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_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:03:35,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:03:35,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:03:35,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:03:35,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:03:35,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:03:35,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:03:35,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:03:35,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:03:35,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:03:35,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:03:35,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:03:35,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:03:35,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:03:35,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:03:35,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:03:35,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:03:35,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:03:35,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:03:35,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:03:35,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:03:35,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:03:35,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:03:35,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:03:35,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:03:35,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:03:35,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:03:35,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:03:35,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:03:35,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:03:35,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:03:35,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:03:35,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:03:35,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:03:35,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:03:35,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:03:35,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:03:35,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:03:35,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:03:35,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:03:35,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:03:35,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:03:35,368 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:03:35,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:03:35,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:03:35,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:03:35,371 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:03:35,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:03:35,372 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:03:35,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:03:35,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:03:35,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:03:35,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:03:35,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:03:35,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:03:35,374 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:03:35,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:03:35,374 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:03:35,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:03:35,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:03:35,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:03:35,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:03:35,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:03:35,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:03:35,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:03:35,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:03:35,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:03:35,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:03:35,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:03:35,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:03:35,377 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:03:35,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:03:35,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:03:35,716 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:03:35,717 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:03:35,718 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:03:35,719 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_productSimulator.cil.c [2019-10-13 23:03:35,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9872cf1/fafd30873e3e4a99acee9030ec9805f7/FLAG3a5799af7 [2019-10-13 23:03:36,496 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:03:36,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_productSimulator.cil.c [2019-10-13 23:03:36,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9872cf1/fafd30873e3e4a99acee9030ec9805f7/FLAG3a5799af7 [2019-10-13 23:03:36,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9872cf1/fafd30873e3e4a99acee9030ec9805f7 [2019-10-13 23:03:36,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:03:36,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:03:36,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:03:36,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:03:36,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:03:36,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:03:36" (1/1) ... [2019-10-13 23:03:36,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2e9cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:36, skipping insertion in model container [2019-10-13 23:03:36,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:03:36" (1/1) ... [2019-10-13 23:03:36,711 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:03:36,805 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:03:37,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:03:37,481 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:03:37,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:03:37,803 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:03:37,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37 WrapperNode [2019-10-13 23:03:37,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:03:37,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:03:37,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:03:37,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:03:37,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37" (1/1) ... [2019-10-13 23:03:37,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37" (1/1) ... [2019-10-13 23:03:37,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37" (1/1) ... [2019-10-13 23:03:37,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37" (1/1) ... [2019-10-13 23:03:37,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37" (1/1) ... [2019-10-13 23:03:38,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37" (1/1) ... [2019-10-13 23:03:38,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37" (1/1) ... [2019-10-13 23:03:38,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:03:38,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:03:38,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:03:38,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:03:38,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:03:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:03:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:03:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:03:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:03:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:03:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:03:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:03:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:03:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:03:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:03:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:03:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:03:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:03:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:03:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:03:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:03:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-13 23:03:38,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-13 23:03:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-13 23:03:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 23:03:38,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 23:03:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 23:03:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 23:03:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 23:03:38,162 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 23:03:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 23:03:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 23:03:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 23:03:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 23:03:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked__before__overloaded [2019-10-13 23:03:38,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked__role__overloaded [2019-10-13 23:03:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 23:03:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight [2019-10-13 23:03:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__role__weight [2019-10-13 23:03:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 23:03:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight [2019-10-13 23:03:38,164 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__role__weight [2019-10-13 23:03:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty [2019-10-13 23:03:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__role__empty [2019-10-13 23:03:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 23:03:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 23:03:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 23:03:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 23:03:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 23:03:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 23:03:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 23:03:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 23:03:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 23:03:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 23:03:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull [2019-10-13 23:03:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__twothirdsfull [2019-10-13 23:03:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor [2019-10-13 23:03:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__executivefloor [2019-10-13 23:03:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 23:03:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 23:03:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 23:03:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2019-10-13 23:03:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__twothirdsfull [2019-10-13 23:03:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor [2019-10-13 23:03:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__executivefloor [2019-10-13 23:03:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 23:03:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 23:03:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 23:03:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded [2019-10-13 23:03:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__role__overloaded [2019-10-13 23:03:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:03:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__before__overloaded [2019-10-13 23:03:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__role__overloaded [2019-10-13 23:03:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 23:03:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 23:03:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-13 23:03:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-13 23:03:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 23:03:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 23:03:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 23:03:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 23:03:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 23:03:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 23:03:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 23:03:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 23:03:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 23:03:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 23:03:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:03:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 23:03:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 23:03:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 23:03:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:03:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 23:03:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:03:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:03:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:03:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 23:03:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 23:03:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 23:03:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:03:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:03:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:03:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:03:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:03:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:03:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:03:38,177 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:03:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:03:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:03:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:03:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:03:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:03:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:03:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:03:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:03:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:03:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:03:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:03:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 23:03:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 23:03:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:03:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:03:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 23:03:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 23:03:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:03:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-13 23:03:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-13 23:03:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-13 23:03:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 23:03:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 23:03:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 23:03:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 23:03:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 23:03:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 23:03:38,189 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 23:03:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 23:03:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:03:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 23:03:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 23:03:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 23:03:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:03:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 23:03:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 23:03:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 23:03:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 23:03:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 23:03:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 23:03:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 23:03:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 23:03:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-13 23:03:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-13 23:03:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked__before__overloaded [2019-10-13 23:03:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked__role__overloaded [2019-10-13 23:03:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__before__weight [2019-10-13 23:03:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__role__weight [2019-10-13 23:03:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight [2019-10-13 23:03:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__role__weight [2019-10-13 23:03:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty [2019-10-13 23:03:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__role__empty [2019-10-13 23:03:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 23:03:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 23:03:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 23:03:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 23:03:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 23:03:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull [2019-10-13 23:03:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__twothirdsfull [2019-10-13 23:03:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor [2019-10-13 23:03:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__executivefloor [2019-10-13 23:03:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 23:03:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 23:03:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2019-10-13 23:03:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__twothirdsfull [2019-10-13 23:03:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor [2019-10-13 23:03:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__executivefloor [2019-10-13 23:03:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 23:03:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 23:03:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 23:03:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded [2019-10-13 23:03:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__role__overloaded [2019-10-13 23:03:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure printState__before__overloaded [2019-10-13 23:03:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure printState__role__overloaded [2019-10-13 23:03:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 23:03:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 23:03:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 23:03:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 23:03:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 23:03:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 23:03:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 23:03:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 23:03:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 23:03:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 23:03:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 23:03:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 23:03:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 23:03:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 23:03:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:03:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 23:03:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:03:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:03:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:03:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:03:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:03:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:03:43,670 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:03:43,670 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 23:03:43,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:43 BoogieIcfgContainer [2019-10-13 23:03:43,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:03:43,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:03:43,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:03:43,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:03:43,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:03:36" (1/3) ... [2019-10-13 23:03:43,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d2d410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:43, skipping insertion in model container [2019-10-13 23:03:43,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:37" (2/3) ... [2019-10-13 23:03:43,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d2d410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:43, skipping insertion in model container [2019-10-13 23:03:43,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:43" (3/3) ... [2019-10-13 23:03:43,680 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_productSimulator.cil.c [2019-10-13 23:03:43,691 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:03:43,700 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:03:43,712 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:03:43,745 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:03:43,745 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:03:43,745 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:03:43,746 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:03:43,746 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:03:43,746 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:03:43,746 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:03:43,746 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:03:43,783 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2019-10-13 23:03:43,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-13 23:03:43,809 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:43,813 INFO L380 BasicCegarLoop]: trace histogram [5, 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] [2019-10-13 23:03:43,816 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:43,825 INFO L82 PathProgramCache]: Analyzing trace with hash -636742612, now seen corresponding path program 1 times [2019-10-13 23:03:43,835 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:43,836 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705395792] [2019-10-13 23:03:43,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:43,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:43,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:44,636 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:03:44,636 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705395792] [2019-10-13 23:03:44,637 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:44,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:03:44,638 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699156179] [2019-10-13 23:03:44,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:03:44,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:44,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:03:44,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:03:44,663 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 6 states. [2019-10-13 23:03:44,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:44,920 INFO L93 Difference]: Finished difference Result 1129 states and 1646 transitions. [2019-10-13 23:03:44,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:03:44,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2019-10-13 23:03:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:44,975 INFO L225 Difference]: With dead ends: 1129 [2019-10-13 23:03:44,976 INFO L226 Difference]: Without dead ends: 570 [2019-10-13 23:03:44,990 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:03:45,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2019-10-13 23:03:45,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2019-10-13 23:03:45,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 570 states. [2019-10-13 23:03:45,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 821 transitions. [2019-10-13 23:03:45,163 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 821 transitions. Word has length 124 [2019-10-13 23:03:45,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:45,165 INFO L462 AbstractCegarLoop]: Abstraction has 570 states and 821 transitions. [2019-10-13 23:03:45,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:03:45,166 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 821 transitions. [2019-10-13 23:03:45,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-13 23:03:45,179 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:45,179 INFO L380 BasicCegarLoop]: trace histogram [5, 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] [2019-10-13 23:03:45,180 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:45,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:45,183 INFO L82 PathProgramCache]: Analyzing trace with hash 811356133, now seen corresponding path program 1 times [2019-10-13 23:03:45,184 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:45,185 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829929075] [2019-10-13 23:03:45,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:45,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:45,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:03:45,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829929075] [2019-10-13 23:03:45,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:45,633 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:03:45,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493322394] [2019-10-13 23:03:45,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:03:45,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:45,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:03:45,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:03:45,637 INFO L87 Difference]: Start difference. First operand 570 states and 821 transitions. Second operand 4 states. [2019-10-13 23:03:47,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:47,053 INFO L93 Difference]: Finished difference Result 1591 states and 2330 transitions. [2019-10-13 23:03:47,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:03:47,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2019-10-13 23:03:47,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:47,076 INFO L225 Difference]: With dead ends: 1591 [2019-10-13 23:03:47,076 INFO L226 Difference]: Without dead ends: 1092 [2019-10-13 23:03:47,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:03:47,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2019-10-13 23:03:47,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1079. [2019-10-13 23:03:47,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1079 states. [2019-10-13 23:03:47,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1561 transitions. [2019-10-13 23:03:47,178 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1561 transitions. Word has length 126 [2019-10-13 23:03:47,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:47,179 INFO L462 AbstractCegarLoop]: Abstraction has 1079 states and 1561 transitions. [2019-10-13 23:03:47,179 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:03:47,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1561 transitions. [2019-10-13 23:03:47,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-13 23:03:47,183 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:47,184 INFO L380 BasicCegarLoop]: trace histogram [5, 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] [2019-10-13 23:03:47,184 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:47,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:47,184 INFO L82 PathProgramCache]: Analyzing trace with hash -42944481, now seen corresponding path program 1 times [2019-10-13 23:03:47,185 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:47,185 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859034977] [2019-10-13 23:03:47,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:47,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:47,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:47,525 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:03:47,526 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859034977] [2019-10-13 23:03:47,526 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:47,526 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:03:47,527 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006153957] [2019-10-13 23:03:47,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:03:47,528 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:47,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:03:47,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:03:47,528 INFO L87 Difference]: Start difference. First operand 1079 states and 1561 transitions. Second operand 9 states. [2019-10-13 23:03:54,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:54,523 INFO L93 Difference]: Finished difference Result 2945 states and 4353 transitions. [2019-10-13 23:03:54,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 23:03:54,524 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 127 [2019-10-13 23:03:54,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:54,550 INFO L225 Difference]: With dead ends: 2945 [2019-10-13 23:03:54,550 INFO L226 Difference]: Without dead ends: 1981 [2019-10-13 23:03:54,558 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2019-10-13 23:03:54,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2019-10-13 23:03:54,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 1932. [2019-10-13 23:03:54,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-10-13 23:03:54,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2756 transitions. [2019-10-13 23:03:54,694 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2756 transitions. Word has length 127 [2019-10-13 23:03:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:54,696 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 2756 transitions. [2019-10-13 23:03:54,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:03:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2756 transitions. [2019-10-13 23:03:54,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-13 23:03:54,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:54,702 INFO L380 BasicCegarLoop]: trace histogram [5, 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] [2019-10-13 23:03:54,702 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:54,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:54,703 INFO L82 PathProgramCache]: Analyzing trace with hash -39693034, now seen corresponding path program 1 times [2019-10-13 23:03:54,703 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:54,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222013420] [2019-10-13 23:03:54,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:54,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:54,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:54,978 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:03:54,979 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222013420] [2019-10-13 23:03:54,979 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:54,979 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:03:54,979 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958595668] [2019-10-13 23:03:54,980 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:03:54,980 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:54,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:03:54,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:03:54,981 INFO L87 Difference]: Start difference. First operand 1932 states and 2756 transitions. Second operand 3 states. [2019-10-13 23:03:55,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:55,194 INFO L93 Difference]: Finished difference Result 5557 states and 8013 transitions. [2019-10-13 23:03:55,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:03:55,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-13 23:03:55,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:55,228 INFO L225 Difference]: With dead ends: 5557 [2019-10-13 23:03:55,229 INFO L226 Difference]: Without dead ends: 3744 [2019-10-13 23:03:55,239 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 [2019-10-13 23:03:55,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2019-10-13 23:03:55,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3732. [2019-10-13 23:03:55,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3732 states. [2019-10-13 23:03:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 5365 transitions. [2019-10-13 23:03:55,432 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 5365 transitions. Word has length 128 [2019-10-13 23:03:55,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:55,433 INFO L462 AbstractCegarLoop]: Abstraction has 3732 states and 5365 transitions. [2019-10-13 23:03:55,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:03:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 5365 transitions. [2019-10-13 23:03:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 23:03:55,436 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:55,437 INFO L380 BasicCegarLoop]: trace histogram [5, 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] [2019-10-13 23:03:55,437 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:55,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1230838178, now seen corresponding path program 1 times [2019-10-13 23:03:55,438 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:55,438 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879673341] [2019-10-13 23:03:55,438 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:55,438 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:55,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:55,837 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:03:55,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879673341] [2019-10-13 23:03:55,838 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:55,839 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:03:55,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908208359] [2019-10-13 23:03:55,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:03:55,840 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:55,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:03:55,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:03:55,844 INFO L87 Difference]: Start difference. First operand 3732 states and 5365 transitions. Second operand 6 states. [2019-10-13 23:03:59,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:59,791 INFO L93 Difference]: Finished difference Result 9952 states and 14864 transitions. [2019-10-13 23:03:59,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:03:59,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2019-10-13 23:03:59,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:59,859 INFO L225 Difference]: With dead ends: 9952 [2019-10-13 23:03:59,859 INFO L226 Difference]: Without dead ends: 8116 [2019-10-13 23:03:59,873 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:03:59,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8116 states. [2019-10-13 23:04:00,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8116 to 8029. [2019-10-13 23:04:00,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8029 states. [2019-10-13 23:04:00,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8029 states to 8029 states and 12094 transitions. [2019-10-13 23:04:00,433 INFO L78 Accepts]: Start accepts. Automaton has 8029 states and 12094 transitions. Word has length 129 [2019-10-13 23:04:00,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:04:00,436 INFO L462 AbstractCegarLoop]: Abstraction has 8029 states and 12094 transitions. [2019-10-13 23:04:00,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:04:00,436 INFO L276 IsEmpty]: Start isEmpty. Operand 8029 states and 12094 transitions. [2019-10-13 23:04:00,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 23:04:00,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:04:00,447 INFO L380 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:04:00,447 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:04:00,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:04:00,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1170189868, now seen corresponding path program 1 times [2019-10-13 23:04:00,448 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:04:00,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690887941] [2019-10-13 23:04:00,449 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:00,449 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:00,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:04:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:04:00,878 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:04:00,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690887941] [2019-10-13 23:04:00,880 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:04:00,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:04:00,881 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807327373] [2019-10-13 23:04:00,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:04:00,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:04:00,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:04:00,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:04:00,883 INFO L87 Difference]: Start difference. First operand 8029 states and 12094 transitions. Second operand 12 states. [2019-10-13 23:04:01,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:04:01,762 INFO L93 Difference]: Finished difference Result 16867 states and 25880 transitions. [2019-10-13 23:04:01,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:04:01,762 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 168 [2019-10-13 23:04:01,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:04:01,854 INFO L225 Difference]: With dead ends: 16867 [2019-10-13 23:04:01,854 INFO L226 Difference]: Without dead ends: 8965 [2019-10-13 23:04:01,898 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:04:01,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8965 states. [2019-10-13 23:04:02,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8965 to 8189. [2019-10-13 23:04:02,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8189 states. [2019-10-13 23:04:02,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8189 states to 8189 states and 12302 transitions. [2019-10-13 23:04:02,351 INFO L78 Accepts]: Start accepts. Automaton has 8189 states and 12302 transitions. Word has length 168 [2019-10-13 23:04:02,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:04:02,353 INFO L462 AbstractCegarLoop]: Abstraction has 8189 states and 12302 transitions. [2019-10-13 23:04:02,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:04:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 8189 states and 12302 transitions. [2019-10-13 23:04:02,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-13 23:04:02,361 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:04:02,361 INFO L380 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:04:02,362 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:04:02,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:04:02,362 INFO L82 PathProgramCache]: Analyzing trace with hash -882495742, now seen corresponding path program 1 times [2019-10-13 23:04:02,362 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:04:02,362 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401200739] [2019-10-13 23:04:02,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:02,363 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:02,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:04:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:04:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 23:04:02,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401200739] [2019-10-13 23:04:02,656 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:04:02,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:04:02,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999097923] [2019-10-13 23:04:02,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:04:02,659 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:04:02,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:04:02,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:04:02,661 INFO L87 Difference]: Start difference. First operand 8189 states and 12302 transitions. Second operand 4 states. [2019-10-13 23:04:04,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:04:04,535 INFO L93 Difference]: Finished difference Result 23704 states and 36237 transitions. [2019-10-13 23:04:04,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 23:04:04,536 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2019-10-13 23:04:04,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:04:04,693 INFO L225 Difference]: With dead ends: 23704 [2019-10-13 23:04:04,694 INFO L226 Difference]: Without dead ends: 15642 [2019-10-13 23:04:04,747 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:04:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15642 states. [2019-10-13 23:04:06,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15642 to 15531. [2019-10-13 23:04:06,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15531 states. [2019-10-13 23:04:06,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15531 states to 15531 states and 23441 transitions. [2019-10-13 23:04:06,434 INFO L78 Accepts]: Start accepts. Automaton has 15531 states and 23441 transitions. Word has length 171 [2019-10-13 23:04:06,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:04:06,435 INFO L462 AbstractCegarLoop]: Abstraction has 15531 states and 23441 transitions. [2019-10-13 23:04:06,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:04:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 15531 states and 23441 transitions. [2019-10-13 23:04:06,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-13 23:04:06,458 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:04:06,459 INFO L380 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:04:06,459 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:04:06,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:04:06,459 INFO L82 PathProgramCache]: Analyzing trace with hash 58062575, now seen corresponding path program 1 times [2019-10-13 23:04:06,460 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:04:06,460 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727226385] [2019-10-13 23:04:06,460 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:06,460 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:04:06,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:04:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:04:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 23:04:06,836 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727226385] [2019-10-13 23:04:06,836 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:04:06,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:04:06,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958384752] [2019-10-13 23:04:06,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:04:06,838 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:04:06,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:04:06,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:04:06,839 INFO L87 Difference]: Start difference. First operand 15531 states and 23441 transitions. Second operand 11 states.