225 Difference]: With dead ends: 6798 [2019-10-15 03:10:20,735 INFO L226 Difference]: Without dead ends: 4533 [2019-10-15 03:10:20,749 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:20,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2019-10-15 03:10:20,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4485. [2019-10-15 03:10:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4485 states. [2019-10-15 03:10:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4485 states to 4485 states and 6800 transitions. [2019-10-15 03:10:21,014 INFO L78 Accepts]: Start accepts. Automaton has 4485 states and 6800 transitions. Word has length 118 [2019-10-15 03:10:21,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:21,017 INFO L462 AbstractCegarLoop]: Abstraction has 4485 states and 6800 transitions. [2019-10-15 03:10:21,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 4485 states and 6800 transitions. [2019-10-15 03:10:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-15 03:10:21,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:21,022 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2019-10-15 03:10:21,022 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:21,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:21,023 INFO L82 PathProgramCache]: Analyzing trace with hash 700308795, now seen corresponding path program 1 times [2019-10-15 03:10:21,023 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:21,024 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999519703] [2019-10-15 03:10:21,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:21,024 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:21,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:21,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:10:21,259 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999519703] [2019-10-15 03:10:21,261 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:21,262 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:21,262 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729324213] [2019-10-15 03:10:21,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:21,263 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:21,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:21,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:21,264 INFO L87 Difference]: Start difference. First operand 4485 states and 6800 transitions. Second operand 3 states. [2019-10-15 03:10:21,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:21,716 INFO L93 Difference]: Finished difference Result 13329 states and 20584 transitions. [2019-10-15 03:10:21,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:21,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-15 03:10:21,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:21,794 INFO L225 Difference]: With dead ends: 13329 [2019-10-15 03:10:21,795 INFO L226 Difference]: Without dead ends: 8889 [2019-10-15 03:10:21,828 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:21,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8889 states. [2019-10-15 03:10:22,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8889 to 8840. [2019-10-15 03:10:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8840 states. [2019-10-15 03:10:22,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8840 states to 8840 states and 13624 transitions. [2019-10-15 03:10:22,387 INFO L78 Accepts]: Start accepts. Automaton has 8840 states and 13624 transitions. Word has length 119 [2019-10-15 03:10:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:22,390 INFO L462 AbstractCegarLoop]: Abstraction has 8840 states and 13624 transitions. [2019-10-15 03:10:22,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:22,391 INFO L276 IsEmpty]: Start isEmpty. Operand 8840 states and 13624 transitions. [2019-10-15 03:10:22,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-15 03:10:22,395 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:22,396 INFO L380 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:22,396 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:22,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:22,397 INFO L82 PathProgramCache]: Analyzing trace with hash 233477703, now seen corresponding path program 1 times [2019-10-15 03:10:22,397 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:22,398 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555860415] [2019-10-15 03:10:22,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:22,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:22,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:10:22,606 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555860415] [2019-10-15 03:10:22,607 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:22,607 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:22,607 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970844631] [2019-10-15 03:10:22,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:22,608 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:22,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:22,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:22,609 INFO L87 Difference]: Start difference. First operand 8840 states and 13624 transitions. Second operand 3 states. [2019-10-15 03:10:23,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:23,457 INFO L93 Difference]: Finished difference Result 26392 states and 41789 transitions. [2019-10-15 03:10:23,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:23,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-15 03:10:23,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:23,658 INFO L225 Difference]: With dead ends: 26392 [2019-10-15 03:10:23,658 INFO L226 Difference]: Without dead ends: 17601 [2019-10-15 03:10:23,736 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:23,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17601 states. [2019-10-15 03:10:25,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17601 to 17551. [2019-10-15 03:10:25,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17551 states. [2019-10-15 03:10:25,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17551 states to 17551 states and 27748 transitions. [2019-10-15 03:10:25,808 INFO L78 Accepts]: Start accepts. Automaton has 17551 states and 27748 transitions. Word has length 120 [2019-10-15 03:10:25,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:25,809 INFO L462 AbstractCegarLoop]: Abstraction has 17551 states and 27748 transitions. [2019-10-15 03:10:25,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:25,809 INFO L276 IsEmpty]: Start isEmpty. Operand 17551 states and 27748 transitions. [2019-10-15 03:10:25,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-15 03:10:25,812 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:25,812 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] [2019-10-15 03:10:25,813 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:25,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:25,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1726395529, now seen corresponding path program 1 times [2019-10-15 03:10:25,813 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:25,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792442388] [2019-10-15 03:10:25,814 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:25,814 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:25,814 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:25,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 03:10:25,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792442388] [2019-10-15 03:10:25,953 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:25,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:25,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926750281] [2019-10-15 03:10:25,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:25,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:25,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:25,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:25,955 INFO L87 Difference]: Start difference. First operand 17551 states and 27748 transitions. Second operand 3 states. [2019-10-15 03:10:26,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:26,551 INFO L93 Difference]: Finished difference Result 18691 states and 29719 transitions. [2019-10-15 03:10:26,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:26,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-15 03:10:26,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:26,707 INFO L225 Difference]: With dead ends: 18691 [2019-10-15 03:10:26,708 INFO L226 Difference]: Without dead ends: 18678 [2019-10-15 03:10:26,725 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:26,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18678 states.