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 0.1.24-13a467a-m [2019-10-15 03:07:08,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:07:08,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:07:08,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:07:08,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:07:08,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:07:08,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:07:09,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:07:09,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:07:09,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:07:09,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:07:09,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:07:09,020 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:07:09,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:07:09,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:07:09,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:07:09,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:07:09,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:07:09,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:07:09,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:07:09,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:07:09,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:07:09,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:07:09,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:07:09,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:07:09,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:07:09,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:07:09,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:07:09,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:07:09,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:07:09,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:07:09,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:07:09,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:07:09,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:07:09,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:07:09,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:07:09,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:07:09,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:07:09,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:07:09,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:07:09,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:07:09,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:07:09,058 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:07:09,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:07:09,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:07:09,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:07:09,060 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:07:09,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:07:09,060 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:07:09,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:07:09,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:07:09,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:07:09,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:07:09,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:07:09,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:07:09,062 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:07:09,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:07:09,062 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:07:09,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:07:09,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:07:09,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:07:09,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:07:09,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:07:09,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:07:09,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:07:09,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:07:09,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:07:09,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:07:09,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:07:09,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:07:09,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:07:09,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:07:09,370 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:07:09,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:07:09,377 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:07:09,377 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:07:09,380 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product23.cil.c [2019-10-15 03:07:09,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8239de0ba/f3d8569bb1a74482904513bc2bb03557/FLAGdd66b74d3 [2019-10-15 03:07:10,106 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:07:10,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product23.cil.c [2019-10-15 03:07:10,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8239de0ba/f3d8569bb1a74482904513bc2bb03557/FLAGdd66b74d3 [2019-10-15 03:07:10,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8239de0ba/f3d8569bb1a74482904513bc2bb03557 [2019-10-15 03:07:10,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:07:10,328 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:07:10,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:10,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:07:10,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:07:10,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:10" (1/1) ... [2019-10-15 03:07:10,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec5bf2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:10, skipping insertion in model container [2019-10-15 03:07:10,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:10" (1/1) ... [2019-10-15 03:07:10,351 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:07:10,469 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:07:11,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:11,246 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:07:11,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:11,597 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:07:11,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11 WrapperNode [2019-10-15 03:07:11,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:11,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:07:11,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:07:11,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:07:11,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11" (1/1) ... [2019-10-15 03:07:11,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11" (1/1) ... [2019-10-15 03:07:11,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11" (1/1) ... [2019-10-15 03:07:11,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11" (1/1) ... [2019-10-15 03:07:11,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11" (1/1) ... [2019-10-15 03:07:11,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11" (1/1) ... [2019-10-15 03:07:11,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11" (1/1) ... [2019-10-15 03:07:11,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:07:11,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:07:11,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:07:11,817 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:07:11,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:07:11,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:07:11,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:07:11,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:11,910 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:07:11,910 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:07:11,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:11,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:07:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:07:11,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:07:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:11,916 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:07:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:07:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:07:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:07:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:07:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:07:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:07:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:07:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:07:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:07:11,920 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:07:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:07:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:07:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:07:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:07:11,921 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:07:11,922 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:07:11,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:07:11,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:07:11,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:07:11,922 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:07:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:07:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:07:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:07:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:07:11,923 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:07:11,924 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:07:11,924 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:07:11,924 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-15 03:07:11,924 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:07:11,924 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-15 03:07:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:07:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:07:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:07:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:07:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:07:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:07:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:07:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:07:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:07:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:07:11,926 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-15 03:07:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-15 03:07:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:07:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:07:11,927 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:07:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-15 03:07:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-15 03:07:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:07:11,928 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:07:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:07:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:07:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:07:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-15 03:07:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-15 03:07:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:07:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:07:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:07:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:07:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:07:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:07:11,931 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:07:11,931 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:07:11,931 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:07:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:07:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:07:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:07:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:07:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:07:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:07:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:07:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:07:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:07:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:07:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:07:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:07:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:07:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:07:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:07:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:07:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:07:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:07:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:07:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:07:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:07:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:07:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:07:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:07:11,936 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:07:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:07:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:07:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:07:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:07:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:07:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:07:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:07:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:07:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:07:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:07:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:07:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:07:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:07:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:07:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:07:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:07:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:07:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:07:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:07:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:07:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:07:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:07:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:07:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:07:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:07:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:07:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:07:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:07:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:07:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:07:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:07:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:07:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:07:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:07:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:07:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:07:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:07:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:07:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:07:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-15 03:07:11,946 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-15 03:07:11,946 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-15 03:07:11,946 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-15 03:07:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:07:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:07:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:07:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:07:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:07:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-15 03:07:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-15 03:07:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:07:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:07:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-15 03:07:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-15 03:07:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:07:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:07:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:07:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:07:11,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:07:11,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:07:11,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:07:18,043 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:07:18,043 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:07:18,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:18 BoogieIcfgContainer [2019-10-15 03:07:18,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:07:18,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:07:18,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:07:18,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:07:18,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:07:10" (1/3) ... [2019-10-15 03:07:18,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403d04bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:18, skipping insertion in model container [2019-10-15 03:07:18,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:11" (2/3) ... [2019-10-15 03:07:18,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@403d04bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:18, skipping insertion in model container [2019-10-15 03:07:18,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:18" (3/3) ... [2019-10-15 03:07:18,053 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product23.cil.c [2019-10-15 03:07:18,063 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:07:18,072 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:07:18,085 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:07:18,115 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:07:18,115 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:07:18,115 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:07:18,115 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:07:18,116 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:07:18,116 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:07:18,116 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:07:18,116 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:07:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states. [2019-10-15 03:07:18,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-15 03:07:18,175 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:18,176 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:18,178 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:18,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:18,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1664173516, now seen corresponding path program 1 times [2019-10-15 03:07:18,194 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:18,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185591311] [2019-10-15 03:07:18,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:18,195 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:18,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:18,850 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:18,851 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185591311] [2019-10-15 03:07:18,852 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:18,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:07:18,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005310842] [2019-10-15 03:07:18,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:07:18,858 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:18,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:07:18,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:07:18,875 INFO L87 Difference]: Start difference. First operand 595 states. Second operand 2 states. [2019-10-15 03:07:18,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:18,945 INFO L93 Difference]: Finished difference Result 504 states and 744 transitions. [2019-10-15 03:07:18,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:07:18,947 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 135 [2019-10-15 03:07:18,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:18,971 INFO L225 Difference]: With dead ends: 504 [2019-10-15 03:07:18,971 INFO L226 Difference]: Without dead ends: 470 [2019-10-15 03:07:18,976 INFO L600 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 [2019-10-15 03:07:18,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-10-15 03:07:19,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2019-10-15 03:07:19,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-10-15 03:07:19,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 693 transitions. [2019-10-15 03:07:19,072 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 693 transitions. Word has length 135 [2019-10-15 03:07:19,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:19,075 INFO L462 AbstractCegarLoop]: Abstraction has 470 states and 693 transitions. [2019-10-15 03:07:19,075 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:07:19,076 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 693 transitions. [2019-10-15 03:07:19,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 03:07:19,085 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:19,086 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:19,086 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:19,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:19,087 INFO L82 PathProgramCache]: Analyzing trace with hash -437417159, now seen corresponding path program 1 times [2019-10-15 03:07:19,087 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:19,087 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142779171] [2019-10-15 03:07:19,087 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:19,088 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:19,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:19,500 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:19,500 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142779171] [2019-10-15 03:07:19,501 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:19,501 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:07:19,501 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121590352] [2019-10-15 03:07:19,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:07:19,505 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:19,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:07:19,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:07:19,506 INFO L87 Difference]: Start difference. First operand 470 states and 693 transitions. Second operand 7 states. [2019-10-15 03:07:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:24,961 INFO L93 Difference]: Finished difference Result 1315 states and 1990 transitions. [2019-10-15 03:07:24,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:07:24,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2019-10-15 03:07:24,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:24,971 INFO L225 Difference]: With dead ends: 1315 [2019-10-15 03:07:24,972 INFO L226 Difference]: Without dead ends: 898 [2019-10-15 03:07:24,980 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:07:24,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2019-10-15 03:07:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 873. [2019-10-15 03:07:25,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 873 states. [2019-10-15 03:07:25,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1316 transitions. [2019-10-15 03:07:25,123 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1316 transitions. Word has length 136 [2019-10-15 03:07:25,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:25,126 INFO L462 AbstractCegarLoop]: Abstraction has 873 states and 1316 transitions. [2019-10-15 03:07:25,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:07:25,127 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1316 transitions. [2019-10-15 03:07:25,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-15 03:07:25,136 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:25,136 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:25,137 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:25,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:25,138 INFO L82 PathProgramCache]: Analyzing trace with hash 490961431, now seen corresponding path program 1 times [2019-10-15 03:07:25,138 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:25,138 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096340055] [2019-10-15 03:07:25,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:25,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:25,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:25,548 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:25,549 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096340055] [2019-10-15 03:07:25,549 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:25,549 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:07:25,550 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349409092] [2019-10-15 03:07:25,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:07:25,551 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:25,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:07:25,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:07:25,552 INFO L87 Difference]: Start difference. First operand 873 states and 1316 transitions. Second operand 6 states. [2019-10-15 03:07:26,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:26,246 INFO L93 Difference]: Finished difference Result 912 states and 1372 transitions. [2019-10-15 03:07:26,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:07:26,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-10-15 03:07:26,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:26,255 INFO L225 Difference]: With dead ends: 912 [2019-10-15 03:07:26,255 INFO L226 Difference]: Without dead ends: 895 [2019-10-15 03:07:26,256 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:07:26,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2019-10-15 03:07:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 877. [2019-10-15 03:07:26,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2019-10-15 03:07:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1320 transitions. [2019-10-15 03:07:26,309 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1320 transitions. Word has length 140 [2019-10-15 03:07:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:26,309 INFO L462 AbstractCegarLoop]: Abstraction has 877 states and 1320 transitions. [2019-10-15 03:07:26,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:07:26,310 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1320 transitions. [2019-10-15 03:07:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:07:26,313 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:26,313 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:26,314 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:26,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:26,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1144105526, now seen corresponding path program 1 times [2019-10-15 03:07:26,314 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:26,314 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486461145] [2019-10-15 03:07:26,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:26,315 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:26,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:26,700 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:26,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486461145] [2019-10-15 03:07:26,701 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:26,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:07:26,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963924123] [2019-10-15 03:07:26,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:07:26,702 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:26,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:07:26,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:07:26,703 INFO L87 Difference]: Start difference. First operand 877 states and 1320 transitions. Second operand 8 states. [2019-10-15 03:07:26,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:26,902 INFO L93 Difference]: Finished difference Result 898 states and 1346 transitions. [2019-10-15 03:07:26,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 03:07:26,903 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-10-15 03:07:26,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:26,911 INFO L225 Difference]: With dead ends: 898 [2019-10-15 03:07:26,911 INFO L226 Difference]: Without dead ends: 881 [2019-10-15 03:07:26,912 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:07:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-10-15 03:07:27,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 877. [2019-10-15 03:07:27,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2019-10-15 03:07:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1318 transitions. [2019-10-15 03:07:27,014 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1318 transitions. Word has length 145 [2019-10-15 03:07:27,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:27,018 INFO L462 AbstractCegarLoop]: Abstraction has 877 states and 1318 transitions. [2019-10-15 03:07:27,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:07:27,018 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1318 transitions. [2019-10-15 03:07:27,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 03:07:27,030 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:27,030 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:27,031 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:27,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:27,031 INFO L82 PathProgramCache]: Analyzing trace with hash -216213488, now seen corresponding path program 1 times [2019-10-15 03:07:27,032 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:27,032 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990312620] [2019-10-15 03:07:27,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:27,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:27,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:28,643 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:07:28,643 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990312620] [2019-10-15 03:07:28,644 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126362369] [2019-10-15 03:07:28,644 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 [2019-10-15 03:07:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:29,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 3298 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-15 03:07:29,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:07:29,647 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:29,872 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 03:07:29,873 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:07:30,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:30,865 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 03:07:30,866 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:07:30,866 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [32] total 37 [2019-10-15 03:07:30,866 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395200603] [2019-10-15 03:07:30,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:07:30,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:30,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:07:30,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1232, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 03:07:30,868 INFO L87 Difference]: Start difference. First operand 877 states and 1318 transitions. Second operand 7 states. [2019-10-15 03:07:30,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:30,999 INFO L93 Difference]: Finished difference Result 920 states and 1372 transitions. [2019-10-15 03:07:30,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:07:30,999 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2019-10-15 03:07:31,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:31,008 INFO L225 Difference]: With dead ends: 920 [2019-10-15 03:07:31,008 INFO L226 Difference]: Without dead ends: 903 [2019-10-15 03:07:31,010 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=104, Invalid=1302, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 03:07:31,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2019-10-15 03:07:31,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 889. [2019-10-15 03:07:31,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 889 states. [2019-10-15 03:07:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1330 transitions. [2019-10-15 03:07:31,058 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1330 transitions. Word has length 160 [2019-10-15 03:07:31,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:31,058 INFO L462 AbstractCegarLoop]: Abstraction has 889 states and 1330 transitions. [2019-10-15 03:07:31,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:07:31,058 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1330 transitions. [2019-10-15 03:07:31,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 03:07:31,063 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:31,063 INFO L380 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] [2019-10-15 03:07:31,272 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:07:31,272 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:31,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:31,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1336993529, now seen corresponding path program 1 times [2019-10-15 03:07:31,273 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:31,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904134999] [2019-10-15 03:07:31,274 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:31,274 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:31,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:31,909 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 03:07:31,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904134999] [2019-10-15 03:07:31,910 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859307179] [2019-10-15 03:07:31,910 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 [2019-10-15 03:07:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:32,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 3362 conjuncts, 41 conjunts are in the unsatisfiable core [2019-10-15 03:07:32,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:07:32,759 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-10-15 03:07:33,379 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 03:07:33,379 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:07:33,901 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:34,964 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:35,391 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-10-15 03:07:35,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,718 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,729 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,739 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,742 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,747 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,220 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 03:07:36,696 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:37,799 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:37,997 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2019-10-15 03:07:38,292 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-10-15 03:07:38,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,426 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,426 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,430 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,431 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:38,914 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:39,204 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,206 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,383 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,911 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:40,524 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:41,071 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:41,435 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-10-15 03:07:41,781 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-10-15 03:07:41,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,888 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,890 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,376 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:42,745 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-10-15 03:07:42,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,188 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 03:07:43,498 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:43,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,765 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:43,765 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,768 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,770 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,771 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:43,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:43,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:43,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,341 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:44,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:44,411 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,412 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,412 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 03:07:44,726 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1617787066] [2019-10-15 03:07:44,757 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-15 03:07:44,757 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:07:44,764 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:07:44,780 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:07:44,781 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs