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_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:02:57,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:02:57,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:02:57,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:02:57,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:02:57,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:02:57,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:02:57,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:02:57,967 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:02:57,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:02:57,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:02:57,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:02:57,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:02:57,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:02:57,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:02:57,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:02:57,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:02:57,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:02:57,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:02:57,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:02:57,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:02:57,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:02:57,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:02:57,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:02:58,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:02:58,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:02:58,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:02:58,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:02:58,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:02:58,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:02:58,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:02:58,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:02:58,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:02:58,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:02:58,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:02:58,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:02:58,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:02:58,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:02:58,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:02:58,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:02:58,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:02:58,013 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:02:58,040 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:02:58,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:02:58,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:02:58,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:02:58,042 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:02:58,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:02:58,042 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:02:58,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:02:58,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:02:58,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:02:58,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:02:58,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:02:58,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:02:58,043 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:02:58,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:02:58,044 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:02:58,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:02:58,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:02:58,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:02:58,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:02:58,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:02:58,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:02:58,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:02:58,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:02:58,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:02:58,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:02:58,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:02:58,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:02:58,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:02:58,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:02:58,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:02:58,321 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:02:58,323 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:02:58,323 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:02:58,324 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product19.cil.c [2019-10-13 23:02:58,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e57f8a0e/e11a64294bd343a9803e44c29529d7ad/FLAGdb8787247 [2019-10-13 23:02:59,092 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:02:59,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product19.cil.c [2019-10-13 23:02:59,112 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e57f8a0e/e11a64294bd343a9803e44c29529d7ad/FLAGdb8787247 [2019-10-13 23:02:59,254 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e57f8a0e/e11a64294bd343a9803e44c29529d7ad [2019-10-13 23:02:59,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:02:59,266 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:02:59,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:02:59,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:02:59,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:02:59,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:02:59" (1/1) ... [2019-10-13 23:02:59,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c28f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:02:59, skipping insertion in model container [2019-10-13 23:02:59,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:02:59" (1/1) ... [2019-10-13 23:02:59,279 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:02:59,359 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:03:00,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:03:00,178 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:03:00,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:03:00,413 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:03:00,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00 WrapperNode [2019-10-13 23:03:00,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:03:00,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:03:00,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:03:00,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:03:00,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00" (1/1) ... [2019-10-13 23:03:00,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00" (1/1) ... [2019-10-13 23:03:00,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00" (1/1) ... [2019-10-13 23:03:00,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00" (1/1) ... [2019-10-13 23:03:00,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00" (1/1) ... [2019-10-13 23:03:00,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00" (1/1) ... [2019-10-13 23:03:00,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00" (1/1) ... [2019-10-13 23:03:00,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:03:00,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:03:00,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:03:00,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:03:00,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:03:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:03:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:03:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:03:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:03:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 23:03:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 23:03:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 23:03:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 23:03:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 23:03:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 23:03:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 23:03:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 23:03:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 23:03:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 23:03:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 23:03:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 23:03:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 23:03:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 23:03:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 23:03:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 23:03:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 23:03:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 23:03:00,767 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 23:03:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:03:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 23:03:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 23:03:00,768 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 23:03:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:03:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 23:03:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:03:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:03:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:03:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:03:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:03:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:03:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:03:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:03:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-13 23:03:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-13 23:03:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-13 23:03:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 23:03:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 23:03:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 23:03:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-13 23:03:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 23:03:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 23:03:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 23:03:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 23:03:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 23:03:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 23:03:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 23:03:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 23:03:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 23:03:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 23:03:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 23:03:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 23:03:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-13 23:03:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 23:03:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 23:03:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 23:03:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-13 23:03:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 23:03:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 23:03:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 23:03:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:03:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 23:03:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 23:03:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-13 23:03:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-13 23:03:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:03:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 23:03:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 23:03:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:03:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:03:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:03:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:03:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:03:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:03:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:03:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:03:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 23:03:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 23:03:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:03:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:03:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 23:03:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 23:03:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 23:03:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 23:03:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 23:03:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 23:03:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 23:03:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 23:03:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 23:03:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 23:03:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 23:03:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-13 23:03:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 23:03:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 23:03:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 23:03:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 23:03:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 23:03:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 23:03:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:03:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 23:03:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 23:03:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 23:03:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 23:03:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 23:03:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 23:03:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 23:03:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 23:03:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:03:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 23:03:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:03:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:03:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-13 23:03:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:03:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:03:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:03:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:03:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:03:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:03:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:03:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 23:03:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 23:03:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-13 23:03:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:03:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 23:03:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 23:03:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 23:03:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 23:03:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 23:03:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-13 23:03:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-13 23:03:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-13 23:03:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 23:03:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 23:03:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 23:03:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 23:03:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 23:03:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 23:03:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-13 23:03:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 23:03:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 23:03:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-13 23:03:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 23:03:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 23:03:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 23:03:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:03:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 23:03:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 23:03:00,811 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 23:03:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:03:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:03:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:03:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:03:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:03:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:03:00,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:03:00,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:03:00,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:03:00,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:03:00,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:03:00,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:03:00,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:03:00,813 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:03:00,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:03:00,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:03:00,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:03:00,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:03:00,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:03:05,703 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:03:05,703 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 23:03:05,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:05 BoogieIcfgContainer [2019-10-13 23:03:05,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:03:05,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:03:05,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:03:05,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:03:05,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:02:59" (1/3) ... [2019-10-13 23:03:05,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdfd3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:05, skipping insertion in model container [2019-10-13 23:03:05,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:03:00" (2/3) ... [2019-10-13 23:03:05,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdfd3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:03:05, skipping insertion in model container [2019-10-13 23:03:05,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:03:05" (3/3) ... [2019-10-13 23:03:05,712 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product19.cil.c [2019-10-13 23:03:05,722 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:03:05,731 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:03:05,744 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:03:05,777 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:03:05,778 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:03:05,778 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:03:05,778 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:03:05,778 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:03:05,778 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:03:05,778 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:03:05,779 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:03:05,813 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states. [2019-10-13 23:03:05,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-13 23:03:05,836 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:05,838 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] [2019-10-13 23:03:05,840 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:05,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:05,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1031946066, now seen corresponding path program 1 times [2019-10-13 23:03:05,858 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:05,858 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24415230] [2019-10-13 23:03:05,858 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:05,859 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:05,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:03:06,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24415230] [2019-10-13 23:03:06,635 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:06,636 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:03:06,636 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600654267] [2019-10-13 23:03:06,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:03:06,643 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:06,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:03:06,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:03:06,661 INFO L87 Difference]: Start difference. First operand 570 states. Second operand 2 states. [2019-10-13 23:03:06,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:06,746 INFO L93 Difference]: Finished difference Result 479 states and 712 transitions. [2019-10-13 23:03:06,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:03:06,748 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 135 [2019-10-13 23:03:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:06,777 INFO L225 Difference]: With dead ends: 479 [2019-10-13 23:03:06,777 INFO L226 Difference]: Without dead ends: 445 [2019-10-13 23:03:06,785 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 [2019-10-13 23:03:06,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-13 23:03:06,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2019-10-13 23:03:06,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2019-10-13 23:03:06,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 661 transitions. [2019-10-13 23:03:06,908 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 661 transitions. Word has length 135 [2019-10-13 23:03:06,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:06,910 INFO L462 AbstractCegarLoop]: Abstraction has 445 states and 661 transitions. [2019-10-13 23:03:06,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:03:06,911 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 661 transitions. [2019-10-13 23:03:06,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-13 23:03:06,921 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:06,922 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] [2019-10-13 23:03:06,922 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:06,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:06,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1066639949, now seen corresponding path program 1 times [2019-10-13 23:03:06,923 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:06,923 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85872813] [2019-10-13 23:03:06,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:06,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:06,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:07,496 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:03:07,497 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85872813] [2019-10-13 23:03:07,497 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:07,497 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:03:07,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899516148] [2019-10-13 23:03:07,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:03:07,502 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:07,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:03:07,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:03:07,502 INFO L87 Difference]: Start difference. First operand 445 states and 661 transitions. Second operand 7 states. [2019-10-13 23:03:11,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:11,318 INFO L93 Difference]: Finished difference Result 1240 states and 1894 transitions. [2019-10-13 23:03:11,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:03:11,318 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2019-10-13 23:03:11,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:11,329 INFO L225 Difference]: With dead ends: 1240 [2019-10-13 23:03:11,329 INFO L226 Difference]: Without dead ends: 848 [2019-10-13 23:03:11,336 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:03:11,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2019-10-13 23:03:11,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 823. [2019-10-13 23:03:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2019-10-13 23:03:11,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1252 transitions. [2019-10-13 23:03:11,413 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1252 transitions. Word has length 136 [2019-10-13 23:03:11,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:11,414 INFO L462 AbstractCegarLoop]: Abstraction has 823 states and 1252 transitions. [2019-10-13 23:03:11,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:03:11,414 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1252 transitions. [2019-10-13 23:03:11,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-13 23:03:11,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:11,422 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] [2019-10-13 23:03:11,422 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:11,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:11,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1466123957, now seen corresponding path program 1 times [2019-10-13 23:03:11,423 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:11,423 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457151496] [2019-10-13 23:03:11,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:11,424 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:11,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:03:11,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457151496] [2019-10-13 23:03:11,676 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:11,676 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:03:11,676 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639669499] [2019-10-13 23:03:11,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:03:11,677 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:11,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:03:11,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:03:11,678 INFO L87 Difference]: Start difference. First operand 823 states and 1252 transitions. Second operand 6 states. [2019-10-13 23:03:12,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:12,333 INFO L93 Difference]: Finished difference Result 862 states and 1308 transitions. [2019-10-13 23:03:12,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:03:12,334 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-10-13 23:03:12,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:12,346 INFO L225 Difference]: With dead ends: 862 [2019-10-13 23:03:12,346 INFO L226 Difference]: Without dead ends: 845 [2019-10-13 23:03:12,348 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 [2019-10-13 23:03:12,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-13 23:03:12,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 827. [2019-10-13 23:03:12,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-10-13 23:03:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1256 transitions. [2019-10-13 23:03:12,461 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1256 transitions. Word has length 140 [2019-10-13 23:03:12,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:12,464 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 1256 transitions. [2019-10-13 23:03:12,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:03:12,465 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1256 transitions. [2019-10-13 23:03:12,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 23:03:12,472 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:12,472 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] [2019-10-13 23:03:12,473 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:12,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:12,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1925718676, now seen corresponding path program 1 times [2019-10-13 23:03:12,474 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:12,474 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545424640] [2019-10-13 23:03:12,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:12,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:12,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 23:03:12,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545424640] [2019-10-13 23:03:12,740 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:03:12,741 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 23:03:12,741 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324130147] [2019-10-13 23:03:12,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 23:03:12,742 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:12,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 23:03:12,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:03:12,743 INFO L87 Difference]: Start difference. First operand 827 states and 1256 transitions. Second operand 8 states. [2019-10-13 23:03:12,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:12,819 INFO L93 Difference]: Finished difference Result 848 states and 1282 transitions. [2019-10-13 23:03:12,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 23:03:12,820 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-10-13 23:03:12,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:12,827 INFO L225 Difference]: With dead ends: 848 [2019-10-13 23:03:12,827 INFO L226 Difference]: Without dead ends: 831 [2019-10-13 23:03:12,829 INFO L600 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 [2019-10-13 23:03:12,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2019-10-13 23:03:12,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 827. [2019-10-13 23:03:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-10-13 23:03:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1254 transitions. [2019-10-13 23:03:12,878 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1254 transitions. Word has length 145 [2019-10-13 23:03:12,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:12,883 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 1254 transitions. [2019-10-13 23:03:12,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 23:03:12,883 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1254 transitions. [2019-10-13 23:03:12,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:03:12,887 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:12,887 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] [2019-10-13 23:03:12,888 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:12,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:12,888 INFO L82 PathProgramCache]: Analyzing trace with hash 2019531158, now seen corresponding path program 1 times [2019-10-13 23:03:12,888 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:12,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773340245] [2019-10-13 23:03:12,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:12,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:12,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:14,047 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:03:14,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773340245] [2019-10-13 23:03:14,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526446370] [2019-10-13 23:03:14,048 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 [2019-10-13 23:03:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:14,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 3298 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-13 23:03:14,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:03:14,879 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:03:14,879 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:03:15,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:15,592 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 23:03:15,593 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:03:15,593 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [29] total 36 [2019-10-13 23:03:15,593 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778777405] [2019-10-13 23:03:15,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:03:15,594 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:03:15,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:03:15,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1164, Unknown=0, NotChecked=0, Total=1260 [2019-10-13 23:03:15,595 INFO L87 Difference]: Start difference. First operand 827 states and 1254 transitions. Second operand 9 states. [2019-10-13 23:03:15,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:03:15,694 INFO L93 Difference]: Finished difference Result 870 states and 1308 transitions. [2019-10-13 23:03:15,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:03:15,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2019-10-13 23:03:15,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:03:15,708 INFO L225 Difference]: With dead ends: 870 [2019-10-13 23:03:15,708 INFO L226 Difference]: Without dead ends: 853 [2019-10-13 23:03:15,712 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 331 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=100, Invalid=1232, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 23:03:15,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2019-10-13 23:03:15,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 839. [2019-10-13 23:03:15,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2019-10-13 23:03:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1266 transitions. [2019-10-13 23:03:15,789 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1266 transitions. Word has length 160 [2019-10-13 23:03:15,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:03:15,790 INFO L462 AbstractCegarLoop]: Abstraction has 839 states and 1266 transitions. [2019-10-13 23:03:15,790 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:03:15,790 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1266 transitions. [2019-10-13 23:03:15,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 23:03:15,800 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:03:15,800 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] [2019-10-13 23:03:16,013 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:03:16,013 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:03:16,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:03:16,014 INFO L82 PathProgramCache]: Analyzing trace with hash 525391551, now seen corresponding path program 1 times [2019-10-13 23:03:16,014 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:03:16,014 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467037580] [2019-10-13 23:03:16,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:16,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:03:16,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:03:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:16,740 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 23:03:16,741 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467037580] [2019-10-13 23:03:16,741 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658782689] [2019-10-13 23:03:16,741 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 [2019-10-13 23:03:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:03:17,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 3362 conjuncts, 41 conjunts are in the unsatisfiable core [2019-10-13 23:03:17,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:03:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-13 23:03:18,049 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:03:18,536 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:18,889 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-10-13 23:03:19,445 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-13 23:03:19,670 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:20,079 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-10-13 23:03:20,370 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,371 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,371 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,374 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,374 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,377 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,378 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,379 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,379 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,380 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:20,864 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:21,910 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:22,341 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-10-13 23:03:22,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,474 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,476 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:22,904 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:23,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,275 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:23,695 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:24,301 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-13 23:03:24,882 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:25,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,524 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,526 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,526 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:25,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,013 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:26,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,474 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,474 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,476 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,478 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,478 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,479 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,479 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,481 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,482 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,484 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,486 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:26,486 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,029 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:27,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,293 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,300 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,884 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-13 23:03:27,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:27,962 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-13 23:03:27,963 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:28,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:28,017 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:28,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:28,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:28,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:03:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-13 23:03:28,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1637601822] [2019-10-13 23:03:28,179 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-13 23:03:28,179 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:03:28,187 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:03:28,196 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:03:28,197 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs