/usr/bin/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_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:08:52,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:08:52,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:08:52,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:08:52,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:08:52,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:08:52,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:08:52,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:08:52,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:08:52,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:08:52,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:08:52,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:08:52,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:08:52,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:08:52,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:08:52,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:08:52,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:08:52,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:08:52,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:08:52,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:08:52,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:08:52,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:08:52,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:08:52,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:08:52,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:08:52,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:08:52,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:08:52,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:08:52,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:08:52,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:08:52,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:08:52,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:08:52,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:08:52,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:08:52,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:08:52,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:08:52,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:08:52,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:08:52,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:08:52,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:08:52,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:08:52,823 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 [2019-11-07 04:08:52,837 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:08:52,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:08:52,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:08:52,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:08:52,839 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:08:52,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:08:52,840 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:08:52,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:08:52,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:08:52,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:08:52,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:08:52,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:08:52,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:08:52,841 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:08:52,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:08:52,841 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:08:52,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:08:52,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:08:52,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:08:52,842 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:08:52,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:08:52,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:08:52,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:08:52,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:08:52,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:08:52,843 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:08:52,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:08:52,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:08:52,844 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 [2019-11-07 04:08:53,127 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:08:53,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:08:53,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:08:53,148 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:08:53,148 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:08:53,149 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product23.cil.c [2019-11-07 04:08:53,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d41ed848/3cac99bb615949408fd315288ac6e25d/FLAGaf9886906 [2019-11-07 04:08:53,900 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:08:53,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product23.cil.c [2019-11-07 04:08:53,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d41ed848/3cac99bb615949408fd315288ac6e25d/FLAGaf9886906 [2019-11-07 04:08:54,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d41ed848/3cac99bb615949408fd315288ac6e25d [2019-11-07 04:08:54,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:08:54,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:08:54,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:08:54,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:08:54,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:08:54,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:08:54" (1/1) ... [2019-11-07 04:08:54,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16eebeb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:54, skipping insertion in model container [2019-11-07 04:08:54,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:08:54" (1/1) ... [2019-11-07 04:08:54,118 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:08:54,200 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:08:54,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:08:54,956 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:08:55,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:08:55,228 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:08:55,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55 WrapperNode [2019-11-07 04:08:55,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:08:55,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:08:55,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:08:55,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:08:55,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55" (1/1) ... [2019-11-07 04:08:55,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55" (1/1) ... [2019-11-07 04:08:55,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55" (1/1) ... [2019-11-07 04:08:55,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55" (1/1) ... [2019-11-07 04:08:55,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55" (1/1) ... [2019-11-07 04:08:55,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55" (1/1) ... [2019-11-07 04:08:55,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55" (1/1) ... [2019-11-07 04:08:55,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:08:55,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:08:55,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:08:55,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:08:55,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:08:55,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:08:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:08:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:08:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-11-07 04:08:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-11-07 04:08:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:08:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:08:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:08:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:08:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:08:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:08:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-11-07 04:08:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-11-07 04:08:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-11-07 04:08:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-11-07 04:08:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-11-07 04:08:55,550 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-11-07 04:08:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-11-07 04:08:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-11-07 04:08:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-11-07 04:08:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-11-07 04:08:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-11-07 04:08:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-11-07 04:08:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:08:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-11-07 04:08:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-11-07 04:08:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-11-07 04:08:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:08:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-11-07 04:08:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:08:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:08:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:08:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-11-07 04:08:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-11-07 04:08:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-11-07 04:08:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:08:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:08:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:08:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:08:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:08:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-11-07 04:08:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-11-07 04:08:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-11-07 04:08:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-11-07 04:08:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-11-07 04:08:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-11-07 04:08:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-11-07 04:08:55,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-11-07 04:08:55,557 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-11-07 04:08:55,557 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-11-07 04:08:55,557 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-11-07 04:08:55,557 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-11-07 04:08:55,557 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-11-07 04:08:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-11-07 04:08:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-11-07 04:08:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-11-07 04:08:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-11-07 04:08:55,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-11-07 04:08:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-11-07 04:08:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-11-07 04:08:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-11-07 04:08:55,559 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-11-07 04:08:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-11-07 04:08:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-11-07 04:08:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-11-07 04:08:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-11-07 04:08:55,560 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:08:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-11-07 04:08:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-11-07 04:08:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-11-07 04:08:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-11-07 04:08:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:08:55,561 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-11-07 04:08:55,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-11-07 04:08:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-11-07 04:08:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-11-07 04:08:55,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-11-07 04:08:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-11-07 04:08:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-11-07 04:08:55,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-11-07 04:08:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:08:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:08:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-11-07 04:08:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-11-07 04:08:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:08:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-11-07 04:08:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-11-07 04:08:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-11-07 04:08:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-11-07 04:08:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-11-07 04:08:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-11-07 04:08:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:08:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:08:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:08:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:08:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:08:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:08:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:08:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:08:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:08:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:08:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:08:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:08:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:08:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:08:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:08:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:08:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:08:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:08:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-11-07 04:08:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-11-07 04:08:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-11-07 04:08:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-11-07 04:08:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-11-07 04:08:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-11-07 04:08:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 04:08:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-11-07 04:08:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-11-07 04:08:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-11-07 04:08:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-11-07 04:08:55,573 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-11-07 04:08:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-11-07 04:08:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-11-07 04:08:55,574 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-11-07 04:08:55,575 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-11-07 04:08:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:08:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-11-07 04:08:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-11-07 04:08:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-11-07 04:08:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:08:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-11-07 04:08:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:08:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:08:55,578 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:08:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:08:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:08:55,581 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:08:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:08:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-11-07 04:08:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-11-07 04:08:55,582 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:08:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:08:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-11-07 04:08:55,583 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-11-07 04:08:55,590 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-11-07 04:08:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-11-07 04:08:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-11-07 04:08:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-11-07 04:08:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-11-07 04:08:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-11-07 04:08:55,591 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-11-07 04:08:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-11-07 04:08:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-11-07 04:08:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-11-07 04:08:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-11-07 04:08:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-11-07 04:08:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-11-07 04:08:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-11-07 04:08:55,592 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-11-07 04:08:55,593 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-11-07 04:08:55,594 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-11-07 04:08:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-11-07 04:08:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-11-07 04:08:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-11-07 04:08:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-11-07 04:08:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-11-07 04:08:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-11-07 04:08:55,595 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-11-07 04:08:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-11-07 04:08:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-11-07 04:08:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-11-07 04:08:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-11-07 04:08:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:08:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:08:55,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:09:00,516 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:09:00,517 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-07 04:09:00,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:09:00 BoogieIcfgContainer [2019-11-07 04:09:00,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:09:00,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:09:00,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:09:00,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:09:00,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:08:54" (1/3) ... [2019-11-07 04:09:00,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24408800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:09:00, skipping insertion in model container [2019-11-07 04:09:00,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:55" (2/3) ... [2019-11-07 04:09:00,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24408800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:09:00, skipping insertion in model container [2019-11-07 04:09:00,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:09:00" (3/3) ... [2019-11-07 04:09:00,527 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product23.cil.c [2019-11-07 04:09:00,538 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:09:00,547 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:09:00,560 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:09:00,591 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:09:00,591 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:09:00,591 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:09:00,592 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:09:00,592 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:09:00,592 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:09:00,592 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:09:00,592 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:09:00,626 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states. [2019-11-07 04:09:00,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-07 04:09:00,650 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:09:00,652 INFO L410 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] [2019-11-07 04:09:00,654 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:09:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:09:00,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1664173516, now seen corresponding path program 1 times [2019-11-07 04:09:00,671 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:09:00,672 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163910672] [2019-11-07 04:09:00,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:09:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:09:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:09:01,431 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163910672] [2019-11-07 04:09:01,432 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:09:01,432 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:09:01,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568092100] [2019-11-07 04:09:01,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:09:01,439 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:09:01,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:09:01,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:09:01,455 INFO L87 Difference]: Start difference. First operand 595 states. Second operand 2 states. [2019-11-07 04:09:01,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:09:01,527 INFO L93 Difference]: Finished difference Result 504 states and 744 transitions. [2019-11-07 04:09:01,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:09:01,528 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 135 [2019-11-07 04:09:01,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:09:01,553 INFO L225 Difference]: With dead ends: 504 [2019-11-07 04:09:01,553 INFO L226 Difference]: Without dead ends: 470 [2019-11-07 04:09:01,558 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:09:01,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-11-07 04:09:01,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2019-11-07 04:09:01,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-11-07 04:09:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 693 transitions. [2019-11-07 04:09:01,656 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 693 transitions. Word has length 135 [2019-11-07 04:09:01,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:09:01,659 INFO L462 AbstractCegarLoop]: Abstraction has 470 states and 693 transitions. [2019-11-07 04:09:01,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:09:01,659 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 693 transitions. [2019-11-07 04:09:01,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-07 04:09:01,668 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:09:01,669 INFO L410 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] [2019-11-07 04:09:01,669 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:09:01,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:09:01,670 INFO L82 PathProgramCache]: Analyzing trace with hash -437417159, now seen corresponding path program 1 times [2019-11-07 04:09:01,670 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:09:01,670 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60892251] [2019-11-07 04:09:01,670 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:09:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:09:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:09:02,090 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60892251] [2019-11-07 04:09:02,090 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:09:02,091 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:09:02,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060723677] [2019-11-07 04:09:02,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:09:02,094 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:09:02,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:09:02,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:09:02,095 INFO L87 Difference]: Start difference. First operand 470 states and 693 transitions. Second operand 7 states. [2019-11-07 04:09:06,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:09:06,092 INFO L93 Difference]: Finished difference Result 1315 states and 1990 transitions. [2019-11-07 04:09:06,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:09:06,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2019-11-07 04:09:06,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:09:06,101 INFO L225 Difference]: With dead ends: 1315 [2019-11-07 04:09:06,102 INFO L226 Difference]: Without dead ends: 898 [2019-11-07 04:09:06,112 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:09:06,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2019-11-07 04:09:06,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 873. [2019-11-07 04:09:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2019-11-07 04:09:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1316 transitions. [2019-11-07 04:09:06,247 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1316 transitions. Word has length 136 [2019-11-07 04:09:06,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:09:06,250 INFO L462 AbstractCegarLoop]: Abstraction has 873 states and 1316 transitions. [2019-11-07 04:09:06,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:09:06,252 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1316 transitions. [2019-11-07 04:09:06,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-11-07 04:09:06,259 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:09:06,260 INFO L410 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] [2019-11-07 04:09:06,260 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:09:06,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:09:06,261 INFO L82 PathProgramCache]: Analyzing trace with hash 490961431, now seen corresponding path program 1 times [2019-11-07 04:09:06,261 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:09:06,261 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864676033] [2019-11-07 04:09:06,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:09:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:09:06,589 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:09:06,589 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864676033] [2019-11-07 04:09:06,589 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:09:06,590 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:09:06,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375991329] [2019-11-07 04:09:06,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:09:06,591 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:09:06,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:09:06,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:09:06,592 INFO L87 Difference]: Start difference. First operand 873 states and 1316 transitions. Second operand 6 states. [2019-11-07 04:09:07,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:09:07,260 INFO L93 Difference]: Finished difference Result 912 states and 1372 transitions. [2019-11-07 04:09:07,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:09:07,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-11-07 04:09:07,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:09:07,267 INFO L225 Difference]: With dead ends: 912 [2019-11-07 04:09:07,268 INFO L226 Difference]: Without dead ends: 895 [2019-11-07 04:09:07,269 INFO L630 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 [2019-11-07 04:09:07,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2019-11-07 04:09:07,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 877. [2019-11-07 04:09:07,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2019-11-07 04:09:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1320 transitions. [2019-11-07 04:09:07,323 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1320 transitions. Word has length 140 [2019-11-07 04:09:07,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:09:07,324 INFO L462 AbstractCegarLoop]: Abstraction has 877 states and 1320 transitions. [2019-11-07 04:09:07,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:09:07,324 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1320 transitions. [2019-11-07 04:09:07,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-07 04:09:07,328 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:09:07,328 INFO L410 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] [2019-11-07 04:09:07,328 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:09:07,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:09:07,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1144105526, now seen corresponding path program 1 times [2019-11-07 04:09:07,329 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:09:07,329 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144427386] [2019-11-07 04:09:07,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:09:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:09:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:09:07,568 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144427386] [2019-11-07 04:09:07,568 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:09:07,568 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:09:07,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497468718] [2019-11-07 04:09:07,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:09:07,569 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:09:07,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:09:07,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:09:07,570 INFO L87 Difference]: Start difference. First operand 877 states and 1320 transitions. Second operand 8 states. [2019-11-07 04:09:07,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:09:07,649 INFO L93 Difference]: Finished difference Result 898 states and 1346 transitions. [2019-11-07 04:09:07,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:09:07,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-11-07 04:09:07,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:09:07,656 INFO L225 Difference]: With dead ends: 898 [2019-11-07 04:09:07,657 INFO L226 Difference]: Without dead ends: 881 [2019-11-07 04:09:07,658 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:09:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-11-07 04:09:07,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 877. [2019-11-07 04:09:07,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2019-11-07 04:09:07,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1318 transitions. [2019-11-07 04:09:07,707 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1318 transitions. Word has length 145 [2019-11-07 04:09:07,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:09:07,708 INFO L462 AbstractCegarLoop]: Abstraction has 877 states and 1318 transitions. [2019-11-07 04:09:07,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:09:07,708 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1318 transitions. [2019-11-07 04:09:07,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 04:09:07,712 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:09:07,713 INFO L410 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] [2019-11-07 04:09:07,713 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:09:07,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:09:07,713 INFO L82 PathProgramCache]: Analyzing trace with hash -216213488, now seen corresponding path program 1 times [2019-11-07 04:09:07,714 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:09:07,714 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693184304] [2019-11-07 04:09:07,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:09:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:09:08,371 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2019-11-07 04:09:09,108 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:09:09,109 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693184304] [2019-11-07 04:09:09,109 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684342287] [2019-11-07 04:09:09,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:09:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:09:09,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 3298 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-07 04:09:09,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:09:09,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,112 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:09:10,112 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:09:10,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:09:10,778 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:09:10,779 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [32] total 37 [2019-11-07 04:09:10,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890387510] [2019-11-07 04:09:10,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:09:10,780 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:09:10,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:09:10,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1232, Unknown=0, NotChecked=0, Total=1332 [2019-11-07 04:09:10,781 INFO L87 Difference]: Start difference. First operand 877 states and 1318 transitions. Second operand 7 states. [2019-11-07 04:09:10,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:09:10,885 INFO L93 Difference]: Finished difference Result 920 states and 1372 transitions. [2019-11-07 04:09:10,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:09:10,886 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2019-11-07 04:09:10,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:09:10,896 INFO L225 Difference]: With dead ends: 920 [2019-11-07 04:09:10,896 INFO L226 Difference]: Without dead ends: 903 [2019-11-07 04:09:10,900 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=104, Invalid=1302, Unknown=0, NotChecked=0, Total=1406 [2019-11-07 04:09:10,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2019-11-07 04:09:10,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 889. [2019-11-07 04:09:10,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 889 states. [2019-11-07 04:09:10,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1330 transitions. [2019-11-07 04:09:10,962 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1330 transitions. Word has length 160 [2019-11-07 04:09:10,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:09:10,964 INFO L462 AbstractCegarLoop]: Abstraction has 889 states and 1330 transitions. [2019-11-07 04:09:10,964 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:09:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1330 transitions. [2019-11-07 04:09:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 04:09:10,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:09:10,971 INFO L410 BasicCegarLoop]: trace histogram [7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:09:11,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:09:11,181 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:09:11,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:09:11,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1336993529, now seen corresponding path program 1 times [2019-11-07 04:09:11,182 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:09:11,183 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271501767] [2019-11-07 04:09:11,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:09:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:09:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-07 04:09:11,758 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271501767] [2019-11-07 04:09:11,758 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9243100] [2019-11-07 04:09:11,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:09:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:09:12,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 3362 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-07 04:09:12,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:09:13,086 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-11-07 04:09:13,087 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:09:13,723 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:14,086 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-11-07 04:09:14,829 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:15,300 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-11-07 04:09:15,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,615 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:15,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:16,109 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:16,519 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-11-07 04:09:17,248 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:17,703 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-11-07 04:09:17,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:17,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:18,327 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:18,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:18,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:18,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:18,972 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-07 04:09:19,185 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:19,724 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-07 04:09:19,906 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:09:20,400 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:21,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,057 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,062 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,065 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,066 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,066 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:21,571 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:22,041 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,058 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,063 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,064 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,065 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,692 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:22,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:22,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,984 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,986 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:22,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:22,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:22,991 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,506 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:09:23,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:09:23,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,572 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,573 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,644 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,644 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,645 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:09:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-11-07 04:09:23,775 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1074293787] [2019-11-07 04:09:23,813 INFO L159 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-11-07 04:09:23,813 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:09:23,822 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:09:23,828 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:09:23,829 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs