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_spec1_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:07:47,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:07:47,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:07:47,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:07:47,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:07:47,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:07:47,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:07:47,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:07:47,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:07:47,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:07:47,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:07:47,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:07:47,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:07:47,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:07:47,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:07:47,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:07:47,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:07:47,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:07:47,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:07:47,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:07:47,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:07:47,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:07:47,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:07:47,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:07:47,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:07:47,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:07:47,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:07:47,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:07:47,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:07:47,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:07:47,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:07:47,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:07:47,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:07:47,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:07:47,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:07:47,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:07:47,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:07:47,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:07:47,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:07:47,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:07:47,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:07:47,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:07:47,300 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:07:47,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:07:47,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:07:47,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:07:47,304 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:07:47,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:07:47,304 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:07:47,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:07:47,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:07:47,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:07:47,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:07:47,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:07:47,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:07:47,308 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:07:47,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:07:47,308 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:07:47,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:07:47,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:07:47,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:07:47,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:07:47,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:07:47,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:07:47,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:07:47,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:07:47,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:07:47,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:07:47,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:07:47,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:07:47,311 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:07:47,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:07:47,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:07:47,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:07:47,635 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:07:47,635 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:07:47,636 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product32.cil.c [2019-10-15 03:07:47,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e934e0104/acd89550b2894605b6a83a93a0a007cc/FLAGd7a474d82 [2019-10-15 03:07:48,442 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:07:48,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product32.cil.c [2019-10-15 03:07:48,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e934e0104/acd89550b2894605b6a83a93a0a007cc/FLAGd7a474d82 [2019-10-15 03:07:48,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e934e0104/acd89550b2894605b6a83a93a0a007cc [2019-10-15 03:07:48,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:07:48,668 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:07:48,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:48,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:07:48,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:07:48,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:48" (1/1) ... [2019-10-15 03:07:48,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fef2b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:48, skipping insertion in model container [2019-10-15 03:07:48,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:48" (1/1) ... [2019-10-15 03:07:48,690 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:07:48,787 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:07:49,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:49,569 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:07:49,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:49,849 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:07:49,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49 WrapperNode [2019-10-15 03:07:49,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:49,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:07:49,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:07:49,853 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:07:49,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49" (1/1) ... [2019-10-15 03:07:49,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49" (1/1) ... [2019-10-15 03:07:49,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49" (1/1) ... [2019-10-15 03:07:49,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49" (1/1) ... [2019-10-15 03:07:50,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49" (1/1) ... [2019-10-15 03:07:50,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49" (1/1) ... [2019-10-15 03:07:50,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49" (1/1) ... [2019-10-15 03:07:50,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:07:50,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:07:50,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:07:50,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:07:50,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:07:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:07:50,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:07:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:07:50,222 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:07:50,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:07:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:07:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:07:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:07:50,225 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:07:50,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:07:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-15 03:07:50,227 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:07:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-15 03:07:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-15 03:07:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:07:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:07:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:07:50,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:07:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:07:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:07:50,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:07:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:07:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:07:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:07:50,234 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-15 03:07:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-15 03:07:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:07:50,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:07:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:07:50,236 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-15 03:07:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-15 03:07:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:07:50,237 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:07:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-15 03:07:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:07:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-15 03:07:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:07:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:07:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-15 03:07:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-15 03:07:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:07:50,239 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:07:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:07:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:07:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:07:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:07:50,240 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:07:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:07:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:07:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:07:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:07:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:07:50,241 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:07:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:07:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:07:50,242 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:07:50,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:07:50,243 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:07:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:07:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:07:50,244 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:07:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:50,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:07:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:07:50,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:07:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:07:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:07:50,248 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:07:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:07:50,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:07:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:07:50,250 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:07:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:07:50,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:07:50,252 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:07:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:07:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:07:50,252 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:07:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:07:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:07:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:07:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:07:50,254 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:07:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:07:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:07:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:07:50,255 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:07:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:07:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:07:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:07:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:07:50,256 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:07:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:07:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:07:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:07:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:07:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:07:50,257 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:07:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:07:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:07:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:07:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:07:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:07:50,258 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:07:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-15 03:07:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-15 03:07:50,259 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-15 03:07:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-15 03:07:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-15 03:07:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:07:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:07:50,260 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:07:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:07:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:07:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-15 03:07:50,261 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-15 03:07:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:07:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:07:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-15 03:07:50,263 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-15 03:07:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:07:50,264 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:07:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-15 03:07:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-15 03:07:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:07:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:07:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:07:50,271 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:07:50,272 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:07:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:07:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:07:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:07:50,273 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:07:50,274 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:07:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:07:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:07:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:07:50,284 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:07:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:07:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:07:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:07:50,285 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:07:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:07:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:07:50,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:07:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:07:50,287 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:07:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:07:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:07:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:07:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:07:50,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:07:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:07:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:07:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:50,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:07:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:07:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:07:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:07:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:07:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:07:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:07:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:07:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:07:50,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:07:57,769 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:07:57,769 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:07:57,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:57 BoogieIcfgContainer [2019-10-15 03:07:57,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:07:57,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:07:57,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:07:57,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:07:57,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:07:48" (1/3) ... [2019-10-15 03:07:57,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb14895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:57, skipping insertion in model container [2019-10-15 03:07:57,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:49" (2/3) ... [2019-10-15 03:07:57,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb14895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:57, skipping insertion in model container [2019-10-15 03:07:57,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:57" (3/3) ... [2019-10-15 03:07:57,782 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product32.cil.c [2019-10-15 03:07:57,794 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:07:57,810 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:07:57,830 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:07:57,879 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:07:57,879 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:07:57,880 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:07:57,880 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:07:57,880 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:07:57,880 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:07:57,880 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:07:57,880 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:07:57,920 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states. [2019-10-15 03:07:57,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-15 03:07:57,935 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:57,937 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:57,939 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:57,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:57,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1630587040, now seen corresponding path program 1 times [2019-10-15 03:07:57,956 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:57,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161946838] [2019-10-15 03:07:57,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:57,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:57,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:07:59,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161946838] [2019-10-15 03:07:59,043 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:59,044 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:07:59,045 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163743618] [2019-10-15 03:07:59,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:07:59,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:59,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:07:59,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:07:59,074 INFO L87 Difference]: Start difference. First operand 617 states. Second operand 6 states. [2019-10-15 03:08:04,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:04,582 INFO L93 Difference]: Finished difference Result 1481 states and 2263 transitions. [2019-10-15 03:08:04,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:08:04,585 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2019-10-15 03:08:04,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:04,618 INFO L225 Difference]: With dead ends: 1481 [2019-10-15 03:08:04,618 INFO L226 Difference]: Without dead ends: 1023 [2019-10-15 03:08:04,630 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:08:04,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2019-10-15 03:08:04,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 932. [2019-10-15 03:08:04,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 932 states. [2019-10-15 03:08:04,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1417 transitions. [2019-10-15 03:08:04,851 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1417 transitions. Word has length 97 [2019-10-15 03:08:04,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:04,852 INFO L462 AbstractCegarLoop]: Abstraction has 932 states and 1417 transitions. [2019-10-15 03:08:04,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:08:04,852 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1417 transitions. [2019-10-15 03:08:04,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:08:04,870 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:04,870 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:04,871 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:04,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:04,872 INFO L82 PathProgramCache]: Analyzing trace with hash 699214467, now seen corresponding path program 1 times [2019-10-15 03:08:04,872 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:04,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536885046] [2019-10-15 03:08:04,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:04,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:04,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:05,265 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:08:05,266 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536885046] [2019-10-15 03:08:05,266 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:05,268 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:08:05,272 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352562517] [2019-10-15 03:08:05,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:08:05,287 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:05,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:08:05,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:05,288 INFO L87 Difference]: Start difference. First operand 932 states and 1417 transitions. Second operand 7 states. [2019-10-15 03:08:10,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:10,522 INFO L93 Difference]: Finished difference Result 2718 states and 4199 transitions. [2019-10-15 03:08:10,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:08:10,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2019-10-15 03:08:10,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:10,572 INFO L225 Difference]: With dead ends: 2718 [2019-10-15 03:08:10,573 INFO L226 Difference]: Without dead ends: 1840 [2019-10-15 03:08:10,582 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:08:10,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2019-10-15 03:08:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1803. [2019-10-15 03:08:10,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1803 states. [2019-10-15 03:08:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2777 transitions. [2019-10-15 03:08:10,857 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2777 transitions. Word has length 146 [2019-10-15 03:08:10,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:10,858 INFO L462 AbstractCegarLoop]: Abstraction has 1803 states and 2777 transitions. [2019-10-15 03:08:10,858 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:08:10,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2777 transitions. [2019-10-15 03:08:10,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 03:08:10,867 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:10,868 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:10,868 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:10,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:10,868 INFO L82 PathProgramCache]: Analyzing trace with hash 247221830, now seen corresponding path program 1 times [2019-10-15 03:08:10,869 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:10,869 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61156763] [2019-10-15 03:08:10,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:10,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:10,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:08:11,262 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61156763] [2019-10-15 03:08:11,262 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:11,263 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:08:11,263 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929216093] [2019-10-15 03:08:11,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:08:11,266 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:11,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:08:11,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:08:11,267 INFO L87 Difference]: Start difference. First operand 1803 states and 2777 transitions. Second operand 12 states. [2019-10-15 03:08:22,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:22,460 INFO L93 Difference]: Finished difference Result 4588 states and 7042 transitions. [2019-10-15 03:08:22,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-15 03:08:22,461 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2019-10-15 03:08:22,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:22,483 INFO L225 Difference]: With dead ends: 4588 [2019-10-15 03:08:22,483 INFO L226 Difference]: Without dead ends: 2838 [2019-10-15 03:08:22,495 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2019-10-15 03:08:22,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2019-10-15 03:08:22,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2789. [2019-10-15 03:08:22,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2789 states. [2019-10-15 03:08:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 4242 transitions. [2019-10-15 03:08:22,742 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 4242 transitions. Word has length 149 [2019-10-15 03:08:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:22,744 INFO L462 AbstractCegarLoop]: Abstraction has 2789 states and 4242 transitions. [2019-10-15 03:08:22,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:08:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 4242 transitions. [2019-10-15 03:08:22,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 03:08:22,752 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:22,753 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:22,753 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:22,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:22,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2003943514, now seen corresponding path program 1 times [2019-10-15 03:08:22,754 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:22,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002151832] [2019-10-15 03:08:22,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:22,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:22,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:23,065 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:08:23,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002151832] [2019-10-15 03:08:23,066 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:23,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:08:23,066 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960075048] [2019-10-15 03:08:23,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:08:23,068 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:23,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:08:23,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:08:23,069 INFO L87 Difference]: Start difference. First operand 2789 states and 4242 transitions. Second operand 6 states. [2019-10-15 03:08:24,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:24,039 INFO L93 Difference]: Finished difference Result 2841 states and 4324 transitions. [2019-10-15 03:08:24,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:08:24,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2019-10-15 03:08:24,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:24,062 INFO L225 Difference]: With dead ends: 2841 [2019-10-15 03:08:24,063 INFO L226 Difference]: Without dead ends: 2824 [2019-10-15 03:08:24,067 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:08:24,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2824 states. [2019-10-15 03:08:24,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2824 to 2795. [2019-10-15 03:08:24,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2795 states. [2019-10-15 03:08:24,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 4248 transitions. [2019-10-15 03:08:24,268 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 4248 transitions. Word has length 150 [2019-10-15 03:08:24,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:24,270 INFO L462 AbstractCegarLoop]: Abstraction has 2795 states and 4248 transitions. [2019-10-15 03:08:24,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:08:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 4248 transitions. [2019-10-15 03:08:24,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 03:08:24,278 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:24,279 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:24,279 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:24,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:24,280 INFO L82 PathProgramCache]: Analyzing trace with hash -681305135, now seen corresponding path program 1 times [2019-10-15 03:08:24,280 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:24,281 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489830820] [2019-10-15 03:08:24,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:24,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:24,282 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:24,696 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:08:24,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489830820] [2019-10-15 03:08:24,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:24,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:08:24,697 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319207314] [2019-10-15 03:08:24,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:08:24,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:24,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:08:24,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:08:24,700 INFO L87 Difference]: Start difference. First operand 2795 states and 4248 transitions. Second operand 9 states. [2019-10-15 03:08:26,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:26,024 INFO L93 Difference]: Finished difference Result 2966 states and 4480 transitions. [2019-10-15 03:08:26,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:08:26,025 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 155 [2019-10-15 03:08:26,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:26,043 INFO L225 Difference]: With dead ends: 2966 [2019-10-15 03:08:26,043 INFO L226 Difference]: Without dead ends: 2949 [2019-10-15 03:08:26,046 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-15 03:08:26,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2019-10-15 03:08:26,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 2887. [2019-10-15 03:08:26,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2887 states. [2019-10-15 03:08:26,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 4372 transitions. [2019-10-15 03:08:26,205 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 4372 transitions. Word has length 155 [2019-10-15 03:08:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:26,207 INFO L462 AbstractCegarLoop]: Abstraction has 2887 states and 4372 transitions. [2019-10-15 03:08:26,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:08:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 4372 transitions. [2019-10-15 03:08:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-15 03:08:26,213 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:26,214 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:26,214 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:26,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1690517356, now seen corresponding path program 1 times [2019-10-15 03:08:26,214 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:26,215 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484127798] [2019-10-15 03:08:26,215 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:26,215 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:26,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat